Plants are rich sources of phenolic compounds (flavonoids, tannins and anthocyanins) and dietary antioxidants. This study was conducted in Jiroft and Bam regions of Kerman, Iran, to compare the phenolic compounds and antiradical activity of flowers, leaves, fruits and latex extracts of Milkweed (Calotropis procera) in these cities. The phenolic content was measured by the Folin–Ciocalteau method and the antioxidant activity by DPPH (2, 2- diphenyl-1-picrylhydrazyl). Total phenols content were high in leaves extracts (9.72 and 9.02 mg Gallic acid/g dry weight in Bam and Jiroft plants, respectively) and lowest in latex of plants (3.1 and 3.59 mg Gallic acid/g dry weight in Bam and Jiroft plants, respectively). The highest antioxidant capacity was exhibited by extracts of leaves (DPPH= 74.31%, IC50 = 0.18 mg.ml-1) and the lowest DPPH=26.23%, IC50 = 0.42mg.ml-1) was in dried latex extracts of plants. The phenols and scavenging potential of leaf and fruit extracts of plants growing in Bam city were higher compared to Jiroft plants. In contrast, phenolic compounds and scavenging activity of flower and latex extracts of plants growing in Jiroft city were higher than Bam plants. The obtained results showed that flower, leaf, fruit and latex extracts of plant of Calotropis procera possess antiradical activity and could be used as natural antioxidant ingredients in food and drug industries.
کلید واژگان :Total phenolic compounds, radical scavenging, DPPH, Milkweed (Calotropis procera).
ارزش ریالی : 600000 ریال
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