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Phenolic Fingerprinting, Antioxidant, and Deterrent Potentials of Persicaria maculosa Extracts
Molecules ( IF 4.6 ) Pub Date : 2020-07-03 , DOI: 10.3390/molecules25133054
Luisa Quesada-Romero 1, 2 , Carlos Fernández-Galleguillos 3 , Jan Bergmann 1 , María-Eugenia Amorós 4 , Felipe Jiménez-Aspee 5 , Andrés González 4 , Mario Simirgiotis 3, 6 , Carmen Rossini 4
Affiliation  

Persicaria maculosa (Polygonaceae) (known as lady’s thumb) is an annual morphologically variable weed that is widely distributed in Chile. The purpose of this study was to investigate the antifeedant potential of methanolic (MeOH), ethanolic (EtOH), and dichloromethane (DCM) extracts from the aerial parts of this plant collected in the Valparaíso and Curicó provinces (Chile) and relate this activity to the antioxidant capacity and the presence of phenolic compounds in the extracts. A phenolic profile based on HPLC-ESI-MS/MS allowed the identification of 26 phenolic compounds, most of them glycosyl derivatives of isorhamnetin, quercetin, and kaempferol. In addition, the total phenolic content (TP), total flavonoids (TF), and antioxidant activity measured by 2,2-diphenyl-1-picrylhydrazyl (DPPH), superoxide anion scavenging (O2−), ferric-reducing antioxidant power (FRAP), and cupric-reducing antioxidant capacity (CUPRAC) of the extracts are reported. The antifeedant potentials of the plant extracts were tested against Epilachna paenulata, Pseudaletia adultera, Macrosiphum euphorbiae, and Diaphorina citri insects for the first time. The activity against the aphid M. euphorbiae was significant for the DCM extracts of plants from Valparaíso and Curicó (settling % = 23% ± 4% and 23% ± 5%, respectively). The antifeedant activities against the beetle E. paenulata and the lepidoptera P. adultera were significant for Valparaíso extracts, especially when tested against E. Paenulata (IFP = 1.0 ± 0.0). Finally, the MeOH and EtOH extracts from Valparaíso plants reduced the diet consumption of the psilid D. citri (p < 0.05). The results showed that P. maculosa is a good source of flavonoids with some antioxidant capacities and has potential interest as botanical eco-friendly alternative with deterrent activity.

中文翻译:

黄斑仙桃提取物的酚类指纹图谱、抗氧化和威慑潜力

Persicaria maculosa (Polygonaceae)(被称为瓢虫)是一种一年生形态可变的杂草,在智利广泛分布。本研究的目的是调查从瓦尔帕莱索省和库里科省(智利)收集的这种植物地上部分的甲醇 (MeOH)、乙醇 (EtOH) 和二氯甲烷 (DCM) 提取物的拒食潜力,并将此活动与抗氧化能力和提取物中酚类化合物的存在。基于 HPLC-ESI-MS/MS 的酚类图谱可以鉴定 26 种酚类化合物,其中大部分是异鼠李素、槲皮素和山奈酚的糖基衍生物。此外,总酚含量 (TP)、总黄酮 (TF) 和抗氧化活性通过 2,2-二苯基-1-苦基肼 (DPPH)、超氧阴离子清除 (O2−)、报告了提取物的铁还原抗氧化能力 (FRAP) 和铜还原抗氧化能力 (CUPRAC)。首次测试了植物提取物对 Epilachna paenulata、Pseudaletia Adultera、Macrosiphum euphorbiae 和 Diaphorina citri 昆虫的拒食潜力。对来自 Valparaíso 和 Curicó 的植物的 DCM 提取物对大戟蚜的活性显着(分别为沉降 % = 23% ± 4% 和 23% ± 5%)。Valparaíso 提取物对甲虫 E. paenulata 和鳞翅目 P. Adultera 的拒食活性显着,尤其是在针对 E. Paenulata 进行测试时 (IFP = 1.0 ± 0.0)。最后,来自瓦尔帕莱索植物的 MeOH 和 EtOH 提取物减少了 psilid D. citri (p < 0.05) 的饮食消耗。结果表明,P。
更新日期:2020-07-03
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