食品工业科技2024，Vol.45Issue(14)：245-252,8.DOI:10.13386/j.issn1002-0306.2023080259
云南不同品种核桃果实品质分析与综合评价
Fruit Quality Analysis and Comprehensive Evaluation of Different Varieties Walnuts and Pecan in Yunnan
摘要
Abstract
To explore the quality evaluation indicators of walnut and pecan varieties cultured in Yunnan,the contents of 12 nutritional indicators which included in mineral elements,protein,crude fat,and vitamin C of 27 walnut varieties were determined.12 indicators were comprehensively explored by correlation analysis,principal component analysis and cluster analysis to reveal variation and comprehensive quality of walnut resources in Yunnan Province.Results showed that the variation of the content of 12 indicators was relatively rich,the variation coefficient ranged from 5％to 83％,among which the variation coefficient of vitamin C was the largest and the variation coefficient of crude fat was the smallest.The order of the average contents of 9 mineral elements was K＞P＞Mg＞Ca＞Mn＞Na＞Fe＞Zn＞Cu.The average contents of protein,fat and vitamin C were 15.62％,68.63％and 4.66 mg/100 g,respectively.As demonstrated by the results of correlation analysis on 12 indicators,there was a significant positive correlation between protein and P,Fe,Mg,Ca,and Cu.The principal component analysis was used to comprehensively evaluate,showed that the comprehensive quality of walnut varieties'Xiangcha''Yongping''Wanshu'and'Xiaoyuanguo'were the best and the pecan variety'Kaduo'was the better.The clustering analysis results showed that it can be divided into two major categories,namely the group rich in mineral elements and the group with high fat content.Subsequently,by combining with cluster analysis,K,Fe,Mg,Ca,Cu,protein and fat were determined as the critical indicators to evaluate the quality of walnut and pecan varieties cultured in Yunnan.Pecan varieties were suitable for extracting oil,and 22 main walnut varieties were suitable for direct consumption or the development of functional beverages rich in mineral elements and protein.The study clarified the critical indicators for evaluating the quality of Yunnan walnut and explored its quality characteristics,providing a scientific classification method,and laying a theoretical basis for the construction of the Yunnan walnut quality evaluation system.关键词
核桃/品质/主成分分析/聚类分析/综合评价Key words
walnuts/quality/principal component analysis/cluster analysis/comprehensive evaluation分类
轻工纺织引用本文复制引用
张鹏,常丽美,王建雄,杨旭昆,米艳华,刘振环,陈璐,李茂萱,王文治,张木海,杨恩情..云南不同品种核桃果实品质分析与综合评价[J].食品工业科技,2024,45(14):245-252,8.基金项目
云南省重大科技专项计划项目(202202AE090029) （202202AE090029）
云南省重大科技专项(农业)计划项目(202102AE090051) （农业）
高原特色现代农业质量安全科技支撑专项 （）
2023年"三区"科技人才专项. （）
