摘要
从杨梅（Ｍｙｒｉｃａｒｕｂｒａ）果核中首次分离得到了三个黄酮类化合物，经ＵＶ、ＩＲ、１￣ＨＮＭＲ、（１３）￣ＣＮＭＲ、ＥＩ－ＭＳ和ＦＡＢ－ＭＳ等波谱分析，鉴定为槲皮素（１）、杨梅素（２）和槲皮素－３－Ｏ－ａ－Ｄ－吡喃葡萄糖－（６→１）－Ｏ－ａ－Ｌ－吡喃鼠李糖苷（３）。用Ｒａｎｃｉｍａｔ法测定了它们的抗氧化性能，表明三个化合物对油脂都是优良的抗氧化剂，尤其是槲皮素和杨梅素对于猪油的抗氧化性比合成抗氧化剂ＢＨＴ（３，５－二叔丁基－４－羟基甲基苯）强得多。
Three flavoniods were isolated from the fruit kernel of Myrica rubra and identified as quercetin(1),myricetin(2)and quercetin-3-O-α-D-glucopyranosyl-(6→ 1 )-O-α-L-rhamnopyranoside(3),by meansof UV,IR,1￣H NMR,13￣C NMR , EI-MS and FAB-MS. Induction periods,as a measure of stability towardantioxidants, were determined in a Metrohm Rancimat.It has been shown that these compounds especiallyquercetin and myricetin are active antioxidants for lard and salad oil.
出处
《林产化学与工业》
EI
CAS
CSCD
北大核心
1995年第2期13-17,共5页
Chemistry and Industry of Forest Products
关键词
杨梅
果核
抗氧化剂
油脂
抗氧化成分
食品
Myrica rubra
Fruit kernel
Quercetin
Myricetin
Quercetin-3-O-α-D-glucopyranosyl-(6→1)-O-α-L-rhamnopyranoside
Antioxidant
