BILL MORRISSEY,COLM O'BRIEN,EAMON HOGAN,MAGDA HOGAN,PARIKSHIT RAMESHWAR SAWDEKAR,RAMESH BABU PADAMATI
申请号：
BR112019002462
公开号：
BR112019002462A2
申请日:
2017.08.08
申请国别(地区):
BR
年份:
2019
代理人:
摘要：
This invention refers to a process for the production of pure lactic acid from a by -product of whey rich in lactose and minerals, e.G. Exchange of lactose -free milk serum or exchange of concentrated milk serum. The method consists of steps upstream of neutralising the whey by -product of milk with a basic metal hydroxide to form a precipitate comprising calcium and phosphate and separating the precipitate from the by -productOf milk serum to provide a clarified by -product of whey. The clarified whey by -product is fermented by a bacterium capable of bioconversion of lactose in lactic acid to provide a fermentation broth containing a lactic acid salt. In downstream stagesThe fermentation broth is acidified to release lactic acid from the salt of lactic acid, the precipitate from the broth produced by acidification is removed and the acidified fermentation broth is treated to recover pure lactic acid by removing the residual salts and water and, opcio Protein in particular. The invention process produces lactic acid with a purity of 80 -98% and an isomeric purity gt； 98% of L -lactic acid using a process that employs the upstream removal of divalenous salts by chemical precipitation,Bacterial fermentation of the demineralised substrate and minimal downstream processing of the fermentation broth. The methods of the invention can also be used with milk permeated.a presente invenção refere-se a um processo para a produção de ácido láctico puro a partir de um subproduto de soro de leite rico em lactose e minerais, por exemplo, permeado de soro de leite sem lactose ou permeado de soro de leite concentrado. o método compreende etapas a montante de neutralizar o subproduto de soro de leite com um hidróxido de metal básico para formar um precipitado que compreende cálcio e fosfato e separar o precipitado do subproduto de soro de leite para fornecer um subproduto de soro de leite clarificado. o subproduto de soro de leite clarificado é fermentado por uma bactéria capaz de
