1 天前 · 7 Pumpkin pigment : CAROTENE Carotene is an orange pigment that plants use in the process of photosynthesis. Carotene gives carrots their orange color, and it is carrots that give the pigment its name. “Carota” is the Latin for “carrot”. Carotene is found in nature in two structural forms: alpha-carotene and the more common beta-carotene.