Purple Sweet Potato

Purple sweet potato colour is extracted from the purple root tuber of purple sweet potato, Impomoes batatas.

Anthocyanin colourings exhibit a reversible change in molecular structure as the pH of solutions change from acidic to basic. This change in structure is characterized by a shift in hue from red to purple to blue as the pH changes from acidic to basic.

Advantages of DDW Purple Sweet Potato

Purple sweet potato colour offers an alternative source of red colouring at low pH with good heat and light stability.