Kesimpulan Saran KESIMPULAN DAN SARAN

5. KESIMPULAN DAN SARAN

5.1 Kesimpulan

Metode ekstraksi xilan tongkol jagung telah dikembangkan menggunakan peralatan yang lebih sederhana dan mudah diperoleh seperti oven. Pemanasan tongkol jagung dalam oven 130-150 o C selama 0.5 jam baik dengan satu atau dua siklus pemanasan dapat meningkatkan kadar xilan dan XOS. Peningkatan suhu pemanasan oven dari 130 o C hingga 150 o C dan siklus pemanasan hingga dua kali tidak mempengaruhi kadar xilan tongkol jagung. XOS tongkol jagung berpotensi sebagai prebiotik karena mampu mendukung pertumbuhan L. plantarum kik dan B. longum ATCC 15707 dengan selisih pertumbuhan sebesar 1.2 hingga 1.7 unit log. XOS prebiotik tongkol jagung dapat diaplikasikan sebanyak 5 basis tepung terigu dalam pembuatan kukis prebiotik sebagai model pangan fungsional dengan tekstur yang lebih keras.

5.2 Saran

1. Metode ekstraksi xilan dalam oven dapat diteliti lebih lanjut pada suhu yang lebih tinggi dengan rasio air yang lebih tinggi. 2. Studi aplikasi XOS tongkol jagung dapat dilakukan pada berbagai produk pangan lain termasuk evaluasi sensori produk. DAFTAR PUSTAKA Aachary AA dan Prapulla SG. 2011. Xylooligosaccharides XOS as an emerging prebiotic : microbial synthesis, utilization, structural characterization, bioactive properties, and applications. Comprehensive Reviews in Food Science and Food Safety 10 : 1-14. Abreau P, Pereira A, Relva A. 2001. Characterisation of sugar fraction from Sarcocephalus latifolius stem bark extract. Journal of Carbohydrate Polymers 45 : 155 – 160. Akpinar O, Ozlem AK, Aysegul K, Ufuk B, Levent Y. 2007. Enzymatic production of xylooligosaccharide from cotton stalks. Journal of Agricultural and Food Chemistry 5 : 5544-5551. Alam M, Gomes I, Mohiuddin G, Hoq MM. 1994. Production and characterization of thermostable xylanase by Thermoscus auranticus grown on lignocelluloses. Journal of Enzyme Microbiology and Biotechnology 16 : 298-302. Alonso JL, Dominguez H, Garrote G, Parajo JC, Vasques MJ. 2003. Xylooligosaccharides : properties and production technology. Journal of Environmental, Agricultural and Food Chemistry 2 : 230- 232. Anggraini F. 2003. Kajian ekstraksi dan hidrolisis xilan dari tongkol jagung Zea mays L. [Skripsi]. Bogor: Fakultas Teknologi Pertanian, Institut Pertanian Bogor. Anonim. 2006. Xylo-Oligosaccharide sugarless chewing gums. http:www.tradenote.netkeywordgums [03 September 2011] [AOAC] Association of Official Analytical and Chemist. 1995. Official Methods of Analysis of Association of Official Analytical Chemist. Washington, DC: AOAC International. Apriyantono A, Fardiaz D, Puspitasari NL, Sedarnawati, Budiyanto S. 1989. Analisis Pangan. Bogor : Departemen Pendidikan dan Kebudayaan Direktorat Jenderal Pendidikan Tinggi Pusat Antar Universitas Pangan dan Gizi, Institut Pertanian Bogor ; IPB Press. Bailey MJ, Biely P, Poutanen K. 1992. Interlaboratory testing of methods for assay of xylanase activity. Journal of Biotechnology 23: 257-270. [BAM] Bacteriological Analytical Manual. 2001. Aerobic Plate Count. http:www.fda.gov.FoodScienceResearchLaboratoryMethodsBacterio lo-gicalAnalyticalManualBAMUCM063346. [02 Desember 2011]. [BPS] Badan Pusat Statistik. 2010. Produksi padi, jagung,dan kedelai angka tetap tahun 2009 dan angka ramalan tahun 2010 Berita Resmi Statistik 2010 ; 4307. http:www.bps.go.id [11 Juni 2011]. Casey. 1960. Pulp and paper chemistry and chemical Technology. Interscience Publisher, Inc. New York. Cesar T, Vladimir M. 1996. Purification dan properties of the xilanase produced by Thermomyces lanuginosus. Journal of Enzyme Microbiology and Biotechnology 19:289-298. Chidi SB, Godana B, Ncube I, Rensburg EJV, Cronshaw A and Abotsi EK. 2008. Production, purification and characterization of celullase-free xylanase from Aspergillus terreus UL 4209. African Journal Biotechnology 7: 3939-3948. Darliah Y. 2008. Produksi xilosa dari tongkol jagung Zea mays L. dengan hidrolisis asam klorida [Skripsi]. Fakultas Teknologi Pertanian, Institut Pertanian Bogor. Derosya V. 2010. Sakarifikasi empulur sagu Metroxylon sagu dengan konsorsium enzim amilolitik dan holoselulolitik untuk produksi bioetanol [Skripsi]. Fakultas Teknologi Pertanian, Institut Pertanian Bogor. Dominguez H, Alonso JL, Garrote G, Parajo JC and Vazquez MJ. 2003. Xylooligosaccharides: properties and production technologies. Journal of Environmental, Agricultural and Food Chemistry 2 :230-232. Dubois M. Guilles KA, Hamilton JK, Rebers PA, Smith. 1956. Colorimetric method for determination of sugars and related substances. Journal of Analytical Chemistry 28:350-356. Dwiari, SR. 2008. Pengujian potensi prebiotik ubi garut dan ubi jalar serta hasil olahannya Cookies dan sweet potato flakes [Tesis]. Sekolah Pascasarjana IPB. Bogor. [FAO] Food and Agricultural Organization. 1999. Technical Meeting on Prebiotics. http:www.fao.orgagagnagnsfilesPrebiotics_Tech_Meeting_ Report.pdf [22 November 2008]. FAOWHO Expert Consultation. 2002. Guidelines for The Evaluation of Probiotics in Food. London. http:www.fao.orgesESNfoodfoodandfood_probiocons_en.stm [07 Februari 2010] Fengel D dan Wegener. 1995. Wood : Chemistry, Ultrastructure, Reactions Terjemahan S. Hardjono. UGM Press, Yogyakarta. Fuller, 1997. Probiotics 2 : Applications and Practical Aspects. Chapman and Hall, London. Gamman PM dan Sherrington KB. 1992. Ilmu Pangan, Pengantar Ilmu Pangan, Nutrisi dan Mikrobiologi. Universitas Gajah Mada Press, Yogyakarta. Garrote G, Dominguez H, Parajo JC. 2007. Autohydrolysis of corncob : study of non isothermal operation for xylooligosaccharides production. Journal of Food Engineering 98: 1951-1957 Gasperz V. 1995. Teknik analisis dalam penelitian pencobaan. Edisi 1. Penerbit Tarsito. Bandung Giantine NM. 2007. Pemanfaatan pati ubi jalar putih Ipomoea batas L. dan pati garut Maranta arundinacea L. termodifikasi untuk produk bubur gel instan dan roti manis [Skripsi]. Fakultas Teknologi Pertanian. IPB, Bogor. Goyal M, Kalra KL, Sareen VK, Soni G. 2008. Xylanase production with xylan rich lignocellulosic wastes by a local soil isolate of Trichoderma viride. Brazilian Journal of Microbiology. Vol 39, No.3. Grootaert C, Delcour JA, Courtin, CM, Broekaert WF, Verstraete W and Wiele TV. 2007. Microbial metabolism and prebiotic potency activity of commercial prebiotics potency of arabinoxylan oligosaccharides in the Human intestine. Trends in Food Science and Technology 18 : 64-71. Gustiar H. 2009. Sifat fisiko-kimia dan indeks glikemik produk cookies berbahan baku pati garut Maranta arundinaceae L. termodifikasi [Skripsi]. Fakultas Teknologi Pertanian. Institut Pertanian Bogor. Bogor. Hoseney RC dan Rogers DE. 1994. Mechanism of sugar functionality in cookies : the science of cookie and cracker production Ed ke-8. Faridi H editor. American Association of Cereal Chemists, St.Paul, MN 8 : 203-225. Huebner J. Wehling RL dan Hutkins RW. 2007. Functional activity of commercial prebiotics . International Dairy Journal 17: 770-775. Jeffries TW, Yang VW, Davis MW. 1998. Comparative study of xylanases kinetics using dinitrosalisilic, arsenomolibdate and ion chromatographic assays. Applied Biochemistry and Biotechnology 70 : 257-265. Johnson LA. 1991. Corn : Production, Processing and Utilization. Di dalam Lorentz KJ and Kulp K ed. Handbook of Cereal Science and Technology. Marcell Dekker, Inc. New York. Kabel MA, Kortenoeven L, Schols HA and Voragen AGJ. 2002. In vitro fermentability of differently substituted xylooligosaccharides. Journal of Agricultural and Food Chemistry 50: 6205-6210. Koga dan Fujikawa S. 1985. Xylooligosaccharide in: oligosaccharides. Journal of Agricultural and Food Chemistry 3 : 130-143. Koswara J. 1991. Budidaya Jagung. Jurusan Budidaya Pertanian. Fakultas Pertanian. Institut Pertanian Bogor. Krafstoffe N. 2008. Ethanol from lignocellulose-overview. Berlin 6 Mei Royal Nedalco. http:www.fnrserver.decms35fileadminallgemeinpdfveranstaltungen NeueBiokraftstoffe3_Nedalco.pdf [8 Mei 2010] Kulkarni NA, Shendye dan Rao M. 1999. Molecular and biotechnology aspects of xylanase. Federation of European Microbiological Societies Microbiology Reviews 23:411-456. Kuruseng H dan Kuruseng MH. 2008. Pertumbuhan dan Produksi Berbagai Varietas Tanaman Jagung pada Dua Dosis Pupuk Urea. Jurnal Agrosistem 4 : 26-36. Gowa. Lee YJ. 2005. Oxidation of Sugarcane bagasse using a combination of hypochlorite and peroxide [Thesis]. The Department of Food Science. Louisiana State University. Lehninger. 1982. Dasar-dasar Biokimia. Jilid 1. Alih Bahasa Maggy T. Penerbit Erlangga. Jakarta. Liu C, Sun ZT, Du JH, Wang J. 2008. Response surface optimization of fermentation condition for producing xylanase by Aspergillus niger SL- 05. Journal of Industrial Microbiology and Biotechnology 35:703-711. Loo JV et al. 1999. Functional food properties of non-digestible oligosaccharide : a consensus report from The ENDO Project DGXII-AIRIICT94-1095 in Brit. Journal of Nutrition 8 : 121-132. Manning TS, Gibson GR. 2004. Prebiotics. Best Practice Research Clinical Gastroenterology 18 :287 – 298. Michelin M et al. 2009. Xylanase of wheat straw autohydrolysis liquor to xylanase and ß –xilosidase large-scale production in stirred tank bioreactor. XVII Simpósio Nacional de Bioprocessos. 2-5 Aug 2009. Miller GL. 1959. Use of dinitrosalicylic acid reagent for determination of reducing sugar. Analytical Chemistry 31: 426-428. Moura P, Barata R, Carvalheiro F, Girio F, Loureiro-Dias MC, Esteves MP. 2007. In vitro fermentation of xylo-oligosaccharides from corn cobs autohydrolysis by Bifidobacterium and Lactobacillus strains. Journal of Microbiology. 40 : 963-972. Moure A, Gullon P, Dominguez H, Parajo JC. 2006. Advances in the manufacture, purification and applications of xylooligosaccaharide as food additives and nutraceuticals. Journal of Process Biochemistry 41:1913-1923. Muawanah A. 2006. Produksi enzim xilanase termostabil dari Thermomyces lanuginosus IFO 150 pada substrat bagasse tebu [Tesis]. Sekolah Pascasarjana. Institut Pertanian Bogor, Bogor. Nwodo SC, Uzoma AO, Thompson NE, Victoria IO. 2008. Xylanase production of Aspergillus niger and Penicillium chrysogenum from ammonia pretreated cellulosic waste. Journal of Microbiology 3 : 246-253. Pangsri P. 2008. Production of xylooligosaccharides from corncobs autohydrolysis as prebiotic for food application. Applied and Environmental Microbiology 8 : 143-158. Parajo JC, Garrote G, Cruz JM, dan Dominguez H. 2004. Production of xylooligosaccharides by autohydrolysis of lignocellulosic materials. Trends in Food Science Technology 15: 115 –120. Ramos LP, Carpes ST, Silva FT and Ganter JLM. 1999. Comparison of the susceptibility of two hardwood species Mimosa scrabella Benth and Eucalyptus viminalis Labill, to steam explosion and enzymatic hydrolysis. http:www.scielo.brpdfbabtv43n2v43n2a09.pdf. [2 Agustus 2011] Reilly, PJ. 1991. Xylanase : structure and function. Proceeding of a symposium on trend in biotechnology of fermentation for fuels and chemicals. Plenum Press. New York. Richana N, Lestina P, Irawadi TT. 2004. Karakterisasi lignoselulosa dari limbah tanaman pangan dan pemanfaatannya untuk pertumbuhan bakteri RXA III-5 penghasil xilanase. Jurnal Penelitian Pertanian Tanaman Pangan 23: 171-176. Richana N. 2006. Rekayasa proses produksi dan karakterisasi xilanase dari isolat bakteri alkalofilik lokal dengan media xilan tongkol jagung [Disertasi]. Sekolah Pascasarjana, Institut Pertanian Bogor. Richana N, Irawadi TT, Anwar NM, Sailah I, Syamsu K dan Arkenan Y. 2007. Ekstraksi xilan dari tongkol jagung. Jurnal Penelitian Pascapanen Pertanian. 4 : 38-42. Badan Penelitian dan Pengembangan Pertanian. Balai Besar Penelitian dan Pengembangan Pascapanen Pertanian. Richana N, Prastowo B, Suharti TC, Hidayat T, Kurniawan F. 2010. Teknologi Proses sakarifikasi tandan kosong kelapa sawit TKKS dan fermentasi glukosa yang dihasilkan untuk produksi, bioetanol dengan rendemen lebih dari 15. Laporan Tengah Tahun [Unpublished]. Pusat Penelitian dan Pengembangan Badan Penelitian dan Pengembangan Pertanian Kementerian Pertanian. Rosephin F. 2010. Mutu dan potensi kukis sebagai pangan fungsional dengan substitusi tepung pisang modifikasi [Skripsi]. Fakultas Teknologi Pertanian, Institut Pertanian Bogor. Saha BC. 2003. Hemicellulose bioconversion. Journal of Industrial Microbiology and Biotechnology 30 : 279-291. Salminen S, Wright VA, Ouwehand A. 2004. Lactid acid bacteria microbiological and functional ascpects. Ed ke-3. New York Basel Marcel Dekker. Siagian RM. 1965. Pulp, kertas dan serat. Ilmu Pengetahuan dan Teknologi Industri. Bogor. Subamiyan S dan Prema P. 2002. Biotechnology of microbial xylanase : enzymology, molecular biology and application. Critical Reviews in Biotechnology 22 : 33-64. Sudarno. 2003. Alternatif paket teknologi budi daya jagung pada musim kering di Lampung Selatan. Buletin Teknik Pertanian. Vol. 8 Nomor 1. Sheerman PM. 2008. Potential roles and clinical utility of prebiotics in newborns, infants, and children. Journal of Pediatric. 155 : 61-70. Proceedings from a Global Prebiotic Summit Meeting ; New York City, 27-28 Juni 2008 Shin JH et al. 2009. Thermostable xylanase from Streptomyces thermocyaneoviolaceus for optimal production of xylooligosaccharides. Biotechnology and Bioprocess Engineering 14: 391-399. Shofiyanto EM. 2008. Hidrolisis tongkol jagung oleh bakteri selulotik untuk produksi bioetanol dalam kultur campuran [Skripsi]. Bogor : Fakultas Teknologi Pertanian. Institut Pertanian Bogor. Sjostrom E. 1995. Wood Chemistry. Jilid II. Diterjemahkan oleh Hardjono S. UGM Press, Yogyakarta. Sunna A dan Antranikian G. 1997. Xylanolytic enzyme from fungi and bacteria. Critical Reviews in Biotechnology 17: 39-67. Taylor TP, Fasina O, Bell LN. 2008. Physical properties and consumer liking of cookies prepared by replacing sucrose with tagatose. Journal of Food Science 7339: 145-151. Tokuda H, Sato K, Nakanishi K. 1997. Xylooligosaccharide production by Aspergillus oryzae 13 immobilized on a nonwoven fabric. Journal of Bioscience, Biotechnology and Biochemstry 62 : 801-803. Tsao GT, Ladisch M, Hsu TA, Dale B, Ladish C, Chou T. 1978. Fermentation substrates from cellulosic materials: production of fermentable sugars from cellulosic materials. In: Annual Report on Fermentation process.Volume 2. Academic Press. New York. Van Soest. 1963. Use of detergent in the analysis of fibrous feed II, a rapid method for the determination of fiber and lignin. Journal of Agricultural and Food Chemistry 46: 829 – 835. Vasquez MJ, Alonso JL, Dominguez H, Parajo JC. 2000. Xylooligosaccharides: manufacture and applications. Trends in Food Science and Technology. 11:387-393. Vasquez MJ, Alonso JL, Dominguez H, Parajo JC. 2006. Enhancing the potential oligosaccharides from corncob autohydrolysis as prebiotic food ingredients . Science Direct, Journal of Industrial Crops and Products. 24:152-159. Velkova ZI, Gochev VK, Kostov G, Atev A. 2007. Optimization of nutritive media composition for xylanase production by Aspergillus awamori. Bulgarian Journal of Agricultural Science. 13 : 651-656. Viikari L, Kantelinen A, Sundqvist J, Limko M. 2001. Xylanases in bleaching: from an idea to the Industry. Federation of European Microbiological Societies Microbiology Reviews 13: 335-350. Wang J, Sun B,Cao Y, Tian Y, Wang C. 2009. Enzymatic preparation of wheat bran xylooligosaccharides and their stability during pasteurization and autoclave sterilization at low pH. Journal of Carbohydrate Polymers 77 : 816 –821. Wells AL, Sauliner DMA, Gibson GR. 2008. Gastrointestinal microflora and interactions with gut mucosa. Di dalam : Gibson GR, Roberfroid MB, editor. Handbook of prebiotics. New York : CRC Press 13-38. Widyani IGA. 2002. Ekstraksi xilan dari tongkol jagung dan kulit ari kedelai [Skripsi]. Bogor : Fakultas Teknologi Pertanian. Institut Pertanian Bogor. Winarno FG. 1984. Kimia pangan dan gizi. Jakarta : Gramedia Pustaka Utama. Xiang Q, Lee YY, Petersson PO, and Torget RW. 2003. Heteregenous aspects of acid hydrolysis of α-cellulose. Applied Biochemistry and Biotechnology. 105 : 505-514. Ximenes E. 2010. The Role of hydrolase on degradation plant material. Brasil. Institute of Biology Science, University Brasilia. Yang R, Xu S, Wang Z, Yang W. 2005. Aqueous extraction of corncob xylan and production of xylooligosaccharides. Published by Elsevier Ltd. Swiss Society of Food Science and Technology 38 : 677-682. Yang CH, Yang SF, and Liu WH. 2007. Production of xylooligosaccharides from xylan by extracellular xylanases from Thermobifida fusca. Journal of Agricultural and Food Chemistry 55 : 3955 –3959. Yoshida S, Satoh T, Shomokawa S, Oku T, Ito T and Kusakabe S. 1994. Substrate specificity of Streptomyces B-xylanase toward glucoxylan. Journal of Bioscience, Biotechnology and Biochemistry 58 : 1041-1044. Yu EK, Tan LUL, Gahan MHK. 1987. Production of thermostable xylanase by thermophilic fungus Thermoascus auranticus. Journal of Enzyme Microbiology and Biotechnology 9: 16-24. Zhu Y, Kim TH, Lee YY, Chen R, Elander RT. 2005. Enzymatic production of xylooligosaccharides from corn stover and corn cobs treated with aqueous ammonia. 27th Symposium on Biotechnology for fuels and chemicals. Denver, May 2005. LAMPIRAN Lampiran 1. Analisis Proksimat Karakteristik Bahan Baku 1. Kadar Air AOAC, 1995 Cawan dikeringkan dalam oven terlebih dahulu hingga beratnya konstan a. Kemudian cawan tersebut beserta sampel ditimbang dengan berat sampel sekitar 2 gram b. Selanjutnya cawan beserta sampel dikeringkan dalam oven dengan suhu 102-105 °C selama 3 jam hingga mencapai berat yang konstan. Cawan yang sudah kering dimasukkan ke dalam desikator selama 15 menit dan ditimbang hingga beratnya konstan c. Persentase kadar air dapat dihitung dengan rumus: Keterangan: a = Berat cawan kosong gram b = Berat cawan + sampel sebelum dikeringkan gram c = Berat cawan + sampel setelah dikeringkan gram

2. Kadar Abu AOAC, 1995