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Original scientific paper

https://doi.org/10.31727/m.24.5.3

Stabilization of goose fat with antioxidants and synergists

Tihomir Moslavac ; Prehrambeno-tehnološki fakultet, Sveučilište Josipa Jurja Strossmayera Osijek, Hrvatska
Stela Jokić ; Prehrambeno-tehnološki fakultet, Sveučilište Josipa Jurja Strossmayera Osijek, Hrvatska
Ivana Flanjak ; Prehrambeno-tehnološki fakultet, Sveučilište Josipa Jurja Strossmayera Osijek, Hrvatska


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Abstract

During production, storage and heat treatment, goose fat is subject to oxidative deterioration. This paper investigated the influence of natural and synthetic antioxidants and synergists (rosemary extract, green tea extract, sage extract, alpha tocopherol, tocopherol mixture, propyl gallate, citric acid, ascorbic acid, caffeic acid, rosmarinic acid) on the oxidative stability of goose fat. Oxidation stability of fat, with and without added antioxidants and synergists, was investigated using the Schaal Oven test. The test results are presented as the value of the peroxide number after a certain time of keeping the fat at a temperature of 63 °C. The results of the study showed that applying antioxidants and synergists successfully stabilises goose fat, with exception of α-tocopherol. Of the natural antioxidants, green tea extract has the highest antioxidant activity in goose fat. It achieved the highest efficiency of protection against oxidative deterioration. Rosemary extract in combination with a synergist shows a higher level of fat protection against oxidation compared to pure rosemary extract. By adding a tocopherol mixture, a better stabilization of the fat was achieved compared to sage extract. The synthetic antioxidant propyl gallate successfully increased the stability of goose fat.

Keywords

goose fat; oxidation stability; Schaal Oven test; antioxidants; synergists

Hrčak ID:

285211

URI

https://hrcak.srce.hr/285211

Publication date:

14.10.2022.

Article data in other languages: italian spanish german croatian

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