Chemical composition of biodiesel produced in situ with Salvinia molesta DS Mitchell (Salviniaceae) by ethylic and methylic route

João Paulo de Aquino  Correia; Aricely Aparecida Silva Leite; Luciana Vincenzi Weber; Thiago Luis Aguayo de Castro; Dinorah Machado Vaz de Lima; Carmem Cí­cera Maria Silva; Claudia Andrea Lima Cardoso; Leila Cristina Konradt-Moraes

doi:10.4025/actascitechnol.v46i1.66010

Chemical composition of biodiesel produced in situ with Salvinia molesta DS Mitchell (Salviniaceae) by ethylic and methylic route

Authors

João Paulo de Aquino Correia Universidade do Estado de Mato Grosso do Sul https://orcid.org/0000-0002-1283-8930
Aricely Aparecida Silva Leite Universidade do Estado de Mato Grosso do Sul https://orcid.org/0000-0002-9018-6595
Luciana Vincenzi Weber Universidade do Estado de Mato Grosso do Sul https://orcid.org/0000-0002-2479-0655
Thiago Luis Aguayo de Castro Universidade do Estado de Mato Grosso do Sul https://orcid.org/0000-0002-8127-1990
Dinorah Machado Vaz de Lima Universidade do Estado de Mato Grosso do Sul https://orcid.org/0000-0001-7178-2511
Carmem Cícera Maria Silva Universidade Federal do Espírito Santo https://orcid.org/0000-0001-6986-4905
Claudia Andrea Lima Cardoso Universidade do Estado de Mato Grosso do Sul https://orcid.org/0000-0002-4907-0056
Leila Cristina Konradt-Moraes Universidade do Estado de Mato Grosso do Sul https://orcid.org/0000-0001-7574-8978

DOI:

https://doi.org/10.4025/actascitechnol.v46i1.66010

Keywords:

direct transesterification; fatty acid esters; gas chromatography; Infrared spectroscopy.

Abstract

Macrophytes are aquatic plants that can cause environmental and economic damage due to their rapid growth in eutrophicated environments; however, this characteristic makes these biomasses promising alternatives for biodiesel production. Thus, this study aims to characterize and evaluate the chemical composition of the biodiesel produced from the macrophyte Salvinia molesta DC Mitchell (Salviniaceae). The biodiesel production was carried out in situ through the ethyl and methyl process. Attenuated total reflectance-Fourier transform infrared spectroscopy (FTIR-ATR) and gas chromatography with a flame ionization detector (GC-FID) were used to characterize the product. A commercial sample was also analyzed for comparison purposes. The biofuel produced with ethanol and methanol showed characteristic peaks between 900 to 1300 cm^-1and 1750 to 1735 cm^-1in the FTIR-ATR. Both samples showed less unsaturation degree compared to the commercial sample, with 34.44% of monounsaturated compounds (MUFA) and 36.73% of polyunsaturated compounds (PUFA) for methylic biodiesel, 34.79% of MUFA and 36.89% of PUFA for ethylic biodiesel, and 55.34% of MUFA and 24.14% of PUFA for commercial biodiesel. Samples produced by both routes showed similar chemical composition, with higher contents of saturated compounds than the commercial sample. The average chain size and the number of double bonds are smaller for S. molesta samples, 17.38 and 1.15 for S. molesta biodiesels and 17.65 and 1.41 for commercial biodiesel, respectively. The chemical composition of S. molesta biodiesel demonstrates the potential to be an alternative to commercial biodiesel.

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Published

2024-04-17

How to Cite

Correia, J. P. de A. ., Leite, A. A. S., Weber, L. V., Castro, T. L. A. de, Lima, D. M. V. de, Silva, C. C. M., Cardoso, C. A. L., & Konradt-Moraes, L. C. (2024). Chemical composition of biodiesel produced in situ with Salvinia molesta DS Mitchell (Salviniaceae) by ethylic and methylic route. Acta Scientiarum. Technology, 46(1), e66010. https://doi.org/10.4025/actascitechnol.v46i1.66010

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Issue

Vol. 46 (2024): Em proceso

Section

Chemistry

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