Ellagic acid,developed as an active

Ellagic acid,developed as an active ingredient of quasi-drugs, is also one of the well-known inhibitors of tyrosinase. It was confirmed that ellagic acid inhibits tyrosinase dose-dependently and noncompetitively,unlike arbutin. As shown in Figure 7, tyrosinase activity was reduced with decreasing copper concentration, when mushroom-derived tyrosinase,a metalloprotein containing copper, was incubated with ellagic acid.
Since ellagic acid is known to chelate some specific metal ions, it is presumed to react specifically with the copper located at the active site of the tyrosinase molecule. Ellagic acid is a naturally occurring polyphenol, which is found widely
distributed in plants such as tara, green tea, eucalyptus, and geranium. These two active ingredients are examples of natural-origin compounds being used as skin-whitening agents.

結果 (繁體中文) 2:

鞣花酸，發展成為準藥物的活性成分，也是酪氨酸酶的公知的抑製劑之一。據證實，鞣花酸抑制酪氨酸酶劑量依賴性和非競爭性，不像熊果苷。如圖7所示，酪氨酸酶活性降低以減少銅濃度，當蘑菇衍生的酪氨酸酶，含有銅的金屬蛋白，孵育鞣花酸。
由於鞣花酸是已知螯合某些特定的金屬離子，它被假定為特異性反應與位於酪氨酸酶分子的活性位點的銅。鞣花酸是一種天然存在的多酚，其發現廣泛
分佈於植物如塔拉，綠茶，桉樹，天竺葵和。這兩種活性成分是被用作皮膚美白劑的天然產化合物的例子。

結果 (繁體中文) 3:

鞣花酸，作為准藥物活性成分，也是一個著名的酪氨酸酶抑制劑。據證實，鞣花酸抑制酪氨酸酶的劑量依賴性和非競爭性，與熊果苷。如圖7所示，酪氨酸酶的活性隨銅濃度降低，當蘑菇酪氨酸酶蛋白的來源，一種含銅，與鞣花酸孵育。
自鞣花酸是已知的螯合某些金屬離子，它被假定為與銅位於酪氨酸酶分子的活性位點特异性反應。鞣花酸是一種天然存在的多酚，這是廣泛分佈在植物
如塔拉，綠茶，桉樹，和天竺葵。這2種活性成分是天然來源的化合物被用作皮膚增白劑的例子。