Vol. 5, Issue 4 (2017)
Screening of different novel preservatives for milk Preservation by microbial analysis
Author(s): Mitul Bumbadiya, Richa Singh, Diwas Pradhan, Bimlesh Mann and Sumit Arora
Abstract: In this experiment different preservatives like Hydrogen Peroxide, Methyl and propyl parabenas Kathon, Bronopol, Sodium Omadine, Dowicil, Triclosan and Sodium Azide were used for preservation of milk for analytical purpose. The raw milk samples were collected from livestock research centre, NDRI Karnal. Different preservatives were added with different concentration in raw milk samples and stored at 37oC for 24 hrs. The preservatives were screened on the basis of their germicidal action against various group of microorganism by microbial analysis using pour plate method. The germicidal action of every preservative was analyzed by using Total plate count, Lactic acid bacterial count, Coliform count, Yeast and mould count. As per results, it can be concluded that, the Dowicil (0.02-0.20%), Methyl Paraben (0.05-0.20%), Propyl Paraben (0.05-0.20%), Triclosan (0.07-0.30%) and Hydrogen peroxide (0.05-0.20%) were having poor germicidal action against all groups of microorganisms. While Sodium Omadine (0.02-0.08%), and Sodium Azide (0.02-0.10%) have good germicidal action agaist coliform and yeast and mould count but having poor germicidal action against Total plate count, Lactic acid bacterial count. Bronopol (0.05-0.10%) and Kathon (0.20-0.40%) showed good germicidal action against all groups of microorganisms.
Pages: 673-677 | 986 Views 70 Downloads
How to cite this article:
Mitul Bumbadiya, Richa Singh, Diwas Pradhan, Bimlesh Mann, Sumit Arora. Screening of different novel preservatives for milk Preservation by microbial analysis. Int J Chem Stud 2017;5(4):673-677.