Comparative Study Of Nutritional Values Of Three Different Species Of Passion Fruit Planted In Lam Dong Plateau

Abstract

This study evaluated and compared the nutrient contents, total phenolic content, total flavonoid content, antioxidant activity, and anti-nutritional factors of three passion fruit species, including purple passion fruit (Passiflora edulis f. edulis), yellow passion fruit (Passiflora edulis var. flavicarpa), and sweet granadilla fruit (Passiflora ligularis). The study was performed on fruit pulp samples. Samples were collected from eight different gardens in the Lam Dong plateau - Vietnam. The methods used were based on standard procedures and methods modified by previous studies, analyzed by Kruskal-Wallis test and Dunn's test (p < 0.05). The results of nutrient content showed that the total carbohydrate, total crude fat, moisture, ash, vitamin K1, phosphorus, manganese, and iodine content were highest in P. edulis. P. flavicarpa had the highest content of fiber, vitamin B2, vitamin B3, vitamin B5, vitamin B9, and sulfur. Meanwhile, nutrients such as protein, vitamin A, vitamin B6, vitamin C, sodium, potassium, calcium, magnesium, iron, chloride, chromium, and nickel had the highest content in P. ligularis. Other nutrients had negligible amounts in all three species. On the other hand, the highest total flavonoid content was determined in P. edulis, P. ligularis had the highest total phenolic content and also had the strongest oxidative activity. Antinutrients were also found in small concentrations such as phytate highest in P. edulis; oxalate and tannin in P. ligularis. These results demonstrate that all three passion fruit species provide good nutritional value, meeting a high percentage of the recommended daily allowances. However, P. ligularis offers the most nutritional value and is promising for further research.