نتایج جستجو برای: germacrene b

تعداد نتایج: 899705  

Journal: :Polish Journal of Veterinary Sciences 2023

Essential oils from plants used in traditional medicine are known as a rich source of chemically diverse compounds with specific biological activities. Achillea millefolium essential oil (AEO) was screened for vitro activity against Babesia canis. The AEO obtained by hydrodistillation and analysed gas chromatography coupled to mass spectrometry (GC-MS). GC-MS revealed the presence 47 oil. Those...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه زابل - دانشکده کشاورزی و منابع طبیعی 1391

یکی از عوامل مهم که بر کمیت و کیفیت ترکیبات شیمیایی گیاهان مرتعی تأثیر زیادی دارد، مراحل فنولوژیک است. این عامل در تعیین زمان مناسب برداشت گیاهان دارویی مراتع جهت استحصال حداکثر ماده موثره باید مد نظر قرار گیرد. این تحقیق در مراتع منطقه دلفارد از توابع شهرستان جیرفت و با هدف بررسی تعیین تغییرات کمّی و کیفی مواد موثره دو گیاه فراسیون سفید و مرمرشک در مراحل مختلف فنولوژی و تعیین بهترین زمان برداشت...

ژورنال: :نشریه شیمی و مهندسی شیمی ایران 2015
محبوبه طاهرخانی شیوا مسعودی مهدی کرمی نیا عبدالحسین روستائیان

جنس  phlomis، از خانواده نعنائیان labiatae ، در ایران 17 گونه گیاهی دارد. اندام هوایی گیاه  phlomis aucheri boiss با شماره هرباریومی (herbarium no: 91021, tari) و با نام فارسی گوش بره ایرانی، گوش بره زرد، که بومی ایران می باشد از دامنه های کوه منطقه شهران، واقع در استان تهران جمع آوری شد. در این کار پژوهشی ترکیب ­های تشکیل دهنده اسانس اندام هوایی گیاه p. aucheri  به روش تقطیر با آب استخراج شد و...

A Shafiee F Fouladi HR Alavi N Yasa

The essential oils of Peucedanum ruthenicum M. Bieb. (Umbelliferae) leaves, flowers and fruits were prepared by hydrodistillation and analyzed by GC and GC-MS and the composition of the three essential oils were compared. Thirty-three, thirty-seven and thirty-one compounds were identified in leaves, flowers and fruits essential oils representing 89.13%, 88.66% and 76.45% of total oils respectiv...

Journal: : 2022

Araştırma Göller Yöresi (Türkiye) florasında farklı lokasyonlarda doğal olarak yetişen Smyrnium connatum Boiss & Kotschy meyve uçucu yağ oranı ve bileşenlerinin belirlenmesi amacıyla 2016 yılında yürütülmüştür. Meyve örneklerinin oranları Clavenger tipi hidro-distilasyon cihazında, bileşenleri ise GC/MS’de belirlenmiştir. Farklı lokasyonlardan alınan % 1.75 ile 5.00 arasında geniş bir varya...

A Shafiee F Fouladi HR Alavi N Yasa

The essential oils of Peucedanum ruthenicum M. Bieb. (Umbelliferae) leaves, flowers and fruits were prepared by hydrodistillation and analyzed by GC and GC-MS and the composition of the three essential oils were compared. Thirty-three, thirty-seven and thirty-one compounds were identified in leaves, flowers and fruits essential oils representing 89.13%, 88.66% and 76.45% of total oils respectiv...

2017
Valeria Cagno Barbara Sgorbini Cinzia Sanna Cecilia Cagliero Mauro Ballero Andrea Civra Manuela Donalisio Carlo Bicchi David Lembo Patrizia Rubiolo

Salvia desoleana Atzei & V. Picci is an indigenous species in Sardinia island used in folk medicine to treat menstrual, digestive and central nervous system diseases. Nowadays, it is widely cultivated for the pleasant smell of its essential oil (EO), whose antimicrobial and antifungal activities have already been screened. This study evaluated the in vitro anti-Herpes Simplex Virus-2 (HSV-2) ac...

2014
Lamia Sakka Rouis-Soussi Asma El Ayeb-Zakhama Aouni Mahjoub Guido Flamini Hichem Ben Jannet Fethia Harzallah-Skhiri

The chemical composition of the essential oils of different Allium nigrum L. organs and the antibacterial activity were evaluated. The study is particularly interesting because hitherto there are no reports on the antibacterial screening of this species with specific chemical composition. Therefore, essential oils from different organs (flowers, stems, leaves and bulbs) obtained separately by h...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2011
Omer Kilic Alpaslan Kocak Eyup Bagci

The essential oils of water-distilled aerial parts of Anthemis pseudocotula and Anthemis cretica subsp. pontica (Asteraceae) were analysed by GC-MS. As a result thirty-five and forty compounds were identified representing 93.1% and 89.0% of the oils, respectively. The main compounds of A. pseudocotula were 1,8-cineole (39.40%), camphor (9.36%), artemisiaketone (5.68%), filifolene (5.15%), and a...

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