| Full text | |
| Author(s): |
Pinheiro, Amanda C.
[1]
;
Goncalves, Andre B.
[1]
;
Baader, Wilhelm J.
[1]
;
Yamaguchi, Lydia F.
[1]
;
Malek, I, Naved
;
Bastos, Erick L.
[1]
;
El Seoud, Omar A.
[1]
Total Authors: 7
|
| Affiliation: | [1] Univ Sao Paulo, Inst Quim, Dept Quim, Sao Paulo, SP - Brazil
Total Affiliations: 1
|
| Document type: | Journal article |
| Source: | Química Nova; v. 41, n. 10, p. 1200-1204, DEC 2018. |
| Web of Science Citations: | 1 |
| Abstract | |
We developed a project during an undergraduate course (advanced experimental chemistry) on the microwave-assisted synthesis of biodiesel (BD), via base-catalyzed transesterification of coconut fat (CF) and soybean oil (SO) by ethanol, followed by product analysis by gas chromatography/mass spectrometry. Our goals were to introduce a problem with relevant socio-economic impact (production of BD); to discuss and compare methods for biofuel analysis, and to gain insight into transesterification mechanism as an important example of acyl-transfer reactions. Comparison of both BFs showed clear difference in fatty acid composition; that from CF contains shorter, saturated chains (mainly ethyl dodecanoate- and tetradecanoate), whereas biodiesel from SO is essentially composed of longer unsaturated chains (e.g., ethyl oleate and linoleate). The project takes eight hours to complete, is conceptually simple, being suitable for inclusion in the undergraduate science curriculum. (AU) | |
| FAPESP's process: | 13/18008-8 - Novel green solvents for cellulose: synthesis, properties and applications of gemini ionic liquids in cellulose chemistry |
| Grantee: | Naved Anjum Ibrahimbhai Malek |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 14/50316-7 - Dimensions US-Biota São Paulo: Chemically mediated multi-trophic interaction diversity across tropical gradients |
| Grantee: | Massuo Jorge Kato |
| Support Opportunities: | BIOTA-FAPESP Program - Thematic Grants |
| FAPESP's process: | 14/22136-4 - Use of green solvents and their mixtures for optimizing chemical processes |
| Grantee: | Omar Abou El Seoud |
| Support Opportunities: | Research Projects - Thematic Grants |