327 research outputs found
Preliminary phytochemical and antileishmanial studies of the ethanolic extracts of Pterodon pudescens
Profiling of antioxidant potential and phytoconstituents of Plantago coronopus
The halophyte species Plantago coronopus has several described ethnomedicinal uses, but few reported biological activities. This work carried out for the first time a comparative analysis of P. coronopus organs in terms of phenolic composition and antioxidant activity of organic and water extracts from roots, leaves and flowers. The leaves contents in selected nutrients, namely amino acids and minerals, are also described. Roots (ethyl acetate and methanol extracts) had the highest radical scavenging activity (RSA) towards 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radicals, while leaves (hexane extract) had higher RSA on nitric oxide radical and iron chelating ability. High performance liquid chromatography (HPLC) analysis identified eighteen phenolics from which salicylic acid and epicatechin are here firstly described in Plantago species. Leaves had mineral levels similar to those of most vegetables, proving to be a good source for elements like calcium, sodium, iron and magnesium, and also for several of the essential amino acids justifying it use as food. Our results, especially those regarding the phenolics composition, can explain the main traditional uses given to this plantain and, altogether, emphasize the potential of P. coronopus as a source of bioactive molecules particularly useful for the prevention of oxidative stress-related diseases
Fenóis, peroxidase e polifenoloxidase na resistência do cafeeiro a Meloidogyne incognita
Chilling effect on soluble sugars, respiration rate, total phenolics, peroxidase activity and dormancy of onion bulbs
Efeito de extratos de plantas medicinais no controle de Colletotrichum acutatum, agente causal da flor preta do morangueiro
Avaliação da resposta hematológica dos animais tratados com Typha domingensis Pers e Operculina hamiltonii sobre nematóides gastrintestinais de caprinos
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