Addition of jabuticaba peel extract with antioxidant properties in biodiesel

Clemente, Marco Aurelio Jeanegitz; Marcheafave, Gustavo Galo; Silva, Heloisa Helena Pereira; Branco, Isadora Guilherme; Canesin, Edmilson Antônio; Mantovani, Ana Carolina Gomes; Chendynski, Letícia Thaís; Borsato, Dionísio

doi:10.1016/j.fuproc.2023.107678

Cited by 2 publications

(1 citation statement)

References 24 publications

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“…Increased the biodiesel induction period compared to the control to 14.31 h Decreased the rate constants at each evaluated temperature The oxidation process was nonspontaneous and endothermic in all assays [36] Palm The extract is a promising natural antioxidant for biodiesel [39] Waste cooking oil…”

Section: Oxidation Stability Kinetics Thermodynamicsmentioning

confidence: 99%

The Potential of Underutilized Plant Resources and Agricultural Wastes for Enhancing Biodiesel Stability: The Role of Phenolic-Rich Natural Antioxidants

Kahimbi,

Kichonge,

Kivevele

2023

International Journal of Energy Research

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Growing concerns about energy security and environmental sustainability have fueled demand for sustainable and renewable energy sources in recent years. Biodiesel, a renewable alternative to conventional fuels, has gained significant attention as a potential source of energy. However, the stability of biodiesel during storage and its susceptibility to oxidation remain major challenges. To address these issues, researchers have turned their focus to the utilization of natural antioxidants. Studies on sources of natural antioxidants, particularly those made from waste, such as food, have been extensively conducted. However, there are still some restrictions, such as inconsistency in quality, the development of microbes, and difficulties with regulations, all of which have an impact on sustainability and the phenolic contents. Phenolic compounds are known for their excellent antioxidant properties and ability to inhibit the oxidation process. The review provides an overview of various underutilized plant resources and agricultural wastes that are rich in phenolic contents and demonstrate higher antioxidant activities, such as Vitex doniana, Uapaca kirkiana, Parinari curatellifolia, Tamarindus indica L, fruit peels, and crop residues. It discusses the extraction methods employed to obtain phenolic antioxidants from these sources and highlights their antioxidant activities. Additionally, the review examines the effects of phenolic antioxidants on key parameters, including induction period, peroxide value, acid value, and viscosity. The review concluded by highlighting the potential of underutilized plant resources and agricultural wastes as sustainable sources of phenolic-rich natural antioxidants for enhancing biodiesel stability. According to the literatures, phenolic antioxidants present in underutilized plant resources and agricultural wastes can chelate metal ions, scavenge free radicals, and break oxidation chain reactions, thereby preventing the degradation of biodiesel. Moreover, the limitation of the use of natural antioxidants in the stabilization of biodiesel like instability at high temperatures has been highlighted.

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Section: Oxidation Stability Kinetics Thermodynamicsmentioning

confidence: 99%

The Potential of Underutilized Plant Resources and Agricultural Wastes for Enhancing Biodiesel Stability: The Role of Phenolic-Rich Natural Antioxidants

Kahimbi,

Kichonge,

Kivevele

2023

International Journal of Energy Research

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Evaluation of the influence of chromium(III) ions and protoporphyrin IX on the oxidative stability of biodiesel

Gonçales Filho,

de Toledo,

Alves

et al. 2024

J Americ Oil Chem Soc

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This study aimed to investigate the impact of porphyrin complexes with Cr3+ on the oxidative stability of biodiesel. Specifically, it focused on assessing the induction period as well as the fluorescence and FTIR spectroscopy, kinetic and thermodynamic parameters of oxidation under varying temperature conditions. The concentration of the metal added in the biodiesel samples, with and without protoporphyrin IX (PPIX), was established based on previous literature. Oxidative stability tests were carried out at 105, 110, 115, and 120°C. The Cr3+ transition metal ion exhibited low catalytic activity in biodiesel oxidation reactions, and the tests without PPIX showed lower induction period values for all temperatures. PPIX exhibited antioxidant action, delaying both the initiation and propagation stages of chain reactions responsible for the formation of free radicals, thereby enhancing the stability of the biofuel even in the presence of Cr3+, when compared to the same test without the addition of the compound. The fluorescence intensity of PPIX decreased as a function of the contact time with the metal ion, and the FTIR analysis of the biodiesel with PPIX presented the most significant variations in the spectra. The tests containing PPIX at all temperatures presented lower values of reaction rate than the control samples, while the test without PPIX with Cr3+ ion resulted in higher k in comparison to control. The activation energy values ranged from 43.36 to 106.37 kJ mol−1. The results of thermodynamic parameters indicated greater stability for biodiesel containing PPIX, with enthalpy activation (ΔH‡) and entropy activation (ΔS‡) values of 103.16 kJ mol−1 and ‐52.61 J.K−1.mol−1, respectively.

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Addition of jabuticaba peel extract with antioxidant properties in biodiesel

Cited by 2 publications

References 24 publications

The Potential of Underutilized Plant Resources and Agricultural Wastes for Enhancing Biodiesel Stability: The Role of Phenolic-Rich Natural Antioxidants

The Potential of Underutilized Plant Resources and Agricultural Wastes for Enhancing Biodiesel Stability: The Role of Phenolic-Rich Natural Antioxidants

Evaluation of the influence of chromium(III) ions and protoporphyrin IX on the oxidative stability of biodiesel

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