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Research Progress in the Determination of Uronic Acid of Hemicellulose Degradation Product
Received:March 05, 2021  
DOI：10.11980/j.issn.0254-508X.2021.06.012
Key Words:hemicelluose  4-O-methylglucuronic acid  hexene uronic acid
Fund Project:国家自然科学基金资助项目（22078114）。
Author NameAffiliationPostcode
LUO Min State Key Lab of Pulp and Paper Engineering， South China University of Technology， Guangzhou， Guangdong Province， 510640 510640
FU Shiyu State Key Lab of Pulp and Paper Engineering， South China University of Technology， Guangzhou， Guangdong Province， 510640 510640
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Abstract:Lignocellulose plant is an important natural resources for manufacturing material， energy， and chemicals， the fractionation of cellulose， lignin， and hemicellulose is a hot topic being concerned for years. Exploring the degradation rules of hemicellulose and the change of its structure is of great significance to achieve efficient separation of the plants’ three main components. This paper expounded the determination methods of the main degradation products of hemicelluloses during alkaline cooking process， i.e.， 4-O-methylglucuronic acid （meGlcA） and its derivative hexane uronic acid （HexA）. Accurately determining the content of meGlcA would help improve the pulping process and the purity of separated fibers and the quality of resultant paper， so as to achieve high-value application of cellulose. HexA affects the consumption of bleaching chemicalsin bleaching process， its determination could provide helpful message to bleaching stage.
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