fulltext.study @t Gmail

Biodegradation of polyvinyl alcohol by Flammulina velutipes in an unsubmerged culture

Paper ID Volume ID Publish Year Pages File Format Full-Text
21187 43210 2011 5 PDF Available
Title
Biodegradation of polyvinyl alcohol by Flammulina velutipes in an unsubmerged culture
Abstract

ABSTRACTTo examine the biodegradation of polyvinyl alcohol (PVA), Flammulina velutipes (Enokitake) was cultivated in both liquid and quartz sand cultures. After incubation, discoloration of an iodide solution was observed in the filtrate recovered from the quartz sand culture, whereas discoloration was not observed in the filtrate recovered from the liquid culture. Gel permeation chromatography showed that the PVA recovered from the quartz sand culture was depolymerized and yielded low-molecular-weight portions. Infrared and ultraviolet spectrometry indicated that there was formation of carbonyl groups, and NMR analysis showed that the syndiotactic portions of PVA were preferably attacked. Based on these results, an unsubmerged cultivation of F. velutipes was considered suitable for the biodegradation of PVA, probably because the mycelium was sufficiently developed to produce PVA-degrading enzymes.

Keywords
Biodegradation; Flammulina velutipes; Polyvinyl alcohol; Unsubmerged cultivation; Wood-rotting fungi
First Page Preview
Biodegradation of polyvinyl alcohol by Flammulina velutipes in an unsubmerged culture
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Bioscience and Bioengineering - Volume 112, Issue 1, July 2011, Pages 58–62
Authors
, , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us