亚硝酸盐
化学
食品科学
发酵
乳酸
细菌
亚硝酸钠
风味
检出限
硝酸盐
色谱法
生物
有机化学
遗传学
作者
Wenshan Luo,Wan-Lin Wu,Xiaoyi Du,Yuanshan Yu,Jijun Wu,Yujuan Xu,Lü Li
标识
DOI:10.1016/j.fbio.2023.102554
摘要
Nitrite and biogenic amines (BAs) are widely found in fermented vegetables, while there is no research about the nitrite and BAs of Cantonese pickle. Therefore, the nitrite and BAs contents of 20 commercial Cantonese pickles were analyzed. Among these Cantonese pickles, the nitrite levels of samples 9 (23.95), 11 (58.68) and 19 (46.64 mg/kg) exceeded the limit standard, and the total BAs concentration of sample 12 (1143.29 mg/kg) above the recommended safety limit. Then three lactic acid bacteria (LAB) with the higher abilities of degrading nitrite and BAs were selected from the pickle samples with low nitrite and BAs concentration, which were identified as Lactiplantibacillus plantarum S1, L. plantarum S14 and Limosilactobacillus fermentum G9, respectively. Furthermore, in order to evaluate the application potential of screened LAB in the control BAs and nitrite in Cantonese pickle, the influences of these three LAB on nitrite, BAs, organic acids, and volatile compounds of Cantonese pickles were investigated. Compared to natural fermentation group, the nitrite-peak of inoculation fermentation groups were smaller (<16 mg/kg), and their BAs contents were always at lower levels (<51 mg/kg). Moreover, these selected LAB could enrich the concentration and type of organic acids and volatile substances in Cantonese pickle. Therefore, it could be concluded that these three LAB were potential for controlling nitrite and BAs in Cantonese pickle.
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