分析与检测

巫山脆李营养品质评价

  • 郝麒麟 ,
  • 陈媛 ,
  • 黄先智 ,
  • 丁晓雯
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  • 1(西南大学 食品科学学院,重庆,400716)
    2(西南大学科技处,重庆,400716)
硕士研究生(丁晓雯教授为通讯作者,E-mail:837731486@qq.com)

收稿日期: 2020-02-23

  网络出版日期: 2020-08-17

Evaluation of nutritional quality of Wushan plum

  • HAO Qilin ,
  • CHEN Yuan ,
  • HUANG Xianzhi ,
  • DING Xiaowen
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  • 1(College of Food Science, Southwest University, Chongqing 400716, China)
    2(Department of Science and Science and Technology, Southwest University, Chongqing 400716, China)

Received date: 2020-02-23

  Online published: 2020-08-17

摘要

为评价重庆巫山脆李的营养品质,随机抽取巫山5个脆李主要种植区域(G、Q、P、S、L)共55份样本,对其VC、可溶性蛋白、γ-氨基丁酸等15个营养指标进行测定,通过主成分分析法(principal component analysis,PCA)评价并比较不同区域脆李的营养品质。结果表明,巫山5个种植区域脆李的营养品质存在一定差异,主成分分析法提取出6个综合性评价指标,累计贡献率达72.331%,选出VB1、多酚、Fe、ABTS自由基清除力、γ-氨基丁酸和VC 6个核心指标用于评价巫山脆李营养品质。巫山脆李的营养品质整体较好,但存在一定的差异,Q区域的脆李营养品质最好,G区域的次之。

本文引用格式

郝麒麟 , 陈媛 , 黄先智 , 丁晓雯 . 巫山脆李营养品质评价[J]. 食品与发酵工业, 2020 , 46(14) : 249 -255 . DOI: 10.13995/j.cnki.11-1802/ts.023727

Abstract

The purpose of this study was to evaluate the nutritional quality of plums in Wushan of Chongqing. Fifty-five samples of Wushan plums were randomly selected from five main growing areas (G, Q, P, S, L) to determine the contents of fifiteen nutritional indexes, such as vitamin C, soluble protein and γ-aminobutyric acid, and the nutritional qualities, and compare by the principal component analysis (PCA). The results showed that there were some differences in the nutritional evaluation indexes of plums in five growing areas of Wushan. The principal component analysis method extracted six comprehensive evaluation indicators with a cumulative contribution rate of 72.331%. Moreover, six core indexes including vitamin B1, polyphenols, Fe, ABTS free radical scavenging power, γ-aminobutyric acid and vitamin C were selected to evaluate the nutritional quality of Wushan plum. In conclusion, the nutritional quality of Wushan plum was better, but there were differences. The best nutritional quality of plum was from Q area, followed by G area.

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