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    71.
    发明专利
    未知

    公开(公告)号：BRPI0811828A2

    公开(公告)日：2014-12-30

    申请号：BRPI0811828

    申请日：2008-06-18

    Applicant: TORAY INDUSTRIES

    Inventor： ITO MASATERU ,  MINEGISHI SHIN-ICHI ,  SHIMIZU ERI ,  SAWAI KENJI ,  ITO YOHITO ,  SAWAI HIDEKI ,  YAMADA KATSUSHIGE

    IPC: C12P7/56 ,  B01D61/02 ,  B01D61/14 ,  B01D71/56 ,  C12N15/09

    Abstract: Disclosed is a lactic acid production method by separating lactic acid produced in a culture solution by means of the fermentation culture of a microorganism. Specifically disclosed is a lactic acid production method, which comprises: a step (A) of filtering the culture solution through a nano-filtration membrane; and a step (B) of distilling a lactic-acid-containing solution produced in the step (A) under a pressure ranging from 1 Pa to the atmospheric pressure (inclusive) at a temperature ranging from 25 to 200 DEG C (inclusive) to collect lactic acid. The method can effectively remove an inorganic salt dissolved in a fermentation culture solution or contained in the fermentation culture solution in the form of a poorly soluble solid material by a simple manipulation, enables to prevent the racemization or oligomerization of lactic acid during the process of producing lactic acid, and therefore can produce lactic acid in a high yield.

    Method for producing lactate
    73.
    发明专利
    Method for producing lactate 未知

    公开(公告)号：AU2011342241A1

    公开(公告)日：2013-07-11

    申请号：AU2011342241

    申请日：2011-12-12

    Applicant: TORAY INDUSTRIES

    Inventor： IDE MIYUKI ,  ITO MASATERU ,  MUNEGUMI TAKESHI ,  YAMADA KATSUSHIGE

    IPC: C12P7/56

    Abstract: The present invention relates to a method for producing lactate, the method comprising a step of crystallizing an aqueous lactate solution containing formate in a ratio of at least 7.0 wt% relative to the lactate, and recovering the lactate. Crystallizing the aqueous lactate solution containing formate in a ratio of at least 7.0 wt% relative to the lactate makes it possible to stabilize the supersaturation of the lactate, and makes it possible to improve the recovery rate of the lactate.

    METHOD FOR PRODUCING LACTIC ACID AND METHOD FOR PRODUCING POLYLACTIC ACID
    75.
    发明专利
    METHOD FOR PRODUCING LACTIC ACID AND METHOD FOR PRODUCING POLYLACTIC ACID 未知

    公开(公告)号：CA2748354A1

    公开(公告)日：2010-07-01

    申请号：CA2748354

    申请日：2009-12-25

    Applicant: TORAY INDUSTRIES

    Inventor： SAWAI KENJI ,  SAWAI HIDEKI ,  MIMITSUKA TAKASHI ,  ITO MASATERU ,  YAMADA KATSUSHIGE ,  KAWAMURA KENJI ,  MINEGISHI SHIN-ICHI ,  NAKAGAWA IZUMI ,  NAGANO TATSUYA

    IPC: C12P7/56 ,  C07C59/08 ,  C08G63/06 ,  C08G63/08 ,  C12N15/09

    Abstract: Disclosed is a method for producing lactic acid, which comprises (A) a continuous fermentation step wherein a fermentation broth of microorganisms which are capable of lactic acid fermentation is filtrated using a porous membrane having an average pore diameter of 0.01 µm or more but less than 1 µm with a transmembrane pressure difference within a range of 0.1-20 kPa; the filtrate is recovered, while holding or flowing back the unfiltrate to the broth; and a fermentation raw material is added to the broth; (B) a step wherein the filtrate obtained in step (A) is filtrated through a nano-filtration membrane; and (C) a step wherein lactic acid is recovered by distilling the filtrate obtained in step (B) at a pressure not less than 1 Pa but not more than the atmospheric pressure at a temperature not less than 25°C but not more than 200°C. Lactic acid obtained by the method has reduced impurities, and thus a polylactic acid obtained using the lactic acid as a starting material has excellent thermal stability, mechanical strength and hue.

    Lactic acid production method
    76.
    发明专利
    Lactic acid production method 未知

    公开(公告)号：AU2008272239A1

    公开(公告)日：2009-01-08

    申请号：AU2008272239

    申请日：2008-06-18

    Applicant: TORAY INDUSTRIES

    Inventor： SAWAI HIDEKI ,  SAWAI KENJI ,  YAMADA KATSUSHIGE ,  ITO MASATERU ,  SHIMIZU ERI ,  ITO YOHITO ,  MINEGISHI SHIN-ICHI

    IPC: C12P7/56 ,  B01D61/02 ,  B01D61/14 ,  B01D71/56 ,  C12N15/09

    Abstract: Disclosed is a lactic acid production method by separating lactic acid produced in a culture solution by means of the fermentation culture of a microorganism. Specifically disclosed is a lactic acid production method, which comprises: a step (A) of filtering the culture solution through a nano-filtration membrane; and a step (B) of distilling a lactic-acid-containing solution produced in the step (A) under a pressure ranging from 1 Pa to the atmospheric pressure (inclusive) at a temperature ranging from 25 to 200 DEG C (inclusive) to collect lactic acid. The method can effectively remove an inorganic salt dissolved in a fermentation culture solution or contained in the fermentation culture solution in the form of a poorly soluble solid material by a simple manipulation, enables to prevent the racemization or oligomerization of lactic acid during the process of producing lactic acid, and therefore can produce lactic acid in a high yield.

    LACTIC ACID PRODUCTION METHOD
    78.
    发明公开
    LACTIC ACID PRODUCTION METHOD 审中-公开
    MILCHSÄUREPRODUKTIONSVERFAHREN

    公开(公告)号：EP2175029A4

    公开(公告)日：2012-07-04

    申请号：EP08777309

    申请日：2008-06-18

    Applicant: TORAY INDUSTRIES

    Inventor： ITO MASATERU ,  MINEGISHI SHIN-ICHI ,  SHIMIZU ERI ,  SAWAI KENJI ,  ITO YOHITO ,  SAWAI HIDEKI ,  YAMADA KATSUSHIGE

    IPC: C12P7/56 ,  B01D61/02 ,  B01D61/14 ,  B01D71/56 ,  C12N15/09

    CPC classification number: C12P7/56 ,  B01D61/027 ,  B01D71/56 ,  B01D2311/06 ,  B01D2311/18 ,  B01D2311/2669

    Abstract: Disclosed is a lactic acid production method by separating lactic acid produced in a culture solution by means of the fermentation culture of a microorganism. Specifically disclosed is a lactic acid production method, which comprises: a step (A) of filtering the culture solution through a nano-filtration membrane; and a step (B) of distilling a lactic-acid-containing solution produced in the step (A) under a pressure ranging from 1 Pa to the atmospheric pressure (inclusive) at a temperature ranging from 25 to 200 DEG C (inclusive) to collect lactic acid. The method can effectively remove an inorganic salt dissolved in a fermentation culture solution or contained in the fermentation culture solution in the form of a poorly soluble solid material by a simple manipulation, enables to prevent the racemization or oligomerization of lactic acid during the process of producing lactic acid, and therefore can produce lactic acid in a high yield.

    Abstract translation: 公开了通过微生物的发酵培养分离培养液中产生的乳酸的乳酸生产方法。 具体公开的是乳酸的制造方法，其包括：通过纳滤膜对培养液进行过滤的工序（A） 和（B）在步骤（A）中制备的含乳酸的溶液在压力范围为1Pa至大气压（包括端值）在25至200℃（包括端值）的温度下蒸馏至 收集乳酸。 该方法可以通过简单的操作，有效地除去溶解在发酵培养液中的无机盐或发酵培养液中含有的难溶性固体物质，能够防止在生产过程中乳酸的外消旋化或低聚反应 乳酸，因此可以高产率生产乳酸。

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