发明名称 |
Immobilization of microorganisms on a support made of synthetic polymer and plant material |
摘要 |
A solid support for immobilization of microorganism cells is made of a synthetic polymer such as a polyolefin, in admixture with an organic polymeric plant material such as corn fibers, oat hulls, starch, and cellulose. Preferably, the synthetic polymer is in an amount of about 50-95% wt-% and the plant material is in an amount of about 5-50 wt-%. Preferred polyolefins are polyethylene and polypropylene. The plant material may be a mixture including a plant material that functions as a nutrient to enhance growth of the microorganism on the support. The support may be produced by combining the synthetic polymer and plant material to form a composite, dough-like thermoplastic composition. The composition may be prepared in an extrusion mixer and co-extruded as an extrudate to form a shaped article. The supports are useful for immobilizing living cells of a microorganism to form a biofilm reactor for use in continuous fermentations, in streams for bioremediation of contaminants, and in waste treatment systems to remove contaminants and reduce biochemical oxygen demand levels. |
申请公布号 |
US5595893(A) |
申请公布日期 |
1997.01.21 |
申请号 |
US19940254476 |
申请日期 |
1994.06.06 |
申请人 |
IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC. |
发明人 |
POMETTO, III, ANTHONY L.;DEMIRCI, ALI;JOHNSON, KENNETH E. |
分类号 |
C02F3/10;C12N11/02;C12N11/10;C12P7/56;(IPC1-7):C12P7/40;C02F3/00;C12N11/12;C12N11/08 |
主分类号 |
C02F3/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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