METHOD FOR FILTERING MICROBIAL CULTURE SOLUTION USING MEMBRANE MODULE

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United States of America Patent

APP PUB NO 20190118145A1
SERIAL NO

16089999

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention relates to a method for filtering a microbial culture solution using a membrane module, said method comprising four stages including (a) cross-flow filtration of the microbial culture solution, (b) rinsing with water, (c) washing with a chemical solution and (d) rinsing with water, wherein: the filtrate passing through the membrane module in the cross-flow filtration has a total sugar concentration of 1,000-100,000 mg/1 inclusive and a protein concentration of 50-1,000 mg/l inclusive; the aforesaid stage (c) comprises step (c-1) for washing with a chemical solution containing a hypochlorite and a nonionic surfactant; and the aforesaid stages (a) to (d) are repeated in this order.

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Patent Owner(s)

Patent OwnerAddress
TORAY INDUSTRIES INCTOKYO JAPAN TOKYO METROPOLIS

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
KANAMORI, Satoko Shiga, JP 21 81
KOBAYASHI, Atsushi Shiga, JP 449 5864
NISHIO, Aya Shiga, JP 8 19
SHIMURA, Fumi Shiga, JP 2 1
SHIMURA, Shun Shiga, JP 13 32

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