Camellia oleifera dregs protein and modified Zn-Ca-Fe-LDH for enhancing enzymatic saccharification and ethanol production of Alhagi sparsifolia Shap

ABSTRACT

In order to enhance the enzymatic saccharification and ethanol production of Alhagi sparsifolia Shap. (ASP), Camellia oleifera dregs (CD) protein and modified Zn-Ca-Fe-LDH (MH) were investigated. CD protein and MH enhanced the enzymatic conversion of ASP, and they could improve enzyme activity and stabilize yeast. The yields of reducing sugar and ethanol achieved 535.4 mg/g and 165.8 mg/g, respectively. Furthermore, the conversion yields were still high after MH was reused for 4 times repeatedly. Therefore, the utilization of recyclable MH and inexpensive CD protein are promising for enzymatic hydrolysis and fuel ethanol conversion of lignocellulose biomass.

KEYWORDS:

• Enzymatic hydrolysis
• simultaneous saccharification and fermentation
• pretreatment
• Camellia oleifera dregs protein
• modified Zn-Ca-Fe-LDH

Acknowledgments

The authors are grateful for the support provided by the following project: The Open Topic Project, Shaanxi Key Laboratory of Ecological Restoration in Shanbei Mining Area, Yulin University, Shaanxi, China (KFXM201804).

Additional information

Funding

This work was supported by the The Open Topic Project, Shaanxi Key Laboratory of Ecological Restoration in Shanbei Mining Area, Yulin University, Shaanxi, China [KFXM201804].