Średnicka-Tober Dominika, Hallmann Ewelina, Kopczyńska Klaudia, Góralska-Walczak Rita, Barański Marcin, Grycz Alicja, Seidler-Łożykowska Katarzyna, Rembiałkowska Ewa, Kazimierczak Renata
Department of Functional and Organic Food, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences, Nowoursynowska 159c, 02-776 Warsaw, Poland.
Bioeconomy Research Institute, Agriculture Academy, Vytautas Magnus University, K. Donelaičio Str. 58, 44248 Kaunas, Lithuania.
Metabolites. 2022 Sep 3;12(9):835. doi: 10.3390/metabo12090835.
In the present study, the roots of valerian ( L.) and lovage ( Koch.) from the organic and low-input conventional cultivation systems were subjected to the analysis of selected groups of phenolic compounds (phenolic acids, flavonoids) and antioxidant activity. Plants were grown in two consecutive vegetation seasons in the experimental plots located in western Poland. Phenolic acids and flavonoids were determined by high performance liquid chromatography (HPLC/UV-Vis), while the antioxidant activity of the samples was measured with the use of DPPH radical scavenging activity assay. The concentrations of phenolic acids (sum) and flavonoids (sum) were found to be higher in the conventional lovage roots, as compared to the organically grown lovage roots, while in the case of valerian, no significant effects of the cultivation system on the levels of the sums of these analyzed compounds were found. Furthermore, no significant effect of the cultivation system on the antioxidant activity of herbs was observed. Additional efforts could be invested in enhancing the potential of organic medicinal plants to consistently present the expected high concentrations of health-promoting antioxidants, which could be effectively brought through their post-harvest handling, storage and processing, and thus meet consumers' expectations at the stage when they reach the market.
在本研究中，对来自有机和低投入常规种植系统的缬草（缬草属）和独活（独活属）的根部进行了选定酚类化合物组（酚酸、黄酮类化合物）和抗氧化活性的分析。植物在位于波兰西部的试验田中连续两个生长季节种植。酚酸和黄酮类化合物通过高效液相色谱法（HPLC/UV-Vis）测定，而样品的抗氧化活性则通过DPPH自由基清除活性测定法进行测量。结果发现，与有机种植的独活根相比，常规种植的独活根中酚酸（总量）和黄酮类化合物（总量）的浓度更高，而对于缬草，未发现种植系统对这些分析化合物总量水平有显著影响。此外，未观察到种植系统对草药抗氧化活性有显著影响。可以投入更多努力来提高有机药用植物持续呈现预期高浓度促进健康抗氧化剂的潜力，这可以通过其收获后的处理、储存和加工有效实现，从而在它们进入市场阶段满足消费者的期望。
