Biodiversity, spoilage capacity and heat resistance of mesophilic aerobic spores isolated from milk powders marketed in Algeria

Biodiversity, spoilage capacity and heat resistance of mesophilic aerobic spores isolated from milk powders marketed in Algeria

An analysis of milk powder isolates based on RAPD‐M13 and 16SrRNA sequencing has been conducted. Phylogenetic groups were distinguished by panC gene sequencing. An evaluation of the enzymatic activity and heat resistance of representative isolates has also been made. Molecular analysis revealed 17 g...

Full description

Saved in:
Bibliographic Details
Published in:International journal of dairy technology Vol. 73; no. 4; pp. 771 - 780
Main Authors: Benahmed, Meryem, Leguerinel, Ivan, Moussa‐Boudjemaa, Boumedine
Format: Journal Article
Language:English
Published: Oxford Blackwell Publishing Ltd 01-11-2020
Subjects:
Aerobic capacity
Bacillus
Bacillus cereus
Biodiversity
Enzymatic activity
Enzyme
Gene sequencing
Heat resistance
Mesophilic
Milk
Milk powder
PanC gene
Phylogenetics
Phylogeny
Proteolysis
Spoilage
Spores
Spore‐formers
Thermal resistance
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An analysis of milk powder isolates based on RAPD‐M13 and 16SrRNA sequencing has been conducted. Phylogenetic groups were distinguished by panC gene sequencing. An evaluation of the enzymatic activity and heat resistance of representative isolates has also been made. Molecular analysis revealed 17 groups. Bacillus cereus groups II, III and IV were the main phylogenetic groups. Bacillus cereus and B. subtilis groups demonstrated high proteolytic activity along with D95°C values ranging from 1 to 9 min and z‐values between 6.5 and 18.6 °C.
ISSN:1364-727X
1471-0307
DOI:10.1111/1471-0307.12715