US EPA

8176545 

Journal Article 

Production of red pigment from marine bacterium utilizing colloidal chitin 

Ryu, BH; Kim, MJ 

2000 

28 

5 

264-269 

Korean 

This study is that of providing a fairly practical guide to the use of natural pigment in food industry. A strain isolated from marine resources was carded out the production of red pigment. The pigment showed UV absorption maxima at 520 and 550 nm. The color intensity in aqueous solution was fairly stable in the ranges of pH 5-8. The strain KS-97 produced a maximum yield of red pigment at 25°C for 72 hrs with pH 7.0. The strain KS-97 was identified a Bacillus sp. based on morphological and biochemical characterization such as a rod form, motility, spore formation, Gram positive and catalase production. The production of red pigment indicated that the strain KS-97 utilized at high concentration of colloidal chitin as carbon sources obtained maximum yield of red pigment at 25°C for 72 hrs. The highest production of red pigment was observed with cultivation in medium containing 20% colloidal chitin, 2.5 g polypeptone, 2.5 g yeast extract, 1.0 g KH2PO4, 0.01 g MgSO4·6H2O, 0.01 g ZnSO4, 0.01 g MnSO4 (per 1). 

Bacillus sp; Colloidal chitin; Red pigment