Degradation of Polyvinyl Alcohol by a Mixed Microbial Culture Isolated from Paper Mill Treatment

ÇETİN D., ÇITAK S.

GAZI UNIVERSITY JOURNAL OF SCIENCE, vol.27, no.2, pp.839-845, 2014 (ESCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 27 Issue: 2
  • Publication Date: 2014
  • Journal Name: GAZI UNIVERSITY JOURNAL OF SCIENCE
  • Journal Indexes: Emerging Sources Citation Index (ESCI), Scopus
  • Page Numbers: pp.839-845
  • Keywords: polyvinyl alcohol, PVA, mixed culture, biodegradation
  • Gazi University Affiliated: Yes

Abstract

Mixed microbial culture from paper mill treatment system was enriched on polyvinyl alcohol (PVA) medium and its PVA biodegradation capacity was investigated as a function of change in the initial pH values and PVA concentrations. The optimum pH value at 0.75 gl(-1) initial PVA concentration was determined to be 8. PVA biodegradation by mixed microbial culture was investigated at the range of 0.68 - 15.5 g1(-1) initial PVA concentrations. The mixed microbial culture was found to degrade within 5 days 98.6-88.5% of the initial PVA levels which ranged from 0.68 to 1.14 gl(-1). The mixed microbial culture was found to remove more than 90% of the initial PVA concentrations, within the range of 3.13 to 6.64 g1(-1) in 16-25 days of incubation at 35 C-circle.