Comparative Study of Antioxidant Activity of Flower of Aloe vera and Leaf Extract of Aloe ferox

Abstract

Great attention has been focused on medicinal plants and phytoconstituents due to their free radicals scavenging tendency. The present study investigates the comparative antioxidant ability of aqueous extracts of flower of Aloe vera and leaf of Aloe ferox. Antioxidant activity was assessed by using the DPPH, FRAP and ABTS + free-radical method. The IC50 values of aqueous extracts of flower of the A. vera and leaf of A. ferox in DPPH assay were 406.04 and 517.01 µg/ml, in ABTS + radical scavenging assay were 44.72 and 173.05 µg/ml, EC1 in FRAP assay were 0.28 and 0.51 (mg/ml) respectively. Results of the present study showed that antioxidant capacity of whole leaf of Aloe ferox Mill was significantly higher than Aloe vera flowers.

Protective and Therapeutic Effects of Aloe Vera Gel on Ulcerative Colitis Induced by Acetic Acid in Rats

“…Owing to the low toxicity and safe biological properties, herbal drugs can be effective in improving the quality of life of patients. Aloe vera (AV) of the Liliaceae family is one of the most important species in warm and dry areas [9]. All types of AV contain gel that have more than 70 biological compounds with various properties [10], including antiinflammatory [11,12], anti-oxidant [9], anti-diabetic [13], wound healing [14], antimicrobial [15], immune system enhancer [12] and treatment of intestinal disorders [16].…”

“…Aloe vera (AV) of the Liliaceae family is one of the most important species in warm and dry areas [ 9 ]. All types of AV contain gel that have more than 70 biological compounds with various properties [ 10 ], including anti-inflammatory [ 11 12 ], anti-oxidant [ 9 ], anti-diabetic [ 13 ], wound healing [ 14 ], antimicrobial [ 15 ], immune system enhancer [ 12 ] and treatment of intestinal disorders [ 16 ]. Egyptians have used AV to treat wounds, infection and burn injury [ 17 ].…”