Screening, identification and biogenic amines-degrading bacteriafrom Doubanjiang
ZHAO Jiadi1,2,3, SHAN Wanxiang1,3, NIU Chengtuo1,2,3, MIN Shihao1,2,3, ZHENG Feiyun1,2,3, LIU Chunfeng1,2,3, WANG Jinjing1,2,3, LI Qi1,2,3*
1(Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi 214122, China) 2(Lab of Brewing Science and Technology, School of Biotechnology, Jiangnan University, Wuxi 214122, China) 3(School of Biotechnology, Jiangnan University, Wuxi 214122, China)
Abstract: This study aims to screen and identify biogenic amines-degrading strains. the bacterial isolates having biogenic amines degradation were isolated from Doubanjiang (broad bean paste) samples. One isolate, identified as Pediococcus acidilactici M-28, displayed the remarkable biogenic amines-degrading ability. It degraded histamine and tyramine at the salinity of 0-9% with the highest degrading percentage could reach 89.02% and 31.49%, respectively. At the temperature optimal (30 ℃) it degraded 65.51% of histamine and 28.06% of tyramine, while at the optimal pH (pH 6) it did 62.73% histamine and 23.78% tyramine.
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2020, Vol. 46 
