Purple Sweet Potato Color Purple Sweet Potato Color,a pure natural and water soluble food color produced by our company.is extracted from purple root tuber of edible purple sweet potato (Impomoeabatatas) planted locally. The process is checking,washing,slicing,extracting.filtrating,purifying,concentrating,sterilizing(purple sweet potato color liquid),spraying&drying( purple sweet potato color powderThe mainingredientcyanidin acyl glucoside & peonidin acyl glucoside *Appearance Purple sweet potato color powder is red to purple red.liquid is brown purple,both has the characteristic odor of sweet potato.it can be dissolved in water &alcohol.propylene glycol solution easily.but not in oil.The color of water solution changes when PH is different. When PH is between2-6,the color is red or purple red.The solution color becomesblueand is unstable whenPH is above6.The color of solution can't fade under light for a long time,and also has good resistance to high temperature in an acidic medium. *Applications and Usage Instruction(m compliance with GB2760:Standards for uses of food additives) Purple sweet potato color can be widely used in frozen drinks,imitation wine,fruit and vegetable juice (pulp)beverages,candy,topping,etc. *Usage Reference(in compliance with GB2760:Standards for uses of food additives) For fruit and vegetable juice (pulp)beverages,candy:max usage limit is 0.1g/kg:others:max usage limit is 0.2g/kg Andy Biotech also provides herbal formulas to cosmetics customers, health food customers and food customers around the world. Please contact WhatsApp for more information 0086-15029046321 or email@example.com.