Identification of Lateolabrax japonicus Freshness by Electronic Nose

doi:10.7506/spkx1002-6630-201306031

Abstract

Abstract: The flavor change in the gill and flesh of Lateolabrax japonicus during different storage periods was evaluated by electronic nose. An electronic nose technology for evaluating the freshness of Lateolabrax japonicus was established through principal component analysis (PCA), linear discriminant analysis (LDA) and loadings analysis coupled with sensory evaluation and TVB-N as well as total bacterial counts. The results showed that the flavor in the gill and flesh of Lateolabrax japonicus was changed with the extension of storage period. The response of electronic nose revealed a gradual increase, and the second sensor played an important role in the first principal component. The response of electronic nose to the gill was stronger than that to the flesh. The analytical results of electronic nose were consistent with the results from sensory evaluation, TVB-N analysis and total bacterial count determination. Therefore, electronic nose can be used to identify the freshness of Lateolabrax japonicus and has a better discrimination in the flavor of the gill than that of the flesh.

Key words: electronic nose, Lateolabrax japonicas, freshness, identification

CLC Number:

TS254.4

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