Có 13+ tài liệu thuộc chủ đề "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. The four independent variables investigated in this experiment were extraction time (X minutes,...
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Application of response surface methodology to optimize the ultrasound-assisted flavonoid-rich extraction of fish mint. (Houttuynia cordata Thunb.). Introduction: Fish mint (Houttuynia cordata Thunb.) has been widely used in both traditional and modern medicine for a long time. In this research, we optimized the ultrasound- assisted extraction (UAE) of flavonoid-rich content from Houttuynia cordata Thunb. Conclusion: From these results, this study...
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Modeling and optimizing microwave-assisted extraction of antioxidant compounds from marigold (Calendula officinalis L.) using response surface methodology. Abstract: Calendula officinalis L. is a commercially important plant that finds application in the treatment of var- ious diseases in traditional medicine. At the optimum extraction condi- tions, the maximum yield of total phenolic content, total antioxidant capacity, and radical scavenging activity obtained...
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doi:10.3906/kim-2002-59 h t t p. H 2 O 2 and initial pH) on the simultaneous elimination of RB and AR14. The values of the regression coefficient for RB and AR14 were determined as 98.48 and 98.67 percent, respectively, revealing the reliability of the obtained polynomial models to predict decolorization efficiencies. 126.89 mg/L and pH = 3.71), degradation efficiencies of RB...
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In fact, 80% of the drugs developed during this time were chiral molecules [5].. When compared to the literature, it was observed that the reaction time decreased significantly. The outstanding nature of the lipases for accepting abundant substrates, preserving activity in organic solvents, enantioselectivity, efficiency even in mild reaction conditions, stability, lack of a cofactor requirement, easy availability, and relatively...
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Structural and adsorption behaviour of ZnO/aminated SWCNT-COOH for malachite green removal: face-centred central composite design. and observed the adsorption behaviour of malachite green onto their composites.. According to the literature research, no study has been found on the elimination of the MG from the aqueous media of the adsorbent synthesized using zinc oxide with functionalized SWCNT-COOH. This study investigated the...
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STATISTICAL OPTIMIZATION OF ALKALINE LIPASE PRODUCTION BY EXTREME HALOPHILIC ARCHEAN NATRIALBA ASIATICA. Tan et al., 2015b). They usually exhibit good chemoselectivity, regioselectivity, and enantioselectivity besides broad substrate specificity (Joseph et al., 2008). These daily growing applications lead to the demand for the lipases with new specificities and therefore the isolation of new lipases from new natural sources is increasing potential...
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dos Santos et al., 2007).. concentration, azo dyes present in the industrial effluent has a drastic influence on the aquatic ecosystem and severe health consequences in human being owing to its carcinogenic property (Tan et al., 2016). Singh et al., 2015). Besides, the exhaustive use of the highly reactive azo dyes in the textile industries resulting in development of severe...
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Optimization of synthesizing glucose 1-phosphate by sodium tripolyphosphate as a phosphorus acylating agent using response surface methodology. Abstract: 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...
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Diges- tion parameters were selected depending on the results of fractionation studies and optimized using a four-factor and five-level central composite design. The contributions of the phosphoric acid concentration (X 1. Thus, measured W levels showed the versatility of the central composite design in such a complex soil matrix for method development.. 4 On the other hand, the widespread usages...
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Abstract—Seed of rambutan as a waste of products from the canned fruit industry and was extracted by supercritical carbon dioxide (ScCO 2 ) using CO 2 as a solvent, maceration and soxhlet extraction using ethanol as the solvent. An optimization study of ScCO 2 extraction using response surface methodology was performed and 3D response surfaces were plotted from the mathematical...
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Abstract—Seed of rambutan as a waste of products from the canned fruit industry and was extracted by supercritical carbon dioxide (ScCO 2 ) using CO 2 as a solvent, maceration and soxhlet extraction using ethanol as the solvent. An optimization study of ScCO 2 extraction using response surface methodology was performed and 3D response surfaces were plotted from the mathematical...
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Response surface optimization and characteristics of rambutan (Nephelium lappaceum L.) kernel fat by hexane extraction. Rambutan kernel Fat extraction. 100 g), extraction time (2.3 e 10.7 h) and particle size (0.09 e 2.11 mm) on the fat yield from rambutan kernels using hexane extraction. The optimum conditions obtained from response surface analysis was 4.99 g/100 g mois- ture, 1.05 mm...