نتایج جستجو برای: extraction yield

تعداد نتایج: 354272  

Hocine Kadi, Patrick Sharrock Ramdane Moussaoui, Sadia Djadoun

In this study, Microwave-Assisted Solvent Extraction (MASE) was used to recover oil residues from pomace olive using acidic hexane. Results obtained demonstrated that oil extraction yield increased with time, the amount of acetic acid in hexane and power radiation. For both radiation powers used (170 and 510W), the optimal extraction time and most interesting content of acetic acid in hexan...

Journal: :Acta pharmaceutica 2013
Ajit A Patil Sachin S Bhusari Devanand B Shinde Pravin S Wakte

The response surface methodology using the Box-Behnken design was established to describe supercritical carbon dioxide assisted extraction of phyllanthin from Phyllanthus amarus Schum and Thonn leaves prior to HPLC analysis. The effects of extraction pressure, temperature, modifier concentration and extraction time on the yield of phyllanthin were investigated. By solving the regression equatio...

2005
Sergey Bravyi David Fattal Daniel Gottesman

Let |Ψ〉 be an arbitrary stabilizer state distributed between three remote parties, such that each party holds several qubits. Let S be a stabilizer group of |Ψ〉. We show that |Ψ〉 can be converted by local unitaries into a collection of singlets, GHZ states, and local one-qubit states. The numbers of singlets and GHZs are determined by dimensions of certain subgroups of S. For an arbitrary numbe...

The goal of this study was to investigate the most suitable kinetic models for pectin extraction by way of ultrasound-assisted extraction (UAE) and conventional heating extraction (CHE) with acid from melon peel. The ultrasound and acidic assisted extraction were performed on powdered melon peel in three different temperatures of 40-55-70°C and 50-70-90°C, respectively. It was observed that, in...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1391

in this work, a novel and fast method for direct analysis of volatile compounds (davc) of medicinal plants has been developed by holding a filament from different parts of a plant in the gc injection port. the extraction and analysis of volatile components of a small amount of plant were carried out in one-step without any sample preparation. after optimization of temperature, extraction time a...

Journal: :Clinical chemistry 2013
Pratibala Pandit Justin Cooper-White Chamindie Punyadeera

BACKGROUND The use of salivary diagnostics is increasing because of its noninvasiveness, ease of sampling, and the relatively low risk of contracting infectious organisms. Saliva has been used as a biological fluid to identify and validate RNA targets in head and neck cancer patients. The goal of this study was to develop a robust, easy, and cost-effective method for isolating high yields of to...

2012
Lei Yang Xiaowei Sun Fengjian Yang Chunjian Zhao Lin Zhang Yuangang Zu

Ionic liquid based, microwave-assisted extraction (ILMAE) was successfully applied to the extraction of proanthocyanidins from Larix gmelini bark. In this work, in order to evaluate the performance of ionic liquids in the microwave-assisted extraction process, a series of 1-alkyl-3-methylimidazolium ionic liquids with different cations and anions were evaluated for extraction yield, and 1-butyl...

2006
Sergey Bravyi David Fattal Daniel Gottesman

Let be an arbitrary stabilizer state distributed between three remote parties, such that each party holds several qubits. Let S be a stabilizer group of . We show that can be converted by local unitaries into a collection of singlets, GHZ states, and local one-qubit states. The numbers of singlets and GHZs are determined by dimensions of certain subgroups of S. For an arbitrary number of partie...

Journal: :iranian journal of chemistry and chemical engineering 0
hocine kadi laboratoire de chimie appliquée et génie chimique, université m. mammeri de tizi - ouzou (hasnaoua), tizi-ouzou. 15000 algerie ramdane moussaoui laboratoire de chimie appliquée et génie chimique, université m. mammeri de tizi - ouzou (hasnaoua), tizi-ouzou. 15000 algerie sadia djadoun laboratoire de chimie appliquée et génie chimique, université m. mammeri de tizi - ouzou (hasnaoua), tizi-ouzou. 15000 algerie patrick sharrock laboratoire d’études et de recherches en imagerie spatiale et médicale, université paul sabatier, castres. 81104 france

in this study, microwave-assisted solvent extraction (mase) was used to recover oil residues from pomace olive using acidic hexane. results obtained demonstrated that oil extraction yield increased with time, the amount of acetic acid in hexane and power radiation. for both radiation powers used (170 and 510w), the optimal extraction time and most interesting content of acetic acid in hexane ar...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
(pages 1-14) s. h. hosseiniparvar j. keramat m. kadivar e. khanipour e. milani

gelatin is a protein hydrocolloid. because of its unique characteristics such as gel forming, thickening, stabilizing, emulsifiing, foam and film forming, is widely used in food industries. in this research, in order to optimize the factors which affect enzymatic extraction method of gelatin ,the effects of three variables, enzyme concentrations(2-10 ppm), time(8-16 hours) and temperature(60-80...

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