Academic article

Analysis of early lipid oxidation in smoked, comminuted, pork or poultry sausages with spices

Olsen, Elisabeth; Vogt, Kjell Gjermund; Dahl, Annette Veberg; Ekeberg, Dag; Nilsson, Astrid

Publication details

Journal: Journal of Agricultural and Food Chemistry, vol. 53, p. 74487457–1, 2005

Publisher: American Chemical Society (ACS)

International Standard Numbers:
Printed: 0021-8561
Electronic: 1520-5118

Open Access: none

Links:
DOI

Dynamic headspace/gas chromatography-mass spectrometry (GC-MS), front-face fluorescence spectroscopy, and a gas-sensor array technique (electronic nose) have previously detected lipid oxidation in pork back fat or mechanically recovered poultry meat earlier than or at the same time as a sensory panel. The present study was focused on measurement of early lipid oxidation in a more complicated product (freeze-stored, smoked sausages with spices). During the storage time, formation of components contributing to rancid odor and flavor (e.g., hexanal and 1-penten-3-ol) could be monitored with dynamic headspace/GC-MS. The GC-MS data also showed a decrease in 2-furancarboxalclehyde, which could indicate loss of Maillard type components often associated with acidic or meat odor and flavor. The fluorescence spectra were difficult to interpret, probably due to the simultaneous influence from increasing levels of lipid oxidation products and loss of fluorescent Maillard or spice components. The gas-sensor array responses were dominated by signals from, e.g., spice and smoke compounds.