Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
Food Res Int. 2022 Dec;162(Pt B):112084. doi: 10.1016/j.foodres.2022.112084. Epub 2022 Oct 28.
This study aimed to investigate the biogenic amines (BAs) in dry sausages collected from different regions in northeast China; explore the potential correlation amongst BAs, free amino acids (FAAs) and bacterial communities; and determine the key bacteria that produced or inhibited BAs. The contents of BAs significantly differed amongst various dry sausages. The dominating BAs were putrescine and spermine. Further analysis of the FAA profile and its relationship with BAs showed that a large number of available precursor FAAs could cause the accumulation of their corresponding BAs. A total of 118 genera were identified in dry sausages amongst which Staphylococcus and Weissella were the dominant genera. From the correlation between BAs and species, 13 core species were significantly correlated with BAs; amongst them, 11 were positively correlated, and two were negatively correlated. This work assessed the levels of BAs in dry sausages from northeast China and demonstrated that available FAAs and complex bacterial composition were closely related to BA accumulation.
本研究旨在调查中国东北地区不同地区采集的干香肠中的生物胺（BAs）；探索 BAs、游离氨基酸（FAAs）和细菌群落之间的潜在相关性；并确定产生或抑制 BAs 的关键细菌。不同干香肠中的 BAs 含量存在显著差异。主导 BAs 为腐胺和精胺。进一步分析 FAA 谱及其与 BAs 的关系表明，大量可用的前体 FAA 可能导致其相应 BAs 的积累。在干香肠中共鉴定出 118 个属，其中葡萄球菌属和魏斯氏菌属是主要的属。从 BAs 与物种的相关性来看，13 个核心物种与 BAs 显著相关；其中 11 个呈正相关，2 个呈负相关。本工作评估了中国东北地区干香肠中 BAs 的水平，并表明可用的 FAAs 和复杂的细菌组成与 BA 积累密切相关。
