Pavlić Branimir, Kaplan Muammer, Zeković Zoran, Canli Oltan, Jovičić Nebojša, Bursać Kovačević Danijela, Bebek Markovinović Anica, Putnik Predrag, Bera Oskar
Faculty of Technology, University of Novi Sad, Bulevar Cara Lazara 1, 21000 Novi Sad, Serbia.
TUBITAK Marmara Research Centre, Institute of Chemical Technology, P.O. Box 21, Gebze 41470, Kocaeli, Turkey.
Plants (Basel). 2023 Mar 21;12(6):1391. doi: 10.3390/plants12061391.
The aim of this work was to investigate the microwave-assisted extraction (MAE) kinetics of polyphenolic compounds from organic peppermint leaves. The phytochemicals of peppermint ( L.) are increasingly used in food technology due to their numerous biological activities. The processing of various plant materials by MAE and the production of high-quality extracts is becoming increasingly important. Therefore, the influence of microwave irradiation power (90, 180, 360, 600, and 800 W) on total extraction yield (Y), total polyphenols yield (TP), and flavonoid yield (TF) were investigated. Common empirical models (first-order, Peleg's hyperbolic, Elovich's logarithmic, and power-law model) were applied to the extraction process. The first-order kinetics model provided the best agreement with the experimental results in terms of statistical parameters (SS, , and AARD). Therefore, the influences of irradiation power on the adjustable model parameters ( and ) were investigated. It was found that irradiation power exerted a significant influence on , while its influence on the asymptotic value of the response was negligible. The highest experimentally determined (2.28 min) was obtained at an irradiation power of 600 W, while the optimal irradiation power determined by the maximum fitting curve determination predicted the highest (2.36 min) at 665 W.
这项工作的目的是研究从有机薄荷叶中提取多酚类化合物的微波辅助提取（MAE）动力学。薄荷（L.）的植物化学物质因其众多的生物活性而在食品技术中越来越多地被使用。通过微波辅助提取处理各种植物材料并生产高质量提取物变得越来越重要。因此，研究了微波辐照功率（90、180、360、600和800 W）对总提取率（Y）、总多酚产率（TP）和类黄酮产率（TF）的影响。将常见的经验模型（一级模型、佩莱格双曲线模型、埃洛维奇对数模型和幂律模型）应用于提取过程。就统计参数（SS、 和AARD）而言，一级动力学模型与实验结果最为吻合。因此，研究了辐照功率对可调模型参数（ 和 ）的影响。发现辐照功率对 有显著影响，而其对响应渐近值的影响可忽略不计。在600 W的辐照功率下获得了实验测定的最高 （2.28分钟），而通过最大拟合曲线测定确定的最佳辐照功率预测在665 W时 最高（2.36分钟）。
