Preparation of Foaming Agent by Modification Protein from Pea Meal

2011 ◽  
Vol 396-398 ◽  
pp. 811-816
Author(s):  
Ji Chuan Huo ◽  
Yan Hong Yuan ◽  
Cheng Wang ◽  
Chang Dong Xie
Keyword(s):  
Response Surface Methodology ◽  
Optimum Condition ◽  
Optimal Condition ◽  
Response Surface ◽  
Reaction Temperature ◽  
Foam Stability ◽  
Raw Material ◽  
Foaming Agent ◽  
Modification Process ◽  
Protein Foam

Pea meal was used as raw material to prepare protein foam agent. The parameters containing concentration of Ca(OH)2, reaction temperature and time were investigated and optimized by the response surface methodology in the modification process of foam agent. The optimum condition was obtained that the concentration of Ca(OH)2 0.78%, reaction temperature 92°C and 4 hours for extraction time. Under the optimal condition, the maximum forecasting foam stability was 16.2h and the verified value was 16.16h which relative error was 0.25% through confirmative test.

scholarly journals Optimasi Kondisi Proses Pembuatan Manisan Kering Cabai Merah (Capsicum annuum L.) dengan Menggunakan Response Surface Methodology (RSM)

2018 ◽  
Vol 4 (2) ◽  
Author(s):  
Hisworo Ramdani ◽  
Noli Novidahlia ◽  
Ulif Yuhana
Keyword(s):  
Response Surface Methodology ◽  
Vitamin C ◽  
Optimum Condition ◽  
Optimal Condition ◽  
Response Surface ◽  
Capsicum Annuum ◽  
Sugar Solution ◽  
Two Factors ◽  
Sensory Color ◽  
Test Color

The aims of the research were to determine the optimum condition of  submerging time in 2% CaCl2 and various sugar solutions on sweetened dried red chili characteristics using Response Surface Methodology (RSM). Red chili were  submerged in 2% CaCl2 for 8, 10, 15, 20, and 22 minutes, and in 56%, 60% 70%, 80% and 84% sugar solutions.  The output combination of two factors are 13 run units.  The analysis included physics (color), chemical (moisture, vitamin C, total sucrose), hedonic test (color, taste, texture), descriptive test (color, sweetness, spiciness, texture).  The results showed that submerged time in 2% CaCl2 had significant effect on sweetness of sweetened dried red chili. The optimal condition processing of sweetened dried red chili was reached on combination of submerged time in 2% CaCl2 8 minutes and in 74% sugar solution with chroma 21.16, moisture 8.88 % db, vitamin C 9.34 mg/100 g, total sucrose  50°Brix,  hedonic score: color 5.03 (rather like), taste 4.43 (neutral), texture 4.42 (neutral), and descriptive sensory: color 5.24 (rather red), sweetness 4.05 (neutral), spiciness 5.05 (rather spicy), and texture 4.53 (rather rubbery).Keywords: optimization, sweetened, red chili, RSM

Optimizing Alkali Pretreatment of Oil Palm Empty Fruit Bunch for Ethanol Production by Application of Response Surface Methodology

2012 ◽  
Vol 622-623 ◽  
pp. 117-121 ◽  
Author(s):  
Sairudee Duangwang ◽  
Chayanoot Sangwichien
Keyword(s):  
Response Surface Methodology ◽  
Reaction Time ◽  
Response Surface ◽  
Reaction Temperature ◽  
Oil Palm ◽  
Low Cost ◽  
Raw Material ◽  
Temperature Reaction ◽  
Empty Fruit Bunch ◽  
Alkali Pretreatment

Oil palm empty fruit bunch (OPEFB) is a potential source of cellulose which can serve as a promising raw material for the production of ethanol. The increasing interest on use of lignocellulosic waste for bioconversion to fuels and chemicals are justifiable as these materials are low cost, renewable and widespread sources of sugars. The objective of the present study was to determine the effect of NaOH concentration, reaction temperature and reaction time for alkali pretreatment to increase the amount of cellulose for hydrolysis to achieve high glucose yield. Batch reactions were carried out under various reaction temperature, reaction time and NaOH concentration. Response Surface Methodology (RSM) was followed to optimize the alkali pretreatment in order to obtain high amount of cellulose (%). The optimum reaction temperature, reaction time and NaOH concentration were found to be 130 ˚c, 40 min and 15% (w/v), respectively. The maximum value of cellulose was obtained 68.8% by using the above condition. 19.96 g/L glucose was achieved when reaction was carried out at 130 ˚c for time period of 90 min when 6% (w/v) of H2SO4 concentration maintained.

scholarly journals A Response Surface Methodology (RSM) Approach for Optimizing the Attenuation of Human IgE-Reactivity to β-Lactoglobulin (β-Lg) by Hydrostatic High Pressure Processing

Foods ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1741
Author(s):  
Xin Sun ◽  
Jialing Vivien Chua ◽  
Quynh Anh Le ◽  
Francisco Trujillo ◽  
Mi-Hwa Oh ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Optimal Condition ◽  
Response Surface ◽  
High Pressure Processing ◽  
Molecular Structures ◽  
Holding Time ◽  
P Value ◽  
Molecular Change ◽  
Ige Reactivity ◽  
Β Lactoglobulin

The response surface methodology (RSM) and central composite design (CCD) technique were used to optimize the three key process parameters (i.e., pressure, temperature and holding time) of the high-hydrostatic-pressure (HHP) processing either standalone or combined with moderate thermal processing to modulate molecular structures of β-lactoglobulin (β-Lg) and α-lactalbumin (α-La) with reduced human IgE-reactivity. The RSM model derived for HHP-induced molecular changes of β-Lg determined immunochemically showed that temperature (temp), pressure (p2) and the interaction between temperature and time (t) had statistically significant effects (p < 0.05). The optimal condition defined as minimum (β-Lg specific) IgG-binding derived from the model was 505 MPa at 56 °C with a holding time of 102 min (R2 of 0.81 and p-value of 0.01). The validation carried at the optimal condition and its surrounding region showed that the model to be underestimating the β-Lg structure modification. The molecular change of β-Lg was directly correlated with HHP-induced dimerization in this study, which followed a quadratic equation. The β-Lg dimers also resulted in the undetectable human IgE-binding.

Optimization of Magnesium Separation and Extraction from Boron Slurry Using Response Surface Methodology

2011 ◽  
Vol 366 ◽  
pp. 366-369
Author(s):  
Feng Gao ◽  
Rong Fu ◽  
Ming Yang Qian ◽  
Zhu Min Wang ◽  
Xiang Zhang
Keyword(s):  
Response Surface Methodology ◽  
Reaction Time ◽  
Factorial Design ◽  
Response Surface ◽  
Reaction Temperature ◽  
Fractional Factorial Design ◽  
Design Criterion ◽  
Fractional Factorial ◽  
Effective Factors

Response surface methodology was used to optimize the soaking Mg leaching ratio from the boron slurry screened by 25 fractional factorial design. Five effective factors such as H2SO4 concentrations, reaction time, reaction temperature and stir velocity were tested by using 25 fractional factorial design criterion and three effective factors H2SO4 concentrations, reaction time and reaction temperature showed significant effect(P2SO4 concentrations of 0.29mol/l, reaction time of 90 min and reaction temperature of 50°C. Three runs of additional confirmation experiments were conducted. The mixture magnesium leaching value was 58.20%.

Optimization of the Ultrasonic Extraction of Gypenoside III from Gynostemma pentaphyllum by Response Surface Methodology

2012 ◽  
Vol 550-553 ◽  
pp. 1866-1870
Author(s):  
Xiao Dan Tang ◽  
Hai Yang Hang ◽  
Shao Yan Wang ◽  
Jing Xiang Cong
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Extraction Yield ◽  
Raw Material ◽  
Extraction Temperature ◽  
Optimal Conditions ◽  
Gynostemma Pentaphyllum ◽  
Bioactive Component ◽  
Yield Value ◽  
Ultrasonic Time

Gypenosides III is a major bioactive component which is rich in Gynostemma pentaphyllum. For better utilization of the native resource, response surface methodology was used to optimize the extraction conditions of gypenosides III from G. pentaphyllum. The effects of three independent variables on the extraction yield of gypenosides III were investigated and the optimal conditions were evaluated by means of Box-Behnken design. The optimal conditions are as follows: ratio of ethanol to raw material 25, extraction temperature 58°C and ultrasonic time 25min. Under these conditions, the yield of gypenoside III is 1.216±0.05%, which is agreed closely with the predicted yield value.

scholarly journals Optimization of Synthesis of Seleno-Sargassum fusiforme(Harv.) Setch. Polysaccharide by Response Surface Methodology, Its Characterization, and Antioxidant Activity

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Yu-Bin Ji ◽  
Fang Dong ◽  
Miao Yu ◽  
Long Qin ◽  
Dan Liu
Keyword(s):  
Antioxidant Activity ◽  
Response Surface Methodology ◽  
Reaction Time ◽  
Response Surface ◽  
Reaction Temperature ◽  
Sargassum Fusiforme ◽  
Synthesis Conditions ◽  
Optimum Reaction ◽  
Series Of Experiments

The response surface methodology was employed to optimize the synthesis conditions of seleno-Sargassum fusiforme(Harv.) Setch. polysaccharide. Three independent variables (reaction time, reaction temperature, and ratio of Na2SeO3to SFPSI) were tested. Furthermore, the characterization and antioxidant activity of Se-SFPSIin vivowere investigated. The result showed that the actual experimental Se content of Se-SFPSI was 3.352 mg/g at the optimum reaction conditions of reaction time 8 h, reaction temperature 71°C, and ratio of Na2SeO3to SFPSIB 1.0 g/g. A series of experiments showed that the characterization of Se-SFPSIB was significantly different from that of SFPSIB. Additionally, antioxidant activity assay indicated that the Se-SFPSIB could increase catalase (CAT), superoxide dismutase (SOD), and glutathione peroxidase (GSH-Px) activity of mice bearing tumor S180in blood, heart, and liver while decreasing malondialdehyde (MDA) levels. It can be concluded that selenylation is a feasible approach to obtain seleno-polysaccharide which was utilized as highly biological medicine or functional food.

scholarly journals Optimization of Eugenol Extraction from Clove Oil using Response Surface Methodology

2015 ◽  
Vol 9 (11) ◽  
pp. 68
Author(s):  
Widayat Widayat ◽  
Hadiyanto Hadiyanto ◽  
Bambang Cahyono ◽  
Ngadiwiyana Ngadiwiyana
Keyword(s):  
Response Surface Methodology ◽  
Optimum Condition ◽  
Central Composite Design ◽  
Response Surface ◽  
Design Method ◽  
Main Process ◽  
Clove Oil ◽  
Design Variables ◽  
Central Composite

The objective of this research was to obtain optimum condition of eugenol production from clove oil using a central composite design method. The main process occured in the eugenol production was saphonification and neutralization processes. In order to optimize these processes, the ratio of NaOH/clove oil and temperature were studied as design variables i.e. ratio of NaOH/clove oil=1:2.5-1:3.5 while temperature was varied between 40 and 60oC. The yield of eugenol was considered as the main response in of this experiment. The result showed that the optimum condition was achieved when the temperature and the ratio of NaOH/clove oil were 50oC and 2.75:1, respectively and the yield was 39.17%.<br />

Optimization of Microwave Extraction Process by Response Surface Methodology of Flavonoids from Tussilago farfara L.

2013 ◽  
Vol 763 ◽  
pp. 246-249
Author(s):  
Xiao Song ◽  
Peng Zhao
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Microwave Power ◽  
Extraction Process ◽  
Raw Material ◽  
Extraction Time ◽  
Microwave Extraction ◽  
Water Solvent ◽  
Tussilago Farfara ◽  
Optimum Extraction

Flavonoids from Tussilago farfara L. was extracted with the assistance of microwave.Box-Behnken design (BBD) was employed to optimize extraction time; microwave power and ratio of water to raw material to obtain a high flavonoids yield.The optimum extraction conditions were as follows: 73.3% ethanol-water solvent, time 16.25 min and ratio of solvent to raw material 36.2ml/g.The yield of flavonoids was 11.37% based on the above mentioned conditions.

scholarly journals Synthesis of flexible polyurethane foam for applications in planar orthosis using the response surface methodology

2020 ◽  
pp. 1-4
Author(s):  
Jorge Alejandro TORRES-OCHOA ◽  
Nadia Renata OSORNIO-RUBIO ◽  
Orlando CORTAZAR-MARTINEZ ◽  
Victor Alfonso MORALES-NIETO
Keyword(s):  
Response Surface Methodology ◽  
Design Of Experiments ◽  
Response Surface ◽  
Polyurethane Foam ◽  
Reaction Temperature ◽  
Foam Formulation ◽  
Flexible Polyurethane Foam ◽  
Flexible Polyurethane ◽  
Response Variables ◽  
Foaming Time

In this work, the process for the formulation of flexible polyurethane foam is presented following a design of experiments for mixtures. The proportion of polyol, diisocyanate, and crosslinker was considered as factors. The response variables considered were foaming time and reaction temperature. The result of the experiments showed that there is an area where the foam formulation is better. This zone is closed with 5% crosslinker, 50% polyol, and 45% diisocyanate, in this formulation denser foams with more uniform bubbles were obtained

scholarly journals Optimization of Enzymatic Synthesis of Betulinic Acid Amide in Organic Solvent by Response Surface Methodology (RSM)

2019 ◽  
Vol 19 (4) ◽  
pp. 849
Author(s):  
Nurul Atikah Amin Yusof ◽  
Nursyamsyila Mat Hadzir ◽  
Siti Efliza Ashari ◽  
Nor Suhaila Mohamad Hanapi ◽  
Rossuriati Dol Hamid
Keyword(s):  
Response Surface Methodology ◽  
Reaction Time ◽  
Response Surface ◽  
Reaction Temperature ◽  
Betulinic Acid ◽  
Enzymatic Synthesis ◽  
Acid Amide ◽  
Molar Ratio ◽  
Percentage Yield ◽  
Substrate Molar Ratio

Optimization of the lipase catalyzed enzymatic synthesis of betulinic acid amide in the presence of immobilized lipase, Novozym 435 from Candida antartica as a biocatalyst was studied. Response surface methodology (RSM) and 5-level-4-factor central-composite rotatable design (CCRD) were employed to evaluate the effects of the synthesis parameters, such as reaction time (20–36 h), reaction temperature (37–45 °C), substrate molar ratio of betulinic acid to butylamine (1:1–1:3), and enzyme amounts (80–120 mg) on the percentage yield of betulinic acid amide by direct amidation reaction. The optimum conditions for synthesis were: reaction time of 28 h 33 min, reaction temperature of 42.92 °C, substrate molar ratio of 1:2.21, and enzyme amount of 97.77 mg. The percentage yield of actual experimental values obtained 65.09% which compared well with the maximum predicted value of 67.23%. The obtained amide was characterized by GC, GCMS and 13C NMR. Betulinic acid amide (BAA) showed a better cytotoxicity compared to betulinic acid as the concentration inhibited 50% of the cell growth (IC50) against MDA-MB-231 cell line (IC50 < 30 µg/mL).

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