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:
Nov. 07, 2017
Filed:
Mar. 01, 2007
Eizo Maruyama, Kamisu, JP;
Yukiteru Sugiyama, Kamisu, JP;
Kenichi Shikata, Kamisu, JP;
Keiji Shibata, Kamisu, JP;
Hideaki Ueoka, Kamisu, JP;
Eizo Maruyama, Kamisu, JP;
Yukiteru Sugiyama, Kamisu, JP;
Kenichi Shikata, Kamisu, JP;
Keiji Shibata, Kamisu, JP;
Hideaki Ueoka, Kamisu, JP;
Kao Corporation, Tokyo, JP;
Abstract
Provided is a process for producing a tea extract having a high recovery rate of non-polymer catechins, a low caffeine content and an improved taste and color tone. As one embodiment of this invention provides, there is provided a process for producing a purified tea extract by adsorbing a tea extract on a synthetic adsorbent, bringing an aqueous solution of an organic solvent or a basic aqueous solution into contact with the synthetic adsorbent to elute non-polymer catechins, and then bringing the eluate into contact with activated carbon in an aqueous solution of an organic solvent.