Inhibitory effect of pectin from the segment membrane of citrus fruits on lipase activity.

Segment membranes from 4 citrus species selected from 4 sections were treated with water to obtain polysaccharides containing pectin. The extracts, which inhibited pancreatic lipase activity in a concentration-dependent manner, were divided into high molecular weight fractions [molecular weight (M.W.

Hemicellulosic polysaccharides from bamboo shoot cell-walls.

Cell-wall polysaccharides of bamboo shoots were extracted with chelating reagent (CDTA, trans-1,2-cyclohexanediamine-N,N,N',N'-tetraacetic acid), Na(2)CO(3) and KOH solutions. Glycosyl composition and glycosyl linkage analyses showed that the hemicellulose was composed of arabinoxylan, (1-->3, 1-->4)-beta-D-glucan, xyloglucan and glucomannan. (1-->3, 1-->4)-beta-D-glucan was purified by anion-exchange chromatography and xylanase-treatment.