储藏条件及杂质含量对紫苏种子活力及制油品质的影响  

Effect of storage conditions and impurity content on perilla seed vitality and oil quality

作　　者：徐静[1] 王涛 商志伟[1] 王仙萍[1] 温贺[1] 沈奇[1] 李庠[2] XU Jing;WANG Tao;SHANG Zhiwei;WANG Xianping;WEN He;SHEN Qi;LI Xiang(Rapeseed Research Institute,Guizhou Academy of Agricultural Sciences,Guiyang 550008,China;Hunan Cotton Scientific Research Institute,Changde,Hunan 415101,China)

机构地区：[1]贵州省农业科学院油菜研究所,贵阳550008 [2]湖南省棉花科学研究所,湖南常德415101

出　　处：《植物生理学报》2021年第7期1410-1418,共9页Plant Physiology Journal

基　　金：国家自然科学基金(31860391);贵州特色植物种质资源利用与创新人才基地(RCJD2018-14);贵州省科技计划项目(黔科合平台人才[2019]5656号);贵州省科技计划项目(黔科合服企[2021]13号);贵州省农业科学院青年基金(黔农科院青年基金[2018]03号、黔农科院青年基金[2018]24号、黔农科院青年基金[2017]04号);湖南省重点研发项目(2017NK2083);贵州省农业动植物育种专项(黔农育专字[2018]003号)。

摘　　要：以紫苏(Perilla frutescens)籽为试验材料,研究储藏时间、储藏温度及杂质含量对其品质的影响。结果表明:随着储藏时间的延长,发芽率、含油量、出油率逐渐下降,储藏温度越高,下降速率越显著;脂肪酸成分中亚麻酸含量逐渐下降,亚油酸、油酸、硬脂酸含量逐渐增加,棕榈酸含量变化不明显;酸值和过氧化值逐渐升高,上升速率35℃处理>25℃处理>4℃处理。随着杂质含量的增加,紫苏籽出油率明显下降;脂肪酸成分中亚麻酸含量显著下降、脂肪酸值和过氧化值上升明显。为保证紫苏籽制油品质,长期储藏时应置于低温环境,同时,应避免使用常温储藏超过8个月的紫苏籽进行生产加工,且杂质含量应控制在3%以下。Perilla(Perilla frutescens)seeds were used as test material to study the effects of storage time,storage temperature and impurity context on their oil quality.The results indicated that,with the increasing storage time,the germination rate,oil content and oil yield gradually decreased,and the higher the storage temperature,the more significant decline rate.For the fatty acids,the content of linolenic acid gradually decreased,meanwhile,the contents of linoleic acid,oleic acid and stearic acid gradually increased.There was no observed change for the content of palmitic acid.The acid value and peroxide value,both of them gradually increased,from highest to lowest,under 35℃,25℃and 4℃.With the increase of impurity content,the oil yield dramatically reduced.The content of linolenic acid in fatty acid composition significantly decreased,and values of acid and peroxide significantly increased.In order to pursue the better oil quality,the perilla seeds should be placed in a low temperature for long-term storage.At the same time,the seeds which are stored at room temperature for over 8 months must be avoided for the production and processing,and impurity content should be restricted within 3%.

关 键 词：紫苏籽 含油量 脂肪酸成分 酸值 过氧化值 

分 类 号：TS222.1[轻工技术与工程—粮食、油脂及植物蛋白工程]