期刊论文

Principal Component Analysis and Cluster Analysis for Evaluating the Free Amino Acid Composition of Inner and Outer Lily Bulb Scales from Different Cultivars

中文

食品科学

1002-6630

2020

41

12

211-220

10.7506/spkx1002-6630-20190709-117

湖南省重点研发计划项目(2017NK2112) 湖南农业科技创新项目(2019JG01,2019TD04) 国家自然科学基金青年科学基金项目(31501543) 长沙市杰出创新青年培养计划项目(KQ1905025)。

本校为其他机构

为研究不同品种百合鳞茎中游离氨基酸(free amino acids,FAAs)综合品质的差异,以7种百合内外鳞片为研究对象,采用液相色谱-串联质谱法测定游离氨基酸种类和含量,采用味道强度值、主成分分析法及聚类分析法综合评价。结果表明:百合中氨基酸含量丰富,均含有21种FAAs,总量在4.10~10.10 mg/g之间。不同品种之间总游离氨基酸(total free amino acids,TFAAs)、必需氨基酸(essential amino acids,EAAs)、呈味氨基酸、药用氨基酸含量均存在差异。整体上,内片TFAAs含量高于外片,平均值分别为7.00 mg/g和6.18 mg/g;所有品种中,兰州(平陆)、兰州(兰州)、川百合中TFAAs含量较高,岷江百合最低;卷丹、川百合中...

This study aimed to analyze the differences in the composition of free amino acids (FAAs) in the inner and outer bulb scales of seven cultivars of lily. We determined FAAs by liquid chromatography-tandem mass spectrometry (LC-MS/MS). A systematic evaluation was performed by measurement of taste activity value (TAV) as well as using principal component analysis (PCA) and cluster analysis (CA). The results showed that a total of 21 FAAs were detected in all samples at concentrations ranging from 4.10 to 10.10 mg/g. There were differences in the c...