Effects of Extraction Solvents and Drying Techniques on Antioxidant Content and Radical Scavenging Activity of Roselle (Hibiscus sabdariffa) Calyx
Effects of Extraction Solvents and Drying Techniques on Antioxidant Content and Radical Scavenging Activity of Roselle (Hibiscus sabdariffa) Calyx
Nur Anis Hashim1, Nor Hasima Mahmod1*, Abubakar Abdullahi Lema2, Lee-Hoon Ho3 and Mohammad Moneruzzaman Khandaker1
Figure 1:
Gallic acid calibration curve.
Figure 2:
Total phenolic content in various calyx sample extracts.
Figure 3:
Quercetin calibration curve.
Figure 4:
Graph of total flavonoid content of various calyx extract.
Figure 5:
Result for phytochemical test (a) anthocyanins (b) tannins (c) saponins (d) glycosides (e) flavonoids (f) terpenoids.
Equation 1
Equation 2
August 2024
Vol. 40, Sp. Iss. 1
