ArticleBiotechnology for biofuels2015
Systematic evaluation of the degraded products evolved from the hydrothermal pretreatment of sweet sorghum stems.
Article in Biotechnology for biofuels, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Article
- Molecular insights into the evolution of woody plant decay in the gut of termites.Science advances · 2023Article
- Valorization of Chinese hickory shell as novel sources for the efficient production of xylooligosaccharides.Biotechnology for biofuels · 2021Article
- Effects of Hydrothermal Pretreatment on the Structural Characteristics of Organosolv Lignin fromPolymers · 2018Article
- Comprehensive evaluation of the liquid fraction during the hydrothermal treatment of rapeseed straw.Biotechnology for biofuels · 2016Article
- Synergetic effect of dilute acid and alkali treatments on fractional application of rice straw.Biotechnology for biofuels · 2016Article
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4 authors.
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Abstract
backgroundConversion of plant cell walls to bioethanol and bio-based chemicals requires pretreatment as a necessary step to reduce recalcitrance of cell walls to enzymatic and microbial deconstruction. In this study, the sweet sorghum stems were subjected to various hydrothermal pretreatment processes (110°C to 230°C, 0.5 to 2.0 h), and the focus of this work is to systematically evaluate the degraded products of polysaccharides and lignins in the liquor phase obtained during the pretreatment process.
resultsThe maximum yield of xylooligosaccharides (52.25%) with a relatively low level of xylose and other degraded products was achieved at a relatively high pretreatment temperature (170°C) for a short reaction time (0.5 h). Higher temperature (>170°C) and/or longer reaction time (>0.5 h at 170°C) resulted in a decreasing yield of xylooligosaccharides, but increased the concentration of arabinose and galactose. The xylooligosaccharides obtained are composed of xylopyranosyl residues, together with lower amounts of 4-O-Me-α-D-GlcpA units. Meanwhile, the concentrations of the degraded products (especially furfural) increased as a function of pretreatment temperature and time. Molecular weights of the water-soluble polysaccharides and lignins indicated that the degradation of the polysaccharides and lignins occurred during the conditions of harsh hydrothermal pretreatment. In addition, the water-soluble polysaccharides (rich in xylan) and water-soluble lignins (rich in β-O-4 linkages) were obtained at 170°C for 1.0 h.
conclusionsThe present study demonstrated that the hydrothermal pretreatment condition had a remarkable impact on the compositions and the chemical structures of the degraded products. An extensive understanding of the degraded products from polysaccharides and lignins during the hydrothermal pretreatment will be beneficial to value-added applications of multiple chemicals in the biorefinery for bioethanol industry.
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