目的 探討從喜樹種子油中純化亞麻酸的工藝。方法 硝酸銀絡(luò)合法。結(jié)果 最佳的硝酸銀絡(luò)合濃度為4mol/L,絡(luò)合溫度低于15℃,時(shí)間2h,得到的α-亞麻酸相對(duì)含量可達(dá)91.25%。結(jié)論 喜樹是富含有α-亞麻酸的植物新資源,其果實(shí)油脂中含有約45.8%的α-亞麻酸,利用本方法可較好地純化喜樹果實(shí)油脂中的α-亞麻酸。

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.

國家林業(yè)局引進(jìn)國際先進(jìn)林業(yè)技術(shù)項(xiàng)目(96-4,-10,11)