共轭亚油酸的抗氧化活性及其抗氧化剂筛选  

Study on antioxidative activity of conjugated linoleic acid(CLA) and its potential antioxidant screening

作　　者：杨得坡[1] 李杰梅[1] 曾晓晖[1] 李珍[1] 王冬梅[1] 冀军峰 冀红斌 

机构地区：[1]中山大学药学院生药学与天然药物化学实验室,广州510080 [2]国家健康科技产业基地.中山尤利卡天然药物有限公司,中山528437

出　　处：《中国食品添加剂》2007年第2期136-139,共4页China Food Additives

摘　　要：目的:考查共轭亚油酸的抗氧化活性并筛选对其活性有保护作用的抗氧化剂。方法:采用连苯三酚体系考察共轭亚油酸及其乙酯的抗氧化性;运用气相色谱—质谱联用技术考察影响共轭亚油酸稳定性的因素,筛选保存共轭亚油酸适宜添加的抗氧化剂并考察合适的加入量。结果:共轭亚油酸及其乙酯在连苯三酚体系实验体系中均表现出良好的抗氧化作用,在筛选的抗氧化剂中,TBHQ、茶多酚、BHA、BHT效果理想。结论:共轭亚油酸具有明显的抗氧化性,建议使用抗氧化剂TBHQ与茶多酚保护其免于氧化分解。OBJECTIVE To study the antioxidative activity of Conjugated linoleic acid （CLA） and screen out the potential antioxidants. METHODS Pyrogallol autoxidation system was used to study the antioxidative activity of CLA and Conjugated linoleic acid ethyl ester （CLAEE）, The protective effects of antioxidants were evaluated with the CLA concentration by GC - MS, RESULTS Obvious antioxidative effect was observed for CLA and CLAEE in pyrogallol autoxidation system and TBHQ, TPP, BHA, and BHT showed satisfactory protective results for CLA products. CONCLU- SION CLA and CLAEE possess obvious antioxidative effect. TBHQ and Tea Polyphenol are good antioxidants for CLA products.

关 键 词：共轭亚油酸 共轭亚油酸乙酯 气相-质谱联用 抗氧化 抗氧化剂 

分 类 号：TS202.3[轻工技术与工程—食品科学]