نتایج جستجو برای: hydrodistillation
تعداد نتایج: 1022 فیلتر نتایج به سال:
Plant extracts are being studied in the development of novel edible food coatings. The antioxidant and antimicrobial compounds that naturally occur some plants key substances contribute to preserving quality. Besides plant material, method utilized produce extract influences its chemical preservative characteristics. In general, hydrodistillation products (essential oils) well recognized for co...
This study focused on five different subspecies of Portuguese Daucus carota L., to identify the main compounds in essential oils umbels from each subspecies. The isolation was performed by hydrodistillation methods followed further composition analysis gas chromatography-mass spectrometry, ultimately demonstrating that had major compounds. concluded found subsp. maritimus were geranyl acetate, ...
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...
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...
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...
در این پروژه سعی شده که نوع و میزان ترکیبات تشکیل دهنده اسانس موجود در دو گیاه مرزه (satureja hortensis) و چوچاخ (eryngium caucasicum) با روش gc/msشناسایی شود، و سپس با استفاده از روش تفکیک منحنی چند متغیره (mcr) پیک های همپوشانی شده مورد تجزیه و تحلیل قرار گرفته تا اجزای بیشتری مورد شناسایی قرار گیرند. هدف از انجام این پروژه بررسی نوع و میزان ترکیبات تشکیل دهنده اسانس بدست آمده از دو روش تقطیر...
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...
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