期刊名称：Pakistan Journal of Analytical & Environmental Chemistry
印刷版ISSN：1996-918X
电子版ISSN：2221-5255
出版年度：2012
卷号：13
期号：1
页码：16-21
语种：English
出版社：National Centre of Excellence in Analytical Chemsitry
摘要：Physico-chemical characteristics of two Bauhinia seed varieties (B. variegata and B. linnaei),were evaluated for commercial exploration. Physico-chemical characteristics of the oils for both varieties were demonstrated and mean values found to be refractive index (40 °C) 1.4589 and 1.4588,peroxide value 1.9 and 2.4 (meq O2 / kg of oil),iodine value 84.5 and 92.2 (g of I2/100g of oil),saponification number 191.3 and 195.5 (mg of KOH /g of oil),free fatty acids 0.6% and 0.9%,unsaponifiable matter 0.9% and 1.2% and color (1 in. cell),2.2-2.9R + 30.0-25.0Y,respectively. Linoleic 42.1 and 45.8 %,oleic 13.4 and 12.6%,stearic 17.5 and 18.8% and palmitic 22.1 and 16.8% were the main fatty acids in the crude seed oils. Minor amounts of palmitoleic,margaric,linolenic,arachidic,behenic,eicosapentaenoic and nervonic acid were also identified. The composition of defatted seed residue of B. variegata and B. linnaei were found as: protein 41.9% and 38.6%,oil 18.0%,and 17.4% ash 4.8% and 4.2%,moisture 6.7% and 6.3%,fiber 6.9% and 7.3% and total carbohydrate 28.4% and 33.8%,respectively. Proximate and fatty acid composition of both Bauhinia varieties were found to be almost similar. It was concluded that Bauhinia seed is a rich source of linoleic acid and could be explored for commercial uses..
