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Influence of different freezing regimes on bioelectrical properties of Atlantic chub mackerel (Scomber colias) (CROSBI ID 161780)

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Vidaček, Sanja ; Medić, Helga ; Marušić, Nives ; Tonković, Stanko ; Petrak, Tomislav Influence of different freezing regimes on bioelectrical properties of Atlantic chub mackerel (Scomber colias) // Journal of food process engineering, 35 (2012), 5; 735-741. doi: 10.1111/j.1745-4530.2010.00622.x

Podaci o odgovornosti

Vidaček, Sanja ; Medić, Helga ; Marušić, Nives ; Tonković, Stanko ; Petrak, Tomislav

engleski

Influence of different freezing regimes on bioelectrical properties of Atlantic chub mackerel (Scomber colias)

Resistance and reactance of chilled, frozen-thawed and double frozen-thawed fillets of Atlantic chub mackerel (Scomber colias) were measured in a frequency range from 0.1 to 1, 000 kHz.After the measurements in the fresh state, one group of samples was slow frozen in a freezer set at temperature -20 ± 2oC, while the second group was fast frozen by immersion in liquid nitrogen.After 14 days of frozen storage, the samples were thawed and electrical parameters were measured. The measurements were repeated on double frozen-thawed samples. Results showed that the reactance measured at frequencies higher than 150 kHz can distinguish fast frozen from slow frozen fillets. Obtained difference between freezing cycles measured with the reactance at low frequencies could have been influenced by electrode polarization and the consequence of the measuring setup. Overall findings are in accordance with the ones obtained on the farmed fish indicating that the reactancemay point to the differences in a fishmuscle structure caused by different freezing history.

Scomber colias; fish; frozen fillets; bioelectrical properties;

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Podaci o izdanju

35 (5)

2012.

735-741

objavljeno

0145-8876

10.1111/j.1745-4530.2010.00622.x

Povezanost rada

Prehrambena tehnologija

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