Authentication of canned fish packing oils by means of Fourier transform infrared spectroscopy

作者：Dominguez Vidal Ana; Pantoja de la Rosa Jaime; Cuadros Rodriguez Luis; Jose Ayora Canada Maria

来源：Food Chemistry, 2016, 190: 122-127.

DOI：10.1016/j.foodchem.2015.05.064

• Olive oil
• High-oleic sunflower oil
• Vegetable oil
• Canned fish
• Tuna fish
• Infrared spectroscopy

The authentication of packing oil from commercial canned tuna and other tuna-like fish species was examined by means of attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR) and chemometrics. Using partial least squares discriminant analysis (PLS-DA), it was possible to differentiate olive oil from seed oils. Discrimination of olive oil from high-oleic sunflower oil was possible, despite the latter having a degree of unsaturation more similar to olive oil than to sunflower oil. However, in the samples analyzed, sunflower oil could not be differentiated clearly from those labeled with the generic term "vegetable oil". Furthermore, the authentication of extra virgin olive oil, although more,difficult, could be achieved using ATR-FTIR spectroscopy. The method could be applied regardless of fish type, without interference from fish lipids.

• 出版日期2016-1-1