|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||426/3303 ; 426/597 ; 426/546|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 25 인용 특허 : 0|
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...
A process for producing a tea product comprising the steps of: (a) contacting green tea materials with an aqueous acid solution comprising erythorbic acid or ascorbic acid and citric acid and mixtures thereof, at a ratio of tea materials to acid solution, of from about 1:7 to about 1:20, at a temperature of from about 40°C. to about 50°C. for a period of time sufficient to produce an aqueous extract containing from about 0.75% to about 2.5% by weight, soluble solids; the ratio of erythorbic or ascorbic acid to tea material being from about 1:6 to about 1...