title: Autohydrolysis of bamboo (Dendrocalamus giganteus Munro) culm for the production of xylo-oligosaccharides.
abstract: Bamboo culm (Dendrocalamus giganteus Munro) was treated with hot water in non-isothermal conditions (140, 160, 180 and 200°C) for various reaction times (10, 30, 60 and 120 min) to generate xylo-oligosaccharides in a batch reactor at a solid to liquor ratio of 1:10 g/g. The influence of reaction conditions on yields, compositions and characteristics of the products were evaluated. The maximum yield of xylo-oligosaccharides of 47.49% was achieved at 180°C for 30 min with a relatively low level of xylose (4.73%) and other products (arabinose 0.20 g/L, galactose 0.19 g/L, HMF 0.15 g/L, furfural 0.36 g/L, acetic acid 0.64 g/L and formic acid 0.26 g/L). Higher temperature and/or longer reaction time reduced the yield of oligosaccharides, and enhanced concentrations of monosaccharides and byproducts. The result demonstrated that the yield of xylo-oligosaccharides obtained by autohydrolysis depends on the reaction temperature and time.
authors.affiliation: Northwest A&F University, 712100 Yangling, China.
authors.forename: Xiao
authors.initials: X
authors.lastname: Xiao
authors.forename: Jing
authors.initials: J
authors.lastname: Bian
authors.forename: Xiao-Peng
authors.initials: XP
authors.lastname: Peng
authors.forename: Hui
authors.initials: H
authors.lastname: Xu
authors.forename: Bin
authors.initials: B
authors.lastname: Xiao
authors.forename: Run-Cang
authors.initials: RC
authors.lastname: Sun
mesh_terms: D001089:Arabinose / Q000378:metabolism; D031723:Bambusa / Q000378:metabolism*; D005690:Galactose / Q000378:metabolism; D005965:Glucuronates / Q000096:biosynthesis*; D006358:Hot Temperature; D006868:Hydrolysis; D008970:Molecular Weight; D009005:Monosaccharides / Q000378:metabolism; D009844:Oligosaccharides / Q000096:biosynthesis*; D018547:Plant Stems / Q000378:metabolism*; D058105:Polymerization; D013997:Time Factors; D014990:Xylans / Q000378:metabolism; D014994:Xylose / Q000378:metabolism
chemical_list: D005965:Glucuronates; D009005:Monosaccharides; D009844:Oligosaccharides; D014990:Xylans; C570991:xylooligosaccharide; D014994:Xylose; D001089:Arabinose; D005690:Galactose