甘薯提取物（甘薯紅）

　　甘薯提取物(甘薯紅)是從紫甘薯中提取的花青素混合物?；ㄇ嗨厥侵参镏谐Ｒ姷囊活惿锘钚晕镔|，除了具有抗氧化功能外，還可以在酸性條件下呈現穩定鮮艷的紅紫色，在中性時則變為紫色，堿性較強時變為藍色或綠色。甘薯紅耐熱耐光性都很不錯。

　　典型應用：軟飲料，餅干夾心，果凍，水果軟糖等。

　　使用方法：將適量甘薯紅溶解于pH約為3左右的酸性溶液中，再添加到目標產品中。

　　SWEET POTATO RED is a mixture product of anthocyanins which is extracted from purple sweet potato. Anthocyanins is referring a sort of biologically active substances in plants, not only having anti-oxidation function, but also giving stable bright purple red color naturally. Anthocyanins change color shade from red to purple when the environment changes from acidic to neutral, and finally goes to blue or green when in alkaline environment. Anthocyanins are stable only in acidic environment. Purple sweet red has a good stability to light and heat either.

　　Typical application: soft drinks, cookies fillings, jelly, confectionary, etc.

　　Using method: pick requested amount of Sweet Potato Red and dissolve in acidic water around pH 3, then add the aqueous solution into the end product.