IDEAS home Printed from https://ideas.repec.org/a/ags/aesjfr/405232.html

Effect of Frozen Storage on Biochemical Changes and Fatty Acid Composition of Mackerel (Scomber japonicus) Muscle

Author

Listed:
  • Paola, Agustinelli
  • Isabel, Yeannes

Abstract

The aim of the present work was to analyze the effect of frozen storage on biochemical characteristics in mackerel (Scomber japonicus). Fresh mackerel captured from Southwest Atlantic Ocean was frozen and then stored at -19 ± 1 ºC for one year. Biochemical analyses were done at established sampling times: total volatile basic nitrogen (TVB-N), fatty acid profile, thiobarbituric acid values (TBA-RS) and colour determinations. After twelve months TVB-N increase correlated (R2: 0.888) with storage time indicating the effect of enzymatic activity. Lipid content presented high degree of unsaturation, EPA (eicosapentaenoic acid; C20:5 w-3) and DHA (docosahexaenoic acid; C22:6 w-3) acids prevail among total w-3 acids. During frozen storage, polyunsaturated fatty acids, w-3 and Polyene Index (EPA + DHA ? C16) contents decreased. Frozen storage of whole mackerel caused important changes in fatty acid composition simultaneously with an increase in lipid oxidation in fillets, measured as TBA-RS. Dark muscle was more sensitive to lipid oxidation than the light muscle. Color analysis showed that L* value was the parameter which presented more changes during frozen storage indicating loss of lightness in the dorsal and ventral fish fillet areas. The increase in b* value on the ventral zone indicated the presence of yellow pigments as result of lipid oxidation. Although the frozen storage technique represents important changes in mackerel samples, the high values of PUFA in muscle are still high over other fish species making mackerel an important nutritional resource.

Suggested Citation

  • Paola, Agustinelli & Isabel, Yeannes, 2014. "Effect of Frozen Storage on Biochemical Changes and Fatty Acid Composition of Mackerel (Scomber japonicus) Muscle," Journal of Food Research, Canadian Center of Science and Education, vol. 4(1).
    • Handle: RePEc:ags:aesjfr:405232
    as

    Download full text from publisher

    File URL: https://ageconsearch.umn.edu/record/405232/files/41336-148995-2-PB.pdf
    Download Restriction: no
    ---><---

    More about this item

    Keywords

    ;

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:ags:aesjfr:405232. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: AgEcon Search (email available below). General contact details of provider: https://www.ccsenet.org/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.