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- Title
Acidogenic fermentation of proteinaceous solid waste and characterization of different bioconversion stages and extracellular products.
- Authors
Kumar, A. Ganesh; Kamatchi, P.; Umashankari, J.; Vidhya, S.; Murthy, P. Sriyutha; Sekaran, G.
- Abstract
The purpose of this study was to investigate hydrolysis of animal fleshing (ANFL), a predominant tannery solid waste and to characterize the acetogenic fermentation products of anaerobic digestion. The acidogenic digestibility of the tannery solid wastes were evaluated up to 120 h using batch anaerobic digestion tests performed under mesophilic condition at 37°C. The degradation of ANFL starts with non-fibrillar proteins and proceedswith fibrillar proteins. The release of aliphatic amino acid in the early stages of hydrolysis (24 h) and followed by aromatic amino acids (24-72 h) were evidenced by HPLC analysis. The maximum production of propionic and valeric acid were observed in 72 h followed by rapid increase in acetic acid in 96 h using GC-MS. Breakdown of ANFL and formations of other metabolites were evidenced by FT-IR and 1H-NMR spectroscopy.
- Subjects
ORGANIC waste recycling; BIOCONVERSION; HYDROLYSIS; FERMENTATION; BIOLOGICAL products; ALIPHATIC compounds; AMINO acids; ORGANIC acids; INDUSTRIAL microbiology
- Publication
Biodegradation, 2008, Vol 19, Issue 4, p535
- ISSN
0923-9820
- Publication type
Article
- DOI
10.1007/s10532-007-9159-x