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公开(公告)号:US07833747B2
公开(公告)日:2010-11-16
申请号:US11914843
申请日:2006-05-30
申请人: Tetsuya Shiozaki
发明人: Tetsuya Shiozaki
IPC分类号: C12Q1/04
CPC分类号: G01N33/56911 , G01N33/579
摘要: An object of the present invention is to provide a method capable of detecting and quantifying endotoxin in a sample in which endotoxin derived from gram-negative bacteria cannot be accurately detected or quantified by the method described in Commentary of the Japanese Pharmacopoeia Fourteenth Edition, Hirokawa Publishing Co. 2001 B-63. It has been found that the above object can be achieved by performing an endotoxin test using a lysate reagent in which the lysate reagent is added into a sample in the presence of albumin and/or globulin.
摘要翻译: 本发明的目的是提供一种能够检测和定量来自革兰氏阴性细菌的内毒素不能通过日本药典第十四版,广川出版社的评注中记载的方法精确检测或定量的样品中的内毒素的检测方法 Co. 2001 B-63。 已经发现,可以通过使用裂解物试剂进行内毒素试验来实现上述目的,其中在白蛋白和/或球蛋白存在下将裂解物试剂加入到样品中。
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公开(公告)号:US07465827B2
公开(公告)日:2008-12-16
申请号:US11573728
申请日:2005-08-12
申请人: Toru Haga , Tetsuya Shiozaki
发明人: Toru Haga , Tetsuya Shiozaki
IPC分类号: C07C323/00
CPC分类号: C07C319/28 , C07C319/20 , C07C323/52
摘要: The present invention provides a process for producing 2-hydroxy-4-methylthiobutyric acid comprising the following steps (1) to (4): (1): hydrolyzing 2-hydroxy-4-methylthiobutyronitrile in the presence of sulfuric acid, (2): separating the reaction mixture obtained in the step (1) into an oil layer containing 2-hydroxy-4-methylthiobutyric acid and a water layer, (3): concentrating the oil layer obtained in the step (2), and (4) heating the concentrated product obtained in the step (3).
摘要翻译: 本发明提供2-羟基-4-甲硫基丁酸的制备方法,其包括以下步骤(1)至(4):(1):在硫酸存在下水解2-羟基-4-甲硫基丁腈;(2) 将步骤(1)中得到的反应混合物分离成含有2-羟基-4-甲硫基丁酸和水层的油层,(3)浓缩步骤(2)得到的油层,(4) 加热步骤(3)中获得的浓缩产物。
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公开(公告)号:US20070213560A1
公开(公告)日:2007-09-13
申请号:US11573728
申请日:2005-08-12
申请人: Toru Haga , Tetsuya Shiozaki
发明人: Toru Haga , Tetsuya Shiozaki
IPC分类号: C07C319/12
CPC分类号: C07C319/28 , C07C319/20 , C07C323/52
摘要: The present invention provides a process for producing 2-hydroxy-4-methylthiobutyric acid comprising the following steps (1) to (4): (1): hydrolyzing 2-hydroxy-4-methylthiobutyronitrile in the presence of sulfuric acid, (2): separating the reaction mixture obtained in the step (1) into an oil layer containing 2-hydroxy-4-methylthiobutyric acid and a water layer, (3): concentrating the oil layer obtained in the step (2), and (4) heating the concentrated product obtained in the step (3).
摘要翻译: 本发明提供2-羟基-4-甲硫基丁酸的制备方法,其包括以下步骤(1)至(4):(1):在硫酸存在下水解2-羟基-4-甲硫基丁腈;(2) 将步骤(1)中得到的反应混合物分离成含有2-羟基-4-甲硫基丁酸和水层的油层,(3)浓缩步骤(2)得到的油层,(4) 加热步骤(3)中获得的浓缩产物。
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公开(公告)号:US5945563A
公开(公告)日:1999-08-31
申请号:US958335
申请日:1997-10-27
申请人: Katsuharu Imi , Tetsuya Shiozaki
发明人: Katsuharu Imi , Tetsuya Shiozaki
IPC分类号: A23K1/16 , C07C319/20 , C07C319/28 , C07C323/58 , C07C321/00
CPC分类号: C07C319/20 , C07C319/28
摘要: Methionine is produced in an improved yield while reducing the load of waste water disposal by a process including the steps of:(A) adding at least one compound selected from potassium carbonate, potassium bicarbonate and potassium hydroxide to a solution containing 5-(.beta.-methylmercaptoethyl)hydantoin, (B) saturating the resulting solution with carbon dioxide gas and separating deposited methionine while leaving a first filtrate behind,(C) transferring part or whole of the first filtrate to step (D),(D) heating the transferred filtrate, adding a water-miscible solvent to it and saturating it with carbon dioxide gas to deposit methionine and potassium bicarbonate, and separating these deposits while leaving a second filtrate behind, and(E) returning the second filtrate to step (A) if desired.
摘要翻译: 产生甲硫氨酸,同时降低废水处理负荷,包括以下步骤:(A)将至少一种选自碳酸钾,碳酸氢钾和氢氧化钾的化合物加入至含有5-(β- 甲基巯基乙基)乙内酰脲,(B)用二氧化碳气体浓缩所得溶液并分离沉积的甲硫氨酸,同时留下第一滤液,(C)将部分或全部第一滤液转移到步骤(D),(D)加热转移的滤液 向其中加入水混溶性溶剂并用二氧化碳气体饱和以沉积甲硫氨酸和碳酸氢钾,并分离这些沉积物,同时留下第二滤液,(E)如果需要,将第二滤液返回到步骤(A)。
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