食品科学

• 基础研究 • 上一篇    下一篇

基于主成分分析的不同醒发条件下挂面的特征质构

伍 婧1,王远亮1,李 珂1,周小玲2,李宗军1,*   

  1. 1.湖南省食品科学与生物技术重点实验室,湖南农业大学食品科学技术学院,湖南 长沙 410128;
    2.湖南省振华食品检测研究院,湖南 长沙 410007
  • 出版日期:2016-11-15 发布日期:2016-11-18

Evaluation of Noodles Made under Different Proofing Conditions Based on Principal Component Analysis

WU Jing1, WANG Yuanliang1, LI Ke1, ZHOU Xiaoling2, LI Zongjun1,*   

  1. 1. Hunan Province Key Laboratory of Food Science and Biotechnology, College of Food Science and Technology, Hunan Agricultural
    University, Changsha 410128, China; 2. Hunan Zhenhua Food Detection and Research Institute, Changsha 410007, China
  • Online:2016-11-15 Published:2016-11-18

摘要:

为了克服以往评价挂面品质方法的弊端,基于挂面质构指标,应用主成分分析方法,从样本相关矩阵出发,对不同醒发条件下的挂面的7 个质构指标进行了分析。根据累计贡献率达到84.41%以上,确定了与挂面品质相关的3 个独立新指标:第1主成分(Z1),硬度因子;第2主成分(Z2),回复性因子;第3主成分(Z3),弹性因子,其中第1、2、3主成分的贡献率分别为40.20%、27.84%、16.37%,可代表挂面特征质构的变化趋势。通过对各组挂面主成分评分结果进行分析,表明采用主成分分析法作为挂面质构品质评价方法是可行的。

关键词: 挂面, 醒发, 主成分分析, 质构特性

Abstract:

In order to overcome the disadvantages of the traditional evaluation method for noodle quality, seven texture
parameters of noodles made under different proofing conditions were analyzed using principal component analysis. As
they contributed to 84.41% of the cumulative variance, three new independent indexes i.e., hardness factor as the first
principal component (Z1), resilience factor as the second principal component (Z2) and elasticity factor as the third principal
component (Z3) were established to be related to the quality of noodles. The principal component analysis showed that the
contribution rates of the first, second and third principal components were 40.20%, 27.84% and 16.37%, respectively, which
could represent the changing trends of noodles texture. By analyzing the principal component scores for the noodles made
under the proofing conditions studied, principal component analysis is feasible to evaluate the texture of noodles.

Key words: noodles, proofing, principal component analysis, texture properties

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