Application of qPCR for multicopper oxidase gene (MCO) in biogenic amines degradation by Lactobacillus casei

Abstract

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Interstrain Variability of Human Vaginal Lactobacillus crispatus for Metabolism of Biogenic Amines and Antimicrobial Activity against Urogenital Pathogens

“…One strain showed in vitro capacity to degrade cadaverine (RL05), and six could reduce the amount of tyramine (RL03, RL09, RL12, RL13, RL14, and RL26). Based on our analysis of metabolic pathways, degradation of putrescine is most likely being converted to 4-aminobutanal through diamine oxidase, while tyramine is most likely to be degraded by a multicopper oxidase [16,17]. Interestingly, there are strains, such as RL01 and RL04 that both produce and degrade biogenic amines.…”

Complete genome sequence, metabolic model construction, and huangjiu application of Saccharopolyspora rosea A22, a thermophilic, high amylase and glucoamylase actinomycetes

“…A high content of biogenic amine in huangjiu can cause some damage to the body such as headache, impaired breathing, and blushing ( Liu et al, 2021b ). The strategy to reduce the content of biogenic amines in huangjiu was to screen microorganisms containing biogenic amine-degrading enzymes ( Pištěková et al, 2020 ). The genome of S. rosea A22 contained 5 genes encoding biogenic amine degradation-related enzymes, primarily monoamine oxidase (EC 1.4.3.4) and primary amine oxidase (EC 1.4.3.21) ( Supplementary Table S4 ), indicating that S. rosea had the potential for degrading biogenic amines in huangjiu .…”

Impact of salt concentration on bacterial diversity and changes in biogenic amines during fermentation of farmhouse soybean paste in Northeast China

“…One important way of producing BAs is synthesis via microorganism activities through decarboxylases of precursor amino acids ( Houicher et al, 2021 ; Zhao et al, 2020 ). At the same time, some microbiota can produce decarboxylases to degrade BAs ( Li and Lu, 2020 ; Pištěková et al, 2020 ). The content of BAs in fermented products is the result of the joint action of these two different metabolic pathways.…”