Journal article 694 views 122 downloads
Production of volatile fatty acids from slaughterhouse blood by mixed-culture fermentation
Biomass Conversion and Biorefinery
Swansea University Author:
Jersson Placido Escobar
-
PDF | Version of Record
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http:// creativecommons.org/licenses/by/4.0/)
Download (888.94KB)
DOI (Published version): 10.1007/s13399-018-0313-y
Abstract
The volatile fatty acids (VFA) production potential from animal blood and the factors affecting this process were investigated in this study. In order to simulate an industrial process different operation modes, batch, fed batch and semi-continuous, were also evaluated. Due to high ammonia concentra...
| Published in: | Biomass Conversion and Biorefinery |
|---|---|
| ISSN: | 2190-6815 2190-6823 |
| Published: |
Springernature
2018
|
| Online Access: |
Check full text
|
| URI: | https://cronfa.swan.ac.uk/Record/cronfa39328 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Abstract: |
The volatile fatty acids (VFA) production potential from animal blood and the factors affecting this process were investigated in this study. In order to simulate an industrial process different operation modes, batch, fed batch and semi-continuous, were also evaluated. Due to high ammonia concentration in fermentation broth, VFA concentration up to 100 g L-1 was achieved without addition of buffer and methanogen inhibitor. In general, acetic, n-butyric and iso-valeric acids were the most predominant species, although different operational conditions affected the VFA concentration, profile, production rate and yield. The microbial community analysis was conducted on the reactors with the best performance, revealing that 70-90% of the microbial population was from the Clostridiales order with a strong presence from the Sporanaerobacter genus. These results demonstrated the feasibility of a VFA-platform bio-refinery using high-protein wastes as substrate via mixed-culture fermentation under non-sterilised conditions. |
|---|---|
| Keywords: |
Mixed-culture fermentation; volatile fatty acids; slaughterhouse blood; enzymatic hydrolysis, bio-refinery. |
| College: |
Faculty of Medicine, Health and Life Sciences |