151. Development of a Safe Solid-State Microorganism/Biodegradable Polymer Composite for Decomposition of Formaldehyde
- Author
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Satoshi Osawa, Ikuhiro Tanida, and Asami Sakaue
- Subjects
Environmental Engineering ,Materials science ,Polymers and Plastics ,biology ,Composite number ,Formaldehyde ,biology.organism_classification ,Environmentally friendly ,Biodegradable polymer ,Decomposition ,chemistry.chemical_compound ,Bioremediation ,chemistry ,Chemical engineering ,Aspergillus oryzae ,Materials Chemistry ,Degradation (geology) ,Composite material - Abstract
A very safe and environmentally friendly solid-state material for bioremediation was prepared using a combination of Aspergillus oryzae and poly(e-caprolactone) (PCL), a porous biodegradable polymer. The novel material was capable of decomposing 200 ppm formaldehyde solutions to 0 ppm within 7 days. Degradation ability was prolonged by addition of yeast extract-peptone-dextrose medium into the composite; 200 ppm formaldehyde was decomposed to 0 ppm over eight additional decomposition cycles and 100 days. A unique mechanism is proposed where, during PCL degradation, the solid-state composite provides nutrients to A. oryzae.
- Published
- 2014