| 摘要 |
<p>PURPOSE:To enable the firm immobilizaiton of microorganism (group) in a carrier having arbitary shape, by mixing the microorganism (group) with an aqueous solution of polyvinyl alcohol, absorbing the solution in a porous carrier and gelatinizing the solution with saturated aqueous solution of boric acid. CONSTITUTION:3-40wt% polyvinyl alcohol having a polymerization degree of 500-3,000 and a saponification degree of >= 70% is mixed homogeneously with 1-30wt% microorganism (group) under stirring to attain a final PVA concentration of 5-20wt%. The mixture is absorbed in a porous carrier, and immersed in saturated aqueous solution of boric acid for about 1-50hr to effect the gelatinization of the aqueous solution of PVA, the formation of a monodiol- type polymer lattice of PVA-H3BO3, and the immobilization of the microorganism in the carrier into said lattice.</p> |
