.beta.-1,3-Glucanpolyol, process for preparation thereof, and utilization thereof
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United States of America Patent
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Aug 9, 1983
Grant Date -
N/A
app pub date -
Aug 29, 1980
filing date -
Aug 29, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
.beta.-1,3-glucanpolyol derived from .beta.-1,3-glucan produced by a .beta.-1,3-glucan-producing strain of the genus Pestalotia, said glucanpolyol having an intrinsic viscosity [.eta.] of about 1 to about 10 and comprising a main chain having as repeating units .beta.-1,3-glucopyranose units of the following formula .fwdarw.3) .beta.-D-Glc (1.fwdarw. wherein Glc represents a glucopyranose residual moiety, and bonded thereto, either side chains of formula (B), or both side chains of formulas (A) and (B) below ##STR1## wherein n represents a number of from 0 to 1, and .fwdarw.3) .beta.-D-Glc (1.fwdarw. represents the above main chain, and R represents a group derived from .beta.-D-glucopyranose of the formula ##STR2## a process for production thereof, and its pharmaceutical use.
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