The results of the present investigation revealed that aqueous solvent (80% methanol, 80% ethanol)
extracts of plant materials, prepared by both the shaker and reflux extraction techniques, exhibited
better antioxidant activities and higher phenolic contents. Moreover, higher antioxidant extracts yields
from the tested plant materials were obtained using the reflux extraction technique than by shaker,
regardless of the solvent system used. Contrarily to extraction yield, the total phenolic contents and
antioxidant activities of the tested plant materials decreased when these were extracted using the reflux
technique. The present data would certainly help to ascertain the potency of the tested medicinal plant
materials as potential source of natural antioxidants to be used for nutraceutical and functional food
applications. However, further research is needed to identify individual components forming
antioxidative system and develop their applications for food and pharmaceutical industries