摘要
以荠菜种子为原料,分析了其营养成分及抗氧化性能。结果表明,荠菜种子中含有多种营养成分,其中粗脂肪含量最高,为37.6g/100g,不饱和脂肪酸含量占总脂肪酸的87.28%,α-亚麻酸含量占总脂肪酸的32.80%,亚油酸含量占总脂肪酸的20.13%,芥酸含量占总脂肪酸的0.30%;粗蛋白质含量为18.7g/100g,第一限制氨基酸为蛋氨酸,其氨基酸评分为64;E族维生素中,γ-VE含量最高,为14.0mg/100g;矿物质中,钾、钙、镁含量均很高。荠菜种子的水提物对DPPH自由基的清除能力最强,约相当于抗坏血酸的1/20;对H2O2、OH自由基和NO2-的清除能力约相当于抗坏血酸的1/40~1/30。
Analyzed the nutritional value and antioxidant capacity of Shepherd’s purse seed.There were many kinds of nutrients in the seed of Shepherd’s purse.The content of crude fat ranked the first with 37.6 g/100 g,and among the crude fat,unsaturated fatty accounted for 87.28%, α-linolenic acid and linoleic accounted for 32.80% and 20.12%,respectively.The erucic acid took the only left 0.30%.The crude protein content was 18.7 g/100 g.The first limiting amino acid of crude protein was methionine,and its amino acid score was 64.Among the group of Vitamin E,contents of γ-vitamin E was the highest at 14.0 mg/100 g.The contents of K、Ca、Mg were high among the minerals.The water extracts of Shepherd’s purse seeds had the strongest ability of scavenging DPPH·,which was about 1/20 of ascorbic acid.To H2O2,OH· and NO2-,its capacity was about 1/40 to 1/20 of ascorbic acid.
作者
宋照军
王风雷
赵功玲
冯晓涵
丁可
SONG Zhao-jun;WANG Feng-lei;ZHAO Gong-ling;FENG Xiao-han;DING Ke(Department of Food Science,Henan Institute of Science and Technology,Xinxiang,Henan 453003,China;Department of Cooking and Food,Zhengzhou Tourism Vocational College,Zhengzhou,Henan 451464,China)
出处
《食品与机械》
北大核心
2020年第6期71-74,共4页
Food and Machinery
基金
河南省科技公关项目(编号:182102110109)。
关键词
荠菜
种子
营养价值
抗氧化
Shepherd s purse
seed
nutritional value
antioxidant capacity
