Investigation of curcumin antioxidant efficiency on oxidation stability of biodiesel from soybean oil and beef tallow, contaminated with metals: Kinetic and storage studies

Santos Sonnemberg, M.N.; Souza, E.F.; Ventura, M.; Simionatto, E.; Fiorucci, A.R.

doi:10.1016/j.fuel.2024.131520

Fuel

2024

DOI: 10.1016/j.fuel.2024.131520

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Investigation of curcumin antioxidant efficiency on oxidation stability of biodiesel from soybean oil and beef tallow, contaminated with metals: Kinetic and storage studies

M.N. Santos Sonnemberg,

E.F. Souza,

M. Ventura

et al.

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Cited by 5 publications

References 32 publications

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Kinetics and energetics of biodiesel oxidation stability: The impact of Uapaca kirkiana‐derived natural antioxidants

Kahimbi,

Kichonge,

Kivevele

2024

Biofuels Bioprod Bioref

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Despite considerable progress in understanding biodiesel autoxidation inhibition, the kinetics and energetics of the inhibition reactions involving natural antioxidants remain underexplored. Most existing research on natural antioxidants has focused on enhancing oxidation stability and other fuel properties. This study aimed to investigate the oxidative stability of croton biodiesel (CBD) and assess the kinetics and energetics of natural antioxidants derived from the roots, pulp, and fruit peels of the Uapaca kirkiana plant. The oxidation stability of biodiesel samples was assessed using the OXITEST method at temperatures of 90, 100, 110, and 120 °C. These tests enabled the calculation of kinetic parameters such as reaction rates and activation energies, crucial for understanding the inhibition role of antioxidants during oxidative degradation. Activation energy for antioxidant consumption, determined using the Arrhenius equation, was found to be 81.39 kJ mol−1 for fruit peel extracts, 77.73 kJ mol−1 for pulp extracts, and 63.85 kJ mol−1 for root bark extracts. The higher activation energy for fruit peel extracts suggests that they are more effective at preventing oxidation, especially under high‐temperature conditions. Enthalpy, entropy, and Gibbs free energy parameters were calculated using the Eyring equation, indicating a nonspontaneous endothermic process for the antioxidant samples. The study found an inverse relationship between antioxidant concentration and rate constants, demonstrating the antioxidants' effectiveness in slowing down the oxidation process. These kinetics and energetics analyses provide detailed insights into how antioxidants function, facilitating the optimization, selection, and validation of their efficiency in stabilizing biodiesel.

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Kinetics and energetics of biodiesel oxidation stability: The impact of Uapaca kirkiana‐derived natural antioxidants

Kahimbi,

Kichonge,

Kivevele

2024

Biofuels Bioprod Bioref

View full text Add to dashboard Cite

show abstract

Visual research on spray and low temperature combustion of biodiesel/ethanol/water micro-emulsified fuels

Chen,

Ji,

Zhang

et al. 2025

Energy Conversion and Management

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Effect of reduced flaxseed cyclic peptide [1–9-NαC]-linusorb B2 (CLB) and its oxidized form on the oxidative stability of flaxseed oil

Deng,

Li,

Luo

et al. 2025

Food Chemistry

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Investigation of curcumin antioxidant efficiency on oxidation stability of biodiesel from soybean oil and beef tallow, contaminated with metals: Kinetic and storage studies

Cited by 5 publications

References 32 publications

Kinetics and energetics of biodiesel oxidation stability: The impact of Uapaca kirkiana‐derived natural antioxidants

Kinetics and energetics of biodiesel oxidation stability: The impact of Uapaca kirkiana‐derived natural antioxidants

Visual research on spray and low temperature combustion of biodiesel/ethanol/water micro-emulsified fuels

Effect of reduced flaxseed cyclic peptide [1–9-NαC]-linusorb B2 (CLB) and its oxidized form on the oxidative stability of flaxseed oil

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