食品科学 ›› 2010, Vol. 31 ›› Issue (13): 82-87.doi: 10.7506/spkx1002-6630-201013020

• 基础研究 • 上一篇    下一篇

基于主成分分析法研究茶叶加工工艺对茶饮料汤色稳定性的影响

张瑞莲1,尹军峰1,*,袁海波1,许勇泉1,陈建新1,叶国注2,陈素芹2   

  1. 1.中国农业科学院茶叶研究所,国家茶产业工程技术研究中心,农业部茶及饮料植物产品加工与质量控制重点实验室 2.深圳市深宝华城食品有限公司
  • 收稿日期:2009-10-14 修回日期:2010-04-20 出版日期:2010-07-01 发布日期:2010-12-29
  • 通讯作者: 尹军峰 E-mail:ruilianzhang686@163.com
  • 基金资助:

    浙江省重大科技专项(优先主题)农业项目(2008c12038);农业部农业公益性行业科研专项(3-35-15)

Using Principal Component Analysis for Investigating the Effects of Processing Conditions on Color Stability of Tea Infusion

ZHANG Rui-lian1 YIN Jun-feng1,* YUAN Hai-bo1 XU Yong-quan1 CHEN Jian-xin1 YE Guo-zhu2 CHEN Su-qin2   

  1. 1. Tea Research Institute, Chinese Academy of Agricultural Sciences, National Engineering Technology Research Center for Tea
    Industry, Key Laboratory of Processing and Quality Control of Tea and Beverage Plants, Ministry of Agriculture, Hangzhou 310008,
    China 2. Shenzhen Shenbao Huacheng Foods Tech. Co. Ltd., Shenzhen 518000, China
  • Received:2009-10-14 Revised:2010-04-20 Online:2010-07-01 Published:2010-12-29
  • Contact: YIN Jun-feng E-mail:ruilianzhang686@163.com

摘要:

采用主成分分析(principal components analysis,PCA)法以茶多酚含量、浊度、色泽为指标对38个不同茶叶加工工艺制成茶饮料后汤色稳定性进行分析,从17个影响茶饮料品质稳定性指标中提取4个主成分构建数学评价模型,并利用感官评定法对该方法在茶饮料汤色稳定性研究中的应用进行验证。研究表明,应用主成分分析(PCA)法的结果与感官评定法结果一致,即茶叶加工工艺A-1、A-4、A-3、A-7、A-21和A-2制成的茶饮料汤色稳定性较好,表明该方法在茶饮料的汤色稳定性研究中具有可行性。

关键词: 茶饮料, 汤色, 稳定性, 主成分分析

Abstract:

Principal component analysis (PCA) was applied to analyze infusion color stability of tea samples made by different processing technologies. Principal components, namely tea polyphenol content, turbidity, and color were used to establish mathematical models for evaluating the effects of processing conditions on the stability of tea infusion. Sensory evaluation was used for verifying the results obtained in this investigation. Consistent results were obtained between PCA and sensory evaluation. Better color stability of tea infusion could be achieved through the following steps: A-1, A-4, A-3, A-7, A-21 and A-2. Therefore, it is feasible to investigate the color stability of tea infusion through PCA, which provides an objective and comprehensive evaluation approach to further exploring the stability of tea infusion.

Key words: tea infusion, color, quality stability, principal component analysis

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