Furthermore, all colonies growing on Petrifilm LAB Count Plates were confirmed to be LAB, while yeast colonies also formed in MRS medium. The results showed no significant difference in bacterial counts measured by using Petrifilm LAB Count Plates and MRS medium. Bacterial strains isolated from Petrifilm LAB Count Plates were identified by 16S rDNA sequence analysis to confirm the specificity of these plates for LAB. This study compares the abilities of Petrifilm LAB Count Plates and the de Man Rogosa Sharpe (MRS) agar medium to determine the LAB count in a variety of foods and swab samples collected from a food production area. The 3M Petrifilm LAB Count Plates have recently been launched as a time-saving and simple-to-use plate designed for detecting and quantifying LAB. Because of these adverse effects, food companies test for the presence of LAB in production areas and processed foods and consistently monitor the behavior of these bacteria.
The undesirable growth of LAB in food causes spoilage, discoloration, and slime formation. Kanagawa, Satomi Ohshima, Chihiro Takahashi, Hajime Burenqiqige Kikuchi, Misato Sato, Fumina Nakamura, Ayaka Mohamed, Shimaa M Kuda, Takashi Kimura, BonĪlthough lactic acid bacteria (LAB) are used widely as starter cultures in the production of fermented foods, they are also responsible for food decay and deterioration. Įvaluation of Petrifilm Lactic Acid Bacteria Plates for Counting Lactic Acid Bacteria in Food. While the literature documents the universal occurrence of HPC bacteria in soil. The possible health significance of heterotrophic plate count (HPC) bacteria, also know in earlier terminology as standard plate count (SPC) bacteria, in drinking water has been debated for decades. HETEROTROPHIC PLATE COUNT BACTERIA - WHAT IS THEIR SIGNIFICANCE IN DRINKING WATER?
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