1 23 Applied Biochemistry and Biotechnology Part A: Enzyme Engineering and Biotechnology ISSN 0273-2289 Volume 167 Number 5 Appl Biochem Biotechnol (2012) 167:1220-1234 DOI 10.1007/s12010-012-9553-7 Production and Characterization of Violacein by Locally Isolated Chromobacterium violaceum Grown in Agricultural Wastes Wan Azlina Ahmad, Nur Zulaikha Yusof, Nordiana Nordin, Zainul Akmar Zakaria & Mohd Fazlin Rezali