Key Aroma Compounds in Smoked Cooked Loin

Area of Science:

• Food Science
• Analytical Chemistry

Background:

• Smoked cooked loin is a popular meat product in Poland.
• Understanding its flavor profile is crucial for quality control and product development.

Purpose of the Study:

• To identify and quantify key odor-active volatile compounds contributing to the flavor of traditional Polish smoked cooked loin.
• To determine the compounds with the highest odor activity values (OAVs) responsible for the characteristic aroma.

Main Methods:

• Gas chromatography-olfactometry (GC-O) and aroma extract dilution analysis (AEDA) were used to identify odor-active volatile compounds.
• Stable isotope dilution assays (SIDAs) and standard addition (SA) were employed for quantitative analysis.
• Odor activity values (OAVs) were calculated to assess the contribution of each compound to the overall aroma.

Main Results:

• A total of 27 odor-active volatile compounds were identified, with flavor dilution (FD) factors up to 1024.
• 2-methoxyphenol, 2-methoxy-4-(prop-2-enyl)phenol, and 2-methoxy-4-(E)-(prop-1-en-1-yl)phenol exhibited the highest FD factors.
• 24 volatile compounds were identified as primarily responsible for the flavor, with 2-methoxyphenol, 2-methyl-3-furanthiol, 1-octen-3-one, and 2-methyl-3-(methyldithio)furan showing the highest OAVs.

Conclusions:

• The study successfully identified key volatile compounds that define the aroma of Polish smoked cooked loin.
• Specific phenolic compounds and sulfur-containing compounds play a significant role in the characteristic flavor profile.