Nutrición y Bromatología, Instituto Universitario de Investigación en Recursos Agrarios (INURA), Escuela de Ingenierías Agrarias, Universidad de Extremadura, 06007 Badajoz, Spain.
Int J Environ Res Public Health. 2021 Mar 3;18(5):2475. doi: 10.3390/ijerph18052475.
This study aims to evaluate the efficacy of two methods (agitation and ultra-sound) for extracting phenolic compounds from 15 native plants. Plant species collected in the Dehesa of Extremadura were used. The antioxidant, antihypertensive and antimicrobial activity of the phenolic extracts was investigated. Significantly different results were obtained when comparing the two extraction methods, with the highest concentrations of phenolic compounds found for ultrasound extraction. In addition, the extracts obtained for , , and showed the highest concentrations of phenolic compounds. The antioxidant activity was higher in the extracts of and obtained by ultrasound, as was the antihypertensive activity. Antimicrobial activity was also higher in the extracts obtained by ultrasound from and plants against bacteria and from against yeasts. Therefore, it can be concluded that, with the ultrasound extraction of phenolic compounds from , and plants, it is possible to obtain extracts with important functional properties, so they could be studied for their use in food with the aim of obtaining healthy and safe products, favouring the sustainability of the environment of the Dehesa Extremeña.
本研究旨在评估两种方法（搅拌和超声）从 15 种本地植物中提取酚类化合物的效果。使用了在埃斯特雷马杜拉的疏树草原中采集的植物物种。研究了酚类提取物的抗氧化、降压和抗菌活性。当比较两种提取方法时，得到了显著不同的结果，超声提取得到的酚类化合物浓度最高。此外，在超声提取的 、 、 和 提取物中发现了最高浓度的酚类化合物。超声提取的 和 提取物具有更高的抗氧化活性，而超声提取的 提取物具有更高的降压活性。超声提取的 和 植物提取物对细菌和 植物提取物对酵母的抗菌活性也更高。因此，可以得出结论，通过从 、 和 植物的超声提取酚类化合物，可以获得具有重要功能特性的提取物，因此可以研究它们在食品中的用途，以获得健康和安全的产品，促进埃斯特雷马杜拉疏树草原的环境可持续性。
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