| 摘要 |
PURPOSE:To obtain the titled substance useful as a viscosity builder, for foods, having specific properties, by crushing the bark, leaves, etc. of Cinnamomum burmanii Blume, swelling them with water, centrifuging them, collecting a supernatant liquid, adding ethanol, etc. to it, collecting a precipitate alone. CONSTITUTION:The bark and/or leaves of Cinnamomum burmanii Blume are crushed, swelled with water, centrifuged to give a supernatant liquid, to which ethanol or acetone is added to deposit a precipitate, which is collected alone. If necessary, the precipitate is swelled with water again, homogenized, and dried to give the desired substance soluble in water, weak acid, and alkali, insoluble in orgaic solvents, having 20-10% galacturonic acid content, 80-90% degree of esterification, 6.0-6.5pH in 0.5wt% aqueous solution, >=1,000cp viscosity, showing absorption of infrared absorption spectrum at 3,500-3,200, 2,910-2,890, 1,740- 1,730, 1,620-1,590, 1,450-1,300, and 1,050-990cm<-1>. |
