Back to Search
Start Over
Second Generation Bioethanol Production from Soybean Hulls Pretreated with Imidazole as a New Solvent
- Source :
- Fermentation, Vol 9, Iss 2, p 93 (2023)
- Publication Year :
- 2023
- Publisher :
- MDPI AG, 2023.
-
Abstract
- Soybean hulls (SH) are the main industrial waste from soybean processing, representing 5–8% of the whole grain. Imidazole was employed for the hydrothermal pretreatment of SH and further bioethanol production. Different pretreatment temperatures (120 and 180 °C) and times (1 and 3 h) were tested. Lignin removal and glucose yield were significantly influenced by temperature. After 48 h of enzymatic hydrolysis of imidazole-treated SH (120 °C, 1 h), 32.7 g/L of glucose and 9.4 g/L of xylose were obtained. A maximum bioethanol yield of 78.9% was reached after 12 h of fermentation by Saccharomyces cerevisiae using SH enzymatic hydrolysate. Imidazole appears to be a potential alternative to pretreat lignocellulosic wastes such as SH for the production of second-generation biofuels and other biomolecules.
Details
- Language :
- English
- ISSN :
- 23115637
- Volume :
- 9
- Issue :
- 2
- Database :
- Directory of Open Access Journals
- Journal :
- Fermentation
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.f939ddace51040b3bf5cd6d4b085cab1
- Document Type :
- article
- Full Text :
- https://doi.org/10.3390/fermentation9020093