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Título

Infrared spectroscopy used to determine effects of chia and olive oil incorporation strategies on lipid structure of reduced-fat frankfurters

AutorHerrero, Ana M. ; Ruiz-Capillas, C. ; Pintado, T. ; Carmona, Pedro ; Jiménez Colmenero, Francisco
Palabras claveOlive oilChia
Frankfurter
Infrared spectroscopy
Technological properties
Lipid structure
Fecha de publicación5-nov-2016
EditorElsevier
CitaciónFood Chemistry 221: 1333-1339 (2017)
ResumenThis article reports an infrared spectroscopic study, using attenuated total reflectance (ATR-FTIR), on the structural characteristics of lipids in frankfurters as affected by different strategies to replace animal fat with chia flour and olive oil. Three incorporation strategies were considered: direct addition (FCO) and addition in a conventional emulsion (non-gelled) (FCE) or an emulsion gel using alginate as a gelling agent (FCEG). Reduced-fat (all-pork-fat) frankfurters (FP) were used as reference. Proximate composition and specific technological properties (pH, processing loss, texture) were also evaluated. FCE and FCEG frankfurters showed a shift to higher frequencies and the highest (p < 0.05) half-bandwidth in the νCH and νCH bands. These spectroscopic results could be related to the fact that the lipid chain was more disorderly in these samples, presumably because there were more lipid interactions than in the reference frankfurter. These features of lipid structure correlated significantly with processing loss and textural behaviour.
Descripción7 pags., 3 figs., 3 tabs.
Versión del editorhttps://doi.org/10.1016/j.foodchem.2016.11.022
URIhttp://hdl.handle.net/10261/161269
Identificadoresdoi: 10.1016/j.foodchem.2016.11.022
issn: 1873-7072
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