در هنگام جستجو کلمه در قسمت عنوان میتوانید کلمات مورد جستجو را با کاراکتر (-) جدا کنید.
کاربرد نوع شرط:
- جایگاه : پژوهشی
- مجله: Trends In Phytochemical Research
- نوع مقاله: Journal Article
- کلمات کلیدی: Antioxidant Activity,Medicinal plants,Anticarcinogen,Veronica crista-galli,Veronica persica
- چکیده:
- چکیده انگلیسی: The antioxidant activities and reducing power capabilities of Veronica crista-galli and Veronica persica were evaluated using DPPH radical scavenging assay, total antioxidant activity and MTT assay at incubation times of 24, 48 and 72 hours. A water fraction of methanolic extract of V. crista-galli with the highest amount of total flavonoid (16.19 ± 0.001 mg of QE/g of dried plant) demonstrated stronger antioxidant effect than V. persica extract with the highest content of phenolic compounds (60.75 ± 0.0013 mg GAE/g of dried plant). The IC50 values of V. persica and V. crista-galli extracts were found to be 153.7 and 79.64 μg/mL, respectively. V. crista-galli possessed considerable inhibitory effect at lower concentrations on MCF-7 and Hela cell lines by increasing incubation time. There was no cytotoxic effect observed in the normal HDF cell line. This study recommends that the water fraction of the methanolic extracts of V. persica and V. crista-galli with in vitro antioxidant and selective anti-proliferative activities can support the popular uses of Veronica species in traditional medicine as effective natural remedies.
- انتشار مقاله: 01-10-1397
- نویسندگان: Maryam Mohadjerani,Sedigheh Asadollahi
- مشاهده
- جایگاه : پژوهشی
- مجله: Ethno- Pharmaceutical Products
- نوع مقاله: Journal Article
- کلمات کلیدی: Antioxidant,Citrullus colocynthis,Urease inhibitors,Indophenol method
- چکیده:
- چکیده انگلیسی: This study was aimed to evaluate the antioxidative and urease inhibitory properties of the extracts from Citrullus colocynthis L. The extracts of the root and pulp of fruit were prepared by soxhlet apparatus in methanol as solvent. The antioxidative activities, including DPPH radical scavenging activity, reducing power and total antioxidant activity were studied in vitro. The results showed that both tested extracts have antioxidative characteristics and it was found that the antioxidative activities of all the extracts increased with the increase of the concentration. In this report the methanolic extracts of C. colocynthis root and pulp were evaluated for their effect on inhibition of soybean urease using the indophenol method as described by Weatherburn. The inhibition potency was measured by spectroscopy technique at 630 nm which attributes to released ammonium. The extracts showed inhibitory activities with IC50 7.31μg/µl for root extract and 13.71μg/µl for pulp extract.
- انتشار مقاله: 25-06-1392
- نویسندگان: Maryam Mohadjerani,Elham Shokohsaljoghi
- مشاهده
- جایگاه : پژوهشی
- مجله: Avicenna Journal of Phytomedicine
- نوع مقاله: Journal Article
- کلمات کلیدی: fatty acids,Antibacterial,Essential oil composition,Ligularia persica,Asteraceae
- چکیده:
- چکیده انگلیسی: Objectives: The objective of this research was to investigate the chemical composition and antibacterial activities of the fatty acids and essential oil from various parts of Ligularia persica Boiss (L. persica) growing wild in north of Iran.
Materials and Methods: Essential oils were extracted by using Clevenger-type apparatus. Antibacterial activity was tested on two Gram-positive and two Gram-negative bacteria by using micro dilution method.
Results: GC and GC∕MS analysis of the oils resulted in detection of 94%, 96%, 93%, 99% of the total essential oil of flowers, stems, roots and leaves, respectively. The main components of flowers oil were cis-ocimene (15.4%), β-myrcene (4.4%), β-ocimene (3.9%), and γ-terpinene (5.0%). The major constituents of stems oil were β-phellandrene (5.4%), β-cymene (7.0%), valencene (3.9%). The main compounds of root oil were fukinanolid (17.0%), α-phellandrene (11.5%) and Β-selinene (5.0%) and in the case of leaves oil were cis-ocimene (4.8%), β-ocimene (4.9%), and linolenic acid methyl ester (4.7%). An analysis by GC-FID and GC-MS on the fatty-acid composition of the different parts of L. persica showed that major components were linoleic acid (11.3-31.6%), linolenic acid (4.7-21.8%) and palmitic acid (7.2-23.2%). Saturated fatty acids were found in lower amounts than unsaturated ones. The least minimum inhibition concentration (MIC) of the L. persica was 7.16 μg/ml against Pseudomonas aeruginosa.
Conclusion: Our study indicated that the essential oil from L. persica stems and flowers showed high inhibitory effect on the Gram negative bacteria. The results also showed that fatty acids from the stems and leaves contained a high amount of poly-unsaturated fatty acids (PUFAs).- انتشار مقاله: 12-10-1393
- نویسندگان: Maryam Mohadjerani,Rahman Hosseinzadeh,Maryam Hosseini
- مشاهده
- جایگاه : پژوهشی
- مجله: Avicenna Journal of Phytomedicine
- نوع مقاله: Journal Article
- کلمات کلیدی: Antioxidant Activity,Antibacterial activity,Adonis wolgensis,Fatty acid
- چکیده:
- چکیده انگلیسی: Objectives: The objective of this study was to analyze the fatty acid content, antioxidant, and antibacterial activities of hydro-methanolic extract of Adonis wolgensis L. (A. wolgensis L.) growing wild in north of Iran.
Materials and Methods: Oils of A. wolgensis L. was obtained by means of Soxhlet apparatus from leaves and stems. Methyl esters were derived from the oily mixtures by trans-esterification process and were analyzed by GC/FID and GC/MS systems. Phenolic compounds extraction was done with aqueous methanol (90%). This extract was investigated for antioxidant activity using DPPH radical scavenging and reducing power methods and was also tested against a panel of microorganisms.
Results: Linolenic acid (45.83%) and oleic acid (47.54%) were the most abundant fatty acids in leaves and stems, respectively. Hydro-methanolic extract with the high amount of total phenolics (9.20 ±0.011 mg GAE per dry matter) was the potent antioxidant in the assays. Results obtained from measurements of MIC for extract, indicated that E. coli, S. aureus, and S. enteritidis were the most sensitive microorganisms tested, but no activity was observed against Gram-positive microorganism (B. subtilis).
Conclusion: The results obtained from the present study indicated that the oil of A. wolgensis leaves and stems contained a high source of poly-unsaturated fatty acids (PUFAs). These results also showed that hydro-methanolic extract of this plant contained significant antioxidant and antibacterial activities.
- انتشار مقاله: 07-12-1391
- نویسندگان: Maryam Mohadjerani,Rahmatollah Tavakoli,Rahman Hosseinzadeh
- مشاهده