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Effects of antioxidants and humidity on the oxidative stability of microencapsulated fish oil
Author(s) -
Baik M. Y.,
Suhendro E. L.,
Nawar W. W.,
McClements D. J.,
Decker E. A.,
Chinachoti P.
Publication year - 2004
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/s11746-004-0906-7
Subject(s) - tbars , fish oil , chemistry , antioxidant , ascorbyl palmitate , food science , tocopherol , thiobarbituric acid , oxidative phosphorylation , fish <actinopterygii> , biochemistry , lipid peroxidation , vitamin e , biology , fishery
The effects of various antioxidants and RH on the oxidative stability of microencapsulated fish oil powder were investigated using PV and thiobarbituric acid tests. The micorencapsulation process provided high encapsulation efficiency (≥88% of extractable fish oil). Without antioxidants, the encapsulated fat was 10 times more stable against oxidation than the surface fat, as determined by PV. α‐Tocopherol, which is a lipophilic antioxidant, showed a greater antioxidative effect in both surface and encapsulated fats than ascorbyl palmitate, which is an amphiphilic antioxidant. According to TBARS values, the longest lag period was observed at 0% RH. Addition of >200 ppm α‐tocopherol in a 10–30% RH range prolonged the oxidative stability of the microencapsulated fish oil powder.