Foam-Mat Drying of Muskmelon

2015 ◽  
Vol 11 (1) ◽  
pp. 127-137 ◽  
Author(s):  
A. Sangamithra ◽  
V. Sivakumar ◽  
K. Kannan ◽  
Swamy Gabriela John
Keyword(s):  
Response Surface Methodology ◽  
Effective Diffusivity ◽  
Foam Density ◽  
Optimum Conditions ◽  
Foam Expansion ◽  
Box Behnken Design ◽  
Independent Variables ◽  
Foaming Process ◽  
Egg Albumen ◽  
Foam Drainage

Abstract The Box–Behnken design of experiments under response surface methodology (RSM) was used to optimize the foaming process for the development of foam mat-dried muskmelon powder. The independent variables were the concentration of egg albumen (EA), carboxymethyl cellulose (CMC) and whipping time (WT). The responses were foam density, foam drainage volume and foam expansion. The optimum conditions for foaming process were EA (11.59% w/w), CMC (0.59% w/w) and WT (3.97 min). The unfoamed muskmelon pulp took longer time to dry to the final moisture content of 2% d.b than foamed pulp. The effective diffusivity for the foamed muskmelon pulp was found to be higher than the unfoamed pulp. The unfoamed pulp resulted in a sticky and dark colored powder, whereas the foamed pulp had a free-flowing and light colored powder. The flaky and porous foam-dried product can be used as an ingredient in broad range of food products.

OPTIMIZATION OF PHYTOESTROGENS EXTRACTION FROM SOY GERM USING RESPONSE SURFACE METHODOLOGY

2021 ◽  
pp. 70-78
Author(s):  
Chau Le Minh
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Ethanol Concentration ◽  
Antioxidant Activities ◽  
Extraction Time ◽  
Optimum Conditions ◽  
Potential Health ◽  
Box Behnken Design ◽  
Independent Variables ◽  
Solid Ratio

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. The Box Behnken Design with five replicates at central point was applied. The four independent variables investigated in this experiment were extraction time (X1) 60-120 minutes, solvent/solid ratio (X2) 8-12, extraction pH (X3) 8-10, ethanol concentration (X4) 50-70%. The high coefficient values indicated that the variables were fitted to the regression for the total phytoestrogens (R2 = 0.9887). Optimum conditions for maximizing total crude phytoestrogen content were 90 minutes for the extraction time, 12/1 for the extraction ratio, 9 for the extraction pH, and 65%  for the ethanol concentration.

scholarly journals Optimization of biosorption of nickel(II) and cadmium(II) by indigenous seaweed Enteromorpha using response surface methodology

2015 ◽  
Vol 50 (2) ◽  
pp. 109-122 ◽  
Author(s):  
Gholamreza Tolian ◽  
Seyed Ali Jafari ◽  
Saeid Zarei
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Contact Time ◽  
Biomass Concentration ◽  
Langmuir Model ◽  
Optimum Conditions ◽  
Box Behnken Design ◽  
Biosorption Capacity ◽  
Independent Variables ◽  
Maximum Sorption

In the present paper, the biosorption capacity of an indigenous seaweed Enteromorpha sp. was assessed and compared for nickel(II) and cadmium(II) removal from aqueous solution. Response surface methodology based on Box–Behnken design was employed to achieve the optimum removal conditions as well as investigating the effects of some independent variables on the process performance. It was found that the maximum nickel(II) removal achieved was 87.16% under optimum conditions of pH 4.79, biomass concentration of 1,000 mg/L, contact time 70 min and temperature of 25 °C. For cadmium the optimum conditions were defined as pH 4.88, biomass concentration of 1,000 mg/L, contact time 50 min and temperature fixed at 65 °C which resulted in a maximum 75.16% removal. Equilibrium isotherm studies revealed that Freundlich and Langmuir models were more successful for describing nickel(II) and cadmium(II) biosorption data, respectively. The maximum sorption capacities of biomass, qmax, for nickel(II) and cadmium(II) were predicted as 250 and 167 mg/g, respectively, by the Langmuir model. The results suggest Enteromorpha seaweed as an eco-friendly and suitable biosorbent for nickel(II) and cadmium(II) removal from aqueous solutions.

scholarly journals Enzyme optimization to reduce the viscosity of pitanga (Eugenia uniflora L.) juice

2016 ◽  
Vol 19 (0) ◽  
Author(s):  
Ricardo Schmitz Ongaratto ◽  
Luiz Antonio Viotto
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Incubation Time ◽  
Regression Models ◽  
Incubation Temperature ◽  
Correlation Coefficients ◽  
Enzyme Concentration ◽  
Optimum Conditions ◽  
Activity Time ◽  
Independent Variables

Summary The aim of this work was to separately evaluate the effects of pectinase and cellulase on the viscosity of pitanga juice, and determine the optimum conditions for their use employing response surface methodology. The independent variables were pectinase concentration (0-2.0 mg.g–1) and cellulase concentration (0-1.0 mg.g–1), activity time (10-110 min) and incubation temperature (23.2-56.8 °C). The use of pectinase and cellulase reduced the viscosity by about 15% and 25%, respectively. The results showed that enzyme concentration was the most important factor followed by activity time, and for the application of cellulase the incubation temperature had a significant effect too. The regression models showed correlation coefficients (R2) near to 0.90. The pectinase application conditions that led to the lowest viscosity were: concentration of 1.7 mg.g–1, incubation temperature of 37.6 °C and incubation time of 80 minutes, while for cellulase the values were: concentration of 1.0 mg.g-1, temperature range of 25 °C to 35 °C and incubation time of 110 minutes.

Optimization of Protein Extraction from Fermented and Non Fermented Perah Seed by using Response Surface Methodology

2014 ◽  
Vol 68 (5) ◽  
Author(s):  
Hamimah Satirah Mazlan ◽  
, Ida Idayu Muhamad ◽  
Nor Diana Hassan ◽  
Nuraimi Azlan Hadi Tan
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Protein Extraction ◽  
Extraction Procedure ◽  
Surface Concentration ◽  
Protein Yield ◽  
Contour Plot ◽  
Box Behnken Design ◽  
Independent Variables ◽  
Degree Equation

The optimum protein extraction from fermented and non-fermented Perah seed (Elateriospermumtapos) was investigated using the response surface methodology (RSM). A box-behnken design with three independent variables which are NaOH concentration (6, 8 and 10%), extraction time (10, 20 and 30 minutes) and solvent/meal ratio (50:1, 100:1 and 150:1, v/w) was used to study the response of protein yield. A second-degree equation for independent and response variables was produced from simulation to obtain the contour plot graphs. The best protein extraction procedure from both fermented and non-fermented Perah seed was obtained at 5.5% of solvent extraction, 40:1 ratio of solvent/meal and at 32 minutes of reaction time. Surface concentration and ratio of solvent/meal were found to influence the protein yield from fermented seed; meanwhile only the solvent concentration influenced protein yield from non-fermented seed. The maximum protein yields for both fermented and non-fermented Perah seeds were 18.0 g/100g and 5.0 g/100g seed meal respectively.  

scholarly journals Obtaining process of interpolymeric complexes from lactalbumin, xanthan gum and pectin

2014 ◽  
Vol 17 (3) ◽  
pp. 213-220 ◽  
Author(s):  
Virginia Coimbra Zuvanov ◽  
Edwin Elard Garcia-rojas ◽  
Clitor Júnior Fernandes de Souza ◽  
Eliana da Silva Gulão ◽  
Luciano José Barreto Pereira
Keyword(s):  
Experimental Data ◽  
Response Surface Methodology ◽  
Experimental Design ◽  
Response Surface ◽  
Xanthan Gum ◽  
Optimization Process ◽  
Coefficient Of Determination ◽  
Optimum Conditions ◽  
Independent Variables ◽  
Nacl Concentration

In this work, the optimization process of interpolymeric complexes formation between lactalbumin and the polysaccharides xanthan gum and pectin was studied in order to define the optimum conditions for the complexes formation. For the experimental design, response surface methodology (RSM) for three independent variables was used. The optimum conditions for the complexes formation between lactalbumin and xanthan gum were: pH 6.6, NaCl concentration of 0.6 mol/L and xanthan gum concentration 0.083% w/v. And for the complexes formed between pectin and lactalbumin the conditions were: pH 6.6, NaCl concentration of 0.25 mol/L and pectin concentration of 0.113% w/v. The best fitted model for the experimental data was that corresponding to the complex xanthan gum-lactalbumin, whose coefficient of determination (R²) was 0.97.

Study on the Extraction Technique of Poly-methoxyflavonoids from Citrus Peels by Using Response Surface Methodology

2012 ◽  
Vol 560-561 ◽  
pp. 544-549
Author(s):  
Cheng Ping Li ◽  
Li Li Wang ◽  
Zai Su Jin ◽  
Lan Tang
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Biological Activities ◽  
Extraction Technique ◽  
Effect Of Temperature ◽  
Optimum Conditions ◽  
Box Behnken Design ◽  
Liquid Material ◽  
Citrus Peels

The objective of the present study is to extract polymethoxy flavonoids such as nobiletin and tangeretin possess several important biological activities ,and to make full of use citrus peels which to be waste or by-product to develop a feasible eco-friendly process to maximize the yield of nobiletin and tangeretin. Box-Behnken design (BBD) based on response surface methodology (RSM) was adopted to investigate the effect of temperature (°C), time (h) and liquid-material ratio (ml/g)on nobiletin and tangeretin extraction. Under the optimum conditions, Extraction yielded polymethoxy flavonoids content of more than 1.15mg/g

scholarly journals Optimization of Polystyrene Biodegradation using Response Surface Methodology (RSM) Measured by Simple Colorimetric Method

2019 ◽  
Vol 7 (4.14) ◽  
pp. 216
Author(s):  
T. K. Meng ◽  
D. Y.Y. Beng ◽  
A. S. Mohd Kassim ◽  
A. H. A. Razak ◽  
N. A. Mohd Fauzi
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Food Packaging ◽  
Colorimetric Method ◽  
Future Research ◽  
Blue Dye ◽  
Optimum Conditions ◽  
Significant Information ◽  
Independent Variables ◽  
Bacillus Aryabhattai

Nearly 280 kilotons of polystyrene (PS) waste being discarded yearly in Malaysia. Banning usage of PS food packaging aims to minimize this “white pollution”. However, the existing PS waste volume remains the same despite the termination of PS production. Therefore, this study has investigated the optimization of biodegradation of PS using isolated strain Bacillus aryabhattai as an alternative solution to the biodegradation of recalcitrant plastic. The effect of pH and temperature as independent variables were studied at three levels each (pH: 6, 7.5 and 9, temperature: 25 °C, 35 °C and 45 °C) under the designation by three level-factorial and analysed using response surface methodology (RSM) by Design Expert Version 10.0. The biodegradation activity of Bacillus aryabhattai was quantified using simple colorimetric method. Bacillus aryabhattai was inoculated on the dye PS-film and incubated under designed conditions. As a result of biodegradation, the entrapped methylene blue dye was released and measured photometrically. Optimum conditions for the highest reading of blue dye absorbance were obtained at pH 9 and temperature of 25ºC with the desirability of 75.9%. This study provides significant information on the biodegradation activity of Bacillus aryabhattai for future research that can be applied in waste management. 

scholarly journals Oxytetracycline Degradation by Heat-Activated Peroxydisulfate and Peroxymonosulfate Oxidation: Optimization by Box-Behnken Design

2021 ◽  
Author(s):  
Kubra Ulucan-Altuntas ◽  
Senem Yazici Guvenc ◽  
Emine Can-Güven ◽  
Fatih Ilhan ◽  
Gamze Varank
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Thermal Activation ◽  
Thermal Conditions ◽  
Box Behnken Design ◽  
Independent Variables ◽  
Ph Values ◽  
Wide Range ◽  
Alkaline Conditions ◽  
Prepared Response

Abstract This study investigates the removal of oxytetracycline performed by persulfate (PS) and peroxymonosulfate (PMS) processes. For this purpose, response surface methodology was used to examine the effectiveness of PS and PMS processes under both alkaline and thermal conditions. The effect of four independent variables, which were selected as pH, PS/PMS concentration, temperature, and time, were analyzed in a wide range. The working pH was between pH 3–11 to compare acidic and alkaline conditions, and the temperature was selected between 30 and 90°C to evaluate the effect of thermal activation of sulfate radicals for both processes. According to the results of prepared Response Surface Methodology (RSM) models, all four independent variables were determined to be highly significant for both PS and PMS. Especially in the PMS process, the highest PMS concentration was observed to complete degradation of OTC. The conditions for the highest removal were pH 9 and PS/PMS concentration was approximately 4mM for both processes, while the temperature and required time were 72.9°C and 75°C, 26.5 min and 20 min, for PS and PMS processes, respectively. PS process has higher kinetic constants at all pH values than the PMS process.

Development and digestion of resistant malate starch produced by l-malic acid treatment

RSC Advances ◽  
2016 ◽  
Vol 6 (98) ◽  
pp. 96182-96189 ◽  
Author(s):  
Shuang-Qi Tian ◽  
Zi-Liang Wang ◽  
Xin-Wei Wang ◽  
Ren-Yong Zhao
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Malic Acid ◽  
Resistant Starch ◽  
Acid Treatment ◽  
Mass Ratio ◽  
Optimum Conditions ◽  
Box Behnken Design

Resistant starch (RS) was esterified by l-malic acid, and the optimum conditions determined using a response surface methodology (RSM) based on a Box–Behnken design (BBD) were: temperature, 146 °C; pH, 1.46; time, 5.52 h; and mass ratio, 0.60.

scholarly journals Optimization of Polystyrene Biodegradation using Response Surface Methodology (RSM) Measured by Simple Colorimetric Method

2019 ◽  
Vol 7 (4.14) ◽  
pp. 216
Author(s):  
T. K. Meng ◽  
D. Y.Y. Beng ◽  
A. S. Mohd Kassim ◽  
A. H. A. Razak ◽  
N. A. Mohd Fauzi ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Food Packaging ◽  
Colorimetric Method ◽  
Future Research ◽  
Blue Dye ◽  
Optimum Conditions ◽  
Significant Information ◽  
Independent Variables ◽  
Bacillus Aryabhattai

Nearly 280 kilotons of polystyrene (PS) waste being discarded yearly in Malaysia. Banning usage of PS food packaging aims to minimize this “white pollution”. However, the existing PS waste volume remains the same despite the termination of PS production. Therefore, this study has investigated the optimization of biodegradation of PS using isolated strain Bacillus aryabhattai as an alternative solution to the biodegradation of recalcitrant plastic. The effect of pH and temperature as independent variables were studied at three levels each (pH: 6, 7.5 and 9, temperature: 25 °C, 35 °C and 45 °C) under the designation by three level-factorial and analysed using response surface methodology (RSM) by Design Expert Version 10.0. The biodegradation activity of Bacillus aryabhattai was quantified using simple colorimetric method. Bacillus aryabhattai was inoculated on the dye PS-film and incubated under designed conditions. As a result of biodegradation, the entrapped methylene blue dye was released and measured photometrically. Optimum conditions for the highest reading of blue dye absorbance were obtained at pH 9 and temperature of 25ºC with the desirability of 75.9%. This study provides significant information on the biodegradation activity of Bacillus aryabhattai for future research that can be applied in waste management.  

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