Efficient succinic acid production using a biochar-treated textile waste hydrolysate in an in situ fibrous bed bioreactor
- Authors
- Li, Xiaotong; Zhang, Ming; Luo, Jiewen; Zhang, Shicheng; Yang, Xiao; Igalavithana, Avanthi Deshani; Ok, Yong Sik; Tsang, Daniel C. W.; Lin, Carol Sze Ki
- Issue Date
- 15-Sep-2019
- Publisher
- ELSEVIER
- Keywords
- Biochar; In situ fibrous bed bioreactor; Succinic acid; Textile waste; Yarrowia lipolytica
- Citation
- BIOCHEMICAL ENGINEERING JOURNAL, v.149
- Indexed
- SCIE
SCOPUS
- Journal Title
- BIOCHEMICAL ENGINEERING JOURNAL
- Volume
- 149
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/62864
- DOI
- 10.1016/j.bej.2019.107249
- ISSN
- 1369-703X
- Abstract
- Textile waste contains biodegradable fraction which can be used as an alternative feedstock for succinic acid production. The feasibility of bioconversion of biochar-treated textile waste hydrolysate into succinic acid was evaluated. A substrate loading of 9% was applied to hydrolyze mixed textile waste and the resultant glucose-rich hydrolysate with dyestuff was collected after enzymatic hydrolysis. Biochar from different pyrolysis temperatures (400-700 degrees C) and different dosages of the selected biochar (1-5%) were applied to remove colorants. The results showed that biochar had a good performance at a dosage of 2 w/w % on removal of colorant inhibitors. There was no negative effect observed during the subsequent fermentation. After optimization of fermentation media in shake flasks, the resultant succinic acid titer reached 19.6 g/L with a SA yield of 0.76 g/g, supple. mented with 30 g/L tryptone. The in situ fibrous bed bioreactor (isFBB) can further improve SA titer, up to 28.8 g/L corresponding to a yield of 0.61 g/g without pH control. Furthermore, a shorter lag phase during succinic acid fermentation in isFBB was observed. It can be concluded that a novel textile waste-based biorefinery approach for succinic acid production aided by biochar sorption was successfully developed.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Life Sciences and Biotechnology > Division of Environmental Science and Ecological Engineering > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholar.korea.ac.kr/handle/2021.sw.korea/62864)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.