摘要
采用冷冻结晶法对以亚麻油为原料制备的α-亚麻酸乙酯进行了纯化,以α-亚麻酸乙酯含量为考察指标,利用单因素实验考察了冷冻温度和纯化时间对α-亚麻酸乙酯的纯化效果。结果表明冷冻结晶纯化的最佳温度和时间分别为-30℃和20 h。进一步采用2种不同的降温方法纯化α-亚麻酸乙酯,发现梯度降温可以提高α-亚麻酸乙酯的产率。
The α-ethyl linolenate prepared with linseed oil was purified by means of freezing crystallization, whose effects were investigated by single-factor experiments on freezing temperature and purification time based on the content of α-ethyl linolenate. The results showed the optimum freezing crystallization temperature and time were -30 ℃ and 20 h respectively. The gradient reduction of temperature for a-ethyl linolenate purification could increase the yield on the basis of further investigations on the two different ways for the realization of decreased temperature.
出处
《食品科技》
CAS
北大核心
2013年第10期194-197,共4页
Food Science and Technology
关键词
Α-亚麻酸乙酯
纯化
冷冻结晶
α-linolenate ethyl
purification
freezing crystallization
