Bulletin of the Chemical Society of Japan
Online ISSN : 1348-0634
Print ISSN : 0009-2673
ISSN-L : 0009-2673
Constitution of Mucilage from Ulva Conglobata. I. Separation of Rhamnobiose Derivative by Partial Methanolysis
Kiyo Mita
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1969 Volume 42 Issue 12 Pages 3496-3498

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Abstract

Partial methanolysis of the mucilage from Ulva conglobata gave methyl α-L-rhamnoside (29.07%), methyl α-D-xyloside (7.04%) and methyl α-D-glucoside (5.13%). Separation of a new disaccharide (methyl α-L-rhamnobioside, 3.4%) from methanolysate was achieved chromatographically. The biose was attacked by maltase but not by emulsin. The results and infrared spectrum show that the rhamnobiose derivative consists of rhamnose units linked by α-link.

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