Related Experiment Video
Updated: Jul 16, 2026

Tracking Microbial Contamination in Retail Environments Using Fluorescent Powder - A Retail Delicatessen Environment Example
Published on: March 5, 2014
Microbiological quality and safety of fresh mushroom products at retail level in Korea
Boyang Meng1, A-Ra Jang1, Hyunji Song1
1Department of Food and Nutrition, Chung-Ang University, 4726, Seodong-daero, Anseong-si, Gyeonggi-do Republic of Korea.
Abstract:
Several investigations and recalls have demonstrated that Listeria monocytogenes can occur on mushrooms. This study aimed to assess the microbiological quality and safety of four types of edible mushrooms (Flammulina velutipes, Pleurotus ostreatus, Pleurotus eryngii, and Agaricus bisporus) available in the Korean market, and to evaluate the prevalence of Listeria spp., including L. monocytogenes. Results revealed that out of 100 samples tested, 16% (32/200) were positive for Listeria spp. Of the Listeria-positive samples, five strains of Listeria innocua were detected. The total microbial counts ranged from 0.79 to 5.84 log CFU/g, with F. velutipes exhibiting the highest microbial load (mean 5.03 log CFU/g). These findings provide significant data for risk assessment and emphasize the need for continued monitoring of the microbiological safety of edible mushrooms.
Related Concept Videos
Methods for Controlling Microbial Growth
Microbes in Food Production
Microbes in the Production of Fermented Foods
Microbial Spoilage of Food
Sources of Food Contamination
Methods of Controlling Food Spoilage

