Yellow pigment formation, pigment composition, and quality of fresh-cut yam (<i>Dioscorea opposita</i>) slices

Abstract

. Yellow pigments were composed primarily of bisdemethoxycurcumin (73.7%) and two other unknown compounds that were not attributed to microorganisms. Yellow fresh-cut yam exhibited good quality, and the alcohol and ester extracts of yellow yams had higher oxygen radical adsorption capacity and 2,2-diphenyl-1-picrylhydrazyl radical scavenging ability compared to white fresh-cut yam.