publication . Article . 2011

ALKALI EXTRACTION OF HEMICELLULOSE FROM DEPITHED CORN STOVER AND EFFECTS ON SODA-AQ PULPING

Heli Cheng; Huaiyu Zhan; Shiyu Fu; Lucian A. Lucia;
Open Access English
  • Published: 01 Feb 2011 Journal: BioResources (issn: 1930-2126, Copyright policy)
  • Publisher: North Carolina State University
Abstract
A biorefinery using the process of hemicellulose pre-extraction and subsequent pulping provides a promising way for the utilization of straw biomass and resolution of problems related to silicon. In this work, hemicellulose was extracted from depithed corn stover with sodium hydroxide solution before soda-AQ pulping. Components of the extracts were quantified by ion chromatography. The parameters (alkali concentration and temperature) affecting hemicellulose pre-extraction were optimized. The main constituent of hemicellulose in corn stover was xylan, which accounted for 18.1% of the depithed raw material. More than 90% of the xylan can be extracted under the op...
Subjects
Medical Subject Headings: food and beveragesstomatognathic diseases
free text keywords: Corn stover, Alkali pre-extraction, Hemicellulose, Silica removal, Soda-AQ pulping, Biotechnology, TP248.13-248.65
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Article . 2011
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