Yellow pigments of Dioscorea bulbifera

Abstract

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Carotenoid profiling of tropical root crop chemotypes from Vanuatu, South Pacific

“…On the other hand, our X. sagittifolium cultivars displayed no detectable amount of all-trans-b-carotene, contrary to those analyzed by Bradbury and Holloway (1988). Some D. bulbifera cultivars exhibited small quantities of all-trans-b-carotene, whereas it was not detected by Martin et al (1974). Cyrtosperma merkusii (Araceae) studied by Englberger et al (2008) is important for health in the Pacific.…”

Carotenoid profiling of yams: Clarity, comparisons and diversity

“…The extraction method utilised up to 20-fold less raw material and less than half the solvent of the commonly applied modified HarvestPlus approach (Champagne et al, 2010;Ferede et al, 2010;Ukom et al, 2014), whilst attaining profiles which matched some of those previously recorded, with many xanthophyll esters, e.g., D. alata (Champagne et al, 2010), D. bulbifera (Martin et al, 1974) and D. cayennensis (Martin & Ruberte, 1975) and stereoisomers present. The scaled-down extraction allowed increased throughput with easier sample handling and, consequently, the relatively long run-time of the HPLC was the limiting factor for the speed of screening.…”

“…However, studies on other varieties of the species have found low carotenoid content (Ukom et al, 2014). The same holds true for the species D. alata and D. bulbifera, where reports conflict regarding carotenoid compositions and quantities of β-carotene (Inocent, Ejoh, Issa, Schweigert, & Tchouanguep, 2007;Lako et al, 2007;Martin, Telek, & Ruberte, 1974;Ukom et al, 2016).…”

Pigments in Vegetables

“…The yellow pigments of the aerial tubers of D. bulbi/era were investigated by Martin et al (1974). Ten varieties grown in Puerto Rico contained carotenoids that consisted exclusively of xanthophylls in free and predominantly esterified form.…”