Purple sweet potato red color is a natural pigment extracted from purple sweet potato.Sweet potato red color whose main components are anthocyanins and flavonoids is widely used in food industry as well as the field of pharmaceutical and high-end cosmetics.

Manufacturers in China generally supply sweet potato red color powder E10-E60 and liquid E10-E30.This pruduct is mainly exported to internation market,such as Japan,South Korea.The demand in domestic market is so small that some enterprise based on domestic market stopped supplying this product.Of course,the reason is also that it nearly got no attention for one year.

The harvest time is mid-October. Most manufacturers began to put into production just after the harvest and then put sweet potato red color in storage.Suppliers are mostly distributed in Shandong,Yunnan and Hunan province and almost have their own raw material site. Yuxi Taihe biological development Co.,Ltd.whose raw material growing area is up to 3000 mu has been dedicated to purple sweet potato extracts since 2007.They can supply sweet potato red color liquid presently of which liquid E10 and E20 are predominately exported to Japan.Thanks to the policy support for western economy,they have price advantage. Shaoyang Fumin Natural Pigment Co.,Ltd. having been devoted to this product for five years can supply liquid E10-E30 now.In addition,purple sweet potato red color is also the featured product of Yunnan Tonghai Yang Natural Products Co., Ltd.and Yunnan Rainbow Bio-tech Co., Ltd.

According to herbridge.com, purple sweet potato red color price is stable presently.The price for liquid E10 and powder E40 is maintained at around 150RMB/kg and 700RMB/kg,respectively.

（Source ：Herbridge.com）

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