摘要
为探究辐照对不同水分含量(5%、10%、15%)亚麻籽及其压榨油脂品质的影响,利用60Coγ射线对不同水分含量的亚麻籽进行了辐照处理,分析辐照前后亚麻籽中脂肪酶活度及其压榨油脂的理化指标、脂肪酸组成和营养成分的变化。结果表明:辐照可以降低亚麻籽的脂肪酶活度,导致亚麻籽油的酸价、过氧化值及共轭二烯、共轭三烯和饱和脂肪酸含量增加,碘值及不饱和脂肪酸、维生素E、类胡萝卜素和叶绿素含量减少。表明辐照对亚麻籽及其油脂品质的影响与亚麻籽水分含量有关,且水分含量越大,影响越大。
To investigate the effects of irradiation on the quality of flaxseed and pressed oil with different moisture contents(5%,10%,15%),60 Coγ-rays were used to irradiate flaxseeds with different moisture contents.The changes in lipase activity,of flaxseeds physicochemical properties,fatty acid composition,and nutritional components of pressed oil before and after irradiation were analyzed.The results showed that irradiation could reduce the lipase activity of flaxseed,leading to an increase in the acid value,peroxide value,conjugated diene,conjugated trienes,and saturated fatty acid content of flaxseed oil,as well as a decrease in iodine value and unsaturated fatty acid,vitamin E,carotenoid,and chlorophyll content,indicating that the effect of irradiation on the quality of flaxseed and its oil was related to the moisture content of flaxseed,and the higher the moisture content,the greater the impact.
作者
刘兴鑫
张亚哲
乐伍
向鹏飞
张振山
LIU Xing-xin;ZHANG Ya-zhe;LE Wu;XIANG Peng-fei;ZHANG Zhen-shan(College of Food Science and Engineering,Henan University of Technology,Zhengzhou 450001,Henan,China)
出处
《粮食与油脂》
北大核心
2025年第2期69-74,共6页
Cereals & Oils
基金
国家自然基金(32172261)。
关键词
亚麻籽
辐照加工
水分含量
油脂品质
flaxseed
irradiation processing
moisture content
oil quality
