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Effects of Calcium and Manganese on Sporulation of Species Involved in Food Poisoning and Spoilage

Overview
Journal Foods
Specialty Biotechnology
Date 2019 Apr 10
PMID 30959957
Citations 8
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Abstract

Spores are resistant against many extreme conditions including the disinfection and sterilization methods used in the food industry. Selective prevention of sporulation of species is an ongoing challenge for food scientists and fermentation technologists. This study was conducted to evaluate the effects of single and combined supplementation of calcium and manganese on sporulation of common pathogenic and food spoilage species: . , . , . and . . Sporulation of vegetative cells was induced on sporulation media supplemented with diverse concentrations of the minerals. Under the various mineral supplementation conditions, the degree of sporulation was quantified with colonies formed by the spores. The results revealed that . and . displayed the weakest sporulation capabilities on media with minimal supplementation levels of calcium and manganese. The lowest sporulation of . and . was observed on media supplemented with the highest level of calcium and low levels of manganese. Depending on effect of supplementation on sporulation, the species were divided into two distinct groups: and ; and and . The information provides valuable insight to selectively reduce sporulation of species undesirable in the food industry.

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