نتایج جستجو برای: hydrodistillation hd
تعداد نتایج: 20477 فیلتر نتایج به سال:
Volatile composition of essential oils from dill, parsley, coriander, and mint were investigated at different harvest dates to determine the most suitable harvest time for each these herbs. Hydrodistillation (HD), using a Deryng system, was used for isolating the essential oils. Isolation and identification of the volatile compounds were performed using gas chromatography-mass spectrometry (GC-...
پاسخ طبیعی (hd) h-reflex depression در افراد ضایعه نخاعی مزمن کاهش می یابد. کاهش این پاسخِ طبیعی ممکن است در روند افزایش تون عضلانی و بروز اسپاستی سیته در این بیماران موثر باشد. هدف مطالعه حاضر بررسی اثر تحریک سه قطبی کاتدال بر پاسخ hd در بیماران ضایعه نخاعی و افراد سالم است؛ و علاوه برآن اثر پدالینگ پس از تحریک الکتریکی سه قطبی ستون فقرات و روش تحریک محیطی معمول، بر hd و پارامترهای منحنی فراخوا...
Purpose: The aim of this study was to evaluate the effects of HMT on protection of lung tissue exposed to HD in the rat. Materials and Methods: In this study twenty Albino Wister adult male rats weighting 200±20 gram were used. Rats divided randomly into 4 groups (each group has 5 rats) as below: Normal saline group (NS), HMT group, HD group (0.25% HD) and HD+HMT group. Normal saline and HD sol...
Volatile oils obtained from both the liquid medium after incubation (MAI) and liquid medium before incubation (MBI) during the cultivation process of Lactobacillus brevis were isolated by hydrodistillation (HD) and analyzed to determine the utility of the liquid waste. The composition of the volatile oils was analyzed by capillary gas chromatography (GC) and gas chromatography-mass spectrometry...
Garlic, Alliumsativum, is broadly used around the world for its numerous culinary and medicinal uses. Wild garlic, Allium vineale, has been used as a substitute for garlic, both in food as well as in herbal medicine. The present study investigated the chemical compositions of A. sativum and A. vineale essential oils. The essential oils from the bulbs of A. sativum, cultivated in Spain, were obt...
The chemical composition of the essential oils was influenced by many factors including extraction methods. In this study, the effect of extraction methods; hydrodistillation, microwave assisted hydrodistillation and solvent free microwave extraction of Mentha piperita L. growing in Taif, KSA, on the yield and chemical composition of their essential oils were investigated. Furthermore, the oils...
مقدمه. سولفورموستارد ( HD )، ب ه عنوان یک سلاح شیمیایی بسیار خطرناک همیشه مورد استفاده بوده است. علیرغم تحقیقات گسترده طی چندین دهه هنوز راه کار مناسبی برای پیشگیری یا درمان عوارض HD یافت نشده است. مواد و روش کار. در این مطالعه رده سلولی HF2FF به‌عنوان مدلی از سلول‌های فیبروبلاست پوست انسان برای بررسی اثرات سمی HD و اثر محافظتی هگزامتیلن تترامین ( HMT ) در مقابل HD مورد استفاده قرار گرفت. رو...
The objective of this study is to report the comparative chemical analysis of essential oil (EO) obtained by hydrodistillation (HD) and volatile fraction (VF) detected by headspace solid phase micro-extraction (HS–SPME) isolated from Pulicaria mauritanica using Gas Chromatography–Retention Indices (GC-RI) and GC–Mass Spectrometry (GC-MS) and to evaluate in vitro the antimicrobial activity of P....
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