Dynamic changes in physicochemical property,biogenic amines content and microbial diversity during the fermentation of Sanchuan ham  

作　　者：Zhongai Chen Hong Chen Huan Du Cong Chen Kaixiang Lu Qiaoli Xue Yongjin Hu 

机构地区：[1]College of Food Science and Technology,Yunnan Agricultural University,Kunming 650000,China [2]Institute of Food Processing,Guizhou Academy of Agricultural Sciences,Guiyang 550006,China [3]Editorial Department of Journal of Yunnan Agricultural University,Yunnan Agricultural University,Kunming 650000,China

出　　处：《Food Science and Human Wellness》2024年第1期506-516,共11页食品科学与人类健康（英文）

基　　金：funded by National Natural Science Foundation of China(31460445);Science and Technology Talents and Platform Program of Yunnan Province,No.202105AF150049;Yunnan University Key Laboratory of Food Microbial Resources and Utilization(Yunjiaofa[2018]No.135)。

摘　　要：Sanchuan ham is appreciated in Yunnan Province,China,for its characteristic flavor and taste,while the microbial community structure and biogenic amines content remain unclear during fermentation processes.In this study,we explored the physicochemical property,biogenic amines concentration and microbial diversity of external and internal Sanchuan ham by high-throughput sequencing during the processing of Sanchuan ham.Results showed that the nitrite remained at a stable level of 0.15 mg/kg which was significantly lower than the national health standard safety level of 20 mg/kg.In addition,compared with fresh hams,the content of total free amino acids in ripe Sanchuan ham has grown 14 folds;sour and bitter were the main tastes of Sanchuan ham.Notably,the concentration of cadaverine was the highest of all biogenic amines during the entire fermentation period.At the bacterial phyla level,Firmicutes and Actinobacteria were the two main phyla,while at the genus level,Staphylococcus was a significant strain throughout the whole fermentation.Moreover,the dry stage has a great impact on the succession change of microbial community structure.Simultaneously,the change trends and composition of bacteria in the interior have slight discrepancies with those of the exterior of Sanchuan ham.

关 键 词：Sanchuan ham Nitrite cont ent Free amino acids CADAVERINE STAPHYLOCOCCUS 

分 类 号：TS251.65[轻工技术与工程—农产品加工及贮藏工程]