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Optimizing Vitamin E Purification from Unsaponiable Matter of Palm Fatty Acids Distillate by Low Temperature Solvent Crystallization
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作者 Kgs Ahmadi Sri Kumalaningsih +1 位作者 susinggsih wijana Imam Santoso 《Journal of Food Science and Engineering》 2012年第10期557-563,共7页
Palm fatty acid distillate (PFAD), a by-product of deodorization in palm oil refining, contains about 0.7%-1% vitamin E. The advantage of PFAD over other vitamin E sources is higher amount of tocotrienols than that ... Palm fatty acid distillate (PFAD), a by-product of deodorization in palm oil refining, contains about 0.7%-1% vitamin E. The advantage of PFAD over other vitamin E sources is higher amount of tocotrienols than that of tocopherols. Vitamin E purification of unsaponiable matter of PFAD was aimed to remove other impurities to obtain high vitamin E concentration, mainly tocotrienols. This research used low temperature solvent crystallization to purify vitamin E. To optimize response of vitamin concentration, a response surface method was applied with three factors, i.e., the ratio between solvent and unsaponifiable matter (A), crystallization temperature (B), and crystallization time (C). The relation of three factors was quadratic with equation Y = -128.54361 + 41.33904A - 0.87995B + 1.58941C + 0.00290AB - 0.044324AC + 0.00120BC - 3.33113A2 - 0.039535B2 - 0.02710C2. The optimum crystallization condition was obtained at ratio of solventto unsaponifiable matter of 6.04:1, crystallization temperature of-10.54 ℃, and crystallization time of 24.16 hours. Vitamin E enriched fraction from optimum crystallization conditions contained vitamin E of 20.13% (w/w). 展开更多
关键词 Low tempareture solvent crystallization palm fatty acid distillate vitamin E enriched fraction unsaponifiable matter.
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