Authors:
M. L. S. De Melo LQF-DCF—CCS, Universidade Federal da Paraíba, Campus I, João Pessoa, PB, 58059-900, Brazil
LPBS-DQ-CCEN, Universidade Federal da Paraíba, Campus I, João Pessoa, PB, 58059-900, Brazil

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N. A. Santos LACOM-DQ-CCEN, Universidade Federal da Paraíba, Campus I, João Pessoa, PB, 58059-900, Brazil

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R. Rosenhaim DEQ-CT, Universidade Federal da Paraíba, Campus I, João Pessoa, PB, 58059-900, Brazil

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A. G. Souza LACOM-DQ-CCEN, Universidade Federal da Paraíba, Campus I, João Pessoa, PB, 58059-900, Brazil

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P. F. Athayde Filho LPBS-DQ-CCEN, Universidade Federal da Paraíba, Campus I, João Pessoa, PB, 58059-900, Brazil

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Abstract

Biodiesel has the advantage of being renewable and clean and for these reasons has been studied recently both academically and in industry. Research in this area is focused on developing new synthetic routes to obtain a purer product or to find new alternative sources of food to replace conventional oils. Papaya biodiesel is obtained from oily residues with a fatty acid composition similar to olive oil. It is generally discarded by the ton, considering that Brazil is the world’s largest producer of papaya with an annual output of 1,811 million tons, productivity of 52 t/hectare and domestic consumption at 86.5%. This study was designed by means of thermal analysis (TG, DSC, P-DSC, and MT-DSC), to verify the possibility of achieving high quality biodiesel, with oxidative stability and flow properties previously indicated by composition analysis of its fatty esters, physical–chemical properties (including oxidative stability) using classical methodology, recommended by ASTM D 6756.

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  • 2. Park, JY, Kim, DK, Lee, JP, Park, SC, Kim, YJ, Lee, JS. Blending effects of biodiesels on oxidation stability and low temperature flow properties. Bioresour Technol. 2008;99:11961203. .

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  • 3. Silva MCD , Da Silva LM, Santos NA, Conceição MM, Souza AG, Dos Santos AG. Study of ethylic Babassu biodiesel properties at low temperatures. J Therm Anal Calorim. 2011. .

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  • 4. Teixeira GAA , Maia AS, Santos IMG, Sousa AL, Souza AG, Queiroz N. Biodiesels from beef tallow/soybean oil/babassu oil blends. J Therm Anal Calorim. 2011. .

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  • 5. Daubdoub, MJ, Bronzel, JL. Biodiesel: visão crítica do status atual e perspectivas na academia e na indústria. Quim Nova. 2009;32:776792. .

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  • 6. Dunn, RO. Effect of antioxidants on the stability of methyl soyate (biodiesel). Fuel Process Technol. 2005;86:1071 .

  • 7. Instituto Adolfo Lutz. Normas Analíticas do Instituto Adolfo Lutz: métodos físicos e químicos para analise de alimentos. São Paulo 2005, 4 ed. IAL, v.1.

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  • 8. Azam MM , Waris A, Nahar NM. Prospects and potential of fatty acid methyl esters of some non-traditional seed oils for use as biodiesel in India. Biomass Energy. 2005;29:293302.

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  • 10. Puangsri, T, Abdulkarim, SM, Ghazali, HM. 2005 Properties of Carica papaya L. (papaya) seed oil following extractions using solvent and aqueous enzymatic methods. J Food Lipids. 12:6276. .

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  • 11. Winayaanuwattikun, P, Kaewpiboon, C, Piriyakananon, K, Supalak, T, Weerasak, T, Chulaksananukul, W, Yongvanich, T. Potential plant oil feedstock for lípase-catalysed biodiesel in Thailand. Biomass Energy. 2008;32:12791286. .

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  • 12. Santos, NA, Tavares, MLA, Rosenheim, R, FC Silva Jr, Fernandes, VG, Santos, IMG. Thermo-oxidative stability and cold flow properties of babassu biodiesel by PDSC and TMDSC techniques. J Therm Anal Calorim. 2009;97:611614. .

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  • 13. Dunn, RO. Crystallization behavior of fatty acid methyl esters. J Am Oil Chem Soc. 2008;85:961972. .

  • 14. Knothe, G. Dependence of biodiesel fuel properties on the structure of fatty acid alkyl esters. Fuel Process Technol. 2005;86:10591070. .

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  • 15. Candeia RA , Sinfrônio FSM, Bicudo TC, Queiroz N, Barrosfilho AKD, Soledade LEB, Santos IMG, Souza AL, Souza AG. Influence of the storage on the thermo-oxidative stability of methyl and ethyl esters by PDSC. J Therm Anal Calorim. 2011. .

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  • 16. Ferrari, RA, Da Oliveira, VS, Scabio, A. Oxidative stability of biodiesel from soybean oil fatty acid ethyl esters. Sci Agric (Piracicaba, Brasil). 2005;62:291295.

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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