Antioxidant properties of some plant extracts and effect of their addition on the oxidation stability of biodiesel
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2024-01-20 13:32
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Organic chemistry (484)
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KUZEMA, Pavlo, LAGUTA, Iryna, STAVINSKAYA, Oksana, ANISHCHENKO, Viktor, KRAMAR, Anastasiia, SMIRNOVA, Natalia, FESENKO, Teteiana, IVANNIKOV, Roman, LINNIK, Oksana. Antioxidant properties of some plant extracts and effect of their addition on the oxidation stability of biodiesel. In: Chemistry Journal of Moldova, 2023, nr. 2(18), pp. 35-44. ISSN 1857-1727. DOI: https://doi.org/10.19261/cjm.2023.1100
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Chemistry Journal of Moldova
Numărul 2(18) / 2023 / ISSN 1857-1727 /ISSNe 2345-1688

Antioxidant properties of some plant extracts and effect of their addition on the oxidation stability of biodiesel

DOI:https://doi.org/10.19261/cjm.2023.1100
CZU: 547

Pag. 35-44

Kuzema Pavlo1, Laguta Iryna1, Stavinskaya Oksana1, Anishchenko Viktor2, Kramar Anastasiia1, Smirnova Natalia1, Fesenko Teteiana1, Ivannikov Roman3, Linnik Oksana1
 
1 Chuiko Institute of Surface Chemistry, National Academy of Science of Ukraine,
2 L. M. Litvinenko Institute of Physical-Organic Chemistry and Coal Chemistry,
3 M. M. Gryshko National Botanical Garden of National Academy of Sciences of Ukraine
 
 
Disponibil în IBN: 26 decembrie 2023


Rezumat

The extracts from the leaves of Deschampsia antarctica É. Desv., Camelina sativa (L.) Crantz, and Camellia japonica L. plants, as well as from defatted Camelina sativa and Silybum marianum seedcakes were investigated as potential additives for improvement of biodiesel stability against oxidation. Composition of the extracts was studied by means of HPLC, and antioxidant properties were evaluated using the Folin-Ciocalteu assay and the DPPH test. The oxidation of biodiesel was monitored during the accelerated procedure at 43C, with the changes in the acid number of biodiesel samples being the criteria of this process. In spite of significant distinctions in the content of various phenolic compounds, all the extracts were found to possess high antioxidant activity and decelerate biodiesel oxidation by 9-26%. The data did not reveal a directly proportional relationship between the antioxidants content in the extract, on the one hand, and the enhancement in biodiesel stability, on the other hand; various extracts had different influence on the behaviour of biodiesel from rape and Camelina seed oils. The results obtained are consistent with the assumption that there is no universal stabilizer for different types of biodiesel and indicate the prospects on searching for novel antioxidants of natural origin to inhibit oxidative processes.

Cuvinte-cheie
plant extract, phenolic compound, antioxidant, biodiesel, oxidation stability