Guo, Rui published the artcileMolecular properties and structural characterization of an alkaline extractable arabinoxylan from hull-less barley bran, Safety of (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, the main research area is arabinoxylan hulless barley bran; Arabinoxylan; Hordeum vulgare L. var. nudum Hook. f.; Hull-less barley bran; Methylation analysis; Molecular properties; NMR analysis.
An alk. extractable arabinoxylan (HBAX-25) was fractionated from crude arabinoxylan (HBAX) obtained optimally in hull-less barley (Hordeum vulgare L. var. nudum Hook. f.) bran. Mol. properties and structural characterization of HBAX-25 were investigated thoroughly based on chem. composition of 8.31% (weight/weight) moisture and 87.57% (weight/weight) sugar with specifically few proteins (1.08%, weight/weight) and high arabinoxylans (82.46%, weight/weight). Data from monosaccharide composition indicated that HBAX-25 mainly consisted of arabinose (30.13 mol%) and xylose (51.55 mol%) with A/X ratio of 0.58, representative for arabinoxylans, which coincided with FT-IR results and was corroborated by methylation and NMR analyses, i.e., a relatively low-branched arabinoxylan composed of un-substituted (1,4-linked β-D-Xylp, 71.19%), mono-substituted (1,3,4-linked β-D-Xylp, 14.78%) and di-substituted (1,2,3,4-linked β-D-Xylp, 10.76%) xylose units as backbone via β-(1â?) linkages, with six possible branches or individuals included. Hence, a structural basis of HBAX-25 was established, which could have potential in food and other value-added applications capable of interpreting their physicochem., functional and technol. characteristics.
Carbohydrate Polymers published new progress about Barley bran. 59-23-4 belongs to class alcohols-buliding-blocks, name is (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, and the molecular formula is C6H12O6, Safety of (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal.
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