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Effect of fermentation by Aspergillus oryzae on the biochemical and sensory properties of anchovy ( Engraulis japonicus ) fish sauce
Author(s) -
Sun Jianan,
Yu Xiaohang,
Fang Bohuan,
Ma Lei,
Xue Changhu,
Zhang Zhaohui,
Mao Xiangzhao
Publication year - 2016
Publication title -
international journal of food science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.831
H-Index - 96
eISSN - 1365-2621
pISSN - 0950-5423
DOI - 10.1111/ijfs.12981
Subject(s) - anchovy , aspergillus oryzae , food science , fermentation , engraulis , chemistry , taste , sugar , fish <actinopterygii> , biology , fishery
Summary This study obtained an anchovy flavourful fish sauce by a bioprocess of aerobic fermentation with Aspergillus oryzae OAY1 in a period of time as short as 3 days. Amino nitrogen of the fish sauce increased to 7.35 mg mL −1 by optimisation with response surface methodology (RSM). Results of chemical analysis showed that amino nitrogen, hydrolysis degree, reducing sugar and total amino acids all increased, along with the enhanced antioxidant activity. With regard to biogenic amines, most of the tested biogenic amines decreased after fermentation. Electronic nose test revealed that the odour of the fish sauce became more balanced and favourable after fermentation. In addition, volatile odorant analysis and sensory evaluation showed that no particularly unpleasant flavour ingredient was found in the anchovy fish sauce, and the taste was overall satisfactory. Meanwhile, consumer acceptance test showed that the anchovy fish sauce produced in this study using A. orzyae OAY1 had a high consumer acceptance similar to the commercial anchovy fish sauce. This aerobic fast‐fermentation process provided an efficient method for high‐quality fish sauce production.

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