Effect of crystallinity on pretreatment and enzymatic hydrolysis of lignocellulosic biomass based on multivariate analysis. (May 2019)

• Record Type: Journal Article
• Authors: Xu, Huanfei; Che, Xinpeng; Ding, Yu; Kong, Yi; Li, Bin; Tian, Wende
• Is Part Of: Bioresource technology. Volume 279(2019)
• Page Start: 271
• Page End: 280
• Publication Date: 2019-05
• Subjects: Pretreatment -- Lignocellulosic biomass -- Principle component analysis (PCA) -- Partial least square (PLS) -- Crystallinity; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2018.12.096
• Languages: English
• ISSNs: 0960-8524

Abstract

Highlights: Variables of the pretreatment of biomass were analyzed by multivariate analysis. Crystallinity related variables were studied in PCA and PLS for the first time. Crystallinity could greatly influence the efficiency of biomass conversion. Abstract: In this work, multivariate data analysis was employed to correlate variables of pretreatment process of lignocellulosic biomass. Principal component analysis and partial least square methods were performed to get the inner-relationship and data interpretation between the crystallinity and other parameters of mechanical refining-assisted sodium hydroxide pretreatment followed by enzymatic saccharification of corn stover. The PCA and PLS models showed that Sodium hydroxide dosage, mechanical refining treatment, lignin removal rate and crystallinity had close inner-related relationship with the efficiency of pretreatment and enzymolysis. Alkaline reaction and mechanical refining treatment had strong influence on the crystallinity. Multivariate data analysis revealed that pretreated corn stover samples with lower crystallinity were more easily hydrolyzed by enzyme and could get more final reducing sugar. This work could offer a new methodology to get further understanding of effect of crystallinity on the crop residue lignocellulosic biomass conversion process.