| Title: | "Phenolic Compounds, Volatiles and Antioxidant Capacity of White Myrtle Berry Liqueurs" |
| Author(s): | Serreli G; Jerkovic I; Gil KA; Marijanovic Z; Pacini V; Tuberoso CIG; |
| Address: | "Department of Biomedical Sciences, Unit of Experimental Pathology, University of Cagliari, Cittadella Universitaria SS 554, 09042, Monserrato, CA, Italy. Department of Organic Chemistry, Faculty of Chemistry and Technology, University of Split, Rudera Boskovica 35, 21000, Split, Croatia. Department of Life and Environmental Sciences, University of Cagliari, Via Ospedale 72, 09124, Cagliari, Italy. Department of Food Technology, Marko Marulic Polytechnic in Knin, Petra Kresimira IV 30, 22300, Knin, Croatia. Distillerie Mario Pacini S.r.l, Via Cettolini 32, 09030, Elmas, CA, Italy. Department of Life and Environmental Sciences, University of Cagliari, Via Ospedale 72, 09124, Cagliari, Italy. tuberoso@unica.it" |
| DOI: | 10.1007/s11130-017-0611-8 |
| ISSN/ISBN: | 1573-9104 (Electronic) 0921-9668 (Linking) |
| Abstract: | "The aim of this research was to evaluate the antioxidant capacity and physical-chemical characteristics of commercial white myrtle berry (Myrtus communis L. var. leucocarpa DC) liqueur (WMBL). The total phenolic (TP) content was measured spectrophotometrically, applying a modified Folin-Ciocalteu's method, and phenolic compounds were identified by high-performance liquid chromatography (HPLC) coupled with electrospray mass spectrometry, and quantified by HPLC coupled with ultraviolet/visible detection. The antioxidant capacities were evaluated by FRAP, CUPRAC, DPPH(*), and ABTS(*+) assays. The volatiles were assessed by gas chromatography and mass spectrometry (GC-MS/FID) after headspace solid-phase microextraction (HS-SPME) and liquid-liquid extraction (LLE). WMBL showed lower TP levels (636.3 +/- 39.2 mg GAE/L) than in purple myrtle berry liqueur (PMBL). Nevertheless, WMBL exhibited better antioxidant capacities, potentially due to high concentrations of gallic acid (294.2 +/- 14.2 mg/L) and its derivatives (58.3 +/- 2.1 mg/L). Other phenolic compounds detected by HPLC-DAD and LC-MS/MS were flavonols like myricetin and its derivatives (myricetin-3-O-galactoside and myricetin-3-O-rhamnoside) with concentrations similar to those found in PMBL. GC-MS/FID analysis revealed 44 compounds (terpenes, higher aliphatic compounds and shikimic acid pathway derivatives). 1,8-Cineole was the most abundant terpene in the liqueur (26.5% (HS-SPME) and 9.6% (LLE))" |
| Keywords: | Antioxidants/*analysis/metabolism Cyclohexanols/analysis/metabolism Eucalyptol Flavonoids/analysis/metabolism Fruit/chemistry Galactosides/analysis/metabolism Gallic Acid/analysis/metabolism Mannosides/analysis/metabolism Monoterpenes/analysis/metabolism; |
| Notes: | "MedlineSerreli, Gabriele Jerkovic, Igor Gil, Katarzyna Angelika Marijanovic, Zvonimir Pacini, Viviana Tuberoso, Carlo Ignazio Giovanni eng Netherlands 2017/04/28 Plant Foods Hum Nutr. 2017 Jun; 72(2):205-210. doi: 10.1007/s11130-017-0611-8" |
