Faculty Member


Swadesh Ranjan Biswas


M.Sc., Ph.D.

Contact Address:
Reader, Department of Botany, Siksha Bhavana, Visva-Bharati, Santiniketan - 731235

swadesh_s2000@visva-bharati.ac.in; swadesh_s2000@yahoo.co.in


Phone numbers (mobile and/or landline):
+91-3463-262751-6 (6 lines) Ext. 382 (O),
+91-9832117635 (M)

Research areas:
The research interests in our group focus on the physiological, biochemical and molecular analysis of nisin production and its regulation in Lactococcus lactis. Our research projects concern different aspects of carbon metabolism in L. lactis, to provide insight into the regulatory mechanisms underlying the biosynthesis of nisin. Apart from this our aim is to develop dairy foods with enhanced safety and shelf life. We also focus on genetic regulation of beta-galactosidase in Lactobacillus sp. The aim is to produce the enzyme constitutively for various biotechnological uses.

Significant publications :
• Mitra S, Mukhopadhyaya B.C. & Biswas S.R. (2011). Potential application of the nisin Z preparation of Lactobacillus lactis W8 in preservation of milk. Letters in Applied Microbiology. 53: 98 – 105(impact factor = 1.640)
• Mitra S, Chakrabartty P.K, and Biswas S.R. 2010. Potential production and preservation of Dahi by Lactobacillus lactis W8, a nisin producing strain. LWT-Food Science and Technology.43: 337 - 342(impact factor = 0.467)
• Mitra S, Mukhopadhyaya B.C. & Biswas S.R. (2009).a foodgrade preparation of nisin in diluted milk by Lactobacillus lactis W8 and its direct application in milk preservation. Journal Food Protection. 72: 2615 – 2617(impact factor = 1.960)
• Mitra S, Chakrabartty P.K, and Biswas S.R. (2007) Production of nisin Z by Lactococcus lactis isolated from Dahi. Applied Biochemistry and Biotechnology. 143 :41-53(impact factor = 1.420)
• Mitra S, Chakrabartty P.K, and Biswas S.R. (2005) Production and characterization of nisin-like peptide produced by a strain of Lactococcus lactis isolated from fermented milk. Current Microbiology. 51(3) 183-187. (impact factor = 1.330)

Number of Ph.D students produced : 1