| 摘要 |
PCT No. PCT/GB89/01452 Sec. 371 Date Jul. 15, 1991 Sec. 102(e) Date Jul. 15, 1991 PCT Filed Dec. 5, 1989 PCT Pub. No. WO90/06343 PCT Pub. Date Jun. 14, 1990.The polysaccharide araban is extracted from sugar beet by a novel modification of the known alkaline extraction process in which, after neutralization of the alkaline liquor, the liquor is ultrafiltered and the retentate is dried to obtain dry araban. Araban, obtained by the above process or otherwise, is incubated with alpha -L-arabinofuranosidase to cleave most or all of the branches from the araban. The debranched araban forms an aqueous gel which has the properties of a fat mimetic and may be used as a fat substitute in foods. Isolated debranched araban derived from crude sugar beet araban is a novel substance. Araban itself may be used in the novel applications of emulsification and encapsulation of oils, for example flavor oils. |
