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Kinetics, thermodynamics and isotherm modelling of cloud point extraction of lycopene

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Title Kinetics, thermodynamics and isotherm modelling of cloud point extraction of lycopene
 
Creator D. Yadav, Rajendra
B. Dhamole, Pradip
 
Subject Cloud point extraction
Isotherm
Kinetics
Lycopene
Surfactant
Thermodynamics
 
Description 307-317
Present work investigates kinetics, thermodynamics and solubilization isotherm of cloud point extraction of lycopene
(CPEL) using non-ionic surfactant L62. The kinetics of CPEL has been found to follow pseudo second order with a
regression coefficient of 0.99. The experimental data have been fitted to Langmuir adsorption isotherm (R2 = 0.97) and
Freundlich adsorption isotherm (R2 = 0.96). Surfactant concentration required to extract a given amount of lycopene
predicted using Langmuir isotherm is comparable with experimental results (R2 = 0.96). Thermodynamic parameters
obtained for CPEL are: ΔH°= 86.22 kJ/mol and ΔS° = 0.290 kJ/mol K. ΔG° is negative for the investigated temperature
range (65-85 °C). Lycopene stability data in coacervate phase suggests that the rate of lycopene degradation is best
described by a second order kinetic model. Thus, the storage medium found to have influence on lycopene
degradation/isomerisation in the surfactant phase.
 
Date 2024-03-12T09:04:39Z
2024-03-12T09:04:39Z
2024-03
 
Type Article
 
Identifier 0975-0991 (Online); 0971-457X (Print)
http://nopr.niscpr.res.in/handle/123456789/63563
https://doi.org/10.56042/ijct.v31i2.9221
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJCT Vol.31(2) [March 2024]