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1.
公开(公告)号:US20090169699A1
公开(公告)日:2009-07-02
申请号:US12034256
申请日:2008-02-20
申请人: Chon-Ho Yen , Shou-Lun Lee , Mei-Yun Chen , Yin-Shen Lin , Xin-Hui Huang , Chen Hwang Shih , Hsiu-Fen Tai
发明人: Chon-Ho Yen , Shou-Lun Lee , Mei-Yun Chen , Yin-Shen Lin , Xin-Hui Huang , Chen Hwang Shih , Hsiu-Fen Tai
IPC分类号: A23C7/04
CPC分类号: A23J1/202 , A23L33/19 , A23V2002/00 , Y10S530/832 , A23V2250/54246
摘要: Methods for separating casein from soluble proteins in a composition. The method includes: adding a phosphate solution to the composition, mixing to form a mixture, freezing the mixture to obtain a frozen mixture, thawing the frozen mixture to obtain casein-containing aggregates in the mixture, and then centrifuging the mixture to obtain a supernatant traction and a casein-precipitate fraction. The supernatant fraction contains the soluble protein, which may be isolated by subjecting the supernatant fraction to a purification process. The method can be applied to purify a recombinant protein from the milk of a transgenic mammal.
摘要翻译: 将酪蛋白与可溶性蛋白质分离在组合物中的方法。 该方法包括:向组合物中加入磷酸盐溶液,混合形成混合物,冷冻混合物以获得冷冻混合物,解冻冷冻混合物,得到混合物中含酪蛋白的聚集体,然后离心分离得到上清液 牵引和酪蛋白沉淀部分。 上清液部分含有可溶性蛋白质,其可以通过使上清液部分进行纯化过程来分离。 该方法可用于从转基因哺乳动物的乳中纯化重组蛋白。
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2.
公开(公告)号:US07943739B2
公开(公告)日:2011-05-17
申请号:US12034256
申请日:2008-02-20
申请人: Chon-Ho Yen , Shou-Lun Lee , Mei-Yun Chen , Yin-Shen Lin , Xin-Hui Huang , Chen Hwang Shih , Hsiu-Fen Tai
发明人: Chon-Ho Yen , Shou-Lun Lee , Mei-Yun Chen , Yin-Shen Lin , Xin-Hui Huang , Chen Hwang Shih , Hsiu-Fen Tai
IPC分类号: A61K35/14 , A23J1/00 , A23J1/20 , C07K1/00 , B01D21/00 , B01D1/00 , B01D21/01 , A23C9/12 , A23C21/00 , A23B4/12
CPC分类号: A23J1/202 , A23L33/19 , A23V2002/00 , Y10S530/832 , A23V2250/54246
摘要: A method for precipitating casein from a suspension comprising milk is disclosed. The method includes the following steps: adding a phosphate solution to a suspension; mixing the phosphate solution with the suspension to form a mixture having a phosphate concentration greater or equal to 40 mM; freezing the mixture having a phosphate concentration greater or equal to 40 mM to obtain a frozen mixture; and thawing the frozen mixture to obtain casein-containing aggregates in the mixture, in which the phosphate solution is buffered at a pH value of no less than 4.4.
摘要翻译: 公开了一种从包含乳的悬浮液中沉淀酪蛋白的方法。 该方法包括以下步骤:向悬浮液中加入磷酸盐溶液; 将磷酸盐溶液与悬浮液混合以形成具有大于或等于40mM的磷酸盐浓度的混合物; 冷冻具有大于或等于40mM的磷酸盐浓度的混合物以获得冷冻混合物; 并将冷冻的混合物解冻得到混合物中含酪蛋白的聚集体,其中磷酸盐溶液在不低于4.4的pH值下缓冲。
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