نتایج جستجو برای: ray spectroscopy response surface methodology solid state fermentation

تعداد نتایج: 2996233  

2006
Nicemol Jacob Parukuttyamma Prema

Production of different pectinolytic enzymes was attempted using the actinomycete strain Streptomyces lydicus in submerged fermentation. Polygalacturonase and pectin lyase activities were detected in the culture supernatant, but the strain was not able to produce pectin esterase. Polygalacturonase production was studied in submerged, slurry-state and solid-state fermentation systems. All the ex...

2011
Norbert Müller Armin Brechling Marc

MA 19.1 Tue 10:45 P2 XPS investigation of a tetranuclear nickel complex— ∙Daniel Taubitz1, Phalguni Chaudhuri2, Vitaly Pavlishchuk2, Karsten Kuepper3, and Manfred Neumann1 — 1Department of Physics, University of Osnabrück, Barbarastrasse 7, D-49069 Osnabrück, Germany — 2Max-Planck-Institut für Strahlenchemie, Stiftstrasse 34-36, D-45470 Mülheim an der Ruhr, Germany — 3Department of Solid State ...

2017
Eyarkai Nambi V Eyarkai Nambi V Chandrasekar S Karthikeyan

Solid state fermentation (SSF) is a bioconversion process by microorganism and enzymes. It effectively depolymerizes the cellulose, ligno cellulose present in the agricultural produces, cereals and biomas. It also enriches protein, colour, antioxidant activity, modification of functional properties of cereals. Solid state fermentation provides wide range of application in food and bio processin...

Journal: :chemistry of solid materials 2013
naz chaibakhsh m.b. abdul rahman k. jesunathan m basri

esterification of chitosan with adipic acid catalyzed by immobilized candida antarctica lipase b was carried out in this study. response surface methodology (rsm) based on a four-factor- five-level small central composite design (sccd) was employed to model and analyze the reaction. a total of 21 experiments representing different combinations of the four reaction parameters including ch...

Journal: :physical chemistry research 2015
vahid mahdavi hamid reza hasheminasab

vanadium phosphorus oxides (vpo) has been applied as a heterogeneous catalyst in gas phase oxidation reactions and its application is very limited in liquid phase. in this study a series of cobalt-doped vanadium phosphorus oxides (vpo-co) catalysts with different loading of co (0.01-1.0 mol ratio of co/v) were prepared. oxidation of benzyl alcohol was studied in the liquid phase over vpo and vp...

Journal: :international journal of nanoscience and nanotechnology 2013
r. ahmadi a. khodadadi darban

in this paper, size distribution of nano-bubbles was measured by the reliable and fast method of laserdiffraction technique. nano-bubbles were produced using a nano-bubble generator designed and madebased on hydrodynamic cavitation phenomenon in venturi tubes. a central composite design withresponse surface methodology was used to conduct a five factor, five level factorial experimental designo...

Journal: :advances in environmental technology 0
yasser vasseghian chemical engineering department, faculty of engineering, razi university, kermanshah, iran

in this present study the dissolved air flotation (daf) system was investigated for the treatment of kermanshah oil refinery wastewater. the effect of three parameters on flotation efficiency including of flow rate (outflow from the flotation tank), saturation pressure and coagulant dosage on chemical oxygen demand (cod) removal was examined experimentally. all the experiments were done under a...

Journal: :applied food biotechnology 0
ali bozorg department of chemical and petroleum engineering, sharif university of technology, tehran, iran. manouchehr vossoughi department of chemical and petroleum engineering, sharif university of technology, tehran, iran. akhtarolmoluk kazemi department of chemical and petroleum engineering, sharif university of technology, tehran, iran. iran alemzadeh department of chemical and petroleum engineering, sharif university of technology, tehran, iran.

in order to reduce the costs associated with poly-β-hydroxybutyrate production, growth and poly-β-hydroxybutyrate production of ralstonia eutropha were studied in batch culture on different carbon sources. experiments were designed and conducted to not only lower the cost of poly-β-hydroxybutyrate production by using inexpensive substrates, but also to increase poly-β-hydroxybutyrate production...

2015
Fabrice Leardini Lorenzo Massimi Eduardo Flores-Cuevas Jose Francisco Fernández Jose Ramon Ares Maria Grazia Betti Carlo Mariani

Ethane 1,2-diamineborane (EDAB) is an alkyl-containing amine-borane adduct with improved hydrogen desorption properties as compared to ammonia borane. In this work, it is reported the high temperature thermolytic decomposition of EDAB. Thermolysis of EDAB has been investigated by concomitant thermogravimetry-differential thermal analysis-mass spectrometry experiments. EDAB shows up to four H₂ d...

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