中国乳业Issue(6)：119-126,8.DOI:10.12377/1671-4393.25.06.20
基于荟萃分析的乳及乳制品中假单胞菌属的生长动力学研究
Study on the Growth Kinetics of Pseudomonas spp.cryophilic bacteria in Raw Milk Based on Meta-analysis
摘要
Abstract
Pseudomonas spp.is one of the most common genera of cryophilic bacteria in raw milk,and in order to explore the main factors affecting the kinetic parameters of Pseudomonas spp.,this study carried out a meta-analysis by quantitatively integrating the kinetic parameters of microorganisms and quantifying the variability of the strains.By statistically analyzing the growth parameters of more than 750 Pseudomonas spp.under different conditions and predicting their minimum growth temperatures(Tmin)based on the square root model,the results showed that the overall Tmin value of Pseudomonas spp.was-4.06℃,with the Tmin of strains 1248 and E52 in the culture medium being-5.38℃and-6.36℃,respectively.In a low-temperature environment,the high initial inoculum size(Y0,log CFU/mL)in UHT milk significantly shortened the growth retardation period,allowing the microorganisms to enter the logarithmic growth period(λ)more quickly even at lower temperatures.The distribution of maximum specific growth rate(μmax)under the combined effect of temperature,pH value,activity water(Aw)and NaCl concentration ranged from 0.04 h-1 to 1.63 h-1.In addition,NaCl concentration(1.0%to 7.5%)had a significant inhibitory effect on the growth of Pseudomonas spp..This study provided important reference basis for the safety,production optimisation and quality control during the production of milk and dairy products.关键词
假单胞菌属/荟萃分析/生长/失活/建模Key words
Pseudomonas spp./meta-analysis/growth/inactivation/modelling引用本文复制引用
江春铃,祁兵,朱华剑,马颖清,陈柔含,杨晓君,邓波..基于荟萃分析的乳及乳制品中假单胞菌属的生长动力学研究[J].中国乳业,2025,(6):119-126,8.基金项目
上海市奶业优势特色产业集群科研类项目-都市奶业质量安全关键技术研究与集成应用(沪农委2024-74号) （沪农委2024-74号）
