Lipase-catalyzed acidolysis of sunflower oil: Kinetic behavior

Pacheco, Consuelo; Crapiste, Guillermo Hector; Carrín, María Elena

doi:10.1016/j.jfoodeng.2010.01.032

Cited by 12 publications

(6 citation statements)

References 16 publications

(27 reference statements)

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“…Parameters V max , K mTG , and K mA increased with increasing temperature. Similar trends in parameter values with temperature have been reported elsewhere …”

Section: Resultssupporting

confidence: 88%

“…Swarts et al and Dąbkowska and Szewczyk examined the effect of temperature on enzyme inactivation. The temperature dependence of kinetic parameters was reported by Berendsen et al for a lipase‐catalyzed hydrolysis reaction and by Pacheco et al for a lipase‐catalyzed acidolysis reaction. Both the kinetics study and reactor operation showed that Novozym 435 was not inhibited at high methanol concentrations and that the kinetics of the proposed enzymatic process could be compared to the conventional chemical process.…”

Section: Introductionmentioning

confidence: 64%

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Kinetic modelling of enzymatic biodiesel production from castor oil: Temperature dependence of the Ping Pong parameters

2016

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Biodiesel is considered an alternative replacement for petroleum diesel, and enzymatic reaction is one method for biodiesel production. Understanding the kinetics of this reaction is important to achieve higher production rates. The kinetics of transesterification of castor oil using Novozym 435 was investigated in this study. The genetic algorithm was employed for estimation of kinetic parameters including Vmax, KmTG, and KmA in the Ping Pong kinetic model at different temperatures. In most enzymatic reactions that follow the Ping Pong mechanism, inhibition by alcohol has been taken into consideration. Here, we examined a competitive inhibition mechanism and found no inhibition effect at high alcohol‐to‐oil molar ratios of 12.6, 15.6, and 18.9 mol/mol. Arrhenius expressions were used to fit the kinetic parameters for reaction temperatures of 30–50 °C. An acceptable agreement with experimental data at 45 °C was observed when biodiesel yields were predicted using the temperature‐dependent parameters, thus validating the proposed model.

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“…Parameters V max , K mTG , and K mA increased with increasing temperature. Similar trends in parameter values with temperature have been reported elsewhere …”

Section: Resultssupporting

confidence: 88%

Section: Introductionmentioning

confidence: 64%

Kinetic modelling of enzymatic biodiesel production from castor oil: Temperature dependence of the Ping Pong parameters

2016

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“…In the case of another kinetic model, among three condensed kinetic parameters, one reduced, another first increased and then decreased, and the third one remained almost constant with increasing temperature. In the case of the third kinetic model, all kinetic parameters first increased and then decreased with rising temperature in a moderate temperature range [111].…”

Section: Influence Of Temperature As Depicted By the Single-variable ...mentioning

confidence: 92%

Process Parameters Influence Product Yield and Kinetic Parameters in Lipase Catalysis

Bose,

Bhattacharjee,

Goswami

2023

ChemBioEng Reviews

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Effects of process parameters like enzyme concentration, concentration and type of substrate, pH, temperature, speed of agitation, and pressure on lipase catalysis are reviewed. The enzyme concentration controls its interfacial presence and consequently the rate of reaction. A change in substrate concentration alters lipase kinetics. Substrate‐lipase interaction varies with substrate type and pH. Water concentration and agitation affect the extent of interfacial area. Temperature impacts the rate and thermal denaturation of enzymes. Statistical optimization can solve the problem of controlling a variable's effect by other variables. Immobilization support and nonionic surfactant altered the significance of enzyme concentration. The lipase type controlled the impact of concentrations of enzyme, substrate, and water. The water content was important during lipase‐catalyzed hydrolysis and esterification. The mode of agitation influenced the significance of enzyme concentration and temperature. Time had a remarkable impact during hydrolysis. Temperature, substrate type, and chain length notably controlled kinetic parameters. This work paves the way for similar studies on other enzymes.

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“…shown in Steps 2 and 3 of Figure 2. Diacylglycerols (DAG) and monoacylglycerols (MAG) can also replace TAG to be used as ester (Naessens, 2012) in which it can produce side reactions and eventually by-products (Pancheco et al, 2010). Low level of water content is preferred in this reaction to avoid hydrolysis.…”

Section: Acidolysismentioning

confidence: 99%

Enzymatic Interesterification of Palm Fractions for the Production of Cocoa Butter Alternatives

Hassim¹

2018

JOPR

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Cocoa butter is the most preferable confectionery fat. In spite of this, cocoa butter alternatives (CBA) are also highly sought-after confectionery fats due to low supply and higher cost of cocoa butter. In the pursuit to produce palm-based CBA, various technological modification techniques have been employed. These include fractionation, blending, hydrogenation, interesterification (chemical and interesterification) or combination of these processes. Enzymatic interesterification (EIE) of lipids has received a lot of attention for the production of palm-based CBA especially cocoa butter equivalent. This review article, therefore, intends to offer an overview of EIE studies for the production of palm-based CBA. In this review, technological modification techniques are discussed in brief while publication related to EIE are discussed in depth based on its reactions categories (i.e. acidolysis, ester-ester exchange and alcoholysis). Reaction condition (i.e. subtrate, enzyme and optimum condition) and outcome of the EIE process are outlaid in this article.

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Lipase-catalyzed acidolysis of sunflower oil: Kinetic behavior

Cited by 12 publications

References 16 publications

Kinetic modelling of enzymatic biodiesel production from castor oil: Temperature dependence of the Ping Pong parameters

Kinetic modelling of enzymatic biodiesel production from castor oil: Temperature dependence of the Ping Pong parameters

Process Parameters Influence Product Yield and Kinetic Parameters in Lipase Catalysis

Enzymatic Interesterification of Palm Fractions for the Production of Cocoa Butter Alternatives

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