Organic chemistry
Majid Halimi; Malihe Nasrabadi
Volume 6, Issue 2, pp. 109-217, Serial No. 19 , April 2018, , Pages 143-147
Abstract
The 17-membered macrocyclic spermine alkaloid protoverbine (8-phenyl-1,5,9,13-tetra azacycloheptadecan-6-one) was isolated From the aerial part of verbascum speciosum. The natural polyamines are ubiquitous bases reported to have several important functions in animals, plants and microorganisms. They ...
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The 17-membered macrocyclic spermine alkaloid protoverbine (8-phenyl-1,5,9,13-tetra azacycloheptadecan-6-one) was isolated From the aerial part of verbascum speciosum. The natural polyamines are ubiquitous bases reported to have several important functions in animals, plants and microorganisms. They are involved in processes of transcription and translation in protein synthesis and influence growth and development (cell division, differentiation, embryogenensis, etc.). In plants their involvement in organ development, flowering, fruit ripening, senescence and stress responses is reported. The structure of the protoverbine established by a study of their spectral such as 1HNMR,13C-NMR, IR, ESI-MS analyses and chemical properties. To the best of our knowledge, this is the first report of protoverbine from this species.
Biochemistry
Majid Halimi; Malihe Nasrabadi; Hamid Soorgi; Mohabat Nadaf
Volume 4, Issue 4, pp. 359-490, Serial No. 13 , October 2016, , Pages 389-398
Abstract
The aim of this study was to investigate the Stachys turcomanica phytochemical compounds, antimicrobial and antioxidant activity of methanolic extract. The volatile constituents from the aerial parts of Stachys turcomanica growing wild in Iran were obtained by hydrodistillation and analyzed by GC and ...
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The aim of this study was to investigate the Stachys turcomanica phytochemical compounds, antimicrobial and antioxidant activity of methanolic extract. The volatile constituents from the aerial parts of Stachys turcomanica growing wild in Iran were obtained by hydrodistillation and analyzed by GC and GC-MS. In the GC-MS analysis, Forty-six components representing 81.1% of the oil were identified. The main constituents the oil were 1-octen-3-ol (13.4%), β -pinene (7.9%), α -pinene (5.6%), α -bisabolol(4.4%), ar-curcumene(4.0%) and β –myrcene(3.7%).The phytochemical analysis revealed the presence of alkaloids , flavonoids and terpenoid in varying concentration . The antioxidant activity of aerial parts of methanolic extract was studied in vitro by 2’2’-diphenylpicrylhydrazyl (DPPH) radical–scavenging activity. The methanolic extract of Stachys turcomanica leaves exhibited amaximum DPPH scavenging activity of (81.61±0.78) %at10mg/mL followed by aerial parts of plant. Whereas for BHT (standard) was found to be (94.79±0.75) % at the same concentration. Methanol solvent to screen the antimicrobial activity selected phytopathogens by agar diffusion method. The maximum antibacterial (phytopathogene) activities were observed on Xanthomonascampestrispv.Campestris,Agrobacterium sp.and Pseudomonas viridiflava.
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