Statistical optimisation of esterase from Salinicoccus roseus strain RF1H and its potential application in synthetic dye decolorisation

Author(s):  
Bhramar Dutta ◽  
Vinod Kumar Nigam ◽  
Anindya Sundar Panja ◽  
Smriti Shrivastava ◽  
Rajib Bandopadhyay
2016 ◽  
Vol 74 (6) ◽  
pp. 1386-1397 ◽  
Author(s):  
Behzat Balci ◽  
Fatma Elcin Erkurt

In the present study, Eucalyptus camaldulensis bark/magnetite composite (EBMC) was used for a potential application as a low-cost adsorbent for the removal of Reactive Black 5 (RB5). The adsorption experiments were performed with aqueous solution (RB5 + distilled water) and synthetic dye bath wastewater (SDBW) in order to investigate the potential application of EBMC in the textile industry. The effects of the various parameters, the initial dye concentration, the temperature, the pH, and the EBMC dosage on the adsorption were investigated. It was found that the adsorption capacity of EBMC increases by increasing the RB5 concentration and temperature and by decreasing the dosage of EBMC. 0.8 g EBMC was found to be sufficient for the removal of 250 mg/L RB5 from 150 mL SDBW with ∼85% removal efficiency. The Koble–Corrigan isotherm model described the adsorption process more effectively (R2 = 0.997) than the Langmuir, Freundlich, the Dubinin–Radushkevich and the Jovanovic isotherm models. The Langmuir isotherm predicted a 370.7 mg/g maximum adsorption capacity. The thermodynamic analysis showed that the adsorption of RB5 onto the EBMC was an endothermic process. The multiple linear regression analysis was used in order to determine the cumulative effects of independent variables on the adsorption capacity.


2009 ◽  
Vol 00 (00) ◽  
pp. 090513010017019-7
Author(s):  
Biagio Solarino ◽  
Giancarlo Di Vella ◽  
Thea Magrone ◽  
Felicita Jirillo ◽  
Angela Tafaro ◽  
...  

1966 ◽  
Vol 15 (01/02) ◽  
pp. 252-272
Author(s):  
K. M Moser ◽  
Mary Belle Frey

Summary1. Caseinolytic and fibrinolytic systems for assay of plasmin in fibrinolytic agents are described which are based upon the determinations of AE/min during the linear portion of the casein-plasmin and fibrin-plasmin reaction curves respectively. A " caseinolytic-rate " unit and “fibrinolytic-rate " unit of ÄE/min × 103 during the linear portion of the respective curves are proposed.2. Data are presented indicating that a reliably linear relationship exists between plasmin concentration and these caseinolytic - and fibrinolytic-rate units.3. Data comparing results obtained with the proposed assay techniques and previously-used casein and fibrinolytic techniques are presented.4. Formulae by which caseinolytic-rate and fibrinolytic-rate units can be roughly converted into Remmert-Cohen type plasmin units are offered.5. The theoretical and practical problems which have influenced development of assays for fibrinolytic components are discussed.6. The advantages of the plasmin “rate unit” techniques vis a vis existing assays are delineated.7. The potential application of the techniques to measurements other than the plasmin content of fibrinolytic agents is discussed.


2020 ◽  
Vol 25 (2) ◽  
pp. 95-109
Author(s):  
Sapnita Shinde ◽  
Saurabh Saxena ◽  
Vineeta Dixit ◽  
Atul K. Tiwari ◽  
Naveen K. Vishvakarma ◽  
...  

1988 ◽  
Author(s):  
James C. Birdsall ◽  
William J. Davies ◽  
Richard Dixon ◽  
Matthew J. Ivary ◽  
Gary A. Wigell

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