The invention relates to derivatives and reduction products of D-glucopyranosyl-alpha(1-5)-d-arabinonic acid, having the general formula: IMAGE (I) wherein X is one of the following groups: -COOM, -COOR', CONH2 or -CH2OH, where M is an alkali metal and R' is an alkyl group; and where R is a hydrogen atom or an acyl group. The compounds of formula (I) include compounds in which the arabinonic acid chain is closed in a lactone ring. A method for producing the derivatives and reaction products is described, and uses therefor are also provided.
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