Thermal behaviour of high-stearic high-oleic sunflower oil during refining process
Trabajo presentado en el 8th Eurofed Lipid Congress, celebrado en Munich (Alemania) del 21 al 24 de noviembre de 2010.
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2010-11-21
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dig-ias-es-10261-2826272022-11-11T02:41:23Z Thermal behaviour of high-stearic high-oleic sunflower oil during refining process Aguirre-González, Marta R. Dobarganes, M. Carmen Ruiz Méndez, Mª Victoria Trabajo presentado en el 8th Eurofed Lipid Congress, celebrado en Munich (Alemania) del 21 al 24 de noviembre de 2010. New oils such as high-stearic high-oleic sunflower oils have many potential food applications for their unique properties and thereby their refining process is essential to be studied as to obtain high quality and safety foods. In this paper, thermal analysis by Differential Scanning Calorimetry has been applied to study changes at different stages of the refining process, and particularly focused to the separation step by crystallization of two fractions: i) a solid fraction (stearin), intended to be used as margarine and hence as an alternative to hydrogenated fats rich in trans fatty acids and ii) a liquid fraction suitable to be used as cooking oil. For experiments, crude high-stearic high-oleic sunflower oil was degummed, neutralized and bleached under different conditions. The results obtained indicated that minor compounds removed in each step affected the thermal behaviour of the oil by increasing the percentage of solid fraction obtained for the same temperature. However, the differences in the operation conditions tested, such as percentage of phosphoric acid in degumming, caustic soda concentration in neutralization, or percentage of bleaching earth, affected the efficacy of the treatment in terms of phosphorous content, acidity or colour of the samples, respectively, but did not modify the percentage of solid fraction. 2022-11-10T09:30:03Z 2022-11-10T09:30:03Z 2010-11-21 2022-11-10T09:30:03Z póster de congreso 8th Eurofed Lipid Congress (2010) http://hdl.handle.net/10261/282627 Sí none |
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| description |
Trabajo presentado en el 8th Eurofed Lipid Congress, celebrado en Munich (Alemania) del 21 al 24 de noviembre de 2010. |
| format |
póster de congreso |
| author |
Aguirre-González, Marta R. Dobarganes, M. Carmen Ruiz Méndez, Mª Victoria |
| spellingShingle |
Aguirre-González, Marta R. Dobarganes, M. Carmen Ruiz Méndez, Mª Victoria Thermal behaviour of high-stearic high-oleic sunflower oil during refining process |
| author_facet |
Aguirre-González, Marta R. Dobarganes, M. Carmen Ruiz Méndez, Mª Victoria |
| author_sort |
Aguirre-González, Marta R. |
| title |
Thermal behaviour of high-stearic high-oleic sunflower oil during refining process |
| title_short |
Thermal behaviour of high-stearic high-oleic sunflower oil during refining process |
| title_full |
Thermal behaviour of high-stearic high-oleic sunflower oil during refining process |
| title_fullStr |
Thermal behaviour of high-stearic high-oleic sunflower oil during refining process |
| title_full_unstemmed |
Thermal behaviour of high-stearic high-oleic sunflower oil during refining process |
| title_sort |
thermal behaviour of high-stearic high-oleic sunflower oil during refining process |
| publishDate |
2010-11-21 |
| url |
http://hdl.handle.net/10261/282627 |
| work_keys_str_mv |
AT aguirregonzalezmartar thermalbehaviourofhighstearichigholeicsunfloweroilduringrefiningprocess AT dobarganesmcarmen thermalbehaviourofhighstearichigholeicsunfloweroilduringrefiningprocess AT ruizmendezmavictoria thermalbehaviourofhighstearichigholeicsunfloweroilduringrefiningprocess |
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1777663372926386176 |