Removal of Arabinose Substituents from Corn Pericarp Arabinoxylan

Autor:	Hiroshi Uyama, Junichi Azuma, Wahyu Dwianto, Yoichi Honda, Tomoki Yoshida
Rok vydání:	2017
Předmět:	Arabinose chemistry.chemical_compound chemistry Arabinoxylan Native state Xylose Partial acid hydrolysis Nuclear chemistry Amorphous solid
Zdroj:	Wood Research Journal. 4:41-45
ISSN:	2774-9320 2087-3840
DOI:	10.51850/wrj.2013.4.1.41-45
Popis:	Partial acid hydrolysis of corn pericarp arabinoxylan (arabinose/xylose (A/X) ratio 0.35 and mean molecular weight of 53.6 × 103) was carried out at pH 1.0 for 1 ~ 6 h at 37 ~ 57 °C to remove arabinose substituents. The removal of arabinose could be described by regression analysis with the method of least squares. Following the regression profile, three kinds of desubstituted arabinoxylans having A/X ratios of 0.25, 0.12 and 0.03 with mean molecular weight values of 37.3 × 103, 15.6 × 103 and 7.2 × 103, respectively, could be prepared. All corn pericarp arabinoxylans were in the amorphous state and the film formability of the native state was lost after the partial acid hydrolysis.
Databáze:	OpenAIRE
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