Evaluation of free radical scavenging activity, nutritional values and secondary metabolites of Dioscorea dregeana (Kunth) Tuber

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DOI:

https://doi.org/10.57040/3ec2nj58

Keywords:

Free radicals, Metabolites, Dioscorea dregeana, Extraction, phytochemicals

Abstract

The dioecious climber plant Dioscorea dregeana (Kunth.), sometimes referred to as wild yam, has huge underground hairy and fleshy tubers that can reach a diameter of 300 mm. The phytochemical, free radical scavenging activity, proximate composition, and elemental analysis of the wild yam tubers were evaluated. Tannin, phenols, flavonoids, saponins, terpenoids, alkaloids, and steroids were present in the tuber extract while proximate analysis of the tuber showed that it contains carbohydrate 57.24%, protein 7.74%, lipid 9.72%, crude fibre 3.12%, ash 3.07% and moisture 19.11%. The free radical scavenging activity results of the tuber showed moderate antioxidant property even at 1.0 mg/mL (44.82%) when compared with the standard, Vitamin C at 1.0 mg/mL (81.92). The tuber of D. dregeana also had high magnesium content which is essential in human and animal health. Findings from the phytochemical, proximate, and mineral analyses of the tubers of D. dregeana showed that it has good nutritional and medicinal values which can be exploited for use as human and animal feeds as well as in the treatment or management of some diseases.

 

 

 

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Published

2024-08-30

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Articles