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:
Jun. 27, 1995
Filed:
Aug. 08, 1994
Athula Ekanayake, Cincinnati, OH (US);
Sanford T Kirksey, Cincinnati, OH (US);
Edmund P Pultinas, Jr, Cincinnati, OH (US);
The Procter & Gamble Company, Cincinnati, OH (US);
Abstract
A process for the production of green tea extracts is disclosed comprising the steps of (a) extracting tea materials with an acidified aqueous solution comprising erythorbic acid or ascorbic acid and citric acid and mixtures thereof at specified ratios, (b) separating extract from residual tea material (c) mixing the extract containing solution with gelatin, and (d) separating the precipitates formed under a nitrogen blanket. The resultant tea extracts are stable against precipitation, have reduced bitter and astringent flavors, low levels of polymerized or oxidized flavanols and resist browning. The extracts are especially suitable for use in beverages with added colorant where brown color is not desired.