Chlorogenic Acid and Other Phenolic Compounds in Fourteen Sweet Potato Cultivars

Fourteen cultivars of sweet potatoes were analyzed qualitatively for their phenolic content at harvest and after storage. The phenolic content of the sweet potato cultivars, Centennial, Jasper, Jewel, LO‐323, L3‐243, L3‐151, L4‐62, L4‐112, L4‐131, NC‐702, NC‐718, NC‐719, NC‐345, and V 2 ‐237, was assayed. The qualitative examination of the sweet potato phenolics resulted in the separation and identification of four isomers of caffeolyquinic acid. A fifth compound, which exhibited phenolic acid characteristics, was separated but could not be identified.