Influence of beeswax adulteration with paraffin on the composition and quality of honey determined by physico-chemical analyses, 1H NMR, FTIR-ATR and HS-SPME/GC-MS

Food Chem. 2019 Sep 1:291:187-198. doi: 10.1016/j.foodchem.2019.03.151. Epub 2019 Apr 1.

Abstract

Analytical parameters were determined for the first time in honey produced in the honeycomb constructed on comb foundations adulterated with 90% of paraffin (PF-H) and compared to honey ripened in genuine beeswax (BWF-H) using physico-chemical and spectroscopic techniques (1H NMR, FTIR-ATR, HS-SPME/GC-MS). Water content was significantly higher (SH) and glucose/water ratio significantly lower in PF-H samples. The contents of acetic and citric acid were marginally significantly higher (MSH) in PF-H samples. These findings suggest that adulterated beeswax affects composition of honey as the set of altered parameters indicate chemical changes leaning towards fermentative processes. Moderately changed headspace chemical profile of PF-H honey was determined depending on the floral source (pentanal, α-pinene and benzaldehyde were SH in BWF-H sunflower honey; butanal was MSH, and 2-phenylethanol was more abundant in BWF-H black locust honey). Higher percentage of nonanal, octane and β-damascenone were found in PF-H samples that could indicate more intensive oxidation.

Keywords: (1)H NMR; Chemical alterations; FTIR-ATR; Fermentation susceptibility; HS-SPME/GC–MS; Honey produced in paraffin-based ripening media; Physico-chemical analyses.

MeSH terms

  • Benzaldehydes / analysis
  • Bicyclic Monoterpenes
  • Gas Chromatography-Mass Spectrometry
  • Honey / analysis*
  • Magnetic Resonance Imaging
  • Monoterpenes / analysis
  • Paraffin / chemistry*
  • Solid Phase Microextraction
  • Spectroscopy, Fourier Transform Infrared
  • Waxes / chemistry*

Substances

  • Benzaldehydes
  • Bicyclic Monoterpenes
  • Monoterpenes
  • Waxes
  • beeswax
  • Paraffin
  • alpha-pinene
  • benzaldehyde