基于主成分分析和判别分析对头茬茸和二茬茸化学成分的对比研究

目的:为研究头茬茸和二茬茸化学成分的差异,以多种化学成分为指标,综合评价头茬茸和二茬茸的品质,并通过判别分析进一步探讨其分类方法.方法:采用多种分析技术手段,测定并比较了头茬茸和二茬茸中多糖、粗蛋白、胶原蛋白、硫酸软骨素、氨基酸、脂肪酸、矿质元素、生物胺、核苷9类化学成分的含量差异,并用SPSS进行主成分分析和判别分析...

Comparative study on chemical components of the first-cut velvet antler and reborn velvet antler based on principal component analysis and discriminant analysis

Objective:To study the differences in chemical constituents between the first-cut velvet antler and the reborn velvet antler,evaluate the quality and distinguish the first-cut velvet antler and reborn velvet antler.Methods:A variety of analytical techniques were used to determine and compare the polysaccharides,crude protein,collagen,chondroitin sulfate,amino acids,fatty acids,mineral elements,biogenic amines and nucleosides in the first-cut velvet antler and reborn velvet antler,and SPSS were used for principal component analysis and discriminant analysis.Results:The results of 5 batches of samples showed that the contents of polysaccharide,crude protein,amino acid,collagen,fatty acid,mineral element,biogenic amine,nucleoside and chondroitin sulfate in the first-cut velvet antler were 8.14 g·kg^-1,563.42 g·kg^-1,214.95 g·kg^-1,9.10 g·kg^-1,485.75 g·kg^-1,13.01 g·kg^-1,108.30 g·kg^-1,201.64 mg·kg^-1 and 2.47 g·kg^-1,respectively;the contents in reborn velvet antler were 8.43 g·kg^-1,561.15 g·kg^-1,204.92 g·kg^-1,7.69 g·kg^-1,503.36 g·kg^-1,11.64 g·kg^-1,101.37 g·kg^-1,208.03 mg·kg^-1 and 2.17 g·kg^-1,respectively.Conclusion:The results of principal component analysis with 9 chemical components as variables showed that the scores of first-cut velvet antler were higher than those of the reborn velvet antler.The discriminant analysis could classify the first-cut velvet antler and reborn velvet antler.This study provides a reference for the establishment of quality standards system of the first-cut velvet antler and reborn velvet antler in the future.