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Effects of bioaugmentation by an anaerobic lipolytic bacterium on anaerobic digestion of lipid-rich waste

Cirne, Dores LU ; Björnsson, Lovisa LU ; Alves, Madalena and Mattiasson, Bo LU (2006) In Journal of Chemical Technology and Biotechnology 81(11). p.1745-1752
Abstract
The effect of bioaugmentation with an anaerobic lipolytic bacterial strain on the anaerobic digestion of restaurant lipid-rich waste was studied in batch experiments with a model waste containing 10% lipids (triolein) under two sets of experimental conditions: (A) methanogenic conditions, and (B) initially acidogenic conditions in the presence of only the lipolytic strain biomass (4 days), followed by methanogenic conditions. The bioaugmenting lipolytic strain, Clostridium lundense (DSM 17049(T)), was isolated from bovine rumen. The highest lipolytic activity was detected at the beginning of the experiments. A higher methane production rate, 27.7 cm(3) CH4(STP) g(-1) VSadded day(-1) (VS, volatile solids) was observed in experiment A with... (More)
The effect of bioaugmentation with an anaerobic lipolytic bacterial strain on the anaerobic digestion of restaurant lipid-rich waste was studied in batch experiments with a model waste containing 10% lipids (triolein) under two sets of experimental conditions: (A) methanogenic conditions, and (B) initially acidogenic conditions in the presence of only the lipolytic strain biomass (4 days), followed by methanogenic conditions. The bioaugmenting lipolytic strain, Clostridium lundense (DSM 17049(T)), was isolated from bovine rumen. The highest lipolytic activity was detected at the beginning of the experiments. A higher methane production rate, 27.7 cm(3) CH4(STP) g(-1) VSadded day(-1) (VS, volatile solids) was observed in experiment A with the presence of the bioaugmenting lipolytic strain under methanogenic conditions. The highest initial oleate concentration, 99% of the total oleate contained in the substrate, was observed in the experiments with the bioaugmenting lipolytic strain under treatment A conditions; the levels of palmitate and stearate were also higher until day 15, indicating that the bioaugmentation strategy improved the hydrolysis of the lipid fraction. In general, the results indicated that degradation of the long chain fatty acids (LCFAs) controlled the digestion process. (c) 2006 Society of Chemical Industry. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
bioaugmentation, biological anaerobic treatment, hydrolysis, inhibition, LCFA, lipid-rich waste
in
Journal of Chemical Technology and Biotechnology
volume
81
issue
11
pages
1745 - 1752
publisher
Wiley-Blackwell
external identifiers
  • wos:000241999100004
  • scopus:33750714400
ISSN
0268-2575
DOI
10.1002/jctb.1597
language
English
LU publication?
yes
id
985530ed-4e72-4050-9291-92dd4e9c26c3 (old id 376996)
date added to LUP
2007-10-01 19:08:31
date last changed
2019-01-06 10:30:46
@article{985530ed-4e72-4050-9291-92dd4e9c26c3,
  abstract     = {The effect of bioaugmentation with an anaerobic lipolytic bacterial strain on the anaerobic digestion of restaurant lipid-rich waste was studied in batch experiments with a model waste containing 10% lipids (triolein) under two sets of experimental conditions: (A) methanogenic conditions, and (B) initially acidogenic conditions in the presence of only the lipolytic strain biomass (4 days), followed by methanogenic conditions. The bioaugmenting lipolytic strain, Clostridium lundense (DSM 17049(T)), was isolated from bovine rumen. The highest lipolytic activity was detected at the beginning of the experiments. A higher methane production rate, 27.7 cm(3) CH4(STP) g(-1) VSadded day(-1) (VS, volatile solids) was observed in experiment A with the presence of the bioaugmenting lipolytic strain under methanogenic conditions. The highest initial oleate concentration, 99% of the total oleate contained in the substrate, was observed in the experiments with the bioaugmenting lipolytic strain under treatment A conditions; the levels of palmitate and stearate were also higher until day 15, indicating that the bioaugmentation strategy improved the hydrolysis of the lipid fraction. In general, the results indicated that degradation of the long chain fatty acids (LCFAs) controlled the digestion process. (c) 2006 Society of Chemical Industry.},
  author       = {Cirne, Dores and Björnsson, Lovisa and Alves, Madalena and Mattiasson, Bo},
  issn         = {0268-2575},
  keyword      = {bioaugmentation,biological anaerobic treatment,hydrolysis,inhibition,LCFA,lipid-rich waste},
  language     = {eng},
  number       = {11},
  pages        = {1745--1752},
  publisher    = {Wiley-Blackwell},
  series       = {Journal of Chemical Technology and Biotechnology},
  title        = {Effects of bioaugmentation by an anaerobic lipolytic bacterium on anaerobic digestion of lipid-rich waste},
  url          = {http://dx.doi.org/10.1002/jctb.1597},
  volume       = {81},
  year         = {2006},
}