Abstract
This study was carried out to investigate storage-associated changes in the fatty acid profile (with GC and 1H-NMR techniques) of oat-based gluten-free cookies prepared with different fats: margarine (MAR), butter (BUT), lard (LAR), refined palm oil (RPO), refined palm oil with stearin (RPOS), and hydrogenated palm oil (HPO). GC analysis indicated that palmitic and stearic acid were the predominant saturated fatty acids (SFAs), regardless of the type of fat used. cis-Oleic acid represented the major monounsaturated fatty acid (MUFA), while cis-linoleic acid was the most abundant polyunsaturated fatty acid (PUFA). After 6 months of storage, a significant decreasing trend in SFA concentration was observed for LAR and RPOS cookies, while a decrease in MUFA concentration was observed only for HPO cookies. In fresh cookies and in cookies stored for 6 months, the contents of SFA, MUFA, and PUFA determined by GC were positively correlated with those determined by 1H-NMR (r > 0.90).
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Acknowledgements
This work was supported by a grant from the Romanian National Authority for Scientific Research (CNDI-UEFISCDI, Project Number 111/2012) and by a grant from the Ministry of Research and Innovation through Program 1—Development of the National R&D System, Subprogram 1.2—Institutional Performance—Projects for Excellence Financing in RDI (Project No. 26 PFE/17.10.2018).
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Culetu, A., Ionescu, V., Todasca, M.C. et al. Evaluation of the storage-associated changes in the fatty acid profile of oat-based gluten-free cookies prepared with different fats. Food Sci Biotechnol 29, 759–767 (2020). https://doi.org/10.1007/s10068-019-00720-7
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DOI: https://doi.org/10.1007/s10068-019-00720-7