Suppr超能文献

采用能降解胺的乳酸菌发酵剂提高肉糕的安全性和质量。

Improving the safety and quality of Roucha using amine-degrading lactic acid bacteria starters.

机构信息

School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China(1); National Engineering Research Center of Seafood, Dalian 116034, PR China.

School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China(1); National Engineering Research Center of Seafood, Dalian 116034, PR China.

出版信息

Food Res Int. 2022 Nov;161:111918. doi: 10.1016/j.foodres.2022.111918. Epub 2022 Sep 13.

Abstract

Biogenic amines (BA) are often present at high concentrations in fermented meat and cause foodborne illness. The aim of this work was to screen amine-degrading starters for Roucha (a fermented meat) to improve product safety and quality. Firstly, Weissella viridescens F2 and Lactiplantibacillus plantarum His6 with multi-copper oxidase activity and high degradation rates towards histamine and tyramine were selected as single or mixed starters. Additionally, the effect of starters on bacterial community succession, acid production, BA accumulation, free amino acid profiles, and volatile compound profiles were evaluated during the fermentation of Roucha. Results indicated that all starters could effectively reduce the accumulation of BA in Roucha. At the end of fermentation, Lpb. plantarum His6 as a single starter reduced the histamine level (38.15 %), while mixed starters (Lpb. plantarum His6 + W. viridescens F2) possessed a high tyramine-reduction rate (54.95 %) and total BA-reduction rate (46.64 %). Bacterial succession analysis revealed that starters could help establish the dominance of lactobacilli or Weissella quickly, which contributed to the direct degradation of BA and inhibited the growth of amine-producing bacteria. Furthermore, Lpb. plantarum His6 could promote the accumulation of essential amino acids (leucine, phenylalanine, threonine, isoleucine), sweet and umami amino acids (glycine, threonine, glutamate), and volatile compounds of good odor, indicating that this strain greatly contributed to the development of good taste and aroma characteristics in Roucha. Overall, this work shows that the application of amine-degrading starters is an effective strategy to reduce the BA accumulation and improve the quality of Roucha. Thus, these findings can provide foundations for the industrial production of Roucha.

摘要

生物胺(BA)通常在发酵肉中以高浓度存在,并导致食源性疾病。本工作旨在筛选用于罗查(发酵肉)的胺降解发酵剂,以提高产品安全性和质量。首先,选择具有多铜氧化酶活性和对组氨酸和酪胺具有高降解率的青绿色魏斯氏菌 F2 和植物乳杆菌 His6 作为单一或混合发酵剂。此外,还评估了发酵剂对罗查发酵过程中细菌群落演替、产酸、BA 积累、游离氨基酸谱和挥发性化合物谱的影响。结果表明,所有发酵剂都能有效降低罗查中 BA 的积累。在发酵结束时,单一发酵剂 Lpb. plantarum His6 降低组氨酸水平(38.15%),而混合发酵剂(Lpb. plantarum His6+W. viridescens F2)具有高酪胺还原率(54.95%)和总 BA 还原率(46.64%)。细菌演替分析表明,发酵剂可以帮助快速建立乳杆菌或魏斯氏菌的优势,这有助于 BA 的直接降解,并抑制胺产生菌的生长。此外,Lpb. plantarum His6 可以促进必需氨基酸(亮氨酸、苯丙氨酸、苏氨酸、异亮氨酸)、甜和鲜味氨基酸(甘氨酸、苏氨酸、谷氨酸)以及良好气味挥发性化合物的积累,表明该菌株极大地促进了罗查良好口感和香气特征的发展。总的来说,这项工作表明应用胺降解发酵剂是减少 BA 积累和提高罗查质量的有效策略。因此,这些发现可为罗查的工业化生产提供基础。

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验