نتایج جستجو برای: bornyl acetate
تعداد نتایج: 50096 فیلتر نتایج به سال:
Volatile components of three parts of Pimpinella tragium Vill. (Umbelliferae family) from Iran were investigated qualitatively and quantitatively for the first time. Essential oils were isolated by hydro-distillation from stems plus leaves, inflorescence and seeds of P. tragium individually. The plant materials were collected from Polour (Northeast of Tehran Province). The yields of the ...
The composition of the essential oil extracted from Valeriana hardwickii Wall. roots growing wild in Talle Valley of Arunachal Pradesh, Eastern Himalaya was analyzed by capillary GC and GC/MS. Thirty-one compounds representing 89.6% of the total oil were identified. The oil was found to be rich in sesquiterpenes from which oxygenated sesquiterpenes (25.7%). Methyl linoleate (21.1%) and Valerace...
سر شاخه گلدار گیاه Achillea millefolium subsp. millefolium در اوایل مرداد 1382 از منطقه لار در استان تهران جمع آوری گردید. سپس از نمونه با روشهای تقطیر اسانس گیری شد. بازده اسانس در روش تقطیر با بخار, در نمونه های گل و برگ به ترتیب 0.2 و 0.05 درصد و با روش تقطیر با آب, 0.4 و 0.04 درصد بدست آمد. اسانس ها توسط دستگاههای کروماتوگرافی گازی (GC) و کروماتوگرافی گازی متصل به طیف سنج جرمی (G...
volatile components of three parts of pimpinella tragium vill. (umbelliferae family) from iran were investigated qualitatively and quantitatively for the first time. essential oils were isolated by hydro-distillation from stems plus leaves, inflorescence and seeds of p. tragium individually. the plant materials were collected from polour (northeast of tehran province). the yields of the stems p...
چکیده : دو گیاه perovskia abrotanoides karel و zeravschania aucheri در سایه تحت جریان ملایم هوا خشک شدند. اسانس گیری از گیاهان خشک شده توسط دو روش تقطیر با آب و میکرواستخراج فاز جامد در فضای فوقانی انجام گرفت و اسانس ها با استفاده ار روش کروماتوگرافی گازی- طیف سنج جرمی (gc-ms) مورد تجزیه و تحلیل قرار گرفتند. ترکیبات عمده شناسایی شده در اسانس برگ و گل و ساقه گیاه p.abrotanoides عبارتند از: ...
Volatile components of three parts of Pimpinella tragium Vill. (Umbelliferae family) from Iran were investigated qualitatively and quantitatively for the first time. Essential oils were isolated by hydro-distillation from stems plus leaves, inflorescence and seeds of P. tragium individually. The plant materials were collected from Polour (Northeast of Tehran Province). The yields of the ...
In this study, chemical compositions of hydrodistilled essential oil and anti-inflammatory activities from the twigs of Cinnamomum osmophloeum Kaneh. were investigated for the first time. The chemical constituents of the twig essential oil were further analyzed by GC-MS and they were found to be L-bornyl acetate (15.89%), caryophyllene oxide (12.98%), gamma-eudesmol (8.03%), beta-caryophyllene ...
water-distilled essential oil of ferulago macrocarpa (umbelliferae) fruits was analyzed using gc-ms for the first time. forty-two components comprising 99.5% of the total oil were identified, of which bornyl acetate (40.8%), 2,3,6-trimethyl benzaldehyde (7.2%), δ-selinene (5.5%), 1,10-di-epi-cubenol (5.1%), germacrene d (3.5%), β-phellandrene (3.5%) and α-pinene (3.4%) were found to be the majo...
بخش های هوایی این گیاه از منطقه شفت واقع در استان گیلان جمع آوری شد و پس از خشک شدن در سایه با روش تقطیر با آب (hydrodistillation)مورد اسانس گیری قرار گرفت (بازده اسانس07/3 بود). اسانس به دست آمده به وسیله دستگاه gc/msآنالیز شد. نمونه اسانس جهت بررسی فعالیت آنتی اکسیدانی احتمالی با روش های 2و2دی فنیل-1-پیکریل هیدرازیل(dpph) و بتا کاروتن-لینولئیک اسید مورد ارزیابی قرار گرفتند. نتایج این تحقیق م...
Essential oils have insecticidal activity against several insects and are composed of numerous compounds. This study investigated the effects Thuja occidentalis L. (Cupressaceae) essential oil, terpinyl acetate, bornyl acetate peach aphid [Myzus persicae (Sulzer)]. The effect on three Cupressaceae plants was highest in T. occidentalis. oil extracted by steam distillation, optimum conditions wer...
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