目的 探讨从喜树种子油中纯化亚麻酸的工艺。方法 硝酸银络合法。结果 最佳的硝酸银络合浓度为4mol/L,络合温度低于15℃,时间2h,得到的α-亚麻酸相对含量可达91.25%。结论 喜树是富含有α-亚麻酸的植物新资源,其果实油脂中含有约45.8%的α-亚麻酸,利用本方法可较好地纯化喜树果实油脂中的α-亚麻酸。

Object To establish the process of purification for α-linolenic acid from the fruit oil of Camptotheca acuminata Decne.. Methods Complexometry by AgNO₃ was applied. Results The optimal conditions: the AgNO₃ concentration was 4mol/L, the complexometric temperature was lower than 15℃, and the complexometric time was 2h. The purity of α-linolenic acid was 91.25%. Conclusion The concentration of α-linolenic acid from the fruit oil of C. acuminata can reach to 45.8%, therefore it is a new abundant resource for α-linolenic acid. α-linolenic acid can be well purified in the fruit oil by this process.

国家林业局引进国际先进林业技术项目(96-4,-10,11)