نتایج جستجو برای: low temperature degradation process

تعداد نتایج: 2794933  

ABSTRACT: In this study, response surface methodology was used to optimize ultrasound osmotic pretreatment with finished freeze drying of black cherries. Freeze drying is a separation process based on the  sublimation phenomenon. This process has the following advantages as compared to the conventional drying process, maintenance of the structure, moisture removal at low temperature (reduced tr...

Journal: :nutrition and food sciences research 0
behnaz naderi gorgan university of agricultural science and natural resources, gorgan, iran yahya maghsoudlou gorgan university of agricultural science and natural resources, gorgan, iran mehrnaz aminifar standard research institute (sri), karaj, iran mohammad ghorbani gorgan university of agricultural science and natural resources, gorgan, iran ladan rashidi standard research institute (sri), karaj, iran

background and objectives: red colored fruits such as cornelian cherry (cornus mas l) are recognized as being healthy. the color of these fruits is an important sensory property in assessment of product quality therefore, minimizing the loss of color in the process is very important. materials and methods: in this study, comparison of the color, turbidity, degradation rate of anthocyanin, and r...

2015
Alberto Malinverno Ernesto A. Martinez

The degradation of sedimentary particulate organic carbon (POC) is a key carbon cycle process that fuels the deep subseafloor biosphere. The reactivity of POC is expected to decrease with increasing sediment age, severely restricting the energy available to microorganisms. Conversely, increasing temperatures during burial have been proposed to stimulate POC degradation, possibly supplying signi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی شیمی 1391

attempts have been made to study the thermodynamic behavior of 1,3 butadiene purification columns with the aim of retrofitting those columns to more energy efficient separation schemes. 1,3 butadiene is purified in two columns in series through being separated from methyl acetylene and 1,2 butadiene in the first and second column respectively. comparisons have been made among different therm...

2017
María Piedad Ramírez Fernández Sergio A. Gehrke Carlos Pérez Albacete Martinez Jose L. Calvo Guirado Piedad N. de Aza

Some studies have demonstrated that in vivo degradation processes are influenced by the material's physico-chemical properties. The present study compares two hydroxyapatites manufactured on an industrial scale, deproteinized at low and high temperatures, and how physico-chemical properties can influence the mineral degradation process of material performance in bone biopsies retrieved six mont...

Journal: :international journal of environmental research 2010
m. assassi f. fourcade f. geneste d. floner r. maachi

the aim of this study was to determine the feasibility of coupling an electrochemical process with a biological treatment in order to degrade phosmet, an organophosphorous pesticide. the absence of biodegradability of phosmet by pseudomonas fluorescens and activated sludge was verified in our operational conditions. so, a conventional biological treatment is not appropriate for phosmet polluted...

2014
Despina C. Moschou Dimitrios N. Kouvatsos Giannis P. Kontogiannopoulos Filippos V. Farmakis Apostolos T. Voutsas A. VOUTSAS

Low temperature polycrystalline silicon thin film transistors (LTPS poly-Si TFTs) are essential for large area electronics and high performance flat panel displays. In recent years, LTPS TFT performance has substantially increased due to the important breakthroughs in the field of polycrystalline silicon crystallization and also due to the optimization of the process steps that differ from thos...

Titanium dioxide nanoparticles surface-modified by 5-sulfosalicylic acid 5-SA-TiO2 were prepared in ethanol by the chemisorption process. The effects of surface improvement on the photocatalytic degradation and adsorption of methyl orange MO were studied in a batch system by considering the various parameters, such as contact time, adsorbent dosage, pH, initial dye concentration and temperature...

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