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        茶多酚

        產品名稱:茶多酚

        茶多酚

         

        茶多酚是從茶葉中提取的一種多酚類及其衍生物。

        【英文名稱】Camellia sinensis 

        【分 子 式】C17H19N3O

        【分 子 量】281.36

        【性    狀】淺黃或淺棕黃色粉末

        【規    格】80%—98%( UV檢測)

        【特    性】茶多酚具澀味。易溶于水、乙醇、乙酸乙酯,微溶于油脂。對熱、酸較穩定,160℃油脂中30min降解20%。PH值2~8之內穩定,PH≥8和光照下易氧化聚合。遇鐵變綠黑色絡合物。略有吸潮性,水溶液的PH值在3~4之間,在堿性條件下易氧化褐變。

        【包裝貯藏】置于陰涼干燥、避光,避高溫處內用雙層塑料袋紙板桶外包

        能播放的欧美videos同性_手机在线不卡二区中文字幕_a在线亚洲男人的天堂_亚洲另类自拍丝袜第一页

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