Abstract
From the heart of the stems of the hollyhockAlthea nudiflora (Lindl.) Boiss., growing on the territory of Southern Kazakhstan we have isolated a polysaccharide (yield 5%) containing residues of glucuronic and galacturonic acids (totalling 42%), and also of glucose, rhamnose, galactose, arabinose, xylose (traces) and mannose (traces). From the bark of the stems of this plant we have isolated a polysaccharide (yield 1.8%) consisting of a branched polymer composed of residues of rhamnose, glucose, and arabinose (22:17:2) and also of glucuronic and galacturonic acids (totalling 30%). In the products of the methylation of this polysaccharide previously reduced at the COOH groups we have established the presence of 2,3,4-tri-O-methylrhamnose, 3,4-di-O-methylrhamnose, 2,3,4,6-tetra-O-methylglucose, 2,6-di-O-methylglucose, and a mixture of 2,3,6-tri-O-methylglucose and 2,3,6-tri-O-methylgalactose (1:10:14:5:7).
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Additional information
V. L. Komarov Botanical Institute, Academy of Sciences of the USSR, Leningrad. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 145–148, March–April, 1980.
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Zaitseva, N.E., Kozhina, I.S. Polysaccharides from the stems ofAlthea nudiflora . Chem Nat Compd 16, 103–106 (1980). https://doi.org/10.1007/BF00638763
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DOI: https://doi.org/10.1007/BF00638763