1. A novel deep eutectic solvent–mediated Fenton-like system for pretreatment of water hyacinth and biobutanol production.
- Author
-
Gong, Lei, Wu, Xingyue, Wang, Yongdan, Zhu, Jie, Wang, Shuo, Xiu, Yuansong, Dong, Jinjun, Xu, Guochao, and Ni, Ye
- Abstract
To facilitate depolymerization of cellulose into fermentable sugars, a novel deep eutectic solvent (DES)–mediated Fenton-like system was developed for efficient removal of hemicellulose and lignin components from lignocellulosic biomass. Water hyacinth (WH) was treated with the newly synthesized DES (choline chloride-ethylene glycol-FeCl
3 ; ChCl-EG-FeCl3 ) at 140 °C for 2 h and then subjected to treatment with 32 mL 30 wt% H2 O2 (Fe3+ : H2 O2 = 1:50 mol·mol–1 ) for 1 h in a Fenton-like reaction system (DES/H2 O2 ). Hydrolysate containing 28 g·L–1 glucose was obtained, which was 19.6- and 1.6-fold of raw WH and WH pretreated by DES, respectively. The DES/H2 O2 -WH hydrolysate was further evaluated for butanol fermentation; no significant inhibition was observed on butanol production, giving butanol titer of 8.3 g·L–1 , along with a yield of 0.18 g·g–1 glucose and a productivity of 0.12 g·L–1 ·h–1 . Remarkably, DES could be recovered and recycled for five consecutive batches. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF