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:
Apr. 04, 2006
Filed:
Jul. 28, 2004
Hitoshi Kinugasa, Shizuoka, JP;
Kazunori Okanoya, Shizuoka, JP;
Izumi Awano, Shizuoka, JP;
Motomu Takamatsu, Shizuoka, JP;
Hitoshi Kinugasa, Shizuoka, JP;
Kazunori Okanoya, Shizuoka, JP;
Izumi Awano, Shizuoka, JP;
Motomu Takamatsu, Shizuoka, JP;
Ito En, Ltd., Tokyo, JP;
Abstract
The oolong tea beverage is produced by a cold water treatment step of bringing raw material oolong tea leaves into contact with water adjusted at pH about 4 to 6 and 25° C. or lower, eluting and removing about 11 to 26% caffeine from the raw material oolong tea leaves by carrying out solid-liquid separation, and recovering the treated tea leaves; and a hot water extraction step of recovering hot water extract to be a beverage raw material containing nerolidol by extracting the treated tea leaves with hot water at about 90 to 95° C. containing vitamin C and adjusted at pH about 4 to 6 and then carrying out solid-liquid separation. The cold water treatment step enables eluting and removing caffeine and the hot water extraction step enables extracting more nerolidol, which is a flow scent component particular in high quality oolong teas.