Vet World Vol.14 March-2021 Article-15
Research Article
Veterinary World, 14(3): 656-660
https://doi.org/10.14202/vetworld.2021.656-660
Bacteriological quality of raw milk marketed in and around Guwahati city, Assam, India
2. Department of Livestock Products Technology, College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati, Assam, India.
3. Department of Microbiology, College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati, Assam, India.
4. Department of Livestock Production and Management, College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati, Assam, India.
Background and Aim: Milk is a highly perishable commodity, which is subjected to various types of contamination right from the farm level to the consumers' table. This study aimed to assess the quality of raw milk sold in and around Guwahati city based on the microbial load.
Materials and Methods: A total of 200 raw pooled milk samples collected from 25 different locations in and around Guwahati city were subjected to quality evaluation based on the methylene blue reduction test (MBRT), standard plate count, and coliform count as per the standard procedure.
Results: Out of the 200 samples evaluated, more than 50% of them were graded as poor to very poor quality based on the MBRT results. None of the samples could be graded as excellent quality and only 14.5% were graded as good quality. The standard plate count and coliform count of all the raw milk samples were found to be significantly higher than the legal standard. A highly significant (p<0.01) difference was observed for standard plate count and coliform count among the different locations in and around Guwahati city.
Conclusion: From the present study, it could be inferred that raw milk sold in most parts of Guwahati city do not confer to the legal microbiological standard and may pose a high risk of milk-borne illness among consumers of the city, which needs a systematic series of actions to be implemented properly. Keywords: coliform count, methylene blue reduction test, raw milk, total viable count.
Keywords: coliform count, methylene blue reduction test, raw milk, total viable count.
How to cite this article: Kakati S, Talukdar A, Hazarika RA, Raquib M, Laskar SK, Saikia GK, Hussein Z (2021) Bacteriological quality of raw milk marketed in and around Guwahati city, Assam, India, Veterinary World, 14(3): 656-660.
Received: 05-07-2020 Accepted: 18-01-2021 Published online: 18-03-2021
Corresponding author: Masuk Raquib E-mail: masuk.raquib@aau.ac.in
DOI: 10.14202/vetworld.2021.656-660
Copyright: Kakati, et al. This article is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http:// creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.