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Study on the quality of Acetes by infrared assisted hot air drying techniques

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  • Ocean College,Zhejiang University of Technology,Hangzhou 310014,China

Abstract

In this study,the effects of drying temperatures,radiation distances and material loads   on the quality of Acetes by infrared assisted hot air drying techniques were investigated.The   mass fraction of free amino acids of Acetes was determined by the automatic amino acid analysis
and the volatile compounds were analyzed by the solid phase microextraction gas chromatographymass    spectrometry(SPME-GC-MS).The results showed that the ideal color and TBA value were    achieved at the conditions of drying temperature 60 ℃,material load 1.5kg/m2 and radiation    distance 15cm.The content of free amino acid in dried Acetes increased by 282%,267%,257%,
222%at 50,60,70,80℃respectively.The Arg,Glu,Ala,Val,Met attributed greatly to the    flavor of Acetes.With the increase of temperature,the content of free amino acid decreased    accordingly.According to GC-MS analysis,19,54,54,55and 48volatile compounds were     detected in fresh Acetes and dried Acetes at 50,60,70,80 ℃ respectively.The contents of    alkanes,alcohols and N-containing compounds in volatile compounds increased significantly in  dried Acetes.

Cite this article

ZHOU Yao,ZHANG Jianyou . Study on the quality of Acetes by infrared assisted hot air drying techniques[J]. Bulletin of Fermentation Science and Technology, 2017 , 46(2) : 121 -128 . DOI: 10.16774/j.cnki.issn.1674-2214.2017.02.011

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