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Development of a novel microorganism immobilization method using anionic polyurethane
Author(s) -
Lin YunHuin,
Hwang SzChwun John,
Shih WenChang,
Chen KuoCheng
Publication year - 2005
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.22542
Subject(s) - polyurethane , calcium alginate , polymer , materials science , chemical engineering , emulsion , chemistry , polymer chemistry , organic chemistry , calcium , engineering
Abstract A new microorganism immobilization method involving gelation of anionic polyurethane has been developed. Nontoxic synthetic anionic polyurethane was used, which provides greater mechanical strength than do natural polymers. Similar to the formation of Ca‐alginate gel beads, this method has the advantage of easy preparation. Gel beads are formed only by dropping the anionic polyurethane emulsion into a calcium chloride solution. The feasibility of the proposed immobilization method was tested by an ethanol production process with baker's yeast ( Saccharomyces cerevisiae ). The result verified that the anionic polyurethane entrapped–cell method developed in this study has great potential for a variety of applications such as biological processes and biological wastewater treatment. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 99: 738–743, 2006