ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Isolation and Characterization of Hemicelluloses of Corn Hulls

Z. Hromádková and A. Ebringerová

Institute of Chemistry, Slovak Academy of Sciences, SK-842 38 Bratislava

Abstract: Hemicelluloses were prepared from hulls by two-step methods using alternating oxidative-alkaline treatments. The hemicellulose fractions comprised arabinoxylans differing in the amount of coextracted starch. The type of the delignification method afftects the extractibility of the arabinoxylan component, but not its sugar composition. The ¹³C NMR spectra indicate a highly branchedβ-1,4-D-xylan backbone with α-L-Araf and β-D-Xylp units in terminal position of the side chains. The corn hull arabinoxylan represents a highly viscous xylan type.

Full paper in Portable Document Format: 492a97.pdf

Chemical Papers 49 (2) 97–101 (1995)