| Title: | HS-SPME Analysis of True Lavender (Lavandula angustifolia Mill.) Leaves Treated by Various Drying Methods |
| Author(s): | Lyczko J; Jaloszynski K; Surma M; Masztalerz K; Szumny A; |
| Address: | "Faculty of Biotechnology and Food Science, Wroclaw University of Environmental and Life Sciences, Norwida 25, 50-375 Wroclaw, Poland. jacek.lyczko@upwr.edu.pl. Institute of Agricultural Engineering, Wroclaw University of Environmental and Life Sciences, Chelmonskiego 37-41, 51-630 Wroclaw, Poland. klaudiusz.jaloszynski@upwr.edu.pl. Institute of Agricultural Engineering, Wroclaw University of Environmental and Life Sciences, Chelmonskiego 37-41, 51-630 Wroclaw, Poland. mariusz.surma@upwr.edu.pl. Institute of Agricultural Engineering, Wroclaw University of Environmental and Life Sciences, Chelmonskiego 37-41, 51-630 Wroclaw, Poland. klaudia.urbanska@upwr.edu.pl. Faculty of Biotechnology and Food Science, Wroclaw University of Environmental and Life Sciences, Norwida 25, 50-375 Wroclaw, Poland. antoni.szumny@upwr.edu.pl" |
| DOI: | 10.3390/molecules24040764 |
| ISSN/ISBN: | 1420-3049 (Electronic) 1420-3049 (Linking) |
| Abstract: | "True lavender (Lavandula angustifolia Mill.) is a widely used flavoring and medicinal plant, which strong aroma is mainly composed of linalool and linalyl acetate. The most valuable parts of the plant are the flowers, however leaves are also abundant in volatile constituents. One of the main factors responsible for its quality is the preservation procedure, which usually comes down to a drying process. For this reason an attempt to verify the influence of various drying methods (convective drying, vacuum-microwave drying and combined convection pre-drying with vacuum-microwave finishing drying) on the quality of true lavender leaves was carried out by determination of the volatile constituents profile by solid-phase microextraction (SPME) coupled with GC-MS technique. Total essential oil (EO) content was also verified. The study has revealed that the optimal drying method is strongly dependent on the purpose of the product. For flavoring properties convective drying at 60 degrees C is the most optimal method, while the best for preserving the highest amount of EO is vacuum-microwave drying at 480 W. Furthermore, SPME analysis had shown that drying may increase the value of true lavender leaves by significantly affecting the linalool to linalyl acetate to camphor ratio in the volatile profile" |
| Keywords: | "Gas Chromatography-Mass Spectrometry Lavandula/*chemistry Oils, Volatile/analysis/isolation & purification Phytochemicals/*analysis/*isolation & purification Plant Leaves/*chemistry *Solid Phase Microextraction Volatile Organic Compounds/analysis/isolatio;" |
| Notes: | "MedlineLyczko, Jacek Jaloszynski, Klaudiusz Surma, Mariusz Masztalerz, Klaudia Szumny, Antoni eng Switzerland 2019/02/23 Molecules. 2019 Feb 20; 24(4):764. doi: 10.3390/molecules24040764" |
