超声与微波联合技术提高百里香精油提取工艺效率

IF 3.3 2区农林科学 Q1 AGRONOMY

Agronomy-Basel Pub Date : 2023-09-06 DOI:10.3390/agronomy13092331

A. Gavrila, C. Chisega-Negrila, Laura Maholea, Mircea L. Gavrila, O. Pârvulescu, Ioana Popa

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引用次数: 0

摘要

本文介绍了连续使用超声波和微波处理从百里香中提取精油的方法。本研究的目的是对百里香叶进行超声预处理，以提高微波辅助加氢蒸馏（MWHD）获得的EO的百里酚含量和提取率。与传统的加氢蒸馏（CHD）相比，连续使用超声波预处理和微波提取使提取时间减少了72%。当应用超声预处理（使用振幅为70%的超声处理器）时，EO含量比未经预处理的提取高23%（超声预处理的MWHD为2.67±0.06 g EO/100 g DM，而未经预治疗的MWHD则为2.18±0.07 g EO/100g DM）。EO样品通过GC/MS进行分析。结果表明，主要成分百里香酚的含量从43.54%（CHD）到65.94%（连续使用超声波和微波治疗）不等。

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Enhancing the Extraction Process Efficiency of Thyme Essential Oil by Combined Ultrasound and Microwave Techniques

In this paper, the essential oil (EO) extraction from thyme by the consecutive use of ultrasound and microwave treatments is presented. The aim of this study was to apply an ultrasound pre-treatment of thyme leaves to enhance the thymol content and the extraction yield of the EO obtained by microwave-assisted hydro-distillation (MWHD). Compared with conventional hydro-distillation (CHD), the consecutive use of ultrasound pre-treatment and microwave extraction resulted in a 72% lower extraction time. When the ultrasound pre-treatment (using the ultrasonic processor with an amplitude of 70%) was applied, the EO content was 23% higher compared to the extraction without pre-treatment (2.67 ± 0.06 g EO/100 g DM for the MWHD with ultrasound pre-treatment compared with 2.18 ± 0.07 g EO/100 g DM for the MWHD without pre-treatment). The EO samples were analyzed by GC/MS. The results showed that the major component, thymol, varied from 43.54% (by CHD) to 65.94% (by the consecutive use of ultrasound and microwave treatments).

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来源期刊

Agronomy-Basel Agricultural and Biological Sciences-Agronomy and Crop Science

CiteScore

6.20

自引率

13.50%

发文量

2665

审稿时长

20.32 days

期刊介绍： Agronomy (ISSN 2073-4395) is an international and cross-disciplinary scholarly journal on agronomy and agroecology. It publishes reviews, regular research papers, communications and short notes, and there is no restriction on the length of the papers. Our aim is to encourage scientists to publish their experimental and theoretical research in as much detail as possible. Full experimental and/or methodical details must be provided for research articles.