In this study, the essential oil obtained by hydrodistillation of the seed of <em>Trachyspe... more In this study, the essential oil obtained by hydrodistillation of the seed of <em>Trachyspermum ammi </em>(Umbelliferae), growing wild in Sabzevar, Khorasan Razavi province (Iran), were analyzed by GC and GC/MS. The yield of total volatiles was 2.3% (w/w). Forty four compounds representing 91.6% of the aerial parts oil were identified. The main components of the oil were Hexadecanoic acid (27.5%), ethyl linoleate (8.5%), 6-methyl-α-ionone (8.0%), isobutyl phthalate (5.8%), α-cadinol (4.7%), germacrene D (4.3%) and δ-cadinene (3.5%). The oil was rich in nonterpenoids (56.0%). The total flavonoid content of different extracts of the plant was found to be in the range 53.2-164.5 mg/g while the maximum amount concern to methanol extract. The antioxidant activity of the extracts was also measured by radical scavenging activity of antioxidants against free radical 1, 1-diphenyl-2-picrylhydrazyl (DPPH) method. Results showed that IC<sub>50</sub> of the extracts of ...
: In this study, the essential oil obtained by hydrodistillation of the aerial parts of Sclerorha... more : In this study, the essential oil obtained by hydrodistillation of the aerial parts of Sclerorhachis platyrachis (Boiss.) Podlech ex Rech. f. (Compositae), growing wild in Sabzevar, Khorasan Razavi Province (Iran), was analyzed by GC and GC/MS. The total yield of volatiles was 0.38% (w/w). Sixty- three compounds representing 89.2% of the aerial parts oil were identified. The main components of the oil were β-pinene (17.5%) and γ-terpinene (15.4%). The oil was rich in monoterpenoids, and among them, monoterpene hydrocarbons (48.7%) predominated over oxygenated monoterpenes (11.8%). The total flavonoid content of different extracts of the plant was in the range 52.4-172.3 mg/g, with the maximum amount being in the methanol extract. The antioxidant activities of the extracts were also measured based on radical scavenging activity of antioxidants using the 1, 1-diphenyl-2-picrylhydrazyl (DPPH) method. The results showed that IC 50 values of extracts of S. platyrachis are higher than for the standard synthetic antioxidants, BHT, ascorbic acid and gallic acid.
In this study, the essential oil obtained by hydrodistillation of the seed of <em>Trachyspe... more In this study, the essential oil obtained by hydrodistillation of the seed of <em>Trachyspermum ammi </em>(Umbelliferae), growing wild in Sabzevar, Khorasan Razavi province (Iran), were analyzed by GC and GC/MS. The yield of total volatiles was 2.3% (w/w). Forty four compounds representing 91.6% of the aerial parts oil were identified. The main components of the oil were Hexadecanoic acid (27.5%), ethyl linoleate (8.5%), 6-methyl-α-ionone (8.0%), isobutyl phthalate (5.8%), α-cadinol (4.7%), germacrene D (4.3%) and δ-cadinene (3.5%). The oil was rich in nonterpenoids (56.0%). The total flavonoid content of different extracts of the plant was found to be in the range 53.2-164.5 mg/g while the maximum amount concern to methanol extract. The antioxidant activity of the extracts was also measured by radical scavenging activity of antioxidants against free radical 1, 1-diphenyl-2-picrylhydrazyl (DPPH) method. Results showed that IC<sub>50</sub> of the extracts of ...
: In this study, the essential oil obtained by hydrodistillation of the aerial parts of Sclerorha... more : In this study, the essential oil obtained by hydrodistillation of the aerial parts of Sclerorhachis platyrachis (Boiss.) Podlech ex Rech. f. (Compositae), growing wild in Sabzevar, Khorasan Razavi Province (Iran), was analyzed by GC and GC/MS. The total yield of volatiles was 0.38% (w/w). Sixty- three compounds representing 89.2% of the aerial parts oil were identified. The main components of the oil were β-pinene (17.5%) and γ-terpinene (15.4%). The oil was rich in monoterpenoids, and among them, monoterpene hydrocarbons (48.7%) predominated over oxygenated monoterpenes (11.8%). The total flavonoid content of different extracts of the plant was in the range 52.4-172.3 mg/g, with the maximum amount being in the methanol extract. The antioxidant activities of the extracts were also measured based on radical scavenging activity of antioxidants using the 1, 1-diphenyl-2-picrylhydrazyl (DPPH) method. The results showed that IC 50 values of extracts of S. platyrachis are higher than for the standard synthetic antioxidants, BHT, ascorbic acid and gallic acid.
Uploads
Papers by Hasan Rezaei