食品科学2012，Vol.33Issue(21)：275-279,5.
套作大豆贮藏蛋白、氨基酸组成分析及营养评价
Storage Protein and Amino Acid Composition Analysis and Nutrition Evaluation of Relay-Cropped Soybean
摘要
Abstract
Objective: To analyze the storage protein and amino acid composition and evaluate the nutritional value of three different relay-cropped soybean cultivars: Guixia No.3,Gongxuan No.1 and Zhongjiang Shiyuehuang.Methods: Soybean protein was determined using a near infrared grain analyzer,and amino acid composition was determined using an automatic amino acid analyzer.Results: The average content of relay-cropped soybean protein was 48.71%,and the relative contents of storage protein 7S and 11S were 24.94% and 67.57%,respectively.As far as the high-protein cultivar Zhongjiang Shiyuehuang was concerned,relay-cropped soybean had a storage protein 11S/7S ratio as high as 3.08,which was significantly increased by 0.19(P = 0.001) compared with that of(2.89) of solo-cropped soybean.The average amino acid content in relay-cropped soybean was 37.3%,and the average ratio of essential to total amino acids was not less than 38%,close to or larger than that obtained from the FAO/WHO standard or the whole egg reference pattern.According to the FAO/WHO reference pattern,the amino acid score(AAS),chemical score(CS),essential amino acid index(EAAI),score of RCAA(SRCAA) of relay-cropped soybean were 64.34,76.82,82.10,83.06 and 78.06,respectively,with variations of 2.38(P = 0.002),3.01(P = 0.012),0.03(P = 0.209),0.45(P = 0.202) and-0.19(P = 0.754) when compared with solo-cropping soybean.Conclusion: Relay-cropped soybean has the same or even higher nutritional value as solo-cropped soybean and more reasonable 11S/7S ratio which is good for the quality of soybean protein products.As a consequence,it is necessary to select highly nutritional soybean cultivars for relay-cropping with corn.关键词
套作大豆/贮藏蛋白/氨基酸/营养评价Key words
relay-cropping soybean/storage protein/amino acids/nutritional evaluation分类
农业科技引用本文复制引用
蒋涛,杨文钰,刘卫国,王凤..套作大豆贮藏蛋白、氨基酸组成分析及营养评价[J].食品科学,2012,33(21):275-279,5.基金项目
国家“973”计划项目（2011CB100400 （）
2011CB100402） （）
