Institutional Repository | Satya Wacana Christian University: Karakterisasi dan Komposisi Kimia Minyak Biji Tumbuhan Kupu-Kupu (Bauhinia purpurea L.)

Karakterisasi dan Komposisi Kimia Minyak Biji Tumbuhan Kupu-Kupu (Bauhinia
purpurea L.)
(Characterization and Chemical Composition of (Bauhinia purpurea L.) Seed Oil)
Elizabeth Mega Kurnia Dewi1, Hartati Soetjipto1, A. Ign. Kristijanto1
1

Jurusan Kimia, Fakultas Sains dan Matematika, Universitas Kristen Satya Wacana, Salatiga
652010004@student.uksw.edu

ABSTRACT
The effect of extraction duration on the yield and of physic-chemistry properties of kachnar (Bauhinia
purpurea L.) seed oil has been carried out in Laboratory of Natural Product FSM SWCU, Salatiga. The
purposes of this study are: Firstly, to determine the effect of extraction duration on the yield and physicochemistry properties of B. purpurea seed oil. Secondly, to fractionate and identify the chemical composition of
of B. purpurea seed oil. The extraction has been done by soxhlete apparatus with duration from 4,5 to 7,5 hours
using hexane. Further on, the physico-chemistry properties of seed oil were characterized and its composition
identified by GCMS (Gas Chromatography-Mass Spectroscopy). Data were analyzed using Randomized
Completely Block Design (RBCD) with 3 treatments and 9 replications. As the treatment is the extraction
duration which are 4,5; 6,0 and 7,5 hours, respectively, while as the replication is the time of analysis. To test
the difference between the treatment-means, the Honestly Significant Different (HSD) at 5% level significance
were used. The results show that the peroxide value decreased in 7,5 hours of extracting. On the contrary, the
extraction duration has no effect on the yield, moisture content, acid value, and saponification value,

respectively. Neutral lipid fraction dominated 94,91% of total lipid of B. purpurea seed oil followed by
glycolipid and phospolipid.
Keyword:
B. purpurea, extraction duration, physical-chemistry properties, fractination, chemical
composition