杜仲叶萃取物对精炼菜籽油抗氧化活性的研究  

Antioxidant Activities of the Du-zhong (Eucommia ulmoides Oliver) Leaves Extraction on Refined Rapeseed Oil

作　　者：郑国栋[1] 谢小俊 曾茹佚 黎冬明[1] 

机构地区：[1]江西农业大学江西省天然产物与功能食品重点实验室,南昌330045

出　　处：《中国粮油学报》2015年第4期76-79,共4页Journal of the Chinese Cereals and Oils Association

基　　金：863计划(2013BDA10B04)

摘　　要：研究杜仲叶萃取物对精炼菜籽油抗氧化的影响,采用乙醇-超声波提取法提取杜仲叶粗提物,分别用氯仿、正丁醇进行萃取,收集各萃取相。分离得到萃取物添加到精炼菜籽油中,在25℃下测定不同萃取物对油脂过氧化值和酸价的影响。结果表明,0.04%正丁醇萃取物有很好抗氧化作用,其抗氧化效果与VE、BHA相当,并且和VE组合有明显协同作用。正丁醇萃取物对精炼菜籽油的抗氧化效果最好,可作为天然抗氧化剂。To study antioxidant effects of Du -zhong （Eucommia ulmoides Oliver） leaves extraction on refined rapeseed oil. Methods： Using ethanol- ultrasonic extraction method, Du -zhong leaves were extracted, the extractions were isolated by chloroform, n -butanol alcohol, respectively. The isolated extractions were added in refined rapeseed oil, measured effects of extractions on the peroxide value （POV） and acid value （AV） at temperature of 25 ℃ . The nbutyl alcohol extraction has best antioxidant effect on refined rapeseed oil. 0.04% n -butyl alcohol extract had good antioxidant effect, the antioxidant effects is equal to VE and BHA, and had obvious synergy and VE combination. Conclusion ： These results showed that n - butyl alcohol extract of Du - zhong leaves has very good antioxidant effect, and can be used as natural antioxidants.

关 键 词：杜仲叶萃取物 精炼菜籽油 过氧化值 酸价 抗氧化 

分 类 号：TS221[轻工技术与工程—粮食、油脂及植物蛋白工程]