Meiting Guo , Hong Yang , Haopeng Zhang , Boyu Jin , Huihua Mo , Jianping Yue , Shiling Lu
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引用次数: 0
摘要
在此,我们研究了含有多铜氧化酶(MCO)基因的五味子球菌对新疆香肠的基本理化指标、生物胺(BA)积累、MCO 基因表达水平和质量的影响。我们的研究结果表明,引入五面孢子球菌改变了香肠中的主要微生物组成,使其成为发酵过程中的优势菌种。此外,五味 Pediococcus 菌还能通过抑制肠杆菌的生长和上调 MCO 基因的表达来抑制香肠中 BAs 的积累。此外,五胜肽球菌的加入促进了香肠中蛋白质的降解,从而增加了游离氨基酸的含量,还提高了香肠的外观、颜色、质地和总体可接受性评分。总之,我们的研究结果凸显了含有 MCO 基因的五谷猪球菌在减少 BAs 积累和改善新疆香肠感官质量方面的潜力。
Impact of Pediococcus pentosaceus containing multicopper oxidase gene on biogenic amine accumulation and quality of Xinjiang sausage during ripening
Herein, we investigated the impact of Pediococcus pentosaceus containing the multicopper oxidase (MCO) gene on fundamental physical and chemical parameters, biogenic amines (BAs) accumulation, MCO gene expression levels, and the quality of Xinjiang sausage. Our findings revealed that the introduction of Pediococcus pentosaceus altered the predominant microbial composition in the sausage, establishing itself as the dominant species during the fermentation process. Moreover, Pediococcus pentosaceus demonstrated the ability to suppress the accumulation of BAs in the sausage by inhibiting the growth of Enterobacteria and upregulating the expression of the MCO gene. Additionally, the incorporation of Pediococcus pentosaceus facilitated the degradation of protein in the sausage, resulting in an increased content of free amino acids, and also increased the appearance, color, texture and overall acceptability scores of sausages. Overall, our results highlight the potential of Pediococcus pentosaceus containing MCO gene in reducing BAs accumulation and improving the sensory quality of Xinjiang sausage.
期刊介绍:
LWT - Food Science and Technology is an international journal that publishes innovative papers in the fields of food chemistry, biochemistry, microbiology, technology and nutrition. The work described should be innovative either in the approach or in the methods used. The significance of the results either for the science community or for the food industry must also be specified. Contributions written in English are welcomed in the form of review articles, short reviews, research papers, and research notes. Papers featuring animal trials and cell cultures are outside the scope of the journal and will not be considered for publication.