Source Tracker Modeling Based on 16S rDNA Sequencing and Analysis of Microbial Contamination Sources for Pasteurized Milk

Milk is rich in fat, protein, minerals, vitamins, peptides, immunologically active substances, and other nutrients, and it plays an important role in satisfying human nutrition and health. However, dairy product safety incidents caused by microbial contamination have occurred. We found that the tota...

Full description

Saved in:
Bibliographic Details
Published in:Frontiers in nutrition (Lausanne) 2022-04, Vol.9, p.845150-845150
Main Authors: Du, Bingyao, Meng, Lu, Wu, Haoming, Yang, Huaigu, Liu, Huimin, Zheng, Nan, Zhang, Yangdong, Zhao, Shengguo, Wang, Jiaqi
Format: Article
Language:English
Subjects:
16s rDNA sequencing
contamination
microbial
milk
Nutrition
Source Tracker
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Milk is rich in fat, protein, minerals, vitamins, peptides, immunologically active substances, and other nutrients, and it plays an important role in satisfying human nutrition and health. However, dairy product safety incidents caused by microbial contamination have occurred. We found that the total bacterial numbers in the pasteurized product were low and far below the limit requirements of the food safety standards of the European Union, the United States, and China. At the genus level, the primary microbial groups found in milk samples were , and , while in the equipment rinse water and air samples there was contamination by and . The Source Tracker model analysis indicated that the microorganisms in the final milk products were significantly related to the contamination in product tanks and raw milk. Therefore, it is the hope that this work can provide guidance to pinpoint contamination problems using the proper quality control sampling at specific stages in the pasteurization process.
ISSN:2296-861X
2296-861X
DOI:10.3389/fnut.2022.845150