|국가/구분||United States(US) Patent 등록|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 15 인용 특허 : 1|
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 ...
1. A process for the preparation of a shelf-stable liquid tea mix concentrate having a pH of below about 3.0, a water activity of about 0.75 to about 0.85 and a maximum sulfur content of less than 0.005% comprising: (a) acidifying a tea extract by adding from about 0.05% to about 40% by weight of a tea-acid-water mixture of an edible food grade acid, the tea extract prepared by mixing tea leaves with water in a ratio of from about 1:3 to about 1:50, extracting at from about 100° F. to about 210° F. for about 3 to about 100 minutes and separating the t...