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  • Title: Enhancement of enzymatic saccharification of sugarcane bagasse by liquid hot water pretreatment.
    Author: Hongdan Z, Shaohua X, Shubin W.
    Journal: Bioresour Technol; 2013 Sep; 143():391-6. PubMed ID: 23819975.
    Abstract:
    Lignocellulosic biomass can be utilized to produce promising biofuels. In this study, liquid hot water pretreatments were performed to break the intricate structure of sugarcane bagasse, which resists the enzyme accessibility to cellulose. The effects of temperatures and times on the hemicellulose degradation (including the yields of pentoses and hexoses, the proportion of monomers and oligosaccharides, as well as limited inhibitors) and cellulose enzymatic digestibility were evaluated. The results indicated that the maximum xylose yields (combined 3.85 g xylose and 13.21 g xylo-oligosaccharides per 100 g raw material) in prehydrolyzate liquid were obtained at 180 °C and 30 min. Due to the effective removal of hemicellulose, the maximum glucose yield in enzyme hydrolyzate reached 37.27 g per 100 g raw material, representing 90.13% of glucose in the sugarcane bagasse. The maximal total sugars yield (combined prehydrolyzate and enzymatic hydrolyzate) were 53.65 g based on 100 g raw material.
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