Seasonal factors such as temperature, solar UV-light intensity, and daylight length can induce changes in the water quality properties and, hence, the nutritional compositions of plants. This comparative study was carried out for the consecutive four (4) seasons (winter, spring, summer, and autumn) to determine the influence of seasonal variations on the 50% inhibitory concentration (IC50), total antioxidant capacity (TAC), total phenolics content (TPC), and total flavonoids content (TPC) of the red chili fruit (RCF), red tomato fruit (RTF), green leafy spinach (GLS), and green leafy lettuce (GLL) collected from a coupled commercial aquaponics system. The IC50, TAC, TPC, and TFC concentration levels indicated a significant (P<0.05) difference in the summer compared with the winter, spring, and autumn. The RCF extract indicated the lowest IC50, thus greater scavenging power in comparison to RTF, GLS, and GLL extracts. Similarly, the RCF showed the highest TAC and TPC, while the GLL showed the highest TFC. In this study, variations in seasons have induced changes in the IC50, TAC, TPC, and TFC concentration levels of the RCF, RTF, GLS, and GLL extracts.
The author declares no conflict of interest
Rhodes University, South Africa
Thanks to the Department of Biochemistry and Microbiology, Rhodes University, South Africa, and John Davies, the aquaponics system proprietor.
Primary Language | English |
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Subjects | Food Sustainability |
Journal Section | Research Articles |
Authors | |
Publication Date | June 30, 2024 |
Submission Date | January 16, 2024 |
Acceptance Date | February 16, 2024 |
Published in Issue | Year 2024 Volume: 6 Issue: 1 |
Turkish Journal of Food and Agriculture Sciences is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Journal Abbreviation: Turk J Food Agric Sci