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1. (WO2018159311) METHOD AND DEVICE FOR RECOVERING USEFUL SUBSTANCE

Pub. No.:    WO/2018/159311    International Application No.:    PCT/JP2018/005317
Publication Date: Sat Sep 08 01:59:59 CEST 2018 International Filing Date: Fri Feb 16 00:59:59 CET 2018
IPC: C12P 7/64
C12M 1/33
C12N 1/12
Applicants: UNIVERSITY OF HYOGO
公立大学法人兵庫県立大学
KYOTO UNIVERSITY
国立大学法人京都大学
Inventors: KASHINO, Yasuhiro
菓子野 康浩
ITOH, Kazuhiro
伊藤 和宏
IFUKU, Kentaro
伊福 健太郎
MAEDA, Kouji
前田 光治
Title: METHOD AND DEVICE FOR RECOVERING USEFUL SUBSTANCE
Abstract:
The method for recovering a useful substance according to one aspect of the present invention comprises: a first step for preparing a culture liquid containing a microalga in which a useful substance is accumulated; a second step for generating microbubbles in the culture liquid prepared above, rupturing the microalga with the thus generated microbubbles and/or during the generation process of the microbubbles, allowing the useful substance extracted from the ruptured microalga to stick to the microbubbles, floating the microbubbles, said microbubbles carrying the useful substance sticking thereto, toward the liquid surface of the culture liquid, and thus forming a bubble section containing the microbubbles, said microbubbles carrying the useful substance sticking thereto, in the liquid surface of the culture liquid; and a third step for recovering the microbubbles from the bubble section and breaking the recovered microbubbles to thereby recover the useful substance thus concentrated.