The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 10, 2019
Filed:
Feb. 21, 2017
Okinawa Research Center Co., Ltd., Okinawa, JP;
University of the Ryukyus, Okinawa, JP;
Je-Tae Woo, Okinawa, JP;
Yuto Teruya, Okinawa, JP;
Kozue Sasaki, Okinawa, JP;
Toshiaki Teruya, Okinawa, JP;
Aki Yamano, Okinawa, JP;
Kosuke Sueyoshi, Okinawa, JP;
Miki Yamada, Okinawa, JP;
UNIVERSITY OF THE RYUKYUS, Okinawa, JP;
OKINAWA RESEARCH CENTER CO., LTD., Okinawa, JP;
Abstract
An objective of the present invention is to provide a method for producing a nepodin-containing extract containing a high concentration of nepodin with less contaminants present therein thereby being able to be readily carried out on an industrial scale, when compared to the conventional techniques. The objective is solved by A method for producing a nepodin-containingplant extract, the method comprising the following steps (1) to (5): (1) a step of subjecting aplant to an extraction treatment using a nepodin-dissolving solvent to obtain a crudeplant extract; (2) a step of subjecting the crudeplant extract to a water-adding treatment and/or concentration treatment to obtain a solid crudeplant extract; (3) a step of subjecting the solid crudeplant extract to a weak alkali treatment to obtain a weak alkali insoluble product; (4) a step of subjecting the weak alkali insoluble product to a strong alkali treatment to obtain a strong alkali soluble product; and (5) a step of subjecting the strong alkali soluble product to a neutralization treatment to obtain the nepodin-containingplant extract.