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Articles by Yaghoub Amanzadeh
Total Records ( 3 ) for Yaghoub Amanzadeh
  Abdolhossein Miri , Hamid Reza Monsef-Esfahani , Mohsen Amini , Yaghoub Amanzadeh , Abbas Hadjiakhoondi and Reza Hajiaghaee
  Phytochemical and bioactivity studies of Teucrium persicum Boiss. have been investigated on the aerial parts of the plant. About 2 flavonoids, 5-hydroxy 3, 7, 4-trimethoxyflavone and 5-hydroxy 7, 3′, 4′-trimethoxyflavone were purified and identified from chloroform partition by spectroscopy methods. The crude extracts and isolated compounds were screened for their antioxidant activities using DPPH radical-scavenging, FRAP and Reducing power methods. Methanol extract and isolated flavonoids were found to be the most antioxidant active portions.
  Hamid Reza Monsef-Esfahani , Abdolhossein Miri , Mohsen Amini , Yaghoub Amanzadeh , Abbas Hadjiakhoondi , Reza Hajiaghaee and Yousef Ajani
  Essential oils from the aerial parts of Teucrium persicum Boiss. (Labiatae), collected in 3 stages (pre-flowering, flowering and post-flowering) from plants grown in the Fars province of Iran were obtained by steam distillation. The chemical composition of the oils were analyzed by GC-MS. Analysis of the chemical profile of the isolated oils revealed the presence of >80 compounds, mainly sesquiterpene hydrocarbons, oxygenated monoterpenes and sesquiterpenes. They contained α-terpinyl acetate, α-cadinene, 1,4-cadinadiene, linalool and cadinol. Average yield was 1%. The studied essential oils showed good antioxidant activities as calculated by 3 in vitro assays: DPPH radical scavenging, Ferric Reducing Power Assay (FRAP) and Reducing Power (RP).
  Yaghoub Amanzadeh , Nafiseh Khosravi Dehaghi , Ahmad Reza Gohari , Hamid Reza Monsef-Esfehani and Seyed Esmail Sadat Ebrahimi
  In this study, the essential oils from the arial parts of Lallemantia iberica (Lamiaceae), collected in 2 stages (flowering and post-flowering) from plants that caltivated in Institute of Medicinal Plants (ACECR) in Hashtgerd of Iran were obtained by hydrodistillation in Clevenger type apparatus. The chemical components of the essential oils were examined by GC and GC-MS then 36 components were characterized in flowering stage with β-cubeben (19.55%), Linalool (18.71%), spathulenol (18.04%), β-caryophyllene (11.11%), geraniol (3.50%) and bicyclogermacrene (3.46%) as the major constituents. All constituents are representing 97.39% of the essential oil, contained monoterpenes (33.85%) and sesquiterpens (63.54%). About 39 components of essential oil of post-flowering stage were introduced which caryophylene oxide (38.77%), linalool (15.15%), Germacrene-D (7.03%), Trans-caryophylene (5.61%), β-bourbonene (4.96%) and Trans-geraniol (4.34%) as the major constituents of it. All components are representing 95.74% of the essential oil contained monoterpens (26.51%) and sesquiterpens (69.23%). The studied essential oils showed antioxidant activities as calculated by 2 in vitro assays; DPPH radical scavenging and Ferric Reducing Power Assay (FRAP).
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