摘要
采用不同的有机溶剂从小茴香（ＦｏｅｎｉｃｕｌｕｍｖｕｌｇａｒｅＭｉｌｅｒ）种子中提取抗氧化物质。以甲醇提取物（ＭＥＦＳ）具有较高的产率及较强的抗氧化活性。ＭＥＦＳ的抗氧化活性与ＢＨＡ相当。但与ＢＨＡ相比，ＭＥＦＳ具有较强的耐热性，在１８５℃处理２ｈ，ＭＥＦＳ仍有８７％的残留抗氧化活性，在４℃保存一年抗氧化活性无明显下降。ＭＥＦＳ与抗坏血酸，柠檬酸及半胱氨酸无协同效应。１．０％（Ｗ／Ｗ）的ＭＥＦＳ防止猪油酸败的效果与０．２％的ＢＨＡ相同。采用制备ＴＬＣ从小茴香的甲醇提取物中纯化出１２种组分，其中Ｒｆ值为０．４１及０．４９的两种组分表现出很强的抗氧化活性，优于ＢＨＡ。
Methanol extracts of fennel(Forenicum vuigare) seeds(MEFS)produced a higher yield of a component having stronger antioxidant activity then other organic solvents.The antioxidant activity of MEFS was equal to butylated hydroxyanisole(BHA).MEFS had batter thermal stability than BHA and showed an 57% inhibition of peroxidation of linoleic acid when heated at 185℃ for 2h.Only a slight decrease in antioxidative activity of MEFS occurred when the extract was stored at 4℃ for 1 year. Antioxidative activity of MEFS deceased with an increase of pH from 3 to 9.No synergistic effect of ascorbic acid,citric acid,cysteine was observed on the inhibitory effect of MEFS.MEFS also showed good inhibitory activity in lard oxidation when compared with BHA.The MEFS was separated into 12 fractions by TLC,in which the strongest antioxidant activity was found in subfractions with Rfs of 0.41 and 0.49 at 87% and 95% inhibition of peroxidation of linoleic acid.
出处
《中国粮油学报》
EI
CAS
CSCD
北大核心
1998年第3期37-40,共4页
Journal of the Chinese Cereals and Oils Association
基金
华南理工大学基金
