METHODS OF PROCESSING SUGAR CANE AND SWEET SORGHUM WITH INTEGRATED CONVERSION OF PRIMARY AND LIGNOCELLULOSIC SUGARS

摘要

The current invention concerns methods and products related to the production of alcohol from sugar cane and/or sweet sorghum with integration of 1st and 2nd generation (1G/2G) biorefining, thus comprising the integrated conversion of primary and secondary soft lignocellulosic biomass. In particular, methods of processing sugar cane and/or sweet sorghum feedstock are disclosed, said methods comprising the steps of providing raw juice from the feedstock, recovering a residual bagasse, pretreating the bagasse and mixing it with some quantity of raw juice, and hydrolyzing the pretreated bagasse enzymatically.

主权项

1. A method of processing sugar cane and/or sweet sorghum feedstock comprising the steps of:
(a) extracting raw juice from the feedstock, such as by pressing and/or crushing, and to recover a residual bagasse; (b) pretreating the bagasse from step (a); (c) mixing the pretreated bagasse from step (b) with some quantity of raw juice; and (d) hydrolysing the pretreated bagasse from step (c) by enzymatic hydrolysis using a cellulase enzyme preparation under conditions where the aqueous liquid phase of the hydrolysis mixture comprises at least 5, 10, 15, 20, 25, 30, 40, 50, or 60 g/L g/L sucrose derived from the added raw juice.