油溶性茶多酚硒对油品的抗氧化性能研究  

On antioxidation activities of oil-soluble tea polyphenol selenium for oils and fats

作　　者：余鹰[1] 林燕[1] 陈雅红[1] 余其凤[1] 黄忠兴[1] 周文富[1] 

机构地区：[1]三明学院化学与生物工程系,福建三明365004

出　　处：《宝鸡文理学院学报（自然科学版）》2009年第1期26-29,44,共5页Journal of Baoji University of Arts and Sciences(Natural Science Edition)

基　　金：福建省质量工程创新基金资助闽教高[2007]-72-99;三明学院质量工程创新基金资助

摘　　要：目的研究油溶性茶多酚硒（oil-soluble tea polyphenol selenium also known as lipid-soluble tea polyphenols selenium，LTP-Se）在常温25℃和100℃不同温度条件下对蓖麻油、茶籽油、猪油的抗氧化作用。方法在常温25℃和100℃不同温度条件下，以LTP-Se作为抗氧化剂，采用空气自然氧化法考查对蓖麻油、茶籽油、猪油的抗氧化作用。结果添加LTP-Se浓度为80mg／kg时，表现出对蓖麻油、猪油、荼籽油抗氧化效果最佳。前期（1～2d）过氧化值（peroxide value，PCV）的测定结果为：BHT〈LTP〈LTP-Se；后期（3～4d）POV：LTP-Se〈LTP〈BHT，柠檬酸（CA）、抗坏血酸（AA）对LTP-Se抗油脂氧化有增效作用。结论LTP-Se对油品具有较好的持久抗氧化效果。Aim To investigate the effect of the oil-soluble tea polyphenol selenium also known as lipid- soluble tea polyphenols selenium （LTP-Se） on the antioxidation activity for castor oil, lard and tea seed oil under the condition of oxidation at 25 ℃ and 100 ℃. Methods The antioxidation effect of LTP-Se, acting as an antioxidant, on castor oil, lard and tea seed oil was analyzed which was tested at 25 ℃ and 100 ℃ with natural air oxidation method. Results The antioxidation of LTP-Se achieved the optimal effect at a concentration of 80 mg/kg. The determination results of the peroxide value over previous period （142 days） were as follows： LTP-Se〈LTP〈BHT; the subsequent （3-4 days） POV： LTP-Se〈LTP〈BHT. Citric acid and ascorbic acid had synergetic action on the anti-oxidative activity of LTP-Se. Conclusion LTP-Se has good lasting oxidation resistance effect to oils and fats.

关 键 词：油溶性茶多酚硒 抗氧化性 增效作用 

分 类 号：O627.51[理学—有机化学]