中国奶牛Issue(4)：42-46,5.DOI:10.19305/j.cnki.11-3009/s.2026.04.009
基于微生物-活性物质关联性的生乳保鲜期研究
Research on Predicting Shelf Life of Raw Milk Based on the Association between Microorganisms and Active Substances
摘要
Abstract
To investigate the correlation between microbial proliferation and degradation of active substances in raw milk during storage,milk samples from 20 healthy cows were analyzed using an integrated rapid detection system for bacterial somatic cells to monitor microbial dynamics over 72 hours,while ELISA kits quantified the activities of lactoferrin(LF)and lactoperoxidase(LPO).Results showed that microbial growth significantly reduced milk freshness(P<0.05).LF activity began to decline after 32 hours,with average activity decreasing to 86%at 48 hours and 61%at 72 hours.LPO activity exhibited an initial increase followed by a decrease.Correlation analysis confirmed a significant positive relationship between microbial count and degradation rates of both active substances(r>0.8).This study reveals the time-dependent degradation patterns of bioactive components in raw milk,providing a theoretical basis for optimizing dairy preservation strategies and quality control.关键词
储存时间/新鲜度/菌落总数/乳铁蛋白/乳过氧化物酶Key words
Storage time/Freshness/Total number of colonies/Lactoferrin/Lactoperoxidase分类
轻工纺织引用本文复制引用
李照,陈云,刘宇,刘云鹏,董雪娜,王俊燕,王彩霞,母智深..基于微生物-活性物质关联性的生乳保鲜期研究[J].中国奶牛,2026,(4):42-46,5.基金项目
2024年内蒙古自治区乳品营养健康与安全企业重点实验室项目(2025KYPT0065) （2025KYPT0065）
牛乳和乳铁蛋白分离纯化关键技术研究及产业化制备(2025TEL29). （2025TEL29）
