Optimization of a novel method for the conversion of tyrosol to hydroxytyrosol via catalytic process using statistical experimental design: kinetic study

2022 ◽  
Author(s):  
Soumaya Bouguerra Neji ◽  
Mohamed Bouaziz
Keyword(s):  
Experimental Design ◽  
Kinetic Study ◽  
Catalytic Process ◽  
Statistical Experimental Design ◽  
Novel Method

scholarly journals Development of a novel method for the in-situ dechlorination of immovable iron elements: optimization of Cl− extraction yield through experimental design

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Marco Veneranda ◽  
Nagore Prieto-Taboada ◽  
Jose Antonio Carrero ◽  
Ilaria Costantini ◽  
Aitor Larrañaga ◽  
...  
Keyword(s):  
Experimental Design ◽  
Optimization Design ◽  
Degradation Process ◽  
Extraction Yield ◽  
Alkaline Solutions ◽  
Iron Core ◽  
Total Consumption ◽  
Iron Leaching ◽  
Novel Method

AbstractThe conservation of iron objects exposed to marine aerosol is threatened by the formation of akaganeite, a highly unstable Cl-bearing corrosion phase. As akaganeite formation is responsible of the exfoliation of the rust layer, chlorides trigger a cyclic alteration phenomenon that often ends with the total consumption of the iron core. To prevent this degradation process, movable iron elements (e.g. archaeometallurgical artefacts) are generally immersed in alkaline dechlorination baths. Aiming to transfer this successful method to the treatment of immovable iron objects, we propose the in-situ application of alkaline solutions through the use of highly absorbent wraps. As first step of this novel research line, the present work defines the best desalination solution to be used and optimizes its extraction yield. After literature review, a screening experimental design was performed to understand the single and synergic effects of common additives used for NaOH baths. Once the most effective variables were selected, an optimization design was carried out to determine the optimal conditions to be set during treatment. According to the experimental work here presented, the use of 0.7 M NaOH solutions applied at high temperatures (above 50 °C) is recommended. Indeed, these conditions enhance chloride extraction and iron leaching inhibition, while promoting corrosion stabilization.

A Statistical Experimental Design to Plastein Synthesis with the Mixture of Soy Protein Isolate(SPI) Hydrolysate and Whey Protein Isolate(WPI) Hydrolysate

2011 ◽  
Vol 236-238 ◽  
pp. 2773-2779
Author(s):  
Ying Cao Xu ◽  
Zhi Biao Feng ◽  
Chun Hong Liu
Keyword(s):  
Experimental Design ◽  
Whey Protein ◽  
Soy Protein ◽  
Soy Protein Isolate ◽  
Whey Protein Isolate ◽  
Protein Isolate ◽  
Statistical Experimental Design ◽  
Operating Variables ◽  
Enzyme Substrate ◽  
Predicted Values

A statistical experimental design to plastein synthesis which was catalyzed by transglutaminase, using the mixture of soy protein isolate(SPI) hydrolysate and whey protein isolate (WPI) hydrolysate, was investigated. Enzyme/Substrate(E/S:5-25U/g), pH(5-9) and temperature (35-65°C) were selected as major operating variables. To investigate the effects of variables to yield of plastein, the statistical experiment of Box-Behnken design(BBD) and Response Surface methodology(RSM) was employed. Regression analysis showed that the experiment data accorded with the predicted values obtained from quadratic regression equation in BBD with R-Squared of 0.9866 and F-value of 102.51. The optimum results estimated by BBD were as follows: E/S(19.5U/g), pH(6.8), and temperature(50.0°C), gave a maximum plastein yield of 54%. In the present experiment, the preliminary study on plastein functions such as foaming, emulsifying, were showed that plastein had a good biological function.

Chitinase Production in Solid-State Fermentation by Enterobacter sp. NRG4 Using Statistical Experimental Design

2005 ◽  
Vol 51 (4) ◽  
pp. 222-228 ◽  
Author(s):  
Neetu Dahiya ◽  
Rupinder Tewari ◽  
Ram Prakash Tiwari ◽  
Gurinder Singh Hoondal
Keyword(s):  
Solid State ◽  
Experimental Design ◽  
Solid State Fermentation ◽  
Statistical Experimental Design ◽  
Chitinase Production

Statistical Experimental Design: BOD Tests

1971 ◽  
Vol 97 (4) ◽  
pp. 393-407
Author(s):  
Paul M. Berthouex ◽  
William G. Hunter
Keyword(s):  
Experimental Design ◽  
Statistical Experimental Design
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