电子鼻在肉味香精质量控制中的应用研究

摘要

利用电子鼻系统分析了不同物理状态、不同香气特征以及不同生产批次的肉味香精气味的变化，采用多元统计方法对所获得的数据进行了主成分分析（PCA）、判别因子分析（DFA）以及统计质量控制分析（SQC），构建了质量控制模型并对样品的质量稳定性进行了评价。结果表明，电子鼻能够识别出不同生产批次的同一肉味香精；通过对电子鼻进行严格的训练并建立质量控制模型，可成功实现利用合格产品对未知样品进行质量控制。%Electronic nose was used to detecte the change of meat flavor with different physical states ,different flavor characteristics,and different production date. The obtained data were analyzed with principal component analysis (PCA) ,discriminant factor analysis (DFA),and statistical quality control (SQC) by multivariate sta-tistical method. The models of quality control were established ,and the quality consistency of the samples was e-valuated. The results showed that:meat flavors with different production date could be distinguished by electron-ic nose;the quality of unknown samples could be successfully control by qualified products which were trained by electronic nose along with established quality control model.