ISSN: 0973-7510

E-ISSN: 2581-690X

Research Article | Open Access

Varalakshmi Surendra Raje Urs1, Shylaja Ramlal1, Harsh Vardhan Batra1* , Mahadeva Naika2 and Joseph Kingston Jeyabalaji1

1Food Microbiology Division, Defence Food Research Laboratory, DRDO, Siddhartha Nagar, Mysore – 570 011, Karnataka, India.
2Food Quality Assurance Division, Defence Food Research Laboratory, DRDO, Siddhartha Nagar, Mysore – 570 011, Karnataka, India.
J Pure Appl Microbiol, 2019, 13 (1): 271-280 | Article Number: 5540 | © The Author(s). 2019 

Received: 12/02/2019 | Accepted: 20/03/2019 | Published: 30/03/2019

Biogenic amines (BAs) have attracted increasing attention due to their significance in food safety and quality. The present study aimed at isolation of BAs producing microorganisms from different fermented products, namely kanji, sauerkraut, fish pickle and meat pickle and isolation of BAs degrading bacteria from canine saliva. A total of 63 BAs producing organisms identified among 356 organisms. Initial screening of BAs producing strains was carried out using Moller’s decarboxylase media and 2 BAs degrading organisms identified among 28 organisms. BAs presence is qualitative and quantitative confirmation by TLC and HPLC, respectively, using dansyl derivatized. They were characterized biochemically and identifying using 16S rDNA gene sequencing as Enterobacter hormaechei (18), Enterobacter cloacae (12), Bacillus licheniformis (14), Morganella morganii (11), Lactobacillus sakei (08) and Lactobacillus plantarum (2). Among all isolates, member of the Enterobacteriaceae family yielded the highest amount of putrescine (61.0-244 mg/100 gm),  cadaverine (15.8-154 mg/100 gm), histamine (50-210 mg/100 gm) and least amount of tyramine (3-17.2) followed by Bacillus licheniformis which produced putrescine (58.3 mg/100 gm), cadaverine (83.3 mg/100 gm) and histamine (31.7 mg/100 gm). Lactobacillus sakei produced the highest amount of tyramine (21.2 mg/100 gm) and Lactobacillus plantarum from canine saliva degrade all important BAs histamine (100%), tyramine (100%), cadaverine (28%) and putrescine (67.8%). The result of the present study suggests that the BAs producing organisms are frequently present in fermented products, therefore, may pose a potential risk to human health and Lactobacillus plantarum from canine saliva applied as a potential BAs degradation bacterium in foods.


Biogenic amines, HPLC, Screening, Fermented foods, biogenic amines degradation, canine saliva, Lactic acid bacteria, Enterobacteriaceae.

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© The Author(s) 2019. Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License which permits unrestricted use, sharing, 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.