نتایج جستجو برای: gc ms

تعداد نتایج: 145754  

Journal: :international journal of advanced biological and biomedical research 2014
s. mohammadi kh. piri

objective: in order to use natural compounds in controlling plant pests and diseases, many researchers in recent years have studied the antifungal effects of essential oils and plant extracts.  the purpose of this study was to investigate the chemical composition and antifungal effects of echium khuzestanium and marubbium anisodan extracts. methods: after extraction and preparation of different...

ژورنال: :علوم گیاهان زراعی ایران 2015
سجاد رشیدی منفرد محمدرضا نقوی بهمن یزدی صمدی هوشنگ علیزاده کی یانگ

بیان موقت در بافت برگ با ناقل­های دوتایی روش سریعی برای تولید پروتئین در گیاهان است. عامل های رونویسی باعث تغییر بیان همزمان چند ژن می­شوند. به همین دلیل می توان از آنها برای اصلاح صفات کمی مانند سوخت وسازگر (متابولیت)های ثانویه که با چند ژن کنترل می شوند، استفاده کرد. گیاه artemisia annua گیاهی یک ساله، بومی آسیا و به احتمال بسیار زیاد چین است و یکی از مهم ترین سوخت وسازگر­های دارویی یعنی ترکی...

Journal: :journal of herbal drugs (an international journal on medicinal herbs) 2014
maryam vakilzade anaraki forough mortazaeinezhad fariba khalili mohamad mahdi gheisari mahtab esfahanizadeh hosseinpoor

background & aim: turmeric, scientifically named (curcuma longa l.), a member of ginger (zingiberaceae) family, is a perennial plant, with pharmaceutical properties and with a rhizome. this plant has many medicinal characteristics including anti-cancer, anti-bacteria and anti-hepatitis properties. experimental: to study the effects of gibberellic acid and salicylic acid on leaf, the rhizome...

Journal: :journal of herbal drugs (an international journal on medicinal herbs) 2013
abdollah ghasemi pirbalouti abolghasem gorgij mehdi rahimmalek behzad hamedi

background & aim:jasmonic acid (ja) is regarded as endogenous regulators that play important roles in regulating stress responses, plant growth and development.effect of foliar application of ja on the essential oil and oil chemical components of hyssop (hyssopus officinalis l.) were investigated. experimental:  this study conducted in a crd with three replications and in experimental green...

Journal: :journal of herbal drugs (an international journal on medicinal herbs) 2013
leila sedaghat boroujeni mohammad hojjatoleslami abdollah ghasemi pirbalouti hooman molavi

background & aim: the use of herbs in traditional medicine to treatment of diseases and other purposes in the food industry and cosmetics has since long been considered.  considering that heracleum lasiopetalum, thymus carmanicus and myrtus communis have many health benefits therefore this research were performed to investigate the chemical composition of essential oils from these plants. e...

Journal: :International journal of biological, physical and chemical studies 2022

Bouea macrophylla Griff is a member of the Anacardiaceae family, which has edible fruits. Due to high nutritional value, appealing taste, and attractive color, fruit juice B. potential be developed as functional beverage. The present study was conducted determine phytochemical profile using GC-MS LC-MS/MS. analysis performed with Agilent Technologies 7890 Gas Chromatograph automated sampling ta...

2018
Jana Jeffery Maria Carradus Karolina Songin Michael Pettit Karl Pettit Christopher Wright

A gas chromatography-mass spectrometry (GC-MS) method was validated for the determination of 16 polycyclic aromatic hydrocarbons (PAHs) from the FDA list of 93 harmful or potentially harmful constituents of mainstream cigarette smoke (MCS). Target analytes were extracted from total particulate matter using accelerated solvent extraction with a toluene/ethanol solvent mixture. Matrix artefacts w...

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