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Avicenna Journal of Phytomedicine، جلد ۶، شماره ۴، صفحات ۴۲۵-۴۳۳
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عنوان انگلیسی Phytochemical screening and evaluation of antioxidant activities of Dracocephalum kotschyi and determination of its luteolin content
چکیده انگلیسی مقاله Objective: Dracocephalum kotschyi (Lamiaceae family) has been usedin traditional medicine for stomach and liver disorders, headache and congestion. In the present study, we have investigated phytochemical properties and antioxidant activities of dichloromethane, ethyl acetate and methanol extracts of D.kotschyi. Material and Methods: Antioxidant activities of extracts were evaluated using the integration of HPLC-DPPH and ferric reducing antioxidant power (FRAP) methods. In addition, the luteolincontent was determined using HPLC method. Results: The highest antioxidant activity was observed for the methanol extract (among the three tested extracts) showing 50% DPPH scavenging activity at 4.85µg/ml as compared to butylated hydroxy toluene (BHT) and ascorbic acid (3.00 µg/ml, 0.97 µg/ml). Also, luteolin was detected in methanol extract; it was identified by comparing its retention time and DAD spectra with standard and it was one of antioxidant components of this plant. In addition, the antioxidant activity of methanol extract was higher than BHT, in FRAP assay. Total phenolic content was in the range of 11.62-22.29 mg Gallic acid /gram of dry extract and flavonoid content was in the range of 3.97-5.042 mg Quercetin/ gram of extract for dichloromethane, ethyl acetate and methanol extracts. The quantity of luteolin in D.kotschyiwas found to be 1061.005 µg/g of dried plant. Conclusion: The results of this investigation indicated that luteolin plays major role in the antioxidant activity of the plant.
کلیدواژه‌های انگلیسی مقاله Antioxidant, Dracocephalum kotschyi, Luteolin, HPLC
نویسندگان مقاله منصوره کمالی | mansureh kamali
department of chemical engineering, quchan azad university, quchan, iran


سوسن خسرویار | susan khosroyar
department of chemical engineering, quchan azad university, quchan, iran


حسین کمالی | hossein kamali
natural products amp;amp; medicinal plants research center, north khorasan university of medical sciences, bojnurd, iran


طوبی احمدزاده ثانی | tooba ahmadzadeh sani
school of pharmacy, mashhad university of medical sciences, mashhad, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (Mashhad university of medical sciences)

آمنه محمدی | ameneh mohammadi
natural products amp;amp; medicinal plants research center, north khorasan university of medical sciences, bojnurd, iran
نشانی اینترنتی http://ajp.mums.ac.ir/article_6377.html
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زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Original Research Article
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