Isolation of borneol and bornyl acetate from Ferulago macrocarpa by microwave irradiation
محورهای موضوعی : مجله گیاهان داروییژیلا اصغری 1 , محمد صالحی 2 , محسن مظاهری تهرانی 3
1 - گروه شیمی، دانشگاه گلستان، گلستان، ایران
2 - گروه شیمی، دانشگاه گلستان، گلستان، ایران
3 - گروه شیمی، دانشگاه گلستان، گلستان، ایران
کلید واژه: Microwave irradiation, bornyl acetate, Ferulago macrocarpa, Borneol,
چکیده مقاله :
Background & Aim: A simple and rapid microwave- assisted extraction (MAE) procedure was developed and optimized for the isolation of borneol and bornyl acetate from Ferulago macrocarpa. Ferulago macrocarpa (Apiaceae) is an endemic plant in Iran. Experimental: Dried powdered aerial parts of plants were soaked in water and irradiated with microwave in a Clevenger extraction approach under optimum conditions (520 W and 0.5 h). Results & Discussion: Compared to traditional heating methods by Clevenger, the present method is more efficiency and proceeds in a short time. The isolation rates of borneol and bornyl acetate increased by about 2 and 1.3, respectively, as compared to the conventional thermal methods. Low cost, easy extraction, high purity of the extracted products and high efficiency are the advantages of this method. Furthermore, solvent free extraction of the essential oils is a good method for the development of green chemistry. Recommended applications/industries: The essential oil of this plant obtained by MAHD and HD methods, contained bornyl acetate as the most abundant component. The extracted essential oil by MAHD was qualitatively similar to that obtained by HD however; it was achieved in a much short time. Therefore pilot microwave reactor might be proven suitable for large scale extraction with potential industrial applications.
مقدمه و هدف: یک روش ساده و سریع برای استخراج بورنئول و بورنیلاستات از گیاهFerulago macrocarpa تحت تابش اشعه ریزموج در شرایط بهینه میباشد این گیاه بومی جنگلهای ایران است.روش تحقیق: در این روش، اندام هوایی گیاه پس از خشک و پودرکردن، در آب خیسانده شدند و سپس تحت تابش اشعه ریزموج در سیستم کلونجر در شرایط بهینه (520 وات و 5/0 ساعت) قرار گرفته شدند. نتایج و بحث: نتایج این روش در مقایسه با روش حرارتی معمولی موثرتر بود و در مدت زمان کوتاهی عمل عصاره گیری انجام شد. سرعت استخراج دو ترکیب بورنیل و بورنیلاستات به ترتیب حدود 2 و 3/1 برابر بیشتر از روش معمولی بود. پایین بودن هزینه، بالا بودن بازده، کیفیت و خلوص بالای محصول، از مزایای این روش نسبت به روش حرارتی معمولی میباشد. به علاوه به دلیل عدم استفاده از حلالهای آلی، در توسعه شیمی سبز و سازگار با محیط زیست حائز اهمیت میباشد.توصیه کاربردی/ صنعتی: میزان روغن این گیاه با استفاده از روش استخراج به کمک تابش اشعه ریزموج و روش حرارتی معمولی غنی از بورنیل استات میباشد. روغن استخراج شده با تابش ریزموج از لحاظ کیفی مشابه با روش حرارتی معمولی بود که در زمان کوتاه تر انجام میشود. بنابراین استفاده از راکتور ریز موج میتواند برای استخراج در مقیاس صنعتی مناسب باشد.
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