R. C. Ray, S. Kar, M. R. SwainDr. R. C. Ray is presently working as Principal Scientist (Microbiology), Central Tuber Crops Research Institute(Reg. Cent.), Bhubaneswar, India. Dr. S. Kar is presently working as Brewing Executive in Sikkim Breweries Ltd. Sikkim, India.Dr. M. R. Swain is working as lecturer at C.E.T Bhubaneswar, India