AI Article Synopsis
- Researchers characterized rare Croatian Moltkia petraea honey for the first time, measuring its color, phenol content, and antioxidant capacity, finding values typical of darker honeys.
- Analysis using headspace solid-phase microextraction and gas chromatography identified key aromatic compounds like 2-phenylacetaldehyde and benzaldehyde, contributing to its unique flavor profile.
- The targeted analysis revealed high concentrations of specific compounds such as phenylalanine and lumichrome, establishing a distinct chemical fingerprint for this type of honey.
Article Abstract
Rare Moltkia petraea (Tratt.) Griseb. honey from Croatia was first time characterised. The spectrophotometric assays on CIE L*a*b*C *h ° colour coordinates, total phenol content and antioxidant capacity (FRAP, CUPRAC, DPPH and ABTS assays) determined higher honey values generally close to dark honeys ranges. Headspace solid-phase microextraction (HS-SPME) on two fibres after GC-FID and GC/MS revealed the major compounds 2-phenylacetaldehyde (12.8%; 15.6%), benzaldehyde (11.1%; 10.0%), octane (9.3%; 7.6%), nonane, propan-2-one, pentan-2-one, pentanal and nonanal (4.9%; 14.5%). Ultrasonic solvent extraction (USE) mainly isolated non-specific higher molecular compounds characteristic of the comb environment. Targeted HLPC-DAD analysis of the honey determined higher concentration of phenylalanine (212.08 mg/kg) and lumichrome (16.25 mg/kg) along with tyrosine and kojic acid. The headspace composition (chemical fingerprint) and high concentration of lumichrome can be considered particular for M. petraea honey.
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| http://dx.doi.org/10.1002/cbdv.201600268 | DOI Listing |
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