This study was conducted to determine the physical properties and the vitamin A and vitamin E present using spectroscopic analysis in different Dioscorea species tuber extracts found in Lavezares, Northern Samar, Philippines. The result for the physical characterization of different Dioscorea species in tuber extracts has a boiling point of 97.6˚C, milky white in color, unpleasant in odor, has a density of 0.81 g/mL, and has a pH of 4.9. In solubility, the ethanol and water are miscible. While the tuber extracts has a boiling point of 98.6˚C, brown in color, like tea in odor, has a density of 0.86 g/mL, and has a pH of 5.6, in solubility the ethanol and water are miscible. UV-Vis analysis was used to determine the vitamin A and vitamin E content of Dioscorea species and was compared to standard sample. The vitamin content analysis shows that the sample has good natural vitamins.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.