Authors Y. Hu, J. Xu, Q. Hu,
antioxidant activities were evaluated compared to BHT and alpha-tocopherol by the DPPH radical scavenging method and the linoleic acid system at 100 micrograms of soluble solids per mL of ethanol, Aloe vera contained significantly higher levels of polysaccharides and flavonoids, All the aloe extracts showed significant antioxidant activity, BHT, alpha-tocopherol, strongest radical scavenging activity of 72.19%, which is significantly higher than that of BHT at 70.52% and alpha-tocopherol at 65.20%. These data suggest that the growth stage plays a vital role in the composition and antioxidant activity of Aloe vera.