Response surface methodology (RSM)
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In this study, methyl ester was produced through the transesterification of UCO using calcined eggshell as a heterogeneous base catalyst. The objectives of this study were to: (a) investigate the production of a renewable catalyst through eggshell calcination; (b) assess the effect of MeOH/UCO molar ratio, catalyst/ UCO catalyst content, and reaction temperature on the ester content in biodiesel; and (c) use response surface methodology (RSM) to design, analyze, and optimize experimental conditions.
8p vibego 02-02-2024 5 1 Download
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Tetrodotoxin analogues (TTXs) have been broadly applied in many fields. Viscera of pufferfish from Viet Nam was reported to contain a high level of TTXs, indicating a promising source for isolation of TTXs. In this work, critical factors affecting TTX recovery yield from pufferfish viscera collected from fishermen in the Can Gio coast of Viet Nam were optimized using response surface methodology (RSM).
7p vimarillynhewson 02-01-2024 5 3 Download
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The aim of this research is to investigate the effect of extrusion condition on the physical and function properties of soybean crud residue (SCR) base floating fish feed. Response surface methodology (RSM) a collection of a Statistical techniques use for experimental design, model development, evaluating impact and effect of factors on responses, optimization of factors condition and level desirability was used to assess the aim and objectives of this research work.
15p viisac 23-09-2023 3 1 Download
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Response surface methodology (RSM) was used to optimize ultrasonic-assisted extraction for total polyphenols from Artocarpus altilis based on single-factor experiment. The main factors, ultrasonic time, the liquid-solid ratio, the extraction temperature, the type of addition acid of single factor experiment was surveyed; the principle of design for 2 factors (extraction time and liquid-solid ratio) 2 levels response surface methodology was applied and the response surface optimization extraction conditions were studied.
4p viisac 23-09-2023 5 1 Download
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In this study, response surface methodology (RSM) was carried out with four parameters: chitosan concentration, AgNO3 concentration, ascorbic acid concentration, and time to obtain the minimum mean particle size of silver nanoparticles (response Y).
7p viberkshire 09-08-2023 3 2 Download
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Waste from Jackfruit has little economic value and often causes serious environmental problems. The conversion of jackfruit waste will help reduce waste treatment costs, provide a potential source of raw materials for the activated carbon (AC) and increase economic value. In this study, the ACs from the Jackfruit shell and pulp were synthesized by microwave assistance for removing organic dyes.
13p vidoctorstrange 06-05-2023 9 2 Download
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Production of inulin from yam bean tubers by ultrasonic assisted extraction (UAE) was optimized by using response surface methodology (RSM) and genetic algorithms (GA). Yield of inulin was obtained between 11.97%–12.15% for UAE and 11.21%–11.38% for microwave assisted extraction (MAE) using both the methodologies, significantly higher than conventional method (9.9 %) using optimized conditions.
11p viginny 30-12-2022 10 2 Download
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In the study "Optimization of total phenolic extraction of Chromolaena odorata leaf for antifungal activity against plant pathogens", microwave-assisted extraction (MAE) variables were optimized for the extraction of the phenolic compounds from Chromolaena odorata (C. odorata) by using a central composite design (CCD) of response surface methodology (RSM).
11p tieuvulinhhoa 22-09-2022 18 2 Download
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Around 200 different lipopeptides (LPs) have been identified to date, most of which are produced via Bacillus and Pseudomonas species. The clinical nature of the lipopeptide (LP) has led to a big surge in its research. They show antimicrobial and antitumor activities due to which mass-scale production and purification of LPs are beneficial. Response surface methodology (RSM) approach has emerged as an alternative in the field of computational biology for optimizing the reaction parameters using statistical models. In the present study, Pseudomonas sp.
16p langthannam 29-12-2021 10 0 Download
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With glucose as the starting material, sodium tripolyphosphate as the phosphorus acylating agent, and urea as the catalyst, glucose 1-phosphate was synthesized and its properties were analyzed. The synthesis conditions were selected according to the phosphorus content and optimized through the response surface methodology (RSM), based on a 3-level, 3-variable Box–Behnken experimental design.
10p langthannam 29-12-2021 6 0 Download
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In the present study, ZnO nanostructures were ultrasonically synthesized and immobilized on the surface of diatomite and used for visible light photocatalysis of Acid Red 88 (AR88) in the aqueous phase. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) analyses were employed for characterization of the samples. The process was optimized via response surface methodology (RSM) on the basis of central composite design (CCD).
13p langthannam 29-12-2021 8 0 Download
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In this study, piroxicam/β-cyclodextrin complexes are prepared in supercritical carbon dioxide (SC-CO2 ) in the solid state and the process was optimized using response surface methodology (RSM). UV-Vis spectroscopy, differential scanning calorimetry (DSC), Fourier-transform infrared spectroscopy (FTIR), and dissolution profile in water were used to characterized the complex under optimized temperature, residence time, moisture, and ternary agent.
6p princessmononoke 29-11-2021 10 1 Download
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Fish mint (Houttuynia cordata Thunb.) has been widely used in both traditional and modern medicine for a long time. Its flavonoid component has a variety of pharmacological effects that have been demonstrated in previous studies. In this research, we optimized the ultrasoundassisted extraction (UAE) of flavonoid-rich content from Houttuynia cordata Thunb. using response surface methodology - central composite design (RSM-CCD).
10p spiritedaway36 28-11-2021 5 0 Download
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Calendula officinalis L. is a commercially important plant that finds application in the treatment of various diseases in traditional medicine. The total antioxidant capacity, radical scavenging activity, and total phenolic content of marigold extracts were investigated by Folin, CUPRAC, and DPPH assays, respectively. The optimum operating conditions of microwave-assisted extraction (MAE) including temperature, extraction time, solvent-to-solid ratio, and solvent concentration were ascertained by employing response surface methodology (RSM).
15p tudichquannguyet 29-11-2021 13 0 Download
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As the enantiomers of 1-phenylethanol are valuable intermediates in several industries, the lipase catalyzed kinetic resolution of (R,S) -1-phenylethanol is a relevant research topic. In this study, the goal was to determine the optimum reaction parameters to produce enantiomerically pure 1-phenylethanol by lipase (Novozyme 435) catalyzed kinetic resolution using response surface methodology (RSM).
14p tudichquannguyet 29-11-2021 4 0 Download
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In this study, the carbon nanotube supported gold, bismuth, and gold-bismuth (Au/MWCNT, Bi/MWCNT, and Au-Bi/ MWCNT) nanocatalysts were prepared with NaBH4 reduction method at varying molar atomic ratio for glucose electrooxidation (GAEO). The synthesized nanocatalysts at different Au: Bi atomic ratios are characterized via x-ray diffraction (XRD), transmission electron microscopy (TEM), and N2 adsorption-desorption.
17p tudichquannguyet 29-11-2021 8 2 Download
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Usnic acid (UA) was extracted from Usnea longissima (L.) Ach. in supercritical carbon dioxide (SC-CO2 ) medium. The selected process parameters were extraction temperature (35–45 °C), amount of co-solvent (0%–5%) and extraction time (5–9 h). These parameters were applied to Box-Behnken design (BBD) belonging to response surface methodology (RSM) to determine optimum process parameters for the highest amount of UA in the extract. g UA/100g lichen, extraction yield % and UA content values were calculated in the range of 0.045–0.317, 2.77–5.
9p tudichquannguyet 29-11-2021 5 0 Download
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This study is an evidence in order to extract the highest polyphenol from green tea leaves in aqueous ethanol conditions. The response surface methodology (RSM) was used to optimize the extraction conditions of polyphenol. Four factors that effect to the extraction process are the concentration of ethanol, the solvent-material ratio, the temperature and time of extraction.
10p viuchinaga2711 25-10-2021 12 3 Download
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Phytoestrogens are phytochemicals with antioxidant activities and potential health benefits. 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.
9p vivelvet2711 06-09-2021 11 1 Download
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This research aimed at getting the optimum solvent dielectric constant and ratio teter leaves to solvents on the highest antioxidant activity of teter leaves extract. Response Surface Methodology (RSM) was used for the optimization of extraction conditions with the experimental design was a Central Composite Design (CCD) in two factors, namely solvent dielectric constant and ratio of teter leaves to solvent.
17p chauchaungayxua12 29-07-2021 14 2 Download