Journal
FOOD CHEMISTRY-X
Volume 20, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.fochx.2023.100904
Keywords
Electron beam irradiation; Oat; Barley; Lipid-degrading enzymes; Lipid oxidation
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This study investigated the effect of electron beam irradiation on the lipid stability of oat and barley during long-term storage. Results showed that both storage and irradiation influenced lipid oxidation, but storage had a greater impact.
This study investigated the effect of electron beam irradiation (EBI) on the lipid stability of oat and barley during long-term storage. Results showed that the initial free fatty acid content in oat was higher than that in barley. This may mean that lipid hydrolysis started under the function of lipase when oat and barley were milled into flours. Both storage and EBI factors influenced lipid-degrading enzyme activity and promoted lipid oxidation in oat and barley. However, it seemed that storage had higher impacts because the DPPH scavenging activity decreased greatly, and the contents of both malondialdehyde and volatile lipid oxidation products increased in all samples. Thus, the antioxidant capacity and level of lipid oxidation after EBI treatment should be considered when producing oat and barley foods. Overall, this study shows the high potential of EBI for use as a non-thermal technique in stabilising the storage quality of oat and barley.
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