Jerković, Igor; Roje, Marin; Tuberoso, C. I. G.; Marijanović, Zvonimir; Kasum, A.; Obradović, Marina (2014) Bioorganic Research of Galactites tomentosa Moench. Honey Extracts: Enantiomeric Purity of Chiral Marker 3- Phenyllactic Acid. Chirality, 26 (8). pp. 405-410. ISSN 0899-0042
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 fi rst 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 fi ndings of chemical markers of thistle honey were extended, providing new potential for advanced chemical fingerprinting (optical pure chemical marker).
| Item Type: | Article | ||||||||
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| Uncontrolled Keywords: | volatile organic compounds; GC-FID; GC-MS; chiral HPLC with polarimetric detector; ( – )-3-phenyllactic acid | ||||||||
| Subjects: | NATURAL SCIENCES > Chemistry NATURAL SCIENCES > Chemistry > Organic Chemistry |
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| Divisions: | Division of Organic Chemistry and Biochemistry | ||||||||
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| Depositing User: | Marin Roje | ||||||||
| Date Deposited: | 19 Aug 2015 07:15 | ||||||||
| URI: | http://fulir.irb.hr/id/eprint/2095 | ||||||||
| DOI: | 10.1002/chir.22340 |
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