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dc.contributor.author
Yamul, Diego Karim
dc.contributor.author
Navarro, Alba Sofia del Rosario
dc.date.available
2020-11-05T16:44:05Z
dc.date.issued
2020-04
dc.identifier.citation
Yamul, Diego Karim; Navarro, Alba Sofia del Rosario; Effect of hydrocolloids on structural and functional properties of wheat/potato (50/50) flour dough; Elsevier; Food Structure; 24; 100138; 4-2020; 1-8
dc.identifier.uri
http://hdl.handle.net/11336/117696
dc.description.abstract
Physicochemical analyses were performed to study the effect of hydrocolloids on wheat/potato (50/50) flour doughs. Pectin, hydroxypropilmethylcellulose, Arabic gum and konjac glucomannan were tested at 1.5 g/100 g (flour basis). Textural and rheological assays indicated great differences between the control dough (100 % wheat flour) and doughs containing wheat/potato flour (50/50). These differences were reduced when hydrocolloids were added with Arabic gum and hydroxypropilmethylcellulose being the gums that better mimic the control dough properties. The analysed dough showed a bimodal distribution of relaxation times indicating that more than one molecular mechanism was responsible for relaxation. The presence of potato flour led to a marked decrease in relaxation times indicating a faster decay of stress as a function of time. The presence of gums probably increased relaxation times by establishing stronger non-covalent interaction with the dough components, rendering high molecular weight aggregates, which slowed down relaxation behaviour. Differential scanning calorimetry results showed that potato flour did not significantly changed the gelatinization temperature, but the addition of hydrocolloids shifted this parameter to higher values. Samples containing gums broadened the endotherm making the process slower and more energy demanding. The microstructure was studied at different levels (optical, confocal and scanning electron microscopy) and it was observed that potato flour made the microstructure smoother and more uniform. On the other hand, the addition of hydrocolloids led to rougher structures. These observations were confirmed by modelling image texture with different algorithms such as grey level co-occurrence matrix, fractal dimension and lacunarity.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
WHEAT FLOUR
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POTATO FLOUR
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DOUGH
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HYDROCOLLOIDS
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Alimentos y Bebidas
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Otras Ingenierías y Tecnologías
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Effect of hydrocolloids on structural and functional properties of wheat/potato (50/50) flour dough
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-10-27T17:49:27Z
dc.identifier.eissn
2213-3291
dc.journal.volume
24
dc.journal.number
100138
dc.journal.pagination
1-8
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Yamul, Diego Karim. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Veterinarias. Departamento de Tecnologia y Calidad de los Alimentos; Argentina
dc.description.fil
Fil: Navarro, Alba Sofia del Rosario. Universidad Nacional de La Plata. Facultad de Ingeniería; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos; Argentina
dc.journal.title
Food Structure
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://tinyurl.com/y2mxczjv
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.foostr.2020.100138
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