Abstract
Hemicellulose polysaccharides represent a large group of natural renewable polymers, however, their application potency is still low. In our study a hardwood 4-O-methylglucuronoxylan was isolated by alkali peroxide extraction of Fagus sylvatica sawdust and modified into sulfated water soluble derivative (MGXS). Highly sulfated MGXS was characterized by HPLC, FTIR and NMR spectroscopies, and tested in vivo on chemically induced cough reflex and smooth muscles reactivity. Farmacological tests revealed an interesting antitussive activity of MGXS. Comparative tests with drug commonly used in a clinical practice revealed that antitussive activity of MGXS was lower than that of opioid receptor agonist codeine, the strongest antitussive drug. Furthermore, the specific reactivity of airways smooth muscle was not significantly affected by MGXS, indicating thus that the polymer is not involved in the bronchodilation process.
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