Analysis of contaminated microorganisms in commercial honey

ObjectiveTo investigate the microbial contamination in 54 batches of commercial honey.MethodsAerobic plate colony counts for bacteria and colonies of mould and osmophilic yeasts in honey were determined according to the National Food Safety Standard. The bacteria and fungi in unqualified samples wer...

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Main Authors: JIANG Bo, LI Qiongqiong, ZHANG Zhihua, DAI Jiali, QIN Feng, YANG Meicheng
Format: Article
Language:zho
Published: Shanghai Preventive Medicine Association 2022-01-01
Series:Shanghai yufang yixue
Subjects:
Online Access:http://www.sjpm.org.cn/article/doi/10.19428/j.cnki.sjpm.2022.21087
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author JIANG Bo
LI Qiongqiong
ZHANG Zhihua
DAI Jiali
QIN Feng
YANG Meicheng
author_facet JIANG Bo
LI Qiongqiong
ZHANG Zhihua
DAI Jiali
QIN Feng
YANG Meicheng
author_sort JIANG Bo
collection DOAJ
description ObjectiveTo investigate the microbial contamination in 54 batches of commercial honey.MethodsAerobic plate colony counts for bacteria and colonies of mould and osmophilic yeasts in honey were determined according to the National Food Safety Standard. The bacteria and fungi in unqualified samples were further identified and analyzed by morphology, MALDI-TOF-MS and large subunit (LSU) rRNA gene sequence.ResultsThree unqualified batches were found. One batch had aerobic plate colony counts exceeding the standard, with a variety of bacteria including Bacillus sp., Paenibacillus sp. and Brevibacillus sp. Two batches had mould counts exceeding the standard. Aspergillus sp was detected in both samples (from the same manufacturer), and the DNA sequence homology was very high, suggesting the mould might come from the same pollution source.ConclusionThere are many kinds of microbial contamination in honey. Manufacturers should strengthen the microbe control in monitoring process to avoid the repeated microbial contamination.
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spelling doaj.art-a58899d38de44ce5a78838dcaec040f82023-01-30T10:51:57ZzhoShanghai Preventive Medicine AssociationShanghai yufang yixue1004-92312022-01-01341778010.19428/j.cnki.sjpm.2022.210871004-9231(2022)01-0077-04Analysis of contaminated microorganisms in commercial honeyJIANG BoLI QiongqiongZHANG ZhihuaDAI JialiQIN FengYANG MeichengObjectiveTo investigate the microbial contamination in 54 batches of commercial honey.MethodsAerobic plate colony counts for bacteria and colonies of mould and osmophilic yeasts in honey were determined according to the National Food Safety Standard. The bacteria and fungi in unqualified samples were further identified and analyzed by morphology, MALDI-TOF-MS and large subunit (LSU) rRNA gene sequence.ResultsThree unqualified batches were found. One batch had aerobic plate colony counts exceeding the standard, with a variety of bacteria including Bacillus sp., Paenibacillus sp. and Brevibacillus sp. Two batches had mould counts exceeding the standard. Aspergillus sp was detected in both samples (from the same manufacturer), and the DNA sequence homology was very high, suggesting the mould might come from the same pollution source.ConclusionThere are many kinds of microbial contamination in honey. Manufacturers should strengthen the microbe control in monitoring process to avoid the repeated microbial contamination.http://www.sjpm.org.cn/article/doi/10.19428/j.cnki.sjpm.2022.21087honeymicrobial contaminationprocess controlidentification and analysis
spellingShingle JIANG Bo
LI Qiongqiong
ZHANG Zhihua
DAI Jiali
QIN Feng
YANG Meicheng
Analysis of contaminated microorganisms in commercial honey
Shanghai yufang yixue
honey
microbial contamination
process control
identification and analysis
title Analysis of contaminated microorganisms in commercial honey
title_full Analysis of contaminated microorganisms in commercial honey
title_fullStr Analysis of contaminated microorganisms in commercial honey
title_full_unstemmed Analysis of contaminated microorganisms in commercial honey
title_short Analysis of contaminated microorganisms in commercial honey
title_sort analysis of contaminated microorganisms in commercial honey
topic honey
microbial contamination
process control
identification and analysis
url http://www.sjpm.org.cn/article/doi/10.19428/j.cnki.sjpm.2022.21087
work_keys_str_mv AT jiangbo analysisofcontaminatedmicroorganismsincommercialhoney
AT liqiongqiong analysisofcontaminatedmicroorganismsincommercialhoney
AT zhangzhihua analysisofcontaminatedmicroorganismsincommercialhoney
AT daijiali analysisofcontaminatedmicroorganismsincommercialhoney
AT qinfeng analysisofcontaminatedmicroorganismsincommercialhoney
AT yangmeicheng analysisofcontaminatedmicroorganismsincommercialhoney