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Hemicellulosic polysaccharides were isolated from depectinated cell walls material of seed endosperm of Opuntia ficus-indica fruit by alkaline extraction. Two xylans were isolated, fractionated and characterized. The structural investigations were achieved by sugar and methylation analysis, and were confirmed by 1 H and 13 C NMR. An unusual fucosylglucuronoxylan was characterized and...
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