套作大豆贮藏蛋白、氨基酸组成分析及营养评价

食品科学 ›› 2012, Vol. 33 ›› Issue (21): 275-279.

套作大豆贮藏蛋白、氨基酸组成分析及营养评价

蒋涛，杨文钰*，刘卫国，王凤

四川农业大学农学院，农业部西南作物生理生态与耕作重点实验室

收稿日期:2012-04-08 修回日期:2012-10-22 出版日期:2012-11-15 发布日期:2012-11-09
通讯作者: 杨文钰 E-mail:wenyu.yang@263.net
基金资助:
科技部国家重点基础研究发展计划(973计划)：作物多样性对病虫害生态调控和土壤地力的影响

Storage Protein and Amino Acid Composition Analysis and Nutrition Evaluation of Relay-Cropped Soybean

Received:2012-04-08 Revised:2012-10-22 Online:2012-11-15 Published:2012-11-09

摘要/Abstract

摘要： 目的：分析不同品质类型套作大豆贮藏蛋白、氨基酸组分特征，对套作大豆蛋白质的营养价值进行评价。方法：使用近红外谷物分析仪、氨基酸分析仪等测定大豆蛋白质、氨基酸等指标。结果：套作大豆蛋白质平均含量48.71%，贮藏蛋白7S、11S相对含量分别为24.94%和67.57%，11S/7S比值高达2.74，高蛋白型套作大豆D3(中江＋月黄)贮藏蛋白11S/7S高达3.08，比其净作(11S/7S比值为2.89)极显著升高0.19(P=0.001)；套作大豆氨基酸总量达到37.3%，其中必需氨基酸含量占总氨基酸的38%以上，接近或高于FAO/WHO、全蛋参考模式同种氨基酸含量；FAO/WHO参考模式下套作大豆5种化学评分：氨基酸评分(AAS)、化学评分(CS)、必需氨基酸指数(EAAI)、氨基酸比值系数分(SRCAA)和必需氨基酸相对比值(EAARR)分别为64.34、76.82、82.10、83.06、78.06，与净作相比分别变化：2.38(P=0.002)、3.01(P=0.012)、0.03(P=0.209)、0.45(P=0.202)、－0.19(P=0.754)。结论：套作大豆具有与净作大豆一致甚至更高的氨基酸营养价值，11S/7S比值更合理，可保证大豆蛋白制品的品质。因此选择综合营养价值高的大豆品种与玉米进行套作种植。

关键词: 套作大豆, 贮藏蛋白, 氨基酸, 营养评价

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.

Key words: relay-cropping soybean, storage protein, amino acids, nutritional evaluation

中图分类号:

S565.1

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.

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