芝麻素在芝麻种子亚细胞结构中的分布  

Distribution of sesamin in the subcellular structure of sesame seeds

作　　者：朱金蒙 陈业明[1] 孔祥珍[1] 华欲飞[1] ZHU Jinmeng;CHEN Yeming;KONG Xiangzhen;HUA Yufei(School of Food Science and Technology,Jiangnan University,Wuxi 214122,Jiangsu,China)

机构地区：[1]江南大学食品学院,江苏无锡214122

出　　处：《中国油脂》2021年第8期20-24,共5页China Oils and Fats

基　　金：中央高校基本科研业务费专项资金资助(JUSRP52025B)。

摘　　要：芝麻素等木脂素是芝麻种子中一种重要的天然抗氧化剂,具有多种生理活性功能。阐明芝麻素在芝麻种子亚细胞结构中的分布,对于芝麻深加工,尤其是芝麻素的提取和利用具有重要意义。芝麻素为脂溶性成分,故以芝麻脂质主要存在状态——油体作为主要研究对象。结果表明:芝麻中约95%的芝麻素和约95%的脂质分布在油体中,而其余部分则分布在内质网等膜结构中,显示了芝麻素和脂质之间有极规律的量化关系;碱洗对油体的芝麻素含量影响不大,而尿素则可一定程度溶出油体中的芝麻素;高速剪切可破坏油体微结构,导致芝麻素释放,而石磨制浆可极大程度保护油体微结构。Sesamin and other lignans are very important natural antioxidants in sesame seeds,which have many physiological functions.Clarification of the distribution of sesamin in the subcellular structure of sesame seeds is of great importance for the deep processing of sesame,especially for the extraction and utilization of sesamin.As sesamin is a fat soluble component,the oil body,the main existing state of sesame lipid,was taken as the main research object.The results showed that approximately 95%of sesamin and 95%of lipid were distributed in the oil body,while the rest were distributed in the endoplasmic reticulum and other membrane structures,which showed a very regular quantitative relationship between sesamin and lipid.Alkali washing had little effect on sesamin content in oil body,whereas urea could dissolve sesamin to some extent.High speed shear could destroy the microstructure of oil body,resulting in the release of sesamin.However,stone mill could protect the microstructure of oil body.

关 键 词：芝麻素 油体 亚细胞结构 内质网 碱洗 石磨 

分 类 号：TS201.2[轻工技术与工程—食品科学] TS222[轻工技术与工程—食品科学与工程]