Hydrolysis of wheat straw hemicelluloses for maximum xylose extraction

Zhaksylyk Makhatov, Zh.R. YELEMANOVA, Raikhan Aitkulova, Z Narymbayeva, A Dairabayeva, Bibigul Doltayeva, B Torlanova, K. E. Arystanbaev

2021

Full text Open access: Gold Metadata (CSL-JSON)

DOI 10.1088/1755-1315/939/1/012006

Data confidence 70 medium

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Abstract

Abstract The aim of the study is to select reaction conditions for hydrolysis of wheat straw with dilute sulfuric acid for maximum xylose extraction under mild conditions (at atmospheric pressure and temperature of 100°C). The authors found that maximum glucose yield (72.4-77.1 weight % of the initial content of hemicelluloses in wheat straw) is achieved at a concentration of H2SO4 2-3 weight % and the hydrolysis process duration of 5 hours. Analysis of the obtained hydrolysates showed that they contain cellulose (56.8-70.4 weight %), lignin (19.8-28.8 weight %) and hemicelluloses (2.8-15.3 weight %).