In the present study we show that the method of isoelectric focusing (IEF) is a simple and reliable one for detecting the fraudulent substitution of cold-smoked fillets of swordfish (Xiphias gladius) with those of lower value blue marlin (Makaira mazara) and for detecting substitution of blue marlin steaks with those of Mediterranean spearfish (Tetrapturus belone). The cold smoking process does not alter the sarcoplasmic proteins of the fish species, so cold smoked fillets of the species investigated can be identified in the same was as fresh and frozen samples.

Isoelectric focusing of sarcoplasmic proteins to distinguish swordfish, blue marlin and Mediterranean spearfish / P. Renon, C.E.M. Bernardi, R. Malandra, P.A. Biondi. - In: FOOD CONTROL. - ISSN 0956-7135. - 16:5(2005), pp. 473-477.

Isoelectric focusing of sarcoplasmic proteins to distinguish swordfish, blue marlin and Mediterranean spearfish

P. Renon
Primo
;
C.E.M. Bernardi
Secondo
;
P.A. Biondi
Ultimo
2005

Abstract

In the present study we show that the method of isoelectric focusing (IEF) is a simple and reliable one for detecting the fraudulent substitution of cold-smoked fillets of swordfish (Xiphias gladius) with those of lower value blue marlin (Makaira mazara) and for detecting substitution of blue marlin steaks with those of Mediterranean spearfish (Tetrapturus belone). The cold smoking process does not alter the sarcoplasmic proteins of the fish species, so cold smoked fillets of the species investigated can be identified in the same was as fresh and frozen samples.
Blue marlin; Commercial fraud; IEF; Mediterranean spearfish; Swordfish
Settore BIO/10 - Biochimica
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/32977
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