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基于主成分分析法的贵州芸豆品质评价 被引量:14

Quality evaluation of Guizhou kidney beans based on principal component analysis
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摘要 以贵州7种芸豆为研究对象,基于其主要营养成分进行主成分分析并评价其品质。结果表明:芸豆中蛋白质含量为19.11%~23.69%,总膳食纤维含量为23.09%~27.60%,其中英国红的总膳食纤维含量最高;7种芸豆中含有丰富的Ca、Mg、P、K,其含量分别为0.09%~0.20%,0.19%~0.29%,0.45%~0.61%,1.48%~1.69%;不同芸豆中谷氨酸、天冬氨酸、亮氨酸含量较其他氨基酸含量高,分别为干重的3.41%~4.61%,2.52%~3.33%,1.68%~2.28%。经主成分分析,提取出5个主成分,累积方差贡献率达95.711%,通过蛋白质、锰、氨基酸、脂肪、膳食纤维、钾、钠等主要因素解释了原有18个指标的信息,经评价模型计算综合得分,排名前3的品种依次为英国红、龙12-2614、科芸1号。 Seven types of Guizhou kidney beans were used to evaluate their quality based on principal component analysis of main nutritional components.The results showed that the content of protein in kidney beans ranged from 19.11%to 23.69%.The total contents of the dietary fiber were found ranging from 23.09%to 27.60%,and those in British red bean were the highest.Seven kinds of kidney beans were rich in Ca,Mg,P,and K,ranging from 0.09%to 0.20%,0.19%to 0.29%,0.45%to 0.61%,and 1.48%to 1.69%,respectively;The contents of glutamic acid,aspartic acid,and leucine in these kidney beans were higher than that of the other amino acids,which ranged from 3.41%to 4.61%,2.52%to 3.33%,and 1.68%to 2.28%of their dry weights,respectively.After the principal component analyses,five principal components were extracted,and the cumulative variance contribution rate reached 95.711%.The information of the original 18 indicators was explained by the main factors such as protein,manganese,amino acid,fat,dietary fiber,potassium,and sodium.The comprehensive scores were calculated by the evaluation model,and the top three varieties were found to be British Red,Long 12-2614,and Ke Yun 1.
作者 王何柱 朱勇 朱怡 何友勋 秦礼康 梁亚丽 WANG He-zhu;ZHU Yong;ZHU Yi;HE You-xun;QIN Li-kang;LIANG Ya-li(School of Liquor&Food Engineering,Guizhou University,Guiyang,Guizhou 550025,China;Plant Protection and Plant Quarantine Station of Guizhou Province,Guiyang,Guizhou 550001,China;Bijie Institute of Agricultural Sciences,Bijie,Guizhou 551700,China)
出处 《食品与机械》 北大核心 2020年第3期48-53,共6页 Food and Machinery
基金 贵州省食用豆工程技术研究中心项目(编号:黔科合平台人才[2018]5254号) 贵州省重点农业技术推广项目(编号:黔财农[2017]106号) 贵州省现代农业产业技术体系(特色杂粮)建设项目(编号:黔财农[2018]81号) 贵州省科技计划项目(编号:黔科合平台人才[2018]5781号)。
关键词 芸豆 品质特性 主成分分析 kidney beans quality characteristics principal component analysis
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