PROCESS FOR PRODUCING SUGAR SOLUTION

    公开(公告)号:CA2875083A1

    公开(公告)日:2013-12-12

    申请号:CA2875083

    申请日:2013-06-04

    Abstract: The present invention provides a process for producing a sugar solution having improved fermentability from cellulosic biomass as a raw material. This process for producing a sugar solution comprises: a step in which an alkali is added to a cellulosic-biomass-derived concentrated sugar solution to regulate the pH thereof to 7 or higher, thereby precipitating insoluble substances containing at least magnesium; and a step in which the resulting mixture is filtered with a microfiltration membrane to remove the insoluble substances and obtain a sugar solution as the penetrant.

    METHOD OF MANUFACTURING SUGAR SOLUTION

    公开(公告)号:CA2842151A1

    公开(公告)日:2013-02-07

    申请号:CA2842151

    申请日:2012-07-27

    Abstract: By filtering, through an ultrafiltration membrane of a 600-2000 fraction molecular weight, an aqueous sugar solution obtained by hydrolyzing a cellulose-containing biomass, removing fermentation inhibitors on the permeated side and recovering the sugar solution from the un-permeated side, this method is capable of manufacturing a sugar solution with an extremely low amount of fermentation inhibitors.

    METHOD FOR MANUFACTURING SUGAR SOLUTION

    公开(公告)号:CA2831542A1

    公开(公告)日:2012-10-04

    申请号:CA2831542

    申请日:2012-03-28

    Abstract: The problem addressed by the present invention is manufacturing a sugar solution in which the amount of fermentation inhibiting substances is extremely low. The present invention is a method that concentrates an aqueous solution of sugar derived from cellulose using a nano filtering membrane and/or a reverse osmosis membrane and is a method for manufacturing a sugar solution in which an anionic polymer is added and fermentation inhibiting substances are eliminated on the permeated side of a nano filtration membrane and/or a reverse osmosis membrane.

    Hollow fiber membrane module for use in production of chemical substance, and process for production of chemical substance

    公开(公告)号:AU2010319104A1

    公开(公告)日:2012-05-17

    申请号:AU2010319104

    申请日:2010-11-10

    Abstract: Disclosed is a hollow fiber membrane module (1) for use in the production of a chemical substance, which can be used in the continuous fermentation that comprises filtrating a fermentation culture of a microorganism or a cultured cell through a hollow fiber membrane, collecting a chemical substance from a filtrate, retaining a concentrated solution in the fermentation culture or refluxing the concentrated solution, and further adding a fermentation raw material to the fermentation culture. In the hollow fiber membrane module (1), multiple hollow fiber membrane bundles are accommodated in a tubular case, at least one end part of each of the hollow fiber membrane bundles is fixed onto the tubular case in such a manner that the end surface of each of the hollow fiber membranes is opened by means of a hollow-fiber-membrane-bundling material, and the hollow-fiber-membrane-bundling material comprises a synthetic resin that exhibits a hardness retention rate of 95% or more after the material is brought into contact with a saturated water vapor at 121°C for 24 hours. The hollow fiber membrane module (1) can keep substance productivity at a high level and can be used in the production of a chemical substance by a sterilizable continuous fermentation method.

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