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.
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