| 摘要 |
PURPOSE:To obtain a thickening and shape-retaining agent capable of giving good ductility and malleability, good plastic fluidity, and good shape retentin to products by using a thermally denatured guar gum of a specific swelling property. CONSTITUTION:A thermally denatured guar gum of a swelling degree of 4-10ml, preferably 6-9.5ml, is obtained by heating natural guar gum powder or guar seed split at 80-200 deg.C, preferably 110-180 deg.C, grinding, denaturing to a desired swelling degree, and screening it as needed. The thickening and shape-retaining agent thus obtained is resistant to change in properties even at high temperatures, and its bean odor has been removed. Further, it is not denatured chemically and thus is suitable for foods in particular. The foresaid swelling degree is measured by the procedure in which 0.1g of sample is accurately weighed in a test tube, 10ml of an aqueous solution containing 26% ammonium chloride and 10% zinc chloride are added to the test tube, the test tube is stirred and heated for 5min on a boiling water bath, and then the content is transferred to a 10ml mess cylinder and then allowed to stand at 25 deg.C for 24 hours to measure the volume (ml) of precipitated portion. |
