| 摘要 |
Novel two types of beta -agarases derived from a marine bacterium screened and isolated from marine sediment, include beta -agarase A of a molecular weight of about 90,000 and beta -agarase B of a molecular weight of about 98,000. beta -agarase A has an enzyme activity of hydrolyzing agarose and porphyran mainly into neoagarotetraose and neoagaro hexaose. beta -agarase B has an enzyme activity of hydrolyzing agarose and porphyran mainly into neoagarobiose. These novel two types of beta -agarases are used for preparing an oligosaccharide and for preparing the protoplast of seaweed cells. |
