Université d'Avignon et des Pays de Vaucluse, INRA, UMR408, GREEN Extraction Team, 84000 Avignon, France.
J Chromatogr A. 2013 Aug 30;1305:41-7. doi: 10.1016/j.chroma.2013.07.024. Epub 2013 Jul 9.
A total of eight extraction techniques ranging from conventional methods (hydrodistillation (HD), steam distillation (SD), turbohydrodistillation (THD)), through innovative techniques (ultrasound assisted extraction (US-SD) and finishing with microwave assisted extraction techniques such as In situ microwave-generated hydrodistillation (ISMH), microwave steam distillation (MSD), microwave hydrodiffusion and gravity (MHG), and microwave steam diffusion (MSDf)) were used to extract essential oil from lavandin flowers and their results were compared. Extraction time, yield, essential oil composition and sensorial analysis were considered as the principal terms of comparison. The essential oils extracted using the more innovative processes were quantitatively (yield) and qualitatively (aromatic profile) similar to those obtained from the conventional techniques. The method which gave the best results was the microwave hydrodiffusion and gravity (MHG) method which gave reduced extraction time (30min against 220min for SD) and gave no differences in essential oil yield and sensorial perception.
总共使用了八种提取技术，从传统方法（水蒸气蒸馏（HD）、蒸馏（SD）、涡轮水力蒸馏（THD）），到创新技术（超声辅助提取（US-SD）），最后是微波辅助提取技术，如原位微波生成水蒸气蒸馏（ISMH）、微波水蒸气蒸馏（MSD）、微波水扩散和重力（MHG）和微波水蒸气扩散（MSDf），用于从薰衣草花中提取精油，并对其结果进行了比较。提取时间、产量、精油成分和感官分析被认为是主要的比较因素。使用更创新工艺提取的精油在数量（产量）和质量（香气特征）上与传统技术获得的精油相似。效果最好的方法是微波水扩散和重力（MHG）法，它可以缩短提取时间（30 分钟对 SD 的 220 分钟），并且在精油产量和感官感知方面没有差异。
