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영어

Many marine microorganisms produce biopolymers, and some polymers are economical materials in industry. From their wide diversities in structure and physical properties, we have investigated useful biopolymer. The sulfated exopolysaccharide p-KG03, which is produced by the marine microalga Gyrodinium impudicum strain KG03, exhibited impressive antiviral activity in vitro (EC50 = 26.9 μg/ml) against the encephalomyocarditis virus (EMCV), immunostimulating activity by NK cell activation, and bioflocculant activity for the industrial application. P-21653 (Antarctic marine bacterium Pseudoalteromonas arctica KOPRI 21653) is useful cryoprotective agent of red blood cell and animal cell, and also use for enzyme stabilizer. P-m10356 (marine bacterium Hahella chejuensis strain 96CJ10356) is potential release-control matrix for the oral deliverly system and UV-protective agent. And P-11568 (marine bacterium Alteromonas sp. KCTC10324) is excellent emulsifier. Therefore we introduce some results about diversity of marine biopolymer and its applications.