ZELANG is a factory specilize in natural plant extract and powder, ZELANG select good quality Purple sweet potato, control the heavy mental and pesticide residue of Purple sweet potato powder from the source. Extraction solvent of Purple sweet potato powder produced by ZELANG is deionized water, After washing, broken, extraction, concentration, purification and spray drying process, get purple powder. Purple sweet potato powder has the advantages of low ash content, low ignition residue, low drying loss, good fluidity, good water solubility, etc. In addtion, in the production Purple sweet potato powder process, using the entire pipeline system, avoiding human contact, to ensure that the microorganisms meet the standards of European and American Pharmacopoeia. Purple sweet potato powder widely used in food,Beverage,Supplements,Anti-age cosmetics,Tanning,Daily-use chemical industry. Purple sweet potato powder got the approval of ISO22000:2005 system in 2017(No. 001FSMS1700292). Purple sweet potato powder got the approval of KOF-Kosher in 2016(No.K-0014308). Additional,Purple sweet potato powder pass the SGS audit and FDA registration.