Fractionation of DMSO-Extracted and NaOH-Extracted Hemicelluloses by Gradient Ethanol Precipitation from Neosinocalamus affinis
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چکیده
منابع مشابه
Structural Characterization of Hemicelluloses from Bamboo Culms (neosinocalamus Affinis)
Dewaxed bamboo culms (Neosinocalamus affinis) were sequentially extracted with distilled water and 70% ethanol at 80 oC for 3 h, 0.2 and 0.5 M NaOH, 70% ethanol containing 0.6 M NaOH, and 1.0 and 2.0 M NaOH at 50 oC for 3 h using a solid to liquid ratio of 1:25 (g/mL). The hemicellulosic fractions obtained were characterized by high performance anion exchange chromatography (HPAEC), gel permeat...
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Ball-milled bamboo (Neosinocalamus affinis) was first treated under ultrasound at 20 C in 95% ethanol solution for 0 to 50 min, dissolved in sodium hydroxide/urea solution (7% NaOH/12% urea) at –12 C, and then extracted with ethanol and dioxane to isolate lignin. The structure of the isolated lignin was characterized with a set of wet chemical and spectroscopic methods, including UV, FT-IR, C N...
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ژورنال
عنوان ژورنال: International Journal of Polymer Science
سال: 2018
ISSN: 1687-9422,1687-9430
DOI: 10.1155/2018/9587042