Extraction solvents derived from oil for alcohol removal in extractive fermentation
    53.
    发明授权
    Extraction solvents derived from oil for alcohol removal in extractive fermentation 有权
    萃取溶剂中的萃取溶剂,用于萃取发酵中的酒精去除

    公开(公告)号:US08476047B2

    公开(公告)日:2013-07-02

    申请号:US13692254

    申请日:2012-12-03

    IPC分类号: C12P7/02 C12P7/16

    摘要: In an alcohol fermentation process, oil derived from biomass is hydrolyzed into an extractant available for in situ removal of a product alcohol such as butanol from a fermentation broth. The glycerides in the oil can be catalytically (e.g., enzymatically) hydrolyzed into free fatty acids, which form a fermentation product extractant having a partition coefficient for a product alcohol greater than a partition coefficient of the oil of the biomass for the product alcohol. Oil derived from a feedstock of an alcohol fermentation process can be hydrolyzed by contacting the feedstock including the oil with one or more enzymes whereby at least a portion of the oil is hydrolyzed into free fatty acids forming a fermentation product extractant, or the oil can be separated from the feedstock prior to the feedstock being fed to a fermentation vessel, and the separated oil can be contacted with the enzymes to form the fermentation product extractant. The fermentation product extractant can be contacted with a fermentation broth for in situ removal of a product alcohol.

    摘要翻译: 在酒精发酵过程中,将来自生物质的油水解成可从发酵液中原位除去产物醇如丁醇的萃取剂。 油中的甘油酯可以催化(例如,酶促)水解成游离脂肪酸,其形成产物醇的分配系数大于产物醇的生物质油的分配系数的发酵产物萃取剂。 由酒精发酵方法的原料得到的油可以通过使包含油的原料与一种或多种酶接触来水解,由此至少一部分油被水解成形成发酵产物萃取剂的游离脂肪酸,或者油可以是 在原料进料到发酵容器之前与原料分离,并且分离的油可以与酶接触以形成发酵产物萃取剂。 发酵产物萃取剂可与发酵液接触,用于原位除去产物醇。