Bioorganic Research of Galactites tomentosa Moench. Honey Extracts: Enantiomeric Purity of Chiral Marker 3‐Phenyllactic Acid

Abstract

Thistle (Galactites tomentosa Moench.) honey organic extracts were obtained by headspace solid-phase microextraction (HS-SPME) and ultrasonic solvent extraction (USE) and analyzed by gas chromatography (GC-FID and GC-MS) for the first time. Most abundant headspace compounds were terpenes, particularly linalool derivatives (hotrienol was predominant with a range of 38.6-57.5%). 3-Phenyllactic acid dominated in the solvent extracts (77.4-86.4%) followed by minor percentages of other shikimate pathway derivatives. After determination of an adequate enantioseparation protocol on Chirallica PST-4 column, the honey solvent extracts were analyzed by high-performance liquid chromatography (HPLC). The chiral analysis revealed high enantiomeric excess (>95%) of (-)-3-phenyllactic acid in all samples. Therefore, previous findings of chemical markers of thistle honey were extended, providing new potential for advanced chemical fingerprinting (optical pure chemical marker).

French Guiana honeys from the Amazon biome: First description of volatile fraction and antioxidant capacity

“…Hotrienol had already been reported in the composition of honeys harvested in temperate zones [ 30 , [34] , [35] , [36] ]. It is a major volatile compound found in purple milk thistle ( Galactites tomentosa Moench) and winter savory ( Satureja montana L.) honeys [ 35 , 37 ]. In addition, it has been designated as a chemical marker of Citrus L. honeys with lilac aldehyde and 1-p-menthen-al [ 10 , 30 ].…”

Antioxidant Potential of Herbal Preparations and Components from Galactites elegans (All.) Nyman ex Soldano

“…Galactites elegans is consumed as a monofloral boar thistle honey. This plant prefers sunny places and usually grows on the uncultivated or barren grounds, waste places, well-drained soils, pastures, and roadsides [ 3 – 5 ].…”