نتایج جستجو برای: hydrodistillation hd

تعداد نتایج: 20477  

Journal: Journal of Herbal Drugs 2016

Background & Aim:Nepeta racemosa is an herbal and medicinal plant and this report aims to   identify chemical compositions of the essential oils and volatiles of its   aerial parts through classical and advanced methods.  Experimental: Chemical profiles of the essential oils and volatile compounds from the aerial parts of Nepeta racemosa obtai...

2014
A. Manayi S. Saeidnia M. Shekarchi A. Hadjiakhoondi M. R. Shams Ardekani M. Khanavi

Essential oils are considered as very complex natural mixtures containing numerous components at quite various concentrations. Lythrum salicaria has not been previously subjected to examination of its volatile oil. The present study was carried out to evaluate the essential oil composition of the flowering aerial parts of the plant by using conventionally hydro-distillation (HD) and microwave a...

Journal: :فرآوری و نگهداری مواد غذایی 0
رویا شکاری باشگاه پژوهشگران جوان دانشگاه آزاد اسلامی، واحد ورامین، پیشوا، گروه صنایع غذایی، ورامین کرامت اله رضایی گروه علوم و مهندسی صنایع غذایی، دانشگاه تهران سیمین اسدالهی گروه صنایع غذایی، دانشگاه آزاداسلامی، واحد ورامین

in this research, microwave-assisted hydrodistillation (md) with pretreatment ultrasound (us) 45 and 90 min of essential oils from fresh aegle marmelos peel were used and the results were compared with those obtained by hydrodistillation technique (hd) in terms of extraction yield/efficiency, extraction time, chemical composition and quality of the essential oil. all experiments were performed ...

Journal: Journal of Herbal Drugs 2015

Background & Aim: Essential oils are isolated from different sections of plants such as flowers, seeds, leaves, stems and roots. Essential oils are applied extensively in producing of perfumes, cosmetics, foods, beverages and confectioneries and as ingredients of disinfectants and insecticides. Experimental: Essential oil are obtained by several isolation methods, such as hydrodistillation (HD...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2005
Müberra Kosar Zepnep Tunalier Temel Ozek Mine Kürcüglu K Hüsnü Can Baser

A microwave-assisted hydrodistillation protocol was modified to extract essential oils from leaves of Salvia triloba L. and Laurus nobilis L. The essential oils of these plants are generally obtained by hydrodistillation or steam distillation. The volatile compounds obtained by microwave-assisted hydrodistillation and hydrodistillation methods were analyzed by GC and GC/MS. Both distillation me...

Journal: Journal of Herbal Drugs 2015

Background & Aim: Essential oils are isolated from different sections of plants such as flowers, seeds, leaves, stems and roots. Essential oils are applied extensively in producing of perfumes, cosmetics, foods, beverages and confectioneries and as ingredients of disinfectants and insecticides. Experimental: Essential oil are obtained by several isolation methods, such as hydrodistillation (HD...

Journal: :Applied sciences 2022

Essential oils, EOs, are concentrated liquids with complex mixtures of volatile organic compounds that can be extracted from different plant materials. EOs have been used by humans throughout history due to their natural properties: pleasant fragrances, anti-bacterial/fungal activities. This work presents the impact pulsed electric fields, PEF, application as a pre-treatment for extraction euca...

F Ashouri, S Arabi, SS Seyed Saleh,

Background: Fritillaria imperialis is an endangered species with pharmaceutical alkaloids that can be effective in reducing blood pressure and reducing cardiac palpitations.   Objective: Comparison of head space solid phase microextraction (HS-SPME) and hydro-distillation (HD) techniques in determination of essential oils in Fritillaria imperialis Methods: Quality and quantity determination o...

Journal: :journal of herbal drugs (an international journal on medicinal herbs) 2015
parviz aberoomand azar kambiz larijani narjes kalantari

background & aim: essential oils are isolated from different sections of plants such as flowers, seeds, leaves, stems and roots. essential oils are applied extensively in producing of perfumes, cosmetics, foods, beverages and confectioneries and as ingredients of disinfectants and insecticides. experimental: essential oil are obtained by several isolation methods, such as hydrodistillation ...

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