Modifying Headspace Sampling Environment Improves Detection of Boar Taint Compounds in Pork Fat Samples

boar taint detection; headspace solid phase microextraction; vacuum-assisted solid-phase microextraction; nitrogen-assisted solid-phase microextraction

Abstract :

[en] The extraction of boar taint compounds from pork fat samples was performed under various temperature (150, 300 and 450 °C) and atmosphere (air, nitrogen and reduced pressure) conditions. This aimed at understanding which conditions allow the greatest extractions of indole, skatole and androstenone (present in backfat in low concentrations) while limiting the presence of other VOCs in the headspace of heated fat (interfering with correct VOC-based detection of boar taint compounds). Indole and skatole were extracted in the greatest concentrations when heating backfat at 450 °C under reduced pressure, while androstenone was highest when heating at 300 °C under reduced pressure. Oxidation products were most abundant under air conditions, nitrogenated products appeared in the presence of a nitrogen-enriched atmosphere, and lastly, molecules intrinsic to boar fat saw their headspace concentration increase with reduced pressure. The combination of 450 °C and reduced pressure atmosphere was suggested for the heating of backfat prior to detection with analytical methods and to complement the current sensory analysis.

Disciplines :

Food science
Animal production & animal husbandry
Chemistry

Author, co-author :

Burgeon, Clément ; Université de Liège - ULiège > TERRA Research Centre > Chemistry for Sustainable Food and Environmental Systems (CSFES)

Markey, Alice ; Université de Liège - ULiège > TERRA Research Centre

Brostaux, Yves ; Université de Liège - ULiège > TERRA Research Centre > Modélisation et développement

Fauconnier, Marie-Laure ; Université de Liège - ULiège > TERRA Research Centre > Chemistry for Sustainable Food and Environmental Systems (CSFES)

Medronho, Bruno

Aliaño-González, María

Language :

English

Title :

Modifying Headspace Sampling Environment Improves Detection of Boar Taint Compounds in Pork Fat Samples

Publication date :

28 October 2023

Journal title :

Chemosensors

eISSN :

2227-9040

Publisher :

MDPI AG, Switzerland

Volume :

Issue :

551

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 28 November 2023

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