Determination of volatile components in cumin by microwave-assisted PDMS/GO/DES headspace solid phase extraction...

Area of Science:

• Analytical Chemistry
• Materials Science

Background:

• Volatile compounds in spices like cumin are crucial for flavor and aroma.
• Accurate determination of these compounds requires efficient extraction techniques.

Purpose of the Study:

• To develop a novel, high-performance adsorbent for volatile compound extraction from cumin.
• To establish a sensitive and rapid analytical method for spice analysis.

Main Methods:

• Development of a polydimethylsiloxane/graphene oxide/deep eutectic solvent (PDMS/GO/DES) sponge.
• Headspace solid-phase extraction (HS-SPE) using the PDMS/GO/DES sponge.
• Gas chromatography-mass spectrometry (GC-MS) for volatile component determination.
• Principal component analysis (PCA) for origin discrimination.

Main Results:

• The PDMS/GO/DES sponge demonstrated high adsorption capacity and chemical stability.
• Excellent analytical performance was achieved: wide linearity, low limits of detection (LODs) and quantification (LOQs), and high precision.
• 31 volatile compounds were identified in 17 cumin samples, with PCA successfully differentiating origins.

Conclusions:

• The developed PDMS/GO/DES sponge HS-SPE-GC-MS method is a rapid, simple, and sensitive technique for analyzing volatile components in spices.
• This method shows significant potential for quality control and origin tracing of cumin.
• The novel adsorbent material offers advantages for the extraction of volatile organic compounds.