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بررسی کمّی و کیفی اسیدهای چرب بذر دو گونه Withania coagulans (Stocks) Dun. و Withania somnifera (L.) Dun. از رویشگاه‌های مختلف استان سیستان و بلوچستان | ||
| تحقیقات گیاهان دارویی و معطر ایران | ||
| مقاله 4، دوره 33، شماره 5 - شماره پیاپی 85، دی 1396، صفحه 730-740 اصل مقاله (214.1 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijmapr.2017.110173.2000 | ||
| نویسندگان | ||
| زینب کیخا* 1؛ محرم ولیزاده2؛ جعفر ولیزاده3؛ خلیل الله طاهری4 | ||
| 1کارشناسی ارشد فیتوشیمی، گروه شیمی، دانشکده علوم پایه، دانشگاه سیستان و بلوچستان، زاهدان، ایران | ||
| 2استادیار، گروه تولیدات گیاهی، مجتمع آموزش عالی سراوان، ایران | ||
| 3دانشیار، گروه زیست‌شناسی، دانشکده علوم پایه، دانشگاه سیستان و بلوچستان، زاهدان، ایران | ||
| 4استادیار، گروه شیمی، دانشکده علوم پایه، دانشگاه سیستان و بلوچستان، زاهدان، ایران | ||
| چکیده | ||
| این مطالعه برای اولین‌بار در ایران با هدف بررسی کمّی و کیفی اسیدهای چرب موجود در بذر دو گونه Withania coagulans (Stocks) Dun. و Withania somnifera (L.) Dun. و نیز بررسی تأثیر رویشگاه‌های متفاوت بر کمّیت و کیفیت اسیدهای چرب انجام شد. پنج نمونه از بذرهای گیاهان مورد مطالعه از رویشگاه‌های مختلف استان سیستان و بلوچستان در آبان‌ماه 1395 جمع‌آوری گردید. پس از جداسازی بذر از میوه گیاهان، روغن بذرها به روش سوکسله و با حلال n-Hexan استخراج شد و توسط دستگاه GC مجهز به دتکتور FID مورد تجزیه کمّی و کیفی قرار گرفت. نتایج نشان داد، رویشگاه‌های مختلف تأثیر قابل توجهی بر میزان و نوع اسیدهای چرب موجود در روغن بذر دو گونه گیاه مورد بررسی داشته است. به‌طوری که در نمونه بوزیدان (Withania somnifera (L.) Dun.) جمع‌آوری شده از رویشگاه زاهدان، اسیدهای چرب غالب لینولنیک اسید (امگا3) (%39.84) و در رویشگاه سراوان، آرشیدیک اسید (SFA) (34.95%) بود. همچنین اسیدهای چرب غالب برای نمونه پنیرباد (Withania coagulans (Stocks) Dun.) جمع‌آوری شده از رویشگاه‌های گشت سراوان و پیپ به‌ترتیب لینولنیک اسید (امگا3) (62.73% و 67.03%) و در رویشگاه تنگه سرحه اولئیک اسید (امگا9) (69.22%) بدست آمد. به‌طور کلی نتایج حاصل از این بررسی تأثیرگذاری بالای موقعیت اکولوژیکی را بر کمّیت و کیفیت اسیدهای چرب موجود در بذر این دو گونه گیاهی به اثبات رساند و نشان داد که بذرهای بوزیدان در مقایسه با بذرهای پنیرباد حاوی مقادیر بیشتری روغن می‌باشد. | ||
| کلیدواژه‌ها | ||
| اسید چرب؛ بوزیدان (Withania somnifera (L.) Dun.)؛ پنیرباد (Withania coagulans Stocks) Dun.)؛ سیستان و بلوچستان؛ رویشگاه | ||
| عنوان مقاله [English] | ||
| Studying the quantity and quality of fatty acids in the seeds of Withania coagulans (Stocks) Dun. and Withania somnifera (L.) Dun., collected from different habitats of Sistan and Baluchestan | ||
| نویسندگان [English] | ||
| Z. Kaykha1؛ M. Valizadeh2؛ J. Valizadeh3؛ Kh. Taheri4 | ||
| 1M.Sc. of Phytochemistry, Department of Chemistry, Faculty of Basic Sciences, University of Sistan and Baluchestan, Zahedan, Iran | ||
| 2Department of Plant Production, Higher Education of Saravan Complex, Saravan, Iran | ||
| 3Department of Biology, Faculty of Basic Sciences, University of Sistan and Baluchestan, Zahedan, Iran | ||
| 4Department of Chemistry, Faculty of Basic Sciences, University of Sistan and Baluchestan, Zahedan, Iran | ||
| چکیده [English] | ||
| This study was conducted for the first time in Iran to investigate the quantity and quality of fatty acids in the seeds of Withania coagulans (Stocks) Dun. and Withania somnifera (L.) Dun. and compare the effects of different habitats on the quantity and quality of fatty acids. Five seed samples of the study species were collected from different habitats of Sistan and Baluchestan Province in November 2016. After clearing the seeds from fruits, the seed oils were extracted by Soxhlet apparatus and pure solvent n-Hexane, and analysed qualitatively and quantitatively using GC with FID-Fame detectors. The results showed that different habitats had significant impact on the amount and type of fatty acids in the seed oil of two study species. The predominant fatty acid in W. somnifera, collected from Zahedan habitat, was linolenic acid (Omega-3) (39.84%), while in Saravan habitat, archidic acid was the predominant fatty acid (SFA) (34.95%). The predominant fatty acid in W. coagulans, collected from Gosht of Saravan and Pip habitats was linolenic acid (Omega-3) (62.73%; 67.03%), respectively, while in the Tange Sarheh habitat, oleic acid was the predominant fatty acid (Omega-9) (69.22%). In general, the results of this study proved the high effect of ecological status on the quantity and quality of fatty acids in the seeds of the study species. Our results clearly showed that the seeds of W. somnifera contained more oil as compared with W. coagulans. | ||
| کلیدواژه‌ها [English] | ||
| Fatty acid, Withania somnifera (L.) Dun, Withania coagulans (Stocks) Dun, Sistan and Baluchestan, habitat | ||
| مراجع | ||
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