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:
Sep. 03, 1985
Filed:
May. 25, 1984
Hing C Tse, Fairfield, OH (US);
The Procter & Gamble Co., Cincinnati, OH (US);
Abstract
The present invention comprises a process for the preparation of shelf-stable tea concentrates and tea powders wherein a tea extract is prepared, acidified, and heated; off-flavor and malodorous compounds are removed from the extract; the extract is cooled and precipitates are removed from it; and flavoring and sweetener are blended with the clarified extract. The acidification and heating steps accelerate acid-catalyzed degradation reactions that normally occur causing the development of off-flavor sulfurous compounds and precipitates. By forcing these components to react, removing the resultant volatile compounds, and separating the precipitates formed, the development of these off-flavors, off-aromas, and precipitates in the resultant tea product is prevented. The tea product is shelf stable and use of preservatives such as antioxidants or antimicrobial agents is not needed.