Journal
BIORESOURCE TECHNOLOGY
Volume 349, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2022.126866
Keywords
Sugarcane bagasse; Xylo-oligosaccharide; Non-isothermal subcritical CO2-assisted seawater autohydrolysis; Glucose; Enzymatic hydrolysis
Funding
- Project for cultivating excellent doctoral dissertation of forestry engineering [LYGCYB202013]
- National Key R&D Program of China [2019YFD1002404]
- Specific research project of Guangxi for research bases and talents [AD18126005]
Ask authors/readers for more resources
High pretreatment temperature is necessary to obtain xylo-oligosaccharides (XOS) with low degree of polymerization (DP). However, traditional isothermal pretreatment for XOS production may increase the generation of xylose and furfural with the reaction time extending (10-100 min). In this study, non-isothermal subcritical CO2-assisted seawater autohydrolysis (NSCSA) was used for the coproduction of XOS with low DP and glucose, resulting in a significantly higher XOS yield and specific surface area compared to traditional methods.
High pretreatment temperature is necessary to obtain xylo-oligosaccharides (XOS) with low degree of polymerization (DP). However, traditional isothermal pretreatment for XOS production may increase the generation of xylose and furfural with the reaction time extending (10-100 min). In this study, non-isothermal subcritical CO2-assisted seawater autohydrolysis (NSCSA) firstly used seawater and CO2 for the coproduction of XOS with low DP and glucose. 51.44% XOS was obtained at 205 degrees C/5 MPa, and low-DP (2-4) XOS accounted for 79.13% of the total XOS. Furthermore, the specific surface area and total pore volume of the pretreated sugarcane bagasse (SCB) were 1.96 m(2)/g and 0.011 cm(3)/g, respectively, increased by 148% and 83% than that of nature SCB. Compared with subcritical CO2 pretreatment, NSCSA is an efficient method for the coproduction of XOS with low DP and glucose through inorganic salts in seawater and H2CO3 formed from CO2.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available