7 0

Improvement of acidogenic fermentation using an acclimatized microbiome

Title
Improvement of acidogenic fermentation using an acclimatized microbiome
Author
전병훈
Keywords
Acidogenic fermentation; Microbiome; Hydrogen; Carboxylic chain elongation; SCC-MCCs
Issue Date
2018-12
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v. 43, no. 49, page. 22126-22134
Abstract
Mixed fruit wastes (FW) are considered valuable organic wastes due to their polysaccharidic content. This study describes utilization of an effective acclimatized microbiome (AM) for enhanced conversion of FW into hydrogen and various value-added byproducts. Microbial acclimatization was used to accelerate two processes, hydrogenogenic acidogenesis and carboxylic chain elongation, which simultaneously produced hydrogen and C4-C7 carboxylates. AM showed 77 mL g(-1) VS of hydrogen yield with 31% higher specific hydrogen production potential (SHPP) compared to 55 mL g(-1) VS with an unacclimatized microbiome (UM). Production of carboxylates was also 19% higher in the AM. Taxonomic analysis of the microbiome revealed the microbial shift to Firmicutes as the most dominant phylum (99%). Clostridium, Hydrogenoanaerobacterium, Paraclostridium, Anaerosalibacter, Tissierella, and Tepidanaerobacter were preeminent genera in the AM, confirming their predominant role in dual processes. Thus, utilization of an AM enhanced the hydrogenogenic acidogenic fermentation of FW with simultaneous carboxylic chain elongation, yielding high-value products. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
URI
https://www.sciencedirect.com/science/article/abs/pii/S0360319918332439?via%3Dihubhttp://repository.hanyang.ac.kr/handle/20.500.11754/121047
ISSN
0360-3199; 1879-3487
DOI
10.1016/j.ijhydene.2018.10.066
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > EARTH RESOURCES AND ENVIRONMENTAL ENGINEERING(자원환경공학과) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE