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| Registros recuperados : 43 | |
| 5. |  | GUEDES, A. M. M.; ANTONIASSI, R.; GALDEANO, M. C.; GRIMALDI, R.; WILHELM, A. E. Interesterificación del aceite de pequi. In: WORLD CONGRESS ON OILS & FATS AND ISF LECTURESRIP SERIES 31.; CONGRESSO LATINOAMERICANO DE GRASAS Y ACEITES, 16., 2015, Rosario. Evolución, inovacion y desafíos hacia un futuro sustentable: Proceedings... Rosario: AGA World Congress, 2015. 1 p. Poster 222. Organização: The International Society for Fat Research, Asociación Argentina de Grasas y Aceites, Latin American - American Oil Chemists' Society. Título em inglês: Interesterification of pequi oil.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 6. | | GUEDES, A. M. M.; ANTONIASSI, R.; GALDEANO, M. C.; GRIMALDI, R.; WILHELM, A. E. Propriedades físicas del aceite de pequi interesterificado. In: WORLD CONGRESS ON OILS & FATS AND ISF LECTURESRIP SERIES 31.; CONGRESSO LATINOAMERICANO DE GRASAS Y ACEITES, 16., 2015, Rosario. Evolución, inovacion y desafíos hacia un futuro sustentable: Proceedings... . Rosario: AGA World Congress, 2015. 1 p. Poster 221. Organização: The International Society for Fat Research, Asociación Argentina de Grasas y Aceites, Latin American - American Oil Chemists' Society.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 13. | | WILHELM, A. E.; REIS, S. L. R.; BACK, G. R.; GUEDES, A. M. M.; MACHADO, A. F. F.; ANTONIASSI, R. Effect of different screw press feed rates on extraction efficiency, quality parameters and fatty acid composition of passion fruit seed oil. In: LATIN AMERICAN CONGRESS AND EXHIBITION ON FATS AND OILS, 15., 2013, Santiago. Abstracts... Urbana: AOCS, 2013. p. 11, ref. 34.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 15. | | GUEDES, A. M. M.; ANTONIASSI, R.; GALDEANO, M. C.; GRIMALDI, R.; CARVALHO, M. G. DE; WILHELM, A. E. Physical and chemical characterization of interesterified Brazilian Pequi oil. In: AOCS ANNUAL MEETING & EXPO, 107., 2016, Salt Lake City, Utah. Experience the science and business dynamics driving the global fats and oils industries: abstracts. Urbana: AOCS, 2016. p. 15| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 17. | | GUEDES, A. M. M.; ANTONIASSI, R.; GALDEANO, M. C.; GRIMALDI, R.; CARVALHO, M. G. de; WILHELM, A. E.; MARANGONI, A. G. Length-scale specific crystalline structural changes induced by molecular randomization of pequi oil. Journal of Oleo Science, v. 66, n. 5, may 2017. p. 469-478.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 19. | | BIZZO, H. R.; MACHADO, A. F. de F.; GUEDES, A. M. M.; WILHELM, A. E.; PACHECO, S.; GODOY, R. L. de O.; ANTONIASSI, R. Simultaneous determination of carotenoids and tocochromanols from palm hybrid oil by hplc with photodiode array and fluorescence detectors. In: INTERNATIONAL SYMPOSIUM ON CAPILLARY CHROMATOGRAPHY, 40.; GCxGC SYMPOSIUM, 13., 2016, Riva del Garda. Abstract book. Messina: Chromaleont, 2016. p. 483. (The forum on microcolumn separations) P 30| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 20. | | WILHELM, A. E.; ANTONIASSI, R.; SILVA, R. P. D. da; DIAS, E.; LIMA, N. A.; MACHADO, A. F. de F.; GUEDES, A. M. M. Análisis cromatrográfico de aceites con el método de metilación directa de Hartman & Lago. In: WORLD CONGRESS ON OILS & FATS AND ISF LECTURESRIP SERIES 31.; CONGRESSO LATINOAMERICANO DE GRASAS Y ACEITES, 16., 2015, Rosario. Evolución, inovacion y desafíos hacia un futuro sustentable: Proceedings... Rosario: AGA World Congress, 2015. 1 p. Poster 40. Organização: The International Society for Fat Research, Asociación Argentina de Grasas y Aceites, Latin American - American Oil Chemists' Society.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| Registros recuperados : 43 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Agroindústria de Alimentos. |
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Data corrente: |
17/05/2017 |
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Data da última atualização: |
30/05/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
GUEDES, A. M. M.; ANTONIASSI, R.; GALDEANO, M. C.; GRIMALDI, R.; CARVALHO, M. G. de; WILHELM, A. E.; MARANGONI, A. G. |
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Afiliação: |
ANDREA MADALENA MACIEL GUEDES, CTAA; ROSEMAR ANTONIASSI, CTAA; MELICIA CINTIA GALDEANO, CTAA; Renato Grimaldi, UNICAMP; Mario Geraldo de Carvalho, UFRRJ; ALLAN EDUARDO WILHELM, CTAA; Alejandro Gregorio Marangoni, University of Guelph. |
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Título: |
Length-scale specific crystalline structural changes induced by molecular randomization of pequi oil. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Journal of Oleo Science, v. 66, n. 5, may 2017. p. 469-478. |
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ISSN: |
1347-3352 |
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DOI: |
10.5650/jos.ess16192 |
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Idioma: |
Inglês |
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Conteúdo: |
Pequi fruit (Caryocar brasiliense Camb) is considered important since its pulp has a high content of oil and carotenoids. The oil?s triacylglycerols (TAGs) contain mainly oleic (~57%) and palmitic (~36%) fatty acids, distributed primarily among POO, POP/PPO, and OOO TAGs. It displays a tendency to fractionate upon storage and has a relatively low melting temperature (SFC of 4% at 25?). Pequi oil was modified through chemical interesterification, which increased the PPP content to ~6%. This caused a flattening in the SFC-temperature profile, raising the end of melt temperature significantly (SFC of 4% at 39?). The interesterified oil does not fractionate and is thermally stable up to 40?, with an SFCtemperature profile resembling that of roll-in shortening (SFC of 31% at 16?) despite containing high amounts of oleic acid. Crystallization and melting behavior changed. Crystal packing became more disorganized as evidenced by a significant decrease in crystalline domain size in the [001] direction from 42.3 nm to 32.1 nm. Polymorphism remained of the triclinic (?) subcell type but polytypism changed from the 3L to the 2L type. Polarized light microscopy demonstrated that interesterification dramatically decreased crystal size, consistent with a higher rate of nucleation in the material. Moreover, the dramatic improvement in physical stability and functionality was not accompanied by a significant decrease in total carotenoid content (~390 mg/kg). |
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Palavras-Chave: |
Crystalline domain size; Interesterification; Triacylglycerol. |
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Thesagro: |
Caryocar Brasiliense. |
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Thesaurus NAL: |
crystallization; melting. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/160360/1/66-ess16192.pdf
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Marc: |
LEADER 02336naa a2200289 a 4500
001 2069735
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008 2017 bl uuuu u00u1 u #d
022 $a1347-3352
024 7 $a10.5650/jos.ess16192$2DOI
100 1 $aGUEDES, A. M. M.
245 $aLength-scale specific crystalline structural changes induced by molecular randomization of pequi oil.$h[electronic resource]
260 $c2017
520 $aPequi fruit (Caryocar brasiliense Camb) is considered important since its pulp has a high content of oil and carotenoids. The oil?s triacylglycerols (TAGs) contain mainly oleic (~57%) and palmitic (~36%) fatty acids, distributed primarily among POO, POP/PPO, and OOO TAGs. It displays a tendency to fractionate upon storage and has a relatively low melting temperature (SFC of 4% at 25?). Pequi oil was modified through chemical interesterification, which increased the PPP content to ~6%. This caused a flattening in the SFC-temperature profile, raising the end of melt temperature significantly (SFC of 4% at 39?). The interesterified oil does not fractionate and is thermally stable up to 40?, with an SFCtemperature profile resembling that of roll-in shortening (SFC of 31% at 16?) despite containing high amounts of oleic acid. Crystallization and melting behavior changed. Crystal packing became more disorganized as evidenced by a significant decrease in crystalline domain size in the [001] direction from 42.3 nm to 32.1 nm. Polymorphism remained of the triclinic (?) subcell type but polytypism changed from the 3L to the 2L type. Polarized light microscopy demonstrated that interesterification dramatically decreased crystal size, consistent with a higher rate of nucleation in the material. Moreover, the dramatic improvement in physical stability and functionality was not accompanied by a significant decrease in total carotenoid content (~390 mg/kg).
650 $acrystallization
650 $amelting
650 $aCaryocar Brasiliense
653 $aCrystalline domain size
653 $aInteresterification
653 $aTriacylglycerol
700 1 $aANTONIASSI, R.
700 1 $aGALDEANO, M. C.
700 1 $aGRIMALDI, R.
700 1 $aCARVALHO, M. G. de
700 1 $aWILHELM, A. E.
700 1 $aMARANGONI, A. G.
773 $tJournal of Oleo Science$gv. 66, n. 5, may 2017. p. 469-478.
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