نتایج جستجو برای: assisted hydrodistillation

تعداد نتایج: 131704  

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2001
K H Başer G Tümen N Tabanca F Demirci

Satureja wiedemanniana (Lallem.) Velen (Lamiaceae) is an endemic species of Turkey. Aerial parts of the plant collected from eleven different localities in Turkey were subjected to hydrodistillation to yield essential oils which were analysed by a GC/MS system. Carvacrol, thymol, p-cymene and gamma-terpinene were found as the main constituents. Antibacterial evaluation of the oils was also carr...

Journal: :Horticulturae 2022

The extraction of bioactive plant components, which belong to specialized metabolites, is carried out by conventional and novel methods. In this study, a classical (hydrodistillation, HD) technique (microwave-assisted water extraction, MAE) were used isolate free volatile compounds from nine Croatian Veronica taxa (family Plantaginaceae). Each these extracts consists lipophilic phase an aqueous...

Journal: :Journal of Essential Oil Research 2021

This study aimed to characterize the chemical composition of leaf essential oil (EO) mandarin and tangor trees obtained by steam distillation hydrodistillation. Leaf samples were collected during pruning period from seven citrus cultivars in a property located Pareci Novo, Rio Grande do Sul state, South Brazil. The leaves underwent hydrodistillation distillation, EO was analyzed GC-MS GC-FID. I...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد شاهرود - دانشکده علوم پایه 1392

اسانس گیاهان (خشک شده در سایه)، tanacetum tenuisectum , tanacetum polycephalum به دو روش: 1- تقطیر با آب 2- برای اولین بار به روش میکرواستخراج فاز جامد در فضای فوقانی گرفته شد و به روش gc/ms مورد آنالیز و شناسایی واقع گردید. عمده ترکیبات اسانس سرشاخه های گلدار گیاه (tanacetum polycephalum) hydrodistillation % compounds 12.07 camphor 10.66 1, 8- cineole 9.57 chrysanthenyl acetate – t...

Journal: :Chemical Industry and Chemical Engineering Quarterly 2009

Journal: :Metana: Media Komunikasi Rekayasa Proses dan Teknologi Tepat Guna 2023

Red ginger is known as one of the medicinnal and aromatic plants that have high value in form essential oils. The distillation red oils required large amounts water, then most water was disposed wastewater. This wastewater hydrosol, which still contains a small amount secondary metabolites such zingiberene geraniol. These compounds were considered to potential be utilized cosmetic products foot...

Journal: :Machine 2022

This study aims to design and test the citronella leaf distillation tool by conducting experiments testing tools results. The parameters observed were heat transfer in distillery produced tool, results of conduction research tank 1,032.61 J/s (Joules per second) natural convection was 3,761.16 with an initial water temperature 28°C a specified 98°C. time more than 5 hours will reduce quality yi...

Akram Rahimi, Ali Reza Ghiasvand Gholam Reza Talei Mohammad Borzuei Payman Hashemi

The volatile components of Citrus aurantium L. flowers were characterized by GC-MS with two different extraction techniques, hydrodistillation (HD) and ultrasonic-assisted headspace solid phase microextraction (UA-HS-SPME). In the SPME method, the volatile components of the samples, irradiated by ultrasonic radiation, were collected on a polydimethyl siloxane (PDMS) commercial fiber as...

Journal: :Separations 2023

Myrica gale is an aromatic peatland shrub that has reported traditional use as insect repellent. Different extraction methodologies were used in this study to isolate the essential oil of L., including Clevenger hydrodistillation (CH) and microwave-assisted (MAH). The oils, isolated from different plant parts (leaves, fruit branches) collected summer autumn, analysed by GC-MS volatiles tissue d...

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