Determination of antiradical activity and phenolic and flavonoid contents of extracts and fractions of jackfruit (Artocarpus heterophyllus Lamk) seeds
2021
Zubaydah, W. O. S. | Sahumena, M. H. | Fatimah, W. O. N. | Sabarudin. | Arba, M. | Yamin.
Jackfruit (Artocarpus heterophyllus Lamk) is a plant from the Moraceae family that is widespread in Indonesia. Empirically, jackfruit can be used to cure hypertension, diabetes, cancer, asthma, dermatosis, coughs, wounds, acne, and diarrhea. The bioactive compounds in jackfruit include phenolics and flavonoids, which function as natural antioxidants. This research investigated the antiradical activity of jackfruit seed extracts and fractions using DPPH (2-2-diphenyl-1-picrylhydrazyl) and examined the total phenolic and flavonoid contents which may be developed as functional medicines and foods. The jackfruit seed powder was extracted using the maceration method. Radical scavenging activities were measured using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) method. Total phenolic contents were determined using the Folin-Ciocalteu method. Meanwhile, the contents of flavonoids were determined using the aluminum chloride complex colorimetric method. The IC₅₀ value of ethyl acetate fraction, methanol extract, n -hexane fraction, and water fraction was 5.435±0.064 µg/mL, 5.639±0.302 µg/mL, 7.201±0.475 µg/mL, and 9.134±0.2911 µg/mL, respectively. The phenolic and flavonoid contents of ethyl acetate fraction, methanol extract, n-hexane fraction, and water fraction were 49.597±1.589, 47.949±1.966, 41.214±4.354 and 35.504±0.913 g GAE/100 g of sample, respectively for phenolic, and 70.199±0.458, 65.228±0.615, 59.907±0.719, and 54.234±0.351 g of quercetin equivalent/100 g of sample, respectively of flavonoids, with a correlation value (R²) to antiradical power of 0.4582 for phenolic and 0.5281 for flavonoids. The ethyl acetate fraction of jackfruit seeds can be further developed as an anti -radicals and functional food.
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