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Characterization of hemicellulose in Cassava (Manihot esculenta Crantz) stem during xylogenesis.
- Source :
-
Carbohydrate polymers [Carbohydr Polym] 2021 Jul 15; Vol. 264, pp. 118038. Date of Electronic Publication: 2021 Apr 07. - Publication Year :
- 2021
-
Abstract
- Cassava is one of the three major potato crops due to the high starch content in its tubers. Unlike most current studies on the utilization of cassava tubers, our research is mainly focused on the stem of cassava plant. Through nuclear magnetic resonance (NMR), fourier transform infrared spectrometer (FTIR) and other methods, we found that cassava stalk hemicellulose consists of β-1,4 glycosidic bond-linked xylan backbone with a tetrasaccharide reducing end and decorated with methylated glucuronic acid, acetyl groups and a high degree of arabinose substitutions. Hemicellulose content gradually increased from the upper to the lower parts of the stem. The apical part of cassava stalk contained more branched and heterogeneous glycans than the middle and basal parts, and the molecular weight of hemicellulose increased from top to bottom. Our findings will be helpful in understanding of structural variations of cassava hemicellulose during xylogenesis, as well as in better utilization of cassava plant waste in industry.<br /> (Copyright © 2021 Elsevier Ltd. All rights reserved.)
- Subjects :
- Arabinose chemistry
Crops, Agricultural chemistry
Magnetic Resonance Spectroscopy methods
Molecular Weight
Plant Development
Plant Tubers chemistry
Spectroscopy, Fourier Transform Infrared methods
Starch chemistry
Sugars chemistry
Thermogravimetry methods
Xylans chemistry
Manihot chemistry
Plant Stems chemistry
Polysaccharides chemistry
Subjects
Details
- Language :
- English
- ISSN :
- 1879-1344
- Volume :
- 264
- Database :
- MEDLINE
- Journal :
- Carbohydrate polymers
- Publication Type :
- Academic Journal
- Accession number :
- 33910721
- Full Text :
- https://doi.org/10.1016/j.carbpol.2021.118038