Comparative Study of VariousE. coliStrains for Biohydrogen Production Applying Response Surface Methodology

The proper strategy to establish efficient hydrogen-producing biosystems is the biochemical, physiological characterization of hydrogen-producing microbes followed by metabolic engineering in order to give extraordinary properties to the strains and, finally, bioprocess optimization to realize enhanced hydrogen fermentation capability. In present paper, it was aimed to show the utility both of strain engineering and process optimization through a comparative study of wild-type and genetically modifiedE. colistrains, where the effect of two major operational factors (substrate concentration and pH) on bioH2production was investigated by experimental design and response surface methodology (RSM) was used to determine the suitable conditions in order to obtain maximum yields. The results revealed that by employing the genetically engineeredE. coli(DJT 135) strain under optimized conditions (pH: 6.5; Formate conc.: 1.25 g/L), 0.63 mol H2/mol formate could be attained, which was 1.5 times higher compared to the wild-typeE. coli(XL1-BLUE) that produced 0.42 mol H2/mol formate (pH: 6.4; Formate conc.: 1.3 g/L).

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Comparative study on the optimization and characterization of soybean aqueous extract based composite film using response surface methodology (RSM) and artificial neural network (ANN)

Food Packaging and Shelf Life ◽

10.1016/j.fpsl.2021.100778 ◽

2022 ◽

Vol 31 ◽

pp. 100778

Author(s):

Ajesh Kumar V. ◽

Prem Prakash Srivastav ◽

M. Pravitha ◽

Muzaffar Hasan ◽

Shukadev Mangaraj ◽

...

Keyword(s):

Neural Network ◽

Artificial Neural Network ◽

Response Surface Methodology ◽

Comparative Study ◽

Composite Film ◽

Response Surface ◽

Aqueous Extract ◽

Artificial Neural ◽

Artificial Neural Network Ann

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Enzyme-assisted Extraction for Optimized Recovery of Phenolic Bioactives from Peganum hermala Leaves Using Response Surface Methodology

Current Topics in Nutraceutical Research ◽

10.37290/ctnr2641-452x.17:349-354 ◽

2018 ◽

Vol 17 (4) ◽

pp. 349-354

Author(s):

Qadir Rahman ◽

Anwar Farooq ◽

Amjad Gilani Mazhar ◽

Nadeem Yaqoob Muhammad ◽

Ahmad Mukhtar

Keyword(s):

Response Surface Methodology ◽

Response Surface ◽

Enzyme Concentration ◽

Coumaric Acid ◽

Assisted Extraction ◽

Pre Treatment ◽

Optimized Conditions ◽

Enzyme Complexes ◽

Hydrolysis Of ◽

Central Composite

This study investigates the effect of enzyme formulations (Zympex-014, Kemzyme dry-plus and Natuzyme) on recovery of phenolics from Peganum hermala (harmal) leaves, under optimized conditions using response surface methodology. As compared to the other enzyme complexes, the yield (34 g/100g) obtained through Zympex-014-assisted extraction was higher under optimized conditions such as time (75 min), temperature (70°C), pH (6.5) and enzyme concentration (5 g/100 g) using central composite design (CCD). Effectiveness of Zympex-014 towards hydrolysis of P. hermala leaves cell wall was examined by analyzing the control and enzyme-treated leave residues using scanning electron microscope (SEM). GC/MS characterization authenticated the presence of quercetin (1.44), gallic acid (0.23), caffeic acid (0.04), cinnamic acid (0.05), m-coumaric acid (0.23) and p-coumaric acid (0.37 μg/g) as the potent phenolics in Zympex-014 based extract. It can be concluded from the findings of the current work that pre-treatment of P. hermala leaves with Zympex-014 significantly enhanced the recovery of phenolics that supports its potential uses in the nutra-pharamaceutical industry.

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Synthesis and Characterization of pH-Sensitive Genipin Cross-Linked Chitosan/Eudragit® L100 Hydrogel for Metformin Release Study Using Response Surface Methodology

Current Drug Delivery ◽

10.2174/1567201815666180604111101 ◽

2018 ◽

Vol 15 (9) ◽

pp. 1343-1358 ◽

Cited By ~ 2

Author(s):

Muhammad Ubaid ◽

Syed Nisar Hussain Shah ◽

Shujaat Ali Khan ◽

Ghulam Murtaza

Keyword(s):

Response Surface Methodology ◽

Response Surface ◽

Ph Sensitive ◽

Synthesis And Characterization ◽

Release Study

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Modeling and optimization of mixing parameters using response surface methodology and characterization of palm oil clinker fine modified bitumen

Construction and Building Materials ◽

10.1016/j.conbuildmat.2021.123849 ◽

2021 ◽

Vol 298 ◽

pp. 123849

Author(s):

Nura Shehu Aliyu Yaro ◽

Madzlan Bin Napiah ◽

Muslich Hartadi Sutanto ◽

Aliyu Usman ◽

Saeed Modibbo Saeed

Keyword(s):

Response Surface Methodology ◽

Response Surface ◽

Palm Oil ◽

Modified Bitumen ◽

Modeling And Optimization ◽

Mixing Parameters

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Comparative study of response surface methodology and artificial neural network in the optimization of the ultrasound-assisted extraction of diarylheptanoid phytoestrogens from Curcuma comosa rhizomes

Chemical Engineering and Processing - Process Intensification ◽

10.1016/j.cep.2021.108461 ◽

2021 ◽

Vol 165 ◽

pp. 108461

Author(s):

Bancha Yingngam ◽

Abhiruj Navabhatra ◽

Wandee Rungseevijitprapa ◽

Chutinun Prasitpuriprecha ◽

Adelheid Brantner

Keyword(s):

Neural Network ◽

Artificial Neural Network ◽

Response Surface Methodology ◽

Comparative Study ◽

Response Surface ◽

Ultrasound Assisted Extraction ◽

Curcuma Comosa ◽

Assisted Extraction ◽

Ultrasound Assisted ◽

Artificial Neural

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Optimization and characterization of pulse electrodeposited nickel selenide nanostructure as a bifunctional electrocatalyst by response surface methodology

International Journal of Hydrogen Energy ◽

10.1016/j.ijhydene.2021.03.037 ◽

2021 ◽

Author(s):

S. Esmailzadeh ◽

T. Shahrabi ◽

Y. Yaghoubinezhad ◽

Gh. Barati Darband

Keyword(s):

Response Surface Methodology ◽

Response Surface ◽

Bifunctional Electrocatalyst ◽

Electrodeposited Nickel

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Optimization on Influencing Factors of Fracture Toughness of Corundum-Mullite Toughened by In Situ Synthesized Mullite Whiskers by Response Surface Methodology

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.581-582.819 ◽

2012 ◽

Vol 581-582 ◽

pp. 819-822 ◽

Cited By ~ 3

Author(s):

Bin Meng ◽

Jin Hui Peng

Keyword(s):

Fracture Toughness ◽

Response Surface Methodology ◽

Response Surface ◽

Response Surface Method ◽

Sintering Temperature ◽

Surface Method ◽

Mullite Whiskers ◽

Optimized Conditions ◽

Addition Amount

The corundum-mullite was toughened by in-situ synthesized mullite whiskers and the process parameters influencing the fracture toughness of corundum-mullite, such as sintering temperature, addition amount of AlF3 and V2O5, were optimized by means of response surface method. Corundum-mullite with fracture toughness of 9.44 MPa.m-1/2 could be obtained under the optimized conditions, i.e. sintering temperature of 1400°C, 4.8 wt.% of AlF3 and 5.8 wt.% of V2O5. The results showed that it was feasible to prepare corundum-mullite toughened by in-situ synthesized mullite whiskers by the optimized parameters. In addition, an accurate model based on response surface method was proposed to predict the experimental results.

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