BUKU PROGRAM SPSST 2013 pdf

Perutusan Timbalan Naib Canselor Akademik dan Antarabangsa

Bismillahir Rahmanir Rahim Assalammualaikum Warahmatullahhi Wabarakatuh dan Salam sejahtera Syukur ke hadrat Allah S.W.T kerana limpah kurnia-Nya sekali pada tahun ini 2013, Seminar

Pascasiswazah Sekolah Sains dan Teknologi dapat dilaksanakan dengan jayanya. Syabas dan tahniah diucapkan di atas kerjasama antara Sekolah Sains dan Teknologi dan Pusat Pengajian Pascasiswazah serta Jawatankuasa Pelaksana Seminar atas usaha gigih dan dedikasi dalam memastikan kelancaran seminar ini.

Dengan penganjuran program seumpama ini, pelajar Pascasiswazah dapat menyumbang hasil penyelidikan, kreativiti serta inovasi kearah pembangunan serta kemajuan negara dan masyarakat. Semua mahasiswa perlu merebut peluang keemasan ini untuk membentang idea penyelidikan seterusnya berkongsi ilmu serta kemahiran di antara satu sama lain.

Saya berharap agar seminar ini akan mencapai objektif yang disasarkan bagi menyediakan platform kepada penyelidik untuk membincangkan, berkongsi serta bertukar idea dan hasil penemuan dalam kajian sains dan teknologi. Adalah menjadi harapan pihak universiti melalui program sebegini, mahasiswa yang cemerlang dari segi akademik dan sahsiah dapat dilahirkan sejajar dengan Misi serta Visi Universiti Malaysia Sabah.

Setinggi-tinggi penghargaan dan sekalung budi sekali lagi buat mereka yang menjayakan seminar ini sama ada secara langsung atau tidak langsung terutamanya kepada AJK Seminar dan Pusat Pengajian Pascasiswazah atas kerjasama yang diberikan.

Sekian, terima kasih. “PENYELIDIKAN TUNJANG TRANSFORMASI PENYELIDIKAN UNIVERSITI”

Supt/KS Prof Dr Shariff Abd. Kadir S. Omang Al-Haj

Timbalan Naib Canselor Universiti Malaysia Sabah

Kata-Kata Aluan Dekan Sekolah Sains & Teknologi

Bismillahir Rahmanir Rahim Assalammualaikum Warahmatullahhi Wabarakatuh dan Salam sejahtera Alhamdulillah, syukur ke hadrat Ilahi, maka dengan izin-Nya, Seminar Pascasiswazah Sekolah

Sains dan Teknologi bejaya dianjurkan pada tahun ini dengan kerjasama Sekolah Sains dan Teknologi dan Pusat Pengajian Pascasiswazah. Dalam kesempatan ini saya ingin mengucapakan setinggi-tinggi tahniah dan amat berbangga dengan komitmen yang diberikan oleh para pensyarah dan para pelajar pascasiswazah.

Seminar ini diharap dapat menyumbang ilmu dan manfaat kepada semua pihak terutama para pelajar Pascasiswazah Sekolah Sains dan Teknologi. Selain itu diharapkan hubungan di antara para pelajar Pascasiswazah dengan para pensyarah dapat dijalinkan. Secara tidak langsung, seminar ini turut manjadi medan perkongsian ilmu dalam dalam menghasilkan penyelidikan yang bermutu dan berkualiti.

Seminar ini juga turut menjadi printis kepada penglibatan mahasiswa dalam menghasilkan penyelidikan yang dapat diterbitkan ke peringkat yang lebih tinggi. Akhir kata semoga seminar ini akan tetap diteruskan pada masa akan datang untuk melahirkan graduan pascasiswazah yang inovatif dan proaktif.

Setinggi-tinggi penghargaan dan sekalung budi sekali lagi kepada AJK pelaksana dan Pusat Pengajian Pascasiswaza atas sumbangan kewangan yang diberikan. Tidak lupa juga buat mereka yang menjayakan seminar ini sama ada secara langsung atau tidak langsung.

Sekian, terima kasih “BERTEKAD CEMERLANG”

PROF MADYA DR BABA MUSTA

Dekan Sekolah Sains dan Teknologi Universiti Malaysia Sabah

Kata-Kata Aluan Pengerusi Jawatankuasa Pelaksana

Bismillahir Rahmanir Rahim Assalammualaikum Warahmatullahhi Wabarakatuh dan Salam sejahtera Syukur ke hadrat ilahi, maka dengan izin-Nya, Seminar Pascasiswazah Sekolah Sains dan

Teknologi berjaya dianjurkan pada tahun ini. Seminar Pascasiswazah Sekolah Sains dan Teknologi merupakan program tahunan yang betujuan untuk mendedahkan para pelajar Pascasiswazah membentang hasil penyelidikan mereka . Secara tidak langsung seminar ini diharapkan akan menjadi ruang kepada para pelajar untuk bertukar-tukar ilmu pengetahuan yang sedia ada.

Pada kesempatan ini setinggi penghargaan dan ribuan terima kasih kami ucapkan kepada Timbalan Naib Canselor (Akademik & Antarabangsa), Dekan Pusat Pengajian Pascasiswazah dan Dekan Sekolah Sains dan Teknologi atas kerjasama dan sokongan untuk kelancaran seminar ini.

Terima kasih juga kepada para pensyarah yang terlibat dalam menjayakan seminar ini di atas nasihat dan bimbingan yang diberikan. Akhirnya tidak lupa juga kepada Ahli Jawatankuasa Seminar Pascasiswaza yang merupakan nadi pengerak seminar atas usaha yang tungkus lumus seminar pada tahun ini. Semoga pada masa akan datang Seminar pascasiswazah akan lebih giat diadakan untuk mencapai matlamat, misi dan visi sekolah.

Sekian, Terima Kasih. “BERTEKAD CEMERLANG” “PENYELIDIKAN TUNJANG TRANSFORMASI PENYELIDIKAN UNIVERSITI”

DR. FAUZIAH SULAIMAN

Pengerusi Seminar Pascasiswazah Sekolah Sains dan Teknologi 2013 Universiti Malaysia Sabah

JAWATANKUASA PELAKSANA

Penasihat Prof.Madya Dr. Baba Musta Pengerusi Dr. Fauziah Sulaiman Setiausaha Dayang Nor Asyilla binti Abang Abdullah Fatimah Bt. Sudirman Bendahari Arvyie Abie Jamil AJK Sekretariat EB Johnson Gubod Syahriel Abdullah Flaviour Mark Markos Eleena Sepai Martin Nabella Mustapha Elnetthra Folly Eldy AJK Publisiti Kong Soon Kai Lee Shu Kim AJK Teknikal Rechard Lee Siti Hasnah Tanalol AJK Saintifik Allan Yat Chan Nyoung Fenny Angella Modi Brian Brandon Cheng Liang Ching AJK Jamuan Ellyza Syazzana Mohd Zainuddin Brian Gindana Florian Tan AJK Protokol Muhd. Nur Ismail Abdul Rahman Rasyidah Moneey

MAJLIS PERASMIAN SEMINAR PASCA SISWAZAH SST 2013

08 Julai 2013 (ISNIN) Bilik Mesyuarat Utama Sekolah Sains & Teknologi

8.00 pagi Ketibaan kakitangan akademik SST Pendaftaran peserta

8.30 pagi Ketibaan tetamu kehormat

8.45 pagi Ketibaan YBhg. Prof Madya Dr. Baba Musta, Dekan Sekolah Sains Dan Teknologi, Universiti Malaysia Sabah

9.00 pagi Bacaan Doa oleh Saudara Muhd. Nur Ismail Abdul Rahman Ucapan Alu-aluan oleh Pengerusi Seminar Pascasiswazah SST 2012

Dr. Fauziah Sulaiman

Ucapan Perasmian oleh Dekan Sekolah Sains Dan Teknologi, Universiti Malaysia Sabah

YBhg. Prof. Madya Dr. Baba Musta

9.40 pagi Penyampaian Cenderahati

9.45 pagi Jamuan

TENTATIF PROGRAM

HARI PERTAMA 08 JULAI 2013 (ISNIN)

0800 – 0830 Pendaftaran 0830 – 0945 Majlis Perasmian 0945 – 1000 Jamuan Ringan 1000 – 1200 Pembentangan

Tempat Sidang 1A: Geologi

(BMU)

Sidang 1B: Kimia Industri

(BME)

Sidang 1C: Bioteknologi

(BMA)

1200 – 1400 Makan Tengahari 1400 – 1700 Pembentangan

Tempat

Sidang 2A: Matematik dengan Komputer Grafik/ (BMA)

Matematik dengan Ekonomi

Sidang 2B: Sains Sekitaran

(BME)

Sidang 2C: Fizik dengan Elektronik

(BMU)

Tamat Hari Pertama

HARI KEDUA 09 JULAI 2013 (SELASA)

1000 – 1220 Pembentangan Tempat Sidang 3A: Kimia Industri

(BME)

Sidang 3B: Bioteknologi

(BMA)

1220 – 1320 Makan Tengahari

Seminar Tamat

BMU = Bilik Mesyuarat Utama, SST; BMA = Bilik Mesyuarat Akademik, SST; BME = Bilik Mesyuarat Eksekutif, SST

JADUAL PEMBENTANGAN 08 & 09 JULAI 2013

HARI PERTAMA 08 JULAI 2013 (ISNIN)

0830 – 0900 Pendaftaran ( Bilik Mesyuarat Utama, SST ) 0900 – 0950

Majlis Perasmian ( Bilik Mesyuarat Utama, SST 0945 – 1000

Jamuan

PEMBENTANGAN

SIDANG 1A

SIDANG 1B

SIDANG 1C

GEOLOGI

KIMIA INDUSTRI

BIOTEKNOLOGI

Bilik Mesyuarat

Bilik Mesyuarat Eksekutif,

Bilik Mesyuarat Akademik,

SST 1000 – 1020

Utama,SST

SST

S1C-1 1020 – 1040

S1B-1

S1C-2 1040 – 10

S1B-2

S1C-3 10 – 1120

S1A-1

S1B-3

S1C-4 1120 – 1140

S1A-2

S1B-4

S1C-5 1140 - 1200

S1A-3

S1B-5

S1C-6 1200 - 1220

S1A-4

S1B-6

Makan Tengahari PEMBENTANGAN

SIDANG 2A

SIDANG 2B

SIDANG 2C

MATEMATIK DENGAN

FIZIK DGN ELEKTRONIK KOMPUTER GRAFIK/

SAINS SEKITARAN

Bilik Mesyuarat

Bilik Mesyuarat Utama,

MATEMATIK EKONOMI

SST Bilik Mesyuarat

Eksekutif,SST

Akademik, SST

S2C-1 1420 – 1440

S2A-1

S2B-1

S2C-2 1440 – 1500

S2A-2

S2B-2

S2C-3 1500 – 1520

S2A-3

S2B-3

S2C-4 1520 – 1540

S2A-4

S2B-4

S2C-5 1540 - 1600

S2A-5

S2B-5

S2A-6

S2B-6

1600 - 1620

S2A-7

Tamat Seminar Hari Pertama PEMBENTANGAN

SIDANG 3A

SIDANG 3B

KIMIA INDUSTRI

BIOTEKNOLOGI

Bilik Mesyuarat Eksekutif,

Bilik Mesyuarat

SST

Akademik, SST

1000 - 1020

S3C-1

S3B-1

S3C-2

S3B-2

S3C-3

S3B-3

10 - 1120

S3C-4

S3B-4

1120 - 1140

S3C-5

1140 - 1200

S3C-6

1120 - 1140

Makan Tengahari

Seminar Tamat

JADUAL PEMBENTANGAN 8 JULAI 2013 SIDANG 1A

8 Julai 2013 (Isnin) Sidang 1A: Geologi Tempat;Bilik Mesyuarat Utama

Pengerusi: Pn. Hjh Hennie Fitria W. Soehady E.

Masa Tajuk / Penulis Kod

1040 – 10 Depositional Environment of Coal Bearing Sequence at Pinangah Area Sabah

S1A-1

Daulip @ Dee Dee Lakkui & Felix Tongkul 10 – 1120

Water - Rock Interaction and Geochemistry of Groundwater in the Northern Labuan Island

S1A-2

Jaineh Lingi & Baba Musta 1120 – 1140

Prospek Air Bawah Tanah Dalam Unit Batuan Terpilih Dengan Menggunakan Abem Terrameter SAS 4000 di Sabah

S1A-3

Mohd Sazaly Basarian, Sanudin Hj Tahir & Sahat Sadikun 1140 – 1200

S1A-4 M uhd Nur Ismail Abdul Rahman

1200 – 1220 Makan Tengahari

JADUAL PEMBENTANGAN 8 JULAI 2013 SIDANG 1B

8 Julai 2013 (Isnin) Sidang 1B: Kimia Industri Tempat: Bilik Mesyuarat Eksekutif

Pengerusi: Dr. Moh Pak Yan

Masa Tajuk / Penulis Kod

1000 – 1020 Synthesis of Zeolite a Using Kaolinitic Clay from Bongawan Sabah

S1B-1

Johnson, E B. 1 , Arshad S. E & J. Asik 1020 – 1040

Electro-Properties Study of Nanocellulose Fiber Synthesis from Brown Seaweed Sargassum sp. Reinforced with Modified CNT

S1B-2

Florinna Tan, Jahimin Asik & Rubia Idris 1040 – 10

Glucosinolates and Myrosinase Activity in Moringa Oleifera

S1B-3 Asheladevi Binti Ahmad

10 – 1120 Conductivity Study of Electrospun Pan Nanofiber Reinforced with Modified Mixture MWCNT-CNF for the Potential Application of Energy Storage

S1B-4

Bryan Gindana, Jahimin Asik & Rubia Bte Idris 1120 – 1140

Glucosinolate and Myrosinase Activity Profiling Under Different Conditions in Papaya (Carica papapa)

S1B-5

Annie Johanna bt Ahmad, Loumi @ Noumi Surugau 1140 – 1200

Removal of Adsorbable Organic Halides (AOX) from Water Treatment Plant Effluent Using Granular Activated Carbon (GAC)

S1B-6

Emmy Nurasykin Bt. Majid 1200 – 1220

Makan Tengahari

JADUAL PEMBENTANGAN 8 JULAI 2013 SIDANG 1C

8 Julai 2013 (Isnin) Sidang 1C: Bioteknologi Tempat: Bilik Mesyuarat Akademik

Pengerusi: Cik Hartinie Marbawi

Masa Tajuk / Penulis Kod

1000 - 1020 Screening for GSK-3 Inhibitor from Soil Actinomycetes of Sabah Rainforests

S1C-1

Fauze Mahmud, Lee Ping Chin, How Siew Eng & Jualang Azlan Gansau

1020 – 1040 Exploration of Potential Microbial Approaches in Controlling Ganoderma

S1C-2

Louisiana Lulu & Chong Khim Phin 1040 - 10

Evaluation on the Efficacy of Microbial Approaches in Controlling Ganoderma boninense and Their Effects to Soil Microbial Diversity

S1C-3

Arnnyitte Alexander & Chong Khim Phin 10 – 1120

Seawater Dependency of Marine Actinomycetes for Antioxidant and Antimocrobial Properties

S1C-4

Muhammad Aizuddin bin Abdullah Bukhari & Wong Nyet Kui 1120 – 1140

Biochemical Analysis on the Metabolites from Oil Palm Roots Related to Ganoderma boninense Pathogenesis

S1C-5

Rozlianah Fitri Said, Chong Khim Phin & Jualang Azlan Gansau 1140 – 1200

The Assessment of Antimicrobial Activity from Cynodon dactylon (L.) pers. (Bermuda Grass) Against Some Common Foodborne, Skin Disease and Plant Pathogens

S1C-6

Syahriel Bin Abdullah, Januarius Gobilik & Chong Khim Phin

1200 – 1220 Makan Tengahari

JADUAL PEMBENTANGAN 8 JULAI 2013 SIDANG 2A

8 Julai 2013 (Isnin) Sidang 2A: Matematik dengan Komputer Grafik Tempat: Bilik Mesyuarat Akademik

Pengerusi: Dr. Abdullah Bade

Masa Tajuk / Penulis Kod

1400 – 1420 Augmented Reality Presentations on Architectural Students Visual Perception of Floor Plans Visual Perception and User Experiences : Augmented Reality Architectural Education

S2A-1

Afdalila Abas

3d Breast Cancer’s Tumours Reconstruction from Mammograms

S2A-2

Ho Wei Yong & Abdullah Bade 1440 – 1500

Real Time Preplaced Markerless Square-roi (rpms) Recognition Technique by Combining enhanced Shi-tomasi nCanny Detector for Breast Cancer Augmentation

S2A-3

Rechard Lee

1500 – 1520 Scientific Visualization of Environment Inside Seaweed Dryer

S2A-4 Sharif Mohd. Razif Sharif Kayong

8 Julai 2013 (Isnin) Sidang 2A: Matematik dengan Ekonomi Tempat: Bilik Mesyuarat Akademik

Pengerusi: Prof. Madya Dr. Aini Janteng

1520 – 1540 Coefficient Inequalities for Classes of p-Valent Functions with Respect to Symmetric Points

S2A-5

Loh Part Leam & Aini Janteng 1540 – 1600 Investigating Technical and Scale Efficiencies of Secondary Schools

in Papar Through Data Envelopment Analysis

S2A-6

Sui Chin Tan, Chong Mun Ho & Vincent Pang 1620 – 1640

Number of Parameters Counting in a Model

S2A-7

Yap Sue Jinq, Zainodin Haji Jubok & Aini Janteng

TAMAT SIDANG 2A JADUAL PEMBENTANGAN 8 JULAI 2013 SIDANG 2B

8 Julai 2013 (Isnin) Sidang 2B: Sains Sekitaran Tempat: Bilik Mesyuarat Eksekutif

Pengerusi: Dr. Justin Sentian

Masa Tajuk / Penulis Kod

1400 – 1420 Sea Level Rise and Saltwater Intrusion in Small Islands of East Coast Sabah

S2B-1

Eleena Sepai Martin & Justin Sentian 1420 – 1440 The Impact of Land use and climatic change on erosion and sediment

transport by rivers: Case study in Segama Catchment, Eastern Sabah- Borneo.

S2B-2

K.V. Annammal, R.P.D Walsh , W.H. Blake & K.Bidin 1440 – 1500 Climate Scenarios for Malaysia Based on Precise Regional Climate

Model

S2B-3

Steven S.K. Kong & Justin Sentian 1500 – 1520 Pencirian Hujan Sub-kanopi di Hutan Hujan Tropika Tanah Pamah dan Hutan Kerangas

S2B-4

Maznah Mahali & Kawi Bidin

1520 – 1540 Physicochemical Properties of Oil Palm Mill Ash

S2B-5

Sohail Rafiq & Harry Chong Lye Hin 1540 – 1600 Basic Characterisation of Oil Palm Mesocarp Fibre as Adsorbent

S2B-6

Wong Ken Hong & Harry Chong Lye Hin

TAMAT SIDANG 2B

JADUAL PEMBENTANGAN 8 JULAI 2013 SIDANG 2C

8 Julai 2013 (Isnin) Sidang 2C: Fizik dan Elektronik Tempat: Bilik Mesyuarat Utama

Pengerusi: Dr. Afishah Alias

Masa Tajuk / Penulis Kod

1400 – 1420 The Capability of Integrated Problem-based Learning in Improving Students’ Level of Creative-crititcal Thinking

S2C-1

Elnetthra Folly Eldy & Fauziah Sulaiman 1420 – 1440

Fabrication of Doped Zinc Oxide Film for Homostructural ZnO P-N Junction

S2C-2

Farah Lyana Shain, Saafie Salleh & Afishah Alias 1440 – 1500

Hourly Global Solar Radiation Model for Kota Kinabalu, Sabah

S2C-3

Flaviour Mark Markos, Jedol Dayou 1500 – 1540

Characterization of ZnO Thin Films on Various Substrates by rf Sputtering Method

S2C-4

Lam Mui Li, Saafie Salleh & Afishah Alias

1540 – 1600 Viscosity Model for Predicting the Power Output from Ocean

Salinity and Temperature Energy Conversion System (OSTEC)

S2C-5

Lee Shu Kim, Jedol Dayou, Harry Chong Lye Hin & Ejria Saleh TAMAT SIDANG 2C

JADUAL PEMBENTANGAN 9 JULAI 2013 SIDANG 3A

9 Julai 2013 (Selasa) Sidang 3A: Kimia Industri Tempat: Bilik Mesyuarat Eksekutif

Pengerusi: Dr. Muhamad Shaheen Khan

Masa Tajuk / Penulis Kod

1000 – 1020 Synthesis and Characterisation of Nano CuO-based Catalyst for the Production of Biofuels

S3C-1

1 Arvyvie Abie Jamil , Jahimin Asik & Rubia Idris 1020 – 1040

Mechanical Study of Nanocellulose Synthesis from Empty Fruit Bunch (EFB) of Palm Oil Reinforced with Modified Carbon Nanotubes (CNT).

S3C-2

Brian B.B, Jahimin Asik & Rubia Idris 1040 – 10

Development of K-based Geopolymer Ceramic from Local Kaolin Clay and Its Crystal Phase Evolution Based on Sintering

S3C-3

Ellyza Syazzana Binti Mohd Zainuddin, Sazmal E. Arshad, Baba Musta

10 – 1120 Effects of Water Quality and Sediment Nutrient on the Seaweed Growth and Its Chemical Composition

S3C-4

Fenny Angella Modi, Suhaimi Md Yasir & Noumie Surugau

1120 – 1140 Preparation and Characterization of Waste Tyre-based Activated Carbon by Microwave-induced Potassium Hydroxide Activation.

S3C-5

Masnah Binti Massuann, Collin Glen Joseph & Jidon Adrian Janaun 1140 – 1200

Geochemical Partitioning of Heavy Metals (Cu and Zn) in the Acid Mine Drainage- impacted Sediments of Mamut River, Sabah

S3C-6

Morius Bantas, Stella Ho Yen Ling & Marcus Jopony

1200 – 1220 Makan Tengahari

JADUAL PEMBENTANGAN 9 JULAI 2013 SIDANG 3B

9 Julai 2013 (Selasa) Sidang 3B: Bioteknologi Tempat: Bilik Mesyuarat Akademik

Pengerusi: Cik Hartinie Marbawi

Masa Tajuk / Penulis Kod

1000 – 1020 Possible utilization of microbes from virgin forest soil diversity to control erwinia spp. of papaya dieback disease

S3B-1

Chai Wan Ting, Jualang Azlan Gansau & Chong Khim Phin

1020 – 1040 Screening of GSK-3 Inhibitors from Soil Microfungi Isolated from the Rainforest of Sabah, Malaysia.

S3B-2

Dg. Nur Azierah Fachyuni Abdul Aziz, Lee Ping Chin, How Siew Eng & Jualang Azlan Gansau

1040 – 10 The Effectiveness of Selected Phenolics Combination Against Ganoderma sp . and Resistance

S3B-3

Jee Wei Ren & Chong Khim Phin 10 – 1120

Exploration of Microbial Diversity from Sabah Forests Soil to Control Ganoderma spp. of Oil Palm

S3B-4

Lim, P. H., Chong, K. P. & Jualang, A. G.

1120 – 1140 Makan Tengahari

PANEL PENILAI SEMINAR PASCASISWAZAH SST 2013 PROGRAM

PANEL PENILAI

Pn. Hennie Fitria Wulandary Sohaedy Erfan (Ketua Program)

Prof. Dr. Felix Tongkul Prof. Dr. Shariff A.K. Omang

GEOLOGI

Prof. Dr. Sanudin Haji Tahir Prof .Madya Dr Baba Musta Dr. Ismail Abd. Rahim Pn. Hazerina Pungut Dr. Moh Pak Yan (Ketua Program) Prof. Dr. Marcus Japony Prof. Madya Dr. Suhaimi Md. Yassir Dr. Noumie @Loumie Surugau

KIMIA INDUSTRI

Dr. Sazmal Effendi Arshad Dr. Collin G. Joseph Dr. Jahimin Asik Cik Rubia Idris Dr. Justin Sentian (Ketua Program) Prof. Datuk Dr. Mohd Harun Abdullah Prof. Madya Dr. Kawi Bidin Prof. Madya Dr. Piakong Mohd. Tuah Dr. Harry Chong Lye Hin

SAINS SEKITARAN

Dr. Bonaventure Vun Leong Wan Dr. Mahyar Sakari Dr. Muhammad Shaheen Khan Cik Kamsia Budin Cik Siti Aishah Mohd. Ali Cik Hartinie Marbawi (Ketua Program) Prof .Madya Dr. Jualang Azlan Gansau

BIOTEKNOLOGI

Prof .Madya Dr. Lee Ping Chin Prof. Madya Dr. Zaleha Abd Aziz Dr. Ivy Wong Nyet Kui

Dr. Chong Khim Phin Pn. Roslina Jawan Prof. Madya Dr. Aini Janteng (Ketua Program Matematik

Ekonomi) Dr. Abdullah Bade (Ketua Program Matematik Komputer

Grafik) Prof. Dr. Zainodin Hj. Jubok Prof Madya Dr. Ho Chong Mun Prof. Madya Dr. Jumat Sulaiman

MATEMATIK

Pn. Asdalifah Talibe

Pn. Noraini Abdullah Pn. Chin Su Na Cik Khadizah Ghazali Cik Norlita Ismail Pn. Suriani Hassan En. Yong Enn Lun Dr. Afishah Alias (Ketua Program) Prof. Madya Dr. Jedol Dayou Prof. Madya Dr. Haider F. Abdul Amir

Prof. Madya Dr. Aaliya Rehman Khan Dr. Saafie Salleh

FIZIK DGN ELEKTRONIK

Dr. Fauziah Sulaiman Dr. Yonsul Kang En. Ag Sufiyan Abd Hamid Pn. Fouziah Md. Yassin Pn. Rubena Yusoff Pn. Saturi Baco

SENARAI ABSTRAK

S1A-1

DESPOSITIONAL ENVIRONMENT OF COAL BEARING SEQUENCE AT PINANGAH AREA SABAH

Daulip @ Dee Dee L. Lakkui 1 Felix Tongkul 2

1 Jabatan Mineral dan Geosains Malaysia, Sabah Jalan Penampang, Beg Berkunci 2042, 88999 Kota Kinabalu, Sabah, Malaysia

2 School of Science and Technology, Universiti Malaysia Sabah 88400 Kota Kinabalu, Sabah, Malaysia

daulip@jmg.gov.my; ftongkul@ums.edu.my

ABSTRACT. Coal seam development is to a large extent controlled by depositional environment. Various depositional environments provide different rates of sedimentation which directly affects the nature and extend of coal deposits. A good understanding of the depositional environment of a coal bearing sequence can help predict the distribution and geometry of coal beds within a sequence. A sedimentological study conducted on a coal bearing sequence of the Tanjong Formation in Susui Block in the Pinangah area, Sabah has identified that the area was deposited in a mangrove and estuarine environment based on the presence of cross-beddings, fossils and coal seams with high sulphur content (ave. 0.98%). ______________________________________________________________________________

S1A-2

WATER - ROCK INTERACTION AND GEOCHEMISTRY OF GROUNDWATER IN THE NORTHERN LABUAN ISLAND

1 Jaineh Lingi 2 & Baba Musta

1 Jabatan Mineral dan Geosains Sabah Beg Berkunci 2042, 88999 Kota Kinabalu, Sabah

2 Sekolah Sains dan Teknologi, Universiti Malaysia Sabah 88400 Kota Kinabalu, Sabah, Malaysia

ABSTRACT. The study area situated at Northern Labuan Island. Geology of Northern Labuan Island comprises of Belait Formation, Temburong Formation, Setap Shale and quaternary alluvium. Belait Formation is the most significant rocks in term of groundwater availability. It's consisting of thick sandstone alternating with shale, conglomerate and lignite (coal seam). The purposed of this study is particularly to obtain information of the groundwater geochemistry for future development planning. This study aimed to evaluate and infer hydrogeochemical ABSTRACT. The study area situated at Northern Labuan Island. Geology of Northern Labuan Island comprises of Belait Formation, Temburong Formation, Setap Shale and quaternary alluvium. Belait Formation is the most significant rocks in term of groundwater availability. It's consisting of thick sandstone alternating with shale, conglomerate and lignite (coal seam). The purposed of this study is particularly to obtain information of the groundwater geochemistry for future development planning. This study aimed to evaluate and infer hydrogeochemical

be identified using X-Ray Diffraction (XRD) while organic composition of the coal samples will be determined with Proximate and Ultimate Analysis. Measurement of the physical properties of water will be carried out in site using portable Multiparameter Quality Meter. The result of the physical and chemical analysis will be analysed and presented in various methods using Multivariate Statistical Applications (MSAs), Geochemical Modelling (PHREEQ) and Piper Diagram. _____________________________________________________________________________

S1A-3

PROSPEK AIR BAWAH TANAH DALAM UNIT BATUAN TERPILIH DENGAN MENGGUNAKAN ABEM TERRAMETER SAS 4000 DI SABAH

Mohd Sazaly Basarian, Sanudin Hj Tahir & Sahat Sadikun

Sekolah Sains dan Teknologi, Universiti Malaysia Sabah 88400, Kota Kinabalu, Sabah, Malaysia

ABSTRAK. Secara keseluruhan negeri Sabah dibina oleh lima jujukan batuan utama iaitu batuan ofiolit yang mewakili kerak lautan, Formasi Crocker yang mewakili jujukan Paleogene, Formasi Sandakan yang mewakili jujukan Neogene, batuan volkanik Pleistocene seperti yang terdapat di daerah Tawau dan deposit alluvium seperti yang terdapat di Pulau Banggi. Prospek atau kajian potensi air bawah tanah dijalankan untuk mewakili kelima-lima jujukan ini adalah menggunakan peralatan dan kaedah geofizik. Kajian ini dijalankan menggunakan Abem Terrameter SAS 4000 yang menggunakan prinsip kerintangan elektrik untuk mengenalpasti sumber air bawah tanah berdasarkan nilai rintangan air di dalam jasad sesuatu batuan. Alat ini menggunakan arus elektrik secara terkawal yang dibekalkan oleh bateri 12 volt untuk melalui sesuatu bahan samada batuan atau tanah. Nilai rintangan arus elektrik yang melalui sesuatu bahan adalah dalam unit ohm/m yang tersendiri. Nilai rintangan ini boleh digunakan untuk meramal dan menentukan potensi air bawah tanah di kawasan kajian. Tafsiran data kuantitatif dalam bentuk keratan-pseudo dengan nilai rintangan tertentu akan memberi panduan terhadap kawasan kajian samada berpotensi untuk air bawah tanah supaya dapat dibangunkan pada masa hadapan. Dengan keputusan yang dicerap di kawasan-kawasan ini, nilai kerintangan untuk air bawah tanah boleh diperolehi dan dapat digunakan sebagai panduan untuk mencari lokasi akuifer di Sabah secara umum.

KATA KUNCI: Abem Terrameter SAS 4000, kerintangan, air bawah tanah, akuifer _____________________________________________________________________________

S1A-4

Muhd Nur Ismail Abdul Rahman

S1B-1

SYNTHESIS OF ZEOLITE A USING KAOLINITIC CLAY FROM BONGAWAN SABAH

1 2 Johnson, E B. G 3 , Arshad S. E , J. Asik 123 School of Science and Technology, University Malaysia Sabah, 88400, Sabah, Malaysia

ABSTRACT. There are abundant source of kaolin clay in Sabah. In this st

B S ”N ”E to synthesis zeolite A. The raw kaolin clay was treated using sodium hexametaphosphate and

calcined (800 o

C) to form metakaolin. The metakaolin was then used in the hydrothermal synthesis of zeolite A. Optimum crystallization time (8 hours) is required to synthesis zeolite A. Prolongation of the crystallization time lead to sodalite as impurities. KEYWORDS: Zeolite A, kaolin, hydrothermal and crystallization.

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ELECTRO-PROPERTIES STUDY OF NANOCELLULOSE FIBER SYNTHESIS FROM BROWN SEAWEED SAGASSUM SP. REINFORCED WITH MODIFIED CNT

1 1 Florinna Tan 1 , Jahimin Asik & Rubia Idris

1 School of Science and Technology, Universiti Malaysia Sabah 88400 Kota Kinabalu, Sabah, Malaysia

ABSTRACT. Sargassum sp. is a brown seaweed family. Seaweed sample was collect from Costal area of Semporna, Sabah. This study attempted to synthesis nanocellulose fiber from brown seaweed Sargassum sp. reinforced with modifying CNT by using electrospinning techniques. There are three stages of extraction of nanocellulose from brown seaweed Sargassum sp.: i) delignification, ii) bleaching and iii) acid hydrolysis. In this study, there will be two parameters will be examine, concentration of acid (5 to 50wt %) and ratio of modified CNT to nanocellulose (5-10wt%). The nanocellulose fiber will be undergoing three stages of heat treatment: stabilization, carbonization and graphitization. Then the nanocellulose fiber will be characterized using EIA, TEM, SEM and XRD to determine the physio-chemical properties of the nanofiber. The outcomes of this study is to synthesis nanocellulose fiber form a renewable feedstock with high conductivity, high thermal stability with small fiber diameter for the potential application of electronic device.

S1B-3

GLUCOSINOLATES AND MYROSINASE ACTIVITY IN MORINGA OLEIFERA

Asheladevi Binti Ahmad 1

1 School of Science and Technology, Universiti Malaysia Sabah 88400 Kota Kinabalu, Sabah, Malaysia

ABSTRACT.

The work on synchronous monitoring of GLS hydrolysis products using CE has been reported, however, the reaction occurred in vial and not inside the capillary. Also, the method was tested on model GLS compounds and it was not applied on real samples such as plant materials. In this research proposal, in-capillary myrosinase-catalyzed hydrolysis of GLS will be developed to allow simultaneous monitoring of myrosinase activity and types of hydrolysis products. After initially developing the method using model GLS and myrosinase, the method will be validated on Moringa oleifera leaves. M. oleifera leaf is widely reported to possess anticancer properties due to its GLS contents. This work will be the first on the analysis of GLS in M. oleifera using CE.

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CONDUCTIVITY STUDY OF ELECTROSPUN PAN NANOFIBER REINFORCED WITH MODIFIED MIXTURE MWCNT-CNF FOR THE POTENTIAL APPLICATION OF ENERGY STORAGE DEVICE

1 1 Bryan Gindana 1 , Jahimin Asik , Rubia Bte Idris

1 Sekolah Sains dan Teknologi, Universiti Malaysia Sabah 88999, Kota Kinabalu, Sabah, Malaysia

ABSTRACT. T v facing critical environmental issues and dwindling resources. To suffice the hunger of energy we need to produce, transport and store energy in new and more efficient ways. The main interest of this research is to synthesize electrospun PAN nanofiber reinforced with modified mixture of MWCNT-CNF using electrospinning technique and characterizing the properties of the nanofiber. Modified carbon nanomaterials are done by functionalizing it with the carbonyl acid group into the opening defects of nanomaterials, FTIR will be used to examine the presence of functional group. Chemically functionalised nanomaterials are disperse into the polyacrylonitrile (PAN) solution in several wt% ratios i) PAN to nanomaterials are 6 to 11 wt%, ii) mixture of CNT to CNF are 8:2, 2:8,10:0 & 0:10 wt%. Then the polymer solution mixture will undergoes electrospinning with varied parameters i) working distance 14, 15.5 & 16 cm, ii) applied voltage

12.0, 12.5 & 13.5 kV. Electrospun nanofiber will undergoes heat treatment stages; stabilization, carbonization and graphitization. The electrospun PAN nanofiber will be characterized using TGA-DSC to study the thermal behaviour, TEM and SEM to study the morphological of sample and EIA to study the conductivity properties. It is expected that the electrospun PAN nanofibers 12.0, 12.5 & 13.5 kV. Electrospun nanofiber will undergoes heat treatment stages; stabilization, carbonization and graphitization. The electrospun PAN nanofiber will be characterized using TGA-DSC to study the thermal behaviour, TEM and SEM to study the morphological of sample and EIA to study the conductivity properties. It is expected that the electrospun PAN nanofibers

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GLUCOSINOLATE AND MYROSINASE ACTIVITY PROFILING UNDER DIFFERENT CONDITIONS IN PAPAYA ( CARICA PAPAPA)

1 Annie Johanna bt Ahmad 1 & Loumi @ Noumi Surugau

1 Industrial Chemistry Programe , School of Science and Technology Universiti Malaysia Sabah

Email: anniejohanna23@gmail.com

ABSTRACT. Carica papaya is a tree-like herbaceous plant, a member of the small family Caricaceae and widely cultivated for its edible fruits. Parts of the plant are used in diets as a

fruit or vegetable; it is sometimes used as a therapeutic remedy for several of its medicinal properties. These health promoting effects are most likely due to the breakdown products of glucosinolates formed by the action myrosinase which catalyzes the hydrolysis of glucosinolate. Isothiocyanate, the most beneficial degradation product acting as insect repellents, bactericides, nematicides and putative anticarcinogenics in human. In order to find an optimal level of breakdown product and to increase their bioavailability, it is important to know the behavior of myrosinase and glucosinolate. Agricultural and food processing may affect the composition, content, activity and bioavailability of glucosinolate breakdown product, due to the cell rupture or glucosinolate and myrosinase degradation. The aim of this study is to investigate the effect of temperature, pH, Ascorbic acid, ferric and ferrous solution on myrosinase activity in papaya (seed,fruit and leaf). The study was conducted in Carica Papaya variety Eksotika. The enzyme myrosinase from papaya was treated with different conditions (temperature,pH,ascorbic acid, ferric and ferrous solution) with the addition of sinigrin. By using HPLC ,myrosinase activity was

−1 expressed as amount of transformed sinigrin in mmol min −1 g DW.

KEYWORDS: Carica Papaya, glucosinolate, myrosinase, HPLC

S1B –6

REMOVAL OF ADSORBABLE ORGANIC HALIDES (AOX) FROM WATER TREATMENT PLANT EFFLUENT USING GRANULAR ACTIVATED CARBON (GAC)

Emmy Nurasykin Bt. Majid 1

1 School of Science and Technology, Universiti Malaysia Sabah 88400 Kota Kinabalu, Sabah, Malaysia

ABSTRACT. Halogenated organic compounds have been increasingly produced from industrial factory nowadays. Some man made halogenated compounds are carcinogenic, toxic and mutagenic, and it may have harmful effects on human health and environmental. Adsorbable organic halides (AOX) also found in sewage, lake water and river water. Sewage will be treating in wastewater treatment plant and discharged into river and it may flow into water supply system. Since water treatment plant uses a large consumption of chlorine, therefore it is important to monitor AOX level and its removal in water treatment plant effluent.

S1C-1

SCREENING FOR GSK-3 INHIBITOR FROM SOIL ACTINOMYCETES OF SABAH RAINFORESTS

Fauze Mahmud, Lee Ping Chin, How Siew Eng & Jualang Azlan Gansau 1

1 School of Science and Technology, Universiti Malaysia Sabah 88999, Kota Kinabalu, Sabah, Malaysia

ABSTRACT. Besides its reputation as a mega biodiversity spot, Sabah rainforests also hold a tremendous potential in the pharmaceutical industry. In this study, a total of 664 actinomycetes strains were isolated and the activity of 445 strains against mammalian GSK- β was tested using in vivo yeast based screening system. GSK- β v v various cell processes and also regarded as a causal factor of cancer and diabetes. Yeast homolog gsk-3 gene was knockout to develop a temperature sensitive strain that is unable to grow at 37 o

C. However, the insertion and expression of mammalian gsk- β

yeast original phenotype. Screening plates were grown at 28 o C and 37

C and the presence of GSK- o β z observed at 37

C. A total of 10 potential strains were identified. H11809, FH025 and FA013 were selected to be partially fractionated using Liquid-Liquid Extraction (LLE). Chloroform layer of H11809 was found active in both in vivo and in vitro tests. Further fractionation of H11809 (chloroform layer) was carried out using column chromatography to obtained two active fractions (F4 and F8) that has partial activity on GSK-

β. T T L C TLC H P mance Liquid Chromatography (HPLC) to evaluate its purity. F8 was chosen to be subjected into Gas

Chromatography Mass Spectrometer (GCMS) for compound identification. A total of 11 known compounds were identified using GCMS. Diketopiperazine and phthalate derivatives were perceived as the compounds that exerts anti-GSK- β. I v GSK-3 kinase assay will be applied to confirm the activities.

S1C-2

EXPLORATION OF POTENTIAL MICROBIAL APPROACHES IN CONTROLLING GANODERMA

1 Louisiana Lulu 1 & Chong Khim Phin

1 Sekolah Sains dan Teknologi, Universiti Malaysia Sabah 88999, Kota Kinabalu, Sabah, Malaysia

ABSTRACT . Basal Stem Rot (BSR) is one of the most devastating diseases of oil palm (Elaeis guineensis Jacq.) in South East Asia, and Ganoderma boninense is the main causal agents for this disease. Economic losses will considered as significant when 10% of the stand has been infected and even worst, this fungus can kill more than 80% of stands by the time they are halfway through their economic life. Significant economic losses may be due to the zero yields from dead palm and reduction of weight and number of fruit bunches in living BSR diseased palms. Many control measures has been practiced including cultural, chemical, biological control and development of host resistance palms against G. boninense, however, until to date, there is no single method tested in vitro and on field has been proven to be effective against BSR. Therefore, the aims of this study are to evaluate potential microbes as biocontrol agent against

G. boninense and to understand the interaction and mode of inhibition caused by the potential microbes against Ganoderma. To reach these objectives, several types of microbial combinations will be tested on seedlings and mature oil palm with different disease severity. Assessment on the potential of these microbes in suppression of Ganoderma colonisation will be measured using several indexes such as ergosterol content, MDSS (Modified Disease Severity Scale) and viability on GSM (Ganoderma Selective Media). Antagonistic activities of these microbes against G. boninense in – vitro will be evaluated using PIRG (Percentage of Inhibition Radial Growth) in Dual Culture Assay Test.

KEYWORDS: Ganoderma boninense, Biocontrol, Ergosterol, Ganoderma Selective Media, in vitro, antagonistic, Dual Culture Assay Test

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S1C-3

EVALUATION ON THE EFFICACY OF MICROBIAL APPROACHES IN CONTROLLING GANODERMA BONINENSE AND THEIR EFFECTS TO SOIL MICROBIAL DIVERSITY

1 Arnnyitte Alexander 1 & Chong Khim Phin

1 Sustainable Palm Oil Research (SPOR) School of Science and Technology, Universiti Malaysia Sabah

88400 Kota Kinabalu, Sabah, Malaysia

ABSTRACT. Basal Stem Rot (BSR) is the most destructive disease of oil palm (Elaeis guineensis Jacq.) which caused by bracket fungus; Ganoderma boninense. With no remedy to date, this disease has jeopardized the industry of oil palm critically. Several approaches including cultural,

chemical, mechanical and biological measures have been reported in attempt to control this disease, but unfortunately, none has give satisfactory result. Therefore, a more reliable approach that could manage this disease, besides a continuous and sustainable oil palm production is worth to be further investigated. Introduction of microbes in disease management have been used for decades. An astute observation of low incidence of disease due to Ganoderma pathogen in natural ecosystem suggests that a healthy natural ecosystem can hinder the incidence of Ganoderma pathogen outbreak. In this respect, study on the potential of microbes in suppressing the growth of Ganoderma boninense and its effect to the soil microbial diversity were investigated. Three microbes-based products which are Living Soil Microbes (LSM), Agrinos (AGN) and Agriorganica (AO) were tested in this study. LSM contains multi-strain of Bacillus spp. and Trichoderma spp., whereas AGN consist of Bacillus spp., Pseudomonas spp. and Aspergillus sp. Meanwhile, AO comprises of 3 living food microbes which are Lactobacillus, Nattobacillus and Saccharomyces cerevisiae developed from Japanese fermentation and brewing technology. To examine the ability of the treatments in reducing BSR disease incidence, assessments in nursery and field trial were conducted. Ergosterol quantification was used to indicate the presence of Ganoderma infection. The results from both trials showed that LSM, AGN and AO were able to reduce the colonization of G. boninense based on the reduction of ergosterol content compared to untreated control. The effect of the application of microbial products to the soil microbial community was evaluated based on the isolation using Colony Forming Unit (CFU) and later identification using Biolog and molecular techniques. The numbers of CFU for bacteria and yeast after application of these microbes were

4 6 2 5 remain unchanged, which were varied between 10 to 10 cfu/g and 10 to 10 cfu/g of soil respectively. However, the number of CFU for fungi was increased up to 10 4 cfu/g of soil.

Identification based on Biolog technique shows that new species arose and overcome the predominated species after application of these microbes. The new identified species are Enterobacter spp., Microbacterium spp., Burkholderia spp., Yarrowia spp., Paecilomyces spp., Neosertoya spp. etc. Polymerase Chain Reaction (PCR) and sequence homology was conducted for further identification of those microbes isolated from oil palm plantation soil down to strain level. In vitro antagonistic assay of microbial treatments on Potato Dextrose Agar (PDA) showed that only LSM has the activity against G. boninense (Percentage Inhibition of Radial Growth, PIRG=70%). Potential bioactive component produced by LSM during this interaction which inhibiting the growth of G. boninense was further investigated via Reverse Phase- High Performance Liquid Chromatography (RP-HPLC) and Liquid Chromatography Mass Spectrometry (LCMS). KEYWORDS: microbial approach, Ganoderma boninense, microbial diversity, antagonist

S1C-4

SEAWATER DEPENDENCY OF MARINE ACTINOMYCETES FOR ANTIOXIDANT AND ANTIMOCROBIAL PROPERTIES

1 Muhammad Aizuddin bin Abdullah Bukhari 1 , Wong Nyet Kui

1 Biotechnology Programme, School of Science & Technology, Universiti Malaysia Sabah, 88400

Kota Kinabalu, Sabah, Malaysia. Emel: nkwong@ums.edu.my

ABSTRACT. This study was done to examine the seawater dependency of marine actinomycetes in the production of its bioactive secondary metabolites. A total of 100 marine actinomycetes strains were isolated from marine sponges collected within the conserved sea area of Sipadan Islands. All strains were subjected to NaCl tolerance assay to confirm that all strains are belong to marine origin. The fermentation process was done in mannitol-peptone broth with the presence and absence of seawater prior to the antimicrobial and DPPH assay. The data from DPPH assay showed that 22 strains have antioxidant properties (IC50 in the range of 56.3µg/ml to 99.1µg/ml) in the presence of seawater and 16 strains have antioxidant properties (IC50 in the range of 82.6µg/ml to 99.4µg/ml) in the absence of seawater. On the other hand, the presence of seawater has induced the production of antimicrobial compounds from 21 strains with inhibition zone ranging from 8mm to 19mm. In contrast, without seawater, only 12 strains were able to exhibit antimicrobial properties with inhibition zone ranging from 8mm to 11mm. The data from the assay showed that seawater indeed played an important role in the production of the antioxidant and antimicrobial compounds from marine actinomycetes. KEYWORDS: Antimicrobial, Antioxidant, Marine actinomycetes, Sipadan Island _____________________________________________________________________________

S1C-5

BIOCHEMICAL ANALYSIS ON THE METABOLITES FROM OIL PALM ROOTS RELATED TO GANODERMA BONINENSE PATHOGENESIS

1 1 Rozlianah Fitri Said 1 , Chong Khim Phin & Jualang Azlan Gansau

1 School of Science and Technology, Universiti Malaysia Sabah 88400 Kota Kinabalu, Malaysia

ABSTRACT.

B S R BSR S E A industry. The losses due to this disease were reported up to RM1.5 billion a year in Malaysia. To date there is no promising remedy or reliable detection technique for this disease is confidently reported. Therefore, this study aims to investigate metabolites which may contribute to partial resistant or susceptibility of oil palm to Ganoderma boninense. The investigation involved phytochemical study prior to identification and quantification of volatile and non-volatile compounds using different chromatography systems. Six month-old oil palm seedlings roots

were elicited with copper sulphate (CuSO 4 ) to investigate for the presence of their phytochemical constituents. Oil palm roots were extracted with six different solvents. Among the solvents were methanol, ethanol, acetone, ethyl acetate, chloroform and petroleum ether. The distribution of phytochemicals in oil palm roots extracted with the different solvents were assessed and compared. Meanwhile, a fieldwork study has been carried out to evaluate the level of partial resistant and susceptibility among different commercial oil palm progenies were elicited with copper sulphate (CuSO 4 ) to investigate for the presence of their phytochemical constituents. Oil palm roots were extracted with six different solvents. Among the solvents were methanol, ethanol, acetone, ethyl acetate, chloroform and petroleum ether. The distribution of phytochemicals in oil palm roots extracted with the different solvents were assessed and compared. Meanwhile, a fieldwork study has been carried out to evaluate the level of partial resistant and susceptibility among different commercial oil palm progenies

KEYWORDS: Basal stem rot, oil palm, phytochemical analysis, ergosterol

S1C-6

THE ASSESSMENT OF ANTIMICROBIAL ACTIVITY FROM Cynodon dactylon (L.) PERS.

(BERMUDA GRASS) AGAINST SOME COMMON FOODBORNE, SKIN DISEASE, AND PLANT PATHOGENS

1 2 Syahriel Bin Abdullah 1 , Januarius Gobilik , Chong Khim Phin

1 School of Science and Technology, Universiti Malaysia Sabah, 88400 Kota Kinabalu, Sabah, Malaysia.

2 School of Sustainable Agriculture, Universiti Malaysia Sabah, Sandakan Campus, Mile 10, Sg. Batang, 90000, Sandakan, Sabah, Malaysia.

ABSTRACT. Cynodon dactylon (L.) Pers. is a type of perennial grass that possesses great medicinal values. It is traditionally used as a rejuvenator, for wound healing and was believed to be able to cure many diseases and infections. In this study, the bioactive compounds and the antimicrobial activity of the plant extract from various solvents and extractions was investigated. The antimicrobial study was conducted against some selected foodborne, skin disease and plant pathogens such as Bacillus cereus, Bacillus subtilis, Escherichia coli, Klebsiella spp., Pseudomonas aeruginosa, Staphylococcus aureus, Streptococcus pyogenes, Streptococcus pneumonia, Aspergillus niger, and Ganoderma boninense via disc diffusion, micro-broth dilution, agar-diffusion, and Thin Layer Chromatography (TLC) bioassays. Crude extraction showed that ethanolic extraction produced the highest yield, up to 7.065%. Phytochemical studies confirmed C.dactylon contains many bioactive compounds such as alkaloids, anthraquinones, cardiac glycosides, terpenoids and steroids, saponins, phenolic compounds, flavonoids, tannins, carbohydrates and proteins. The plant crude extract was cleaned and optimized using Solid Phase Extraction (SPE) for further bioactive screening. The bioactive compounds from the plant SPE based extract were further profiled and identified using Reverse Phase-High Performance Liquid Chromatography (RP-HPLC) and Liquid Chromatography-Mass Spectrometry (LC-MS), Q- TOF. The antimicrobial study revealed broad spectrum of antimicrobial activity from the plant ethanol and ethyl acetate crude extracts against all of the bacterial pathogens (ethanol crude

extract MIC= ranging from 50 to 60mgmL -1 , varied among the tested pathogens; ethyl acetate extract MIC= ranging from 50 to 60mgmL -1 , varied among the tested pathogens; ethyl acetate

SPE-flush portion MIC= ranging from 15 to 30mgmL -1 , varied among the tested pathogens; ethyl acetate -flush portion MIC= ranging from 10 to 20mgmL -1 , varied among the tested

pathogens). A weak antimicrobial activity was observed from TLC-bioassay against A. niger while great antimicrobial activity from ethanol SPE-based extract was observed against G. boninense (MIC=10 mgmL -1 ). Mode of action study based on fluorometric bioassay quantification and leakage of 260nm-absorbing materials revealed the disruption of bacterial pathogens membrane cell by the plant bioactive compounds leads to the bacterial cell death in some tested pathogens. Luminometric assessment based on ATP quantification however shows that some bacterial pathogens were death due to other metabolic factors such as inhibition or interference with proteins synthesis, DNA replication, metabolic pathways etc. C. dactylon possesses great potential in combating both human and plant microbial pathogens and have bright future prospect as a supplement, for alternative medications, and as a biological control agent in combating crop pathogen.

KEYWORDS: Cynodon dactylon, antimicrobial activity, bioactive compounds, pathogens _____________________________________________________________________________

S2A-1

AUGMENTED REALITY PRESENTATIONS ON ARCHITECTURAL STUDENTS VISUAL PERCEPTION OF FLOOR PLANS. VISUAL PERCEPTION AND USER EXPERIENCES : AUGMENTED REALITY ARCHITECTURAL EDUCATION

Afdalila Abas 1

1 Sekolah Sains dan Teknologi, Universiti Malaysia Sabah

ABSTRACT. Throughout the academic training period as the conclusions of an educational research project which seeks to evaluate, and by the use of Augmented Reality (AR)