Patent ID: 8969056
Filing Date: 2015-03-03
Classification: C12P,Y02E

Abstract:
1. A process for integrated production of ethanol and seaweed sap from Kappaphycus alvarezii comprising the steps of: (a) hydrolyzing washed carrageenan rich (b) recovering the sugar rich hydrolysate as obtained in step (a) by filtration or centrifugation in the range of 5000-7000-rpm for 15 minutes to obtain a filtered or centrifuged solution; (c) increasing a reducing sugar concentration in the sugar rich hydrolysate as obtained in step (b) by adding fresh (d) adjusting the pH of the sugar rich hydrolysate as obtained in step (c) in the range of 4.5 to 8.0 using alkali comprising calcium to generate insoluble CaSO (e) separating insoluble CaSO (f) desalting the filtered or centrifuged hydrolysate as obtained in step (e), to remove soluble salts, by electrodialysis; (g) enriching the desalted hydrolysate as obtained in step (f) with a nitrogen source in the range of 0.2-2.0% followed by sterilization at 121° C. for 15 minutes to produce an enriched and sterilized hydrolysate; (h) inoculating the enriched and sterilized hydrolysate as obtained in step (g) with a yeast culture of (i) separating ethanol as obtained in step (h) from fermented broth by distillation; and (j) concentrating ethanol as obtained in step (i) by distillation to obtain concentrated ethanol.