1
|
Li T, Peng H, He B, Hu C, Zhang H, Li Y, Yang Y, Wang Y, Bakr MMA, Zhou M, Peng L, Kang H. Cellulose de-polymerization is selective for bioethanol refinery and multi-functional biochar assembly using brittle stalk of corn mutant. Int J Biol Macromol 2024; 264:130448. [PMID: 38428756 DOI: 10.1016/j.ijbiomac.2024.130448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 02/20/2024] [Accepted: 02/23/2024] [Indexed: 03/03/2024]
Abstract
As lignocellulose recalcitrance principally restricts for a cost-effective conversion into biofuels and bioproducts, this study re-selected the brittle stalk of corn mutant by MuDR-transposon insertion, and detected much reduced cellulose polymerization and crystallinity. Using recyclable CaO chemical for biomass pretreatment, we determined a consistently enhanced enzymatic saccharification of pretreated corn brittle stalk for higher-yield bioethanol conversion. Furthermore, the enzyme-undigestible lignocellulose was treated with two-step thermal-chemical processes via FeCl2 catalysis and KOH activation to generate the biochar with significantly raised adsorption capacities with two industry dyes (methylene blue and Congo red). However, the desirable biochar was attained from one-step KOH treatment with the entire brittle stalk, which was characterized as the highly-porous nanocarbon that is of the largest specific surface area at 1697.34 m2/g and 2-fold higher dyes adsorption. Notably, this nanocarbon enabled to eliminate the most toxic compounds released from CaO pretreatment and enzymatic hydrolysis, and also showed much improved electrochemical performance with specific capacitance at 205 F/g. Hence, this work has raised a mechanism model to interpret how the recalcitrance-reduced lignocellulose is convertible for high-yield bioethanol and multiple-function biochar with high performance.
Collapse
Affiliation(s)
- Tianqi Li
- Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, Biomass & Bioenergy Research Centre, Hubei University of Technology, Wuhan 430068, China; College of Plant Science & Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Hao Peng
- Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, Biomass & Bioenergy Research Centre, Hubei University of Technology, Wuhan 430068, China
| | - Boyang He
- College of Plant Science & Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Cuiyun Hu
- College of Plant Science & Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Huiyi Zhang
- College of Plant Science & Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Yunong Li
- College of Plant Science & Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Yujing Yang
- Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, Biomass & Bioenergy Research Centre, Hubei University of Technology, Wuhan 430068, China; College of Plant Science & Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Yanting Wang
- Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, Biomass & Bioenergy Research Centre, Hubei University of Technology, Wuhan 430068, China; College of Plant Science & Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Mahmoud M A Bakr
- College of Plant Science & Technology, Huazhong Agricultural University, Wuhan 430070, China; Agricultural and Biosystems Engineering Department, Faculty of Agriculture, Damietta University, Damietta 34517, Egypt
| | - Mengzhou Zhou
- Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, Biomass & Bioenergy Research Centre, Hubei University of Technology, Wuhan 430068, China
| | - Liangcai Peng
- Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, Biomass & Bioenergy Research Centre, Hubei University of Technology, Wuhan 430068, China; College of Plant Science & Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Heng Kang
- Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, Biomass & Bioenergy Research Centre, Hubei University of Technology, Wuhan 430068, China; College of Plant Science & Technology, Huazhong Agricultural University, Wuhan 430070, China.
| |
Collapse
|