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Response surface method

Tìm thấy 17+ kết quả cho từ khóa "Response surface method"

Optimization of phytoestrogens extraction from soy germ using response surface methodology

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OPTIMIZATION OF PHYTOESTROGENS EXTRACTION FROM SOY GERM USING RESPONSE SURFACE METHODOLOGY. Their contents in soy germ is the highest compared to that in parts of soy seed. Response surface methodology (RSM) using Box Behnken Design of four factors was employed to optimize the extraction conditions for phytoestrogens.

Modeling and optimizing microwave-assisted extraction of antioxidant compounds from marigold (Calendula officinalis L.) using response surface methodology

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Optimisation of the solvent extraction of bioactive compounds from Parkia speciosa pod using response surface methodology

Optimization of dielectric constant and ratio material to solvent using response surface methodology on antioxidant activity teter leaves extract (Solanum erianthum)

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Optimization of Dielectric Constant and Ratio Material to Solvent using Response Surface Methodology on Antioxidant Activity Teter Leaves Extract (Solanum erianthum).

Using of response surface methodology for optimization of biohydrogen production by clostridium sp. Tr2 isolated in Vietnam

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In the present study, we used response surface methodology (RSM) to investigate the mutual effect of glucose, yeast extract, and iron concentration to more improve hydrogen production using the pure Clostridium sp. Clostridium sp. NMV contains glucose 5 g L-1, meat extract 1 g L-1, yeast extract 3 g L-1, peptone 1 g L-1.

Optimization for esterification of saturated palm fatty acid distillate by D-optimal design response surface methodology for biolubricant production

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The work on the synthesis of saturated palm fatty acid distillate (SFA-PFAD)-based esters was carried out and the aims of this work is to discuss the optimization of the esterification process between saturated palm fatty acid distillate and polyhydric alcohols by using response surface methodology based on the D-optimal approach.

Optimizing the production of pectinase of orange peel waste by penicillium chrysogenum MF318506 using response surface methodology in submerged fermentation

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Optimization of pectinase production from Geotrichum candidum AA15 using response surface methodology. https://doi.org/10.1016/j.. https://doi.org . https://doi.org/10.1007/s . https://doi.org/10.1186/s . Multiple parameter optimization for maximization of pectinase production by Rhizopus sp. Improvement of pectinase production by co-culture of Bacillus spp. https://doi.org/10.1134/s . https://doi.org/10.1590/s . https://doi.org/10.1016/s .

Optimization of scco2 extraction of rambutan seed oil using response surface methodology

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Response surface methodology was a good tool for optimization of extraction conditions [23]-[26].

Optimization of ScSO2 extraction of rambutan seed oil using response surface methodology

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Response surface methodology was a good tool for optimization of extraction conditions [23]-[26].

Optimization of synthesizing glucose 1-phosphate by sodium tripolyphosphate as a phosphorus acylating agent using response surface methodology

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Response surface and contour plot of the effect of temperature and catalyst on phosphorus content.. Response surface and contour plot of the effect of molar ratio and catalyst on phosphorus content.. Molar ratio. Response surface and contour plot of the effect of temperature and molar ratio on phosphorus content.. Figure 1 shows that the phosphorus content increases within the range of 60 ◦ C to 70 ◦ C and 2.4 g to 3.6 g of catalyst.

Extraction of flavonoids in pomelos’ peels using Box-Behnken response surface design and their biological activities

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The objectives of this study were to optimize the extraction conditions of flavonoids from the pomelo peel using the Box-Behnken response surface methodology and to investigate the chemical composition and biological activities of the extracts from three different pomelo species under optimized extraction conditions.

Development of a sample preparation strategy for the determination of tungsten in soil samples by inductively coupled plasma mass spectrometry using a response surface methodology

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Response surface plots of the model, showing the effects of the molarity of phosphoric acid (X 1. Additionally, temperature may support complexation, and this process seems to be endothermic, depending on the increasing digestibility of W from soil structures.

The production of enantiomerically pure 1-phenylethanol by enzymatic kinetic resolution method using response surface methodology

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The visualization of the predicted model equation can be obtained using surface response plots [28]. The response plots which represent the dual effects of the independent variables on the response are given in Figures 8–13.. This could be explained by the fact that there could not be enough active sites to interact with the substrate and thus the reaction could not be completed.

Application of response surface methodology to optimize the ultrasound-assisted flavonoid-rich extraction of fish mint (Houttuynia cordata Thunb.)

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The ANOVA was performed to evaluate the signifi- cance and the fitness of the model as well as the effects of significant individual terms and their interactions on the response (Table 3).. After determining the significance of the model, RSM provided the equation in terms of coded factors using to make predictions about the response as follows:. The visualization of the significance of the indepen- dent variables on the response was shown by contour and 3D surface plots (Figure 3)..

Turbidimetric study for the decontamination of paint effluent (PE) using mucuna seed coagulant (MSC): Statistical design and coag-flocculation modelling

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In response surface methodology (RSM) studies, second-order model is mostly used because it is very flexible, easy in parameter estimations and considerable practical experience in solving real response surface prob- lems ( Moghaddam et al., 2010 . In view of the above reasons, the second-order polynomial was then applied to op- timize the process.

Tối ưu hóa điều kiện chiết xuất hợp chất phenol từ lá trà Đà Lạt Camellia dalatensis Luong, Tran & Hakoda

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Through the response surface method optimization, the optimal extraction conditions for the extraction of polyphenols were an ethanol concentration of 49.29. an extraction temperature of 60°C, a sonication time of 40 min, a material size of 0.5mm, and a solvent/material ratio of 5.47.. Response surface methodology.. Polyphenolic compounds are a group of biologically active molecules and one of the most important classes of secondary plant metabolites.

Remarkable bismuth-gold alloy decorated on MWCNT for glucose electrooxidation: The effect of bismuth promotion and optimization via response surface methodology

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Au/MWCNT, Bi/MWCNT, and bimetallic Au-Bi/MWCNT were synthesized via NaBH 4 reduction method, characterized by advanced surface analytical methods. Ø Au/MWCNT, Bi/MWCNT, and Au-Bi/MWCNT at varying Au:Bi ratios could be easily prepared from corresponding Au and Bi precursors via NaBH 4 reduction method.. Ø According to XRD and TEM results, particle sizes of Au 80 Bi 20 /MWCNT were compatible with each other. It was observed that the BET surface area of Au/MWCNT increased with the addition of Bi..

Application of multi-criteria decision making methods for selection of micro-EDM process parameters

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Rahman MM, Khan MAR, Noor MM et al (2011) Optimization of machining parameters on surface roughness in EDM of Ti- 6Al-4V using Response surface method. Pradhan BB, Bhattacharyya B (2009) Modelling of micro-electro discharge machining during machining of titanium alloy Ti-6Al- 4V using response surface methodology and artificial neural network algorithm. Bigot S, Valentincic J, Blatnik O et al (2006) Micro-EDM parameters optimization.

Response surface optimization and characteristics of rambutan (Nephelium lappaceum l.) kernel fat by hexane extraction

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These results imply that the response surface model can explain more than 96 percents of the variation in the response variables studied. Therefore, the R 2 values of the response models are suf fi ciently high, to indicate that the response surface model is workable and can be used for esti- mation of the mean response and the subsequent optimization stages.

A novel fluorimetric method for determination of pseudoephedrine hydrochloride in pharmaceutical formulations and blood serum

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The method can be appropriate for clinical pharmacokinetic evaluations after the consumption of the drug.. The method was optimized by the response-surface method (RSM), which is a powerful multivariable analysis tool that can provide us with a global optimum condition of the system and can reveal any possible interactions between the investigated experimental factors [19–21]..

Application of experimental design on determination of aluminum content in saline samples by adsorptive cathodic stripping voltammetry

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Response surface for the CCD for optimization of the deposition time and deposition potential.. Response surface for the CCD for optimization of the Calcon concentration and complexing time.. The predicted responses along with the residuals when using the full model by taking all the coefficients were calculated and the actual response as a function of predicted response was plotted.