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J Food Biochem


Title:The volatile flavor compounds of Shanghai smoked fish as a special delicacy
Author(s):Feng M; Dai Z; Yin Z; Wang X; Chen S; Zhang H;
Address:"College of Food Science and Technology, Shanghai Ocean University, Shanghai, China. Laboratory of Aquatic Products Quality & Safety Risk Assessment (Shanghai), China Ministry of Agriculture, Shanghai, China. School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China"
Journal Title:J Food Biochem
Year:2021
Volume:20201110
Issue:1
Page Number:e13553 -
DOI: 10.1111/jfbc.13553
ISSN/ISBN:1745-4514 (Electronic) 0145-8884 (Linking)
Abstract:"In this work, the effects of substrates on volatile flavor compounds of Shanghai smoked fish (SSF) from grass carp was investigated by head space-solid-phase microextraction-gas chromatography-mass spectrometry (HS-SPME-GC-MS) by changing the ratios of soy sauce (15%-25%) to white sugar (10%-20%) and replacing white sugar with reducing sugar (glucose, fructose, and ribose). The results showed the key volatile flavor compounds (ROAV >/= 1) of SSF were 2,4-decadienal, p-xylene, nonanal, and 1-octen-3-ol with the relative contents of 10.33, 1.14, 4.84, and 1.76%, respectively. Furthermore, the existence of soy sauce had an enhancing role in the production of pyrazines, but no significant difference in white sugar. The contents of isovaleraldehyde and benzeneacetaldehyde were increased when white sugar was replaced with glucose, octanol, and 2-pentyl furan for fructose, no obvious difference in ribose. Moreover, the optimal ratios of soaking solutions were 20% soy sauce and 15% white sugar based on the scoring method of sensory evaluation. This study will provide a theoretical basis for the formation of volatile flavor compounds of SSF. PRACTICAL APPLICATIONS: Grass carp usually grows in freshwater such as pond or lake, but bacteria with earthy smell are easily attached to plankton such as diatom and cyanobacteria leading to the accumulation of bad odor substances through the food chain. Shanghai smoked fish (SSF) deeply loved by public is a traditional special dish with crispy crust and delicious taste. The attractive flavor of grass carp could be increased with the help of the Maillard reaction (MR) and seasonings. Therefore, the effect of the MR on the volatile flavor compounds of SSF was investigated by HS-SPME-GC/MS in this work. A detailed study on the volatile flavor compounds of Shanghai smoked fish could not only enrich the theoretical knowledge of flavor chemistry of freshwater fish, but have a profound contribution to the development of freshwater fish processing techniques"
Keywords:China Flavoring Agents Smoke *Taste *Volatile Organic Compounds/analysis Maillard reaction Shanghai smoked fish grass carp volatile flavor compounds;
Notes:"MedlineFeng, Miaomiao Dai, Zhenting Yin, Zesheng Wang, Xichang Chen, Shunsheng Zhang, Hongcai eng Research Support, Non-U.S. Gov't 2020/11/11 J Food Biochem. 2021 Jan; 45(1):e13553. doi: 10.1111/jfbc.13553. Epub 2020 Nov 10"

 
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