Comparison of ultrasound-assisted Fenton reaction and dilute acid-catalysed steam explosion pretreatment of corncobs: cellulose characteristics and enzymatic saccharification. Issue 80 (15th August 2016)

• Record Type: Journal Article
• Authors: Wang, Sujun; Ouyang, Xianhong; Wang, Wenya; Yuan, Qipeng; Yan, Aixia
• Is Part Of: RSC advances. Volume 6:Issue 80(2016)
• Page Start: 76848
• Page End: 76854
• Publication Date: 2016-08-15
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c6ra13125e
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : As an emerging method for lignocellulose pretreatment, the ultrasound-assisted Fenton reaction is not well developed in comparison to the dilute acid-catalysed steam explosion. Abstract : As an emerging method for lignocellulose pretreatment, the ultrasound-assisted Fenton reaction is not well developed in comparison to the dilute acid-catalysed steam explosion. In this work, ultrasound-assisted Fenton reaction and dilute acid-catalysed steam explosion were investigated to evaluate their different effects as the pretreatment methods. The changes of cellulose characteristics were analysed by X-ray diffraction, 13 C CP/MAS solid state NMR, water retention value, Simons' staining and scanning electron microscopy. It was indicated that ultrasound-assisted Fenton reaction removed more lignin and created slightly more accessible area and pores on the surface of the substrate compared with dilute acid-catalysed steam explosion. After 72 h of enzymatic hydrolysis, the conversion of cellulose from ultrasound-assisted Fenton reaction and dilute acid-catalysed steam explosion pretreatment reached 90.34% and 86.80% of the theoretical value, respectively, which indicated ultrasound-assisted Fenton reaction had the same capacity of pretreatment as dilute acid-catalysed steam explosion.