نتایج جستجو برای: central composite rotatable design

تعداد نتایج: 1501192  

ABSTRACT: Aqueous enzymatic extraction of oil from pistacia khinjuk was performed using cellulase. The central composite design was used to optimize the parameters that are significant to the process. The influence of three regressors on the percentage of oil recovery from seed was evaluated using second-order polynomial multiple regression model. Analysis of variance showed a high coefficient ...

Journal: :Sustainability 2022

About 70% of the harvested coffee is exported to industrialized nations for value addition due lack processing and logistic facilities in developing producer countries, thus leaving behind a marginal economic return growers. This research was conducted investigate roasting capacity an innovatively developed batch-type directly solar radiated system decentralized using energy. Central composite ...

Journal: :Research, Society and Development 2021

The gluten-free pasta (GFP) has a higher cost and is often brittle, pale, poorly balanced in macro micronutrients when compared to wheat-based pasta. This study aimed use the biofortified sweet potato flour, natural source of color provitamin A ingredient, with rice hydrolyzed soy protein concentrate, carboxymethyl cellulose gum produce GFP, using central composite rotatable design three factor...

Journal: :Bioresources and Bioprocessing 2022

Abstract A new approach was used for the immobilization of Thermomyces lanuginosus lipase (TLL), Candida antarctica B (CALB), and Rhizomucor miehei (RML) on amine-functionalized magnetic nanoparticles (Fe 3 O 4 @SiO 2 -NH ) via a multi-component reaction route (using cyclohexyl isocyanide). The method offered single-step very fast process covalent attachment lipases under extremely mild conditi...

Journal: :Bulletin of The Chemical Society of Ethiopia 2022

ABSTRACT. In this work, an activated carbon composite made with magnesium oxide nanoparticles (MgONP-AC) was effectively utilized for methyl orange (MO) adsorption. The effect of pH (6-10), mass MgONP-AC (0.1-0.3 g/L), initial MO concentration (10-30 mg/L), and temperature (283-323 K) on removal investigated using a central rotatable experimental design based the response surface technique (RSM...

Journal: :Food and Bioprocess Technology 2021

Kefir is a dairy-based probiotic beverage with high antioxidant activity, among other health benefits. To extend kefir’s beneficial effects to non-dairy consumers, studies on kefir fermentation using alternative matrices (referred as water kefir) are needed. As such, the purpose of this study was formulate novel Russian olive, product activity and potential properties. end, olive (RWK) process ...

جواد کرامت, , سید هاشم حسینی‌پرور, , مهدی کدیور, ,

This research was carried out to determine the optimum conditions for acidic extraction of gelatine from cattle bones. The effects of different treatments such as pH (1.8 to 2.6), temperature (60 to 80°C) and time (40 to 120minutes) on yield of extraction, gel strength, viscosity and absorption (420 nm) was measured. Coefficients of central composite rotatable design (CCRD) and regression surf...

2013
Janaína T. de Faria Pollyana F. Rocha Attilio Converti Flávia M.L. Passos Luis A. Minim Fábio C. Sampaio

The aim of our study was to select the optimal operating conditions to permeabilize Kluyveromyces lactis cells using ethanol as a solvent as an alternative to cell disruption and extraction. Cell permeabilization was carried out by a non-mechanical method consisting of chemical treatment with ethanol, and the results were expressed as β-galactosidase activity. Experiments were conducted under d...

2014
Jaqueline N. Silva Mateus G. Godoy Melissa L. E. Gutarra Denise M. G. Freire

Enzyme extraction from solid matrix is as important step in solid-state fermentation to obtain soluble enzymes for further immobilization and application in biocatalysis. A method for the recovery of a pool of lipases from Penicillium simplicissimum produced by solid-state fermentation was developed. For lipase recovery different extraction solution was used and phosphate buffer containing Twee...

Journal: :Chemosphere 2008
Akrama Mahmoud Aurora Fernandez Toma-Mihai Chituchi Patricia Arlabosse

Thermally assisted mechanical dewatering (TAMD) is a new process for energy-efficient liquid/solids separation which enhances conventional-device efficiency. The main idea of this process is to supply a flow of heat in mechanical dewatering processes to favour the reduction of the liquid content. This is not a new idea but the proposed combination, especially the chosen operating conditions (te...

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