摘要
用石油醚萃取水冬瓜籽可得到约19.23%的毛油,萃取油之后的残渣再用80%乙醇抽提可得21.77%的具较强抗氧化作用的粗提物A。采用溶剂分级,醋酸铅(中性和碱性)沉淀两种方法对A进行精制。用烘箱贮存法测定了各种组分对猪油和豆油的抗氧活性。用化学试剂显色法初步鉴定水冬瓜籽中的抗氧有效成分为酚酸类化合物。
It was confirmed that Idesia Polycarpa Maxim seeds contain about 19.2% crude oil by extracting method with petroleum ether.After extracting the oil,the residue was continually extracted by 80% ethanal and from it about 21.77% crude extract(A) having stong antioxidative acitivity was obtained.(A) was refined by following methods:(1)Fractionation by different solvents;(2)Precipitation with neutral and basic lead acetate.The antiactivity of every fraction in lard or soybean oil was measured by the Oven-storage Method.It was suggested that the effective antioxidative components in I.P.M seeds are acidic phenolic compounds according to their colour-teste.
出处
《中国油脂》
CAS
CSCD
北大核心
1998年第6期49-51,共3页
China Oils and Fats
关键词
水冬瓜籽
抗氧化剂
精制
提取物
Idesia polycarpa maxim seeds
Antioxidizer
Refine
Antioxidative activity.