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Experimento com abacate, borra de café, licuri e leite de coco para extração de óleo, produção de biodiesel e análise espectral

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dc.contributor.author Cunha, Silvio
dc.contributor.author Rodrigues, Marina Costa
dc.contributor.author Mattos, Rosiene Reis
dc.contributor.author Teixeira, Leonardo Sena Gomes
dc.contributor.author Santos, Airam Oliveira
dc.contributor.author Santos, Elaine V.
dc.contributor.author Souza, Rauan S.
dc.contributor.author Andrade, Givaldo dos Santos
dc.contributor.author Paula, Rodrigo De
dc.contributor.author Jesus, Djane S. de
dc.date.accessioned 2022-04-11T11:49:26Z
dc.date.available 2022-04-11T11:49:26Z
dc.date.issued 2018
dc.identifier.citation CUNHA, S. et al. Experimento com abacate, borra de café, licuri e leite de coco para extração de óleo, produção de biodiesel e análise espectral. Química Nova, São Paulo, v. 41, n. 6, p. 691-698, 2018. pt_BR
dc.identifier.issn 1678-7064
dc.identifier.uri http://dx.doi.org/10.21577/0100-4042.20170213 pt_BR
dc.identifier.uri http://www.sbicafe.ufv.br/handle/123456789/13459
dc.description.abstract An undergraduate organic chemistry experiment for oil extraction and biodiesel production using alternative biomass was developed, whereby oils of avocado, coconut and spent coffee grounds were obtained and submitted to transesterification reaction with CH3OH under NaOH catalysis. Avocado and coffee oils were obtained by typical extraction and coconut oil was obtained through water evaporation of coconut milk in a domestic microwave oven. The commercial oil of licuri (Syagrus coronate), a Brazilian native biomass, was also converted to biodiesel. All four oils and four biodiesels were characterized by 1H-NMR and FTIR, and a comparative study of these spectra reveled that FTIR analyses alone provides enough information to discriminate between oil and biodiesel and confirm transesterification reaction. Besides, the unsaturation degree of all oils was determined by 1H-NMR. A mechanistic proposal concerning the role of NaOH catalysis is presented, excluding the sodium methoxide formation. pt_BR
dc.format pdf pt_BR
dc.language.iso pt_BR pt_BR
dc.publisher Sociedade Brasileira de Química pt_BR
dc.relation.ispartofseries Química Nova;v.41, n.6, 2018
dc.rights Open Access pt_BR
dc.subject Biodiesel pt_BR
dc.subject Transesterification pt_BR
dc.subject Undergraduate organic chemistry experiment pt_BR
dc.subject.classification Cafeicultura::Resíduos e subprodutos do café pt_BR
dc.title Experimento com abacate, borra de café, licuri e leite de coco para extração de óleo, produção de biodiesel e análise espectral pt_BR
dc.type Artigo pt_BR

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