广西地区13个主栽桑品种的桑椹营养与药用品质综合评价

采用因子分析法对广西地区13?个主栽果桑品种的桑椹中主要营养成分、功能成分进行分析,评价其综合营养品质和药用品质,筛选桑椹食、药用开发的专用桑品种。营养品质因子分析结果表明,从15?项指标提取的5?个公因子累计方差贡献率为86.32%,能较好地解释自变量信息,维生素含量、微量元素含量、氨基酸含量和膳食纤维含量是影响桑椹营养品质的最主要的指标。综合得分排列前3位的品种是大10、桑特优2号和桂诱M161,这3个品种可作为桑椹食品开发的专用桑树品种。药用品质因子分析结果表明,从9?项指标提取的4?个公因子的累计方差贡献率为88.02%,较好地反映桑椹药用品质的综合信息,影响桑椹药用品质最主要的指标为多酚、绿原酸、芦丁和花青素。综合得分排列前3位的品种是桂诱M257、桂桑优62和大10,这3个品种可作为桑椹药品、保健品开发的专用果桑品种。

Nutritional and Medicinal Quality of Mulberry Fruit from 13 Main Varieties Grown in Guangxi

The major nutritional and functional components of mulberry fruit from 13 main varieties grown in Guangxi region of China were investigated by factor analysis in an effort to evaluate their nutritional and medicinal quality and to screen out special varieties for the development of food and pharmaceutical products. The factor analysis of nutritional quality indicated that 5 principal components extracted from 15 quality indicators could reflect the comprehensive information on nutritional quality with a cumulative contribution rate of 86.32%. The contents of vitamin, microelements, amino acids and dietary fiber were the main factors influencing nutritional quality. Te 2, Da 10 and Guiyou M161 ranked first to third by comprehensive score among 13 varieties. These three varieties were suitable for food development. The factor analysis of medicinal quality indicated that 3 principal components extracted from 9 quality indicators could reflect the comprehensive information on medicinal quality with a cumulative contribution rate of 88.02%. The main factors influencing medicinal quality were the contents of polyphenols, chlorogenic acid, rutin and anthocyanins. The comprehensive scores of Guiyou M257, Guisangyou 62 and Da 10 were ranked the top three among 13 varieties. These three varieties were suitable for the development of healthcare products and medicines.