Antifoaming agent for fermentation, L-amino acid-producing medium and
production process of L-amino acids
    2.
    发明授权
    Antifoaming agent for fermentation, L-amino acid-producing medium and production process of L-amino acids 失效
    消泡剂用于发酵,L-氨基酸生产介质和L-氨基酸的生产过程

    公开(公告)号:US5567606A

    公开(公告)日:1996-10-22

    申请号:US395656

    申请日:1995-02-28

    摘要: Disclosed herein are antifoaming agents for fermentation which include, as active ingredient at least one of (a) a reaction product obtained by adding at least one alkylene oxide to a mixture of a fat and/or oil with a trihydric or still higher polyhydric alcohol, or (b) a compound represented by the following general formula (1): ##STR1## wherein n stands for a number of 2-50, R.sup.1, R.sup.2 and R.sup.3 mean individually a hydrogen atom or an acyl group having 2-31 carbon atoms, x denotes an alkylene group having 2-4 carbon atoms, and m1, m2 and m3 are individually a number of 0-200, an L-amino acid-producing medium containing either one of these components, and a production process for L-amino acids making use of this medium. The use of this antifoaming agent permits the quick, sure and durable suppression of bubbling during incubation, and the overall production of the L-amino acid is significantly improved.

    摘要翻译: 本发明公开了用于发酵的消泡剂,其包括作为活性成分的至少一种(a)通过向脂肪和/或油的混合物中加入至少一种烯化氧与三元或更高级多元醇而获得的反应产物, 或(b)由以下通式(1)表示的化合物:其中n表示2-50的数,R1,R2和R3分别表示氢原子或具有2- 31个碳原子,x表示具有2-4个碳原子的亚烷基,m1,m2和m3分别为0-200的数量,含有这些组分之一的L-氨基酸生产介质和制备方法 对于使用该介质的L-氨基酸。 这种消泡剂的使用允许在孵育期间快速,确定和持久地抑制起泡,并且L-氨基酸的总体生产显着改善。

    Antifoaming agent for fermentation and fermentation production process
using the same
    3.
    发明授权
    Antifoaming agent for fermentation and fermentation production process using the same 失效
    消泡剂的发酵和发酵生产工艺使用相同

    公开(公告)号:US5843734A

    公开(公告)日:1998-12-01

    申请号:US973832

    申请日:1997-12-08

    摘要: An antifoaming agent for fermentation, which comprises (A) a reaction product obtained by the addition polymerization of 50 to 250 moles of ethylene oxide and propylene oxide (the molar ratio of ethylene oxide to propylene oxide=1:1 to 1:4 ) to 1 mole of a mixture composed of an oil or fat and a polyhydric alcohol containing at least three hydroxyl groups; and (B) a fatty acid, an alcohol, a polyoxyalkylene polyhydric alcohol ether, a polyoxyalkylene alkyl ether, a polyoxyalkylene fatty acid ester, a polyoxyalkylene alkyl ether fatty acid ester and/or a polyoxyalkylene polymer. The above antifoaming agent has both foam-breaking effects and foam-inhibiting effects so that it has excellent antifoaming effects and does not adversely affect the fermentation production.

    摘要翻译: PCT No.PCT / JP96 / 01399 Sec。 371 1997年12月8日第 102(e)日期1997年12月8日PCT提交1996年5月24日PCT公布。 公开号WO97 / 00942 日本1997年1月9日发明的消泡剂,其包含(A)通过加成聚合50〜250摩尔环氧乙烷和环氧丙烷得到的反应产物(环氧乙烷与环氧丙烷的摩尔比= 1:1〜 1:4)至1摩尔由油或脂肪组成的混合物和含有至少三个羟基的多元醇; 和(B)脂肪酸,醇,聚氧化烯多元醇醚,聚氧化烯烷基醚,聚氧化烯脂肪酸酯,聚氧化烯烷基醚脂肪酸酯和/或聚氧化烯聚合物。 上述消泡剂具有破泡效果和泡沫抑制效果,因此具有优异的消泡效果,对发酵生产没有不利影响。