Open Access
Subscription Access
Antidiabetic and Antioxidant Profile of Three Varieties of Passion Fruit
The present study was undertaken to assess the anti-diabetic potential and antioxidant profile of three different varieties of passion fruit that are locally available in Kerala. Even though studies have been done on the chemical composition of passion fruit, very few studies have been reported on the nutrient composition and glycemic response of its locally available varieties. The samples selected were purple passion fruit (Passiflora edulis), yellow passion fruit (Passiflora edulis var flavicarpa) and sweet passion fruit (Passiflora ligularis). The nutrients vitamin C, total carotene as well as total fiber content were analysed. Preliminary phytochemical analysis confirmed the presence of tannins, alkaloids and flavonoids in all three samples. Sweet passion fruit had the highest content of total phenol followed by yellow and purple varieties respectively. The free radical scavenging activity of the selected varieties of passion fruit was measured using the stable radical DPPH assay. Alpha amylase inhibition assay was done to assess the anti-diabetic activity. Yellow passion fruit had the highest content of vitamin C (36.34mg/100g) and total carotene (91μg/100g) as well as total antioxidant activity (IC50 of 149.623) whereas sweet passion fruit exhibited highest fiber content (11.5mg/100g) and total phenol content (31.4mg GAE/g). The highest anti-diabetic property was shown by the purple passion fruit (146). Thus the present study revealed that the selected varieties of passion fruit have good antioxidant profile and significant anti-diabetic potential.
Keywords
- Boeing H, Bechthold A and Bub A. Critical review: vegetables and fruit in the prevention of chronic diseases. European Journal of Nutrition. 2012; 51(6):637–63. https:// doi.org/10.1007/s00394-012-0380-y PMid:22684631 PM-Cid: PMC3419346
- Bernacci LC, Meletti LMM, Soares-Scott MD, Passos IRS and Junqueira NNT. Passionflower species: characterization and conservation of biodiversity. Passionflower: germplasm and breeding. Embrapa Cerrados, Planaltina. 2005; p. 559–86.
- Joy PP, Thomas J, Mathew S and Skaria BP. Medicinal plants, in Tropical Horticulture. Bos TK, Kabir J, Das P, Joy PP, Eds., Medicinal Plants. Naya Prokash, Calcutta, India. 2010; 2:449–632.
- Raghuramulu N, Madhavan Nair K and Kalyanasundaram S. A Manual of Laboratory Techniqaues, 2nd edition. National Institute of Nutrition, Hyderabad. 2003; p. 57, 157, 158.
- Arnon DI. Copper enzymes in isolated chloroplasts, polyphenol oxidase in Beta vulgaris. Plant Physiology. 1949; 2:1–15. https://doi.org/10.1104/pp.24.1.1
- Ayoola GA, Coker HAB, Adesegun SA, Adepoju-Bello AA, Obaweya K, Ezennia EC and Atangbayila TO. Phytochemical Screening and Antioxidant Activities of Some Selected Medicinal Plants Used for Malaria Therapy in Southwestern Nigeria. Tropical Journal of Pharmaceutical Research. 2008; 7(3):1019–24.
- Ferreira ICFR, Baptista P, Vilas-Boas M and Barros L. Free radical scavenging capacity and reducing power of wild edible mushrooms from northeast Portugal: Individual cap and stipe activity. Food Chemistry. 2007; 100:1511–6. https://doi.org/10.1016/j.foodchem.2005.11.043
- Xiao Z, Storms R and Tsang A. A quantitative starch-iodine method for measuring alpha-amylase and glucoamylase activities. Analytical Biochemistry. 2006; 351(1):146–8. https://doi.org/10.1016/j.ab.2006.01.036 PMid:16500607
- Dai J and Mumper R. Plant phenolics: extraction, analysis and their antioxidant and anticancer properties. Molecules. 2010; 15:7313–52. https://doi.org/10.3390/molecules15107313 PMid:20966876 PMCid:PMC6259146
Abstract Views: 746
PDF Views: 425