Process for the liquefaction of sugar beets and chicory roots by enzymatic hydrolysis and the obtained liquid hydrolysate

摘要

PCT No. PCT/FR87/00265 Sec. 371 Date Mar. 2, 1988 Sec. 102(e) Date Mar. 2, 1988 PCT Filed Jul. 7, 1987 PCT Pub. No. WO88/00243 PCT Pub. Date Jan. 14, 1988.A process for the liquifaction of beets or chicory roots which includes washing and grinding the beets or chicory roots to provide a ground product; mixing the ground product with a mixture of enzymes that include SPS-ase, cellulase and cellobiase, as well as an acid so as to provide a pH of about 3 to 5.5; leaving the mixture for about 1 to 6 hours to accomplish a prehydrolysis of the ground product; grinding the prehydrolyzed ground product; allowing the prehydrolyzed ground product to hydrolyze for about 20 to 120 hours; and recovering the liquid hydrolyzed product.