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Copper and dyes enhance laccase production in gamma-proteobacterium JB
Kanam Malhotra1, Prince Sharma, Neena Capalash
1Department of Microbiology, Panjab University, Chandigarh 160014, India.
Abstract:
Laccase production in gamma-proteobacterium JB was enhanced 13-fold by adding 0.1 mM CuSO(4) 24 h after the onset of growth. Ethidium bromide (2.5 microM), Malachite Green, Phenol Red and Thymol Blue (10 microM each) enhanced laccase production 17-, 19-, 4- and 2-fold, respectively. Among the fourteen aromatic/organic compounds tried, p-aminobenzoic acid and an industrial effluent, from where the organism was isolated, showed 1.2- and 1.26-fold increases in production.
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