The present invention provides a process for the production of extract of teas comprising the following steps: adding a protease, a tannic acid and an enzyme preparation having more than 20000 U/g of polygalacturonase activity to teas materials and performing an extraction treatment afterwards. According to the process of the present invention, the method can extract cell wall compounds from teas which can not be decomposed and extracted totally in a well-known enzyme treatment extraction. Further, the method is capable of bringing with decomposing cell wall compounds, and the extractable protein is further decomposed into amino acid. The result of the method of the present invention is that the extract of teas having amino acid-rich compounds, sweetness-rich, strong and good flavor can be obtained with high yield.本發明提供一種茶類萃取物之製造方法,其係包括下列步驟:對茶類原料添加蛋白酶、單寧酶及具有20000 U/g以上的聚半乳糖醛酸酶活性的酵素製劑而進行萃取處理。依照本發明之方法,可以萃取以往對於茶葉進行的酵素處理萃取中無法完全分解、萃取的來自於茶葉的細胞壁成分,且可將伴隨細胞壁成分分解而變得可萃取的蛋白質進一步分解成胺基酸,其結果能以高產率獲得富含胺基酸成分且富有甘味、濃味及鮮味的茶類萃取物。
