4-O-Methylglucuronoxylan Isolated from the Midrib of Nicotiana tabacum |
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Authors: | Shigeru Eda Fumiko Watanabe Kunio Katō |
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Affiliation: | Central Research Institute, The Japan Tobacco and Salt Public Corporation, 6-2 Umegaoka, Midori-kii, Yokohama 227 |
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Abstract: | An acidic xylan from the midrib of Nicotiana tabacum was isolated by alkaline extraction and fractionation on a DEAE-cellulose column. Based on the results of methylation analysis, partial acid hydrolysis and Smith degradation, the acidic xylan was concluded to be composed of a linear backbone of β-(1→4)-linked D-xylopyranosyl residues with approximately every ninth residue carrying a terminal 4-O-methyl-α-D-glucopyranosyluronic acid residue linked as a single side chain by (1→2) linkage. |
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Keywords: | vegetable juice texture property apparent viscosity velocity of bolus juice carrot puree |
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