Investigação das atividades antioxidante e antimicrobiana de duas espécies arbóreas ocorrentes no bioma caatinga

Nunes, Fábio Rogério Santos; Dias, Hosana Maria Cordeiro; Cavalcante, Giani Maria

doi:10.18468/estcien.2016v6n1.p81-90

Cited by 6 publications

(7 citation statements)

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“…Foi observada ausência de atividade dos extratos brutos de favela, fedegoso e quixaba diante das cepas padrão de Staphylococcus aureus ATCC 25923, Escherichia coli ATCC 25922 e Pseudomonas aeruginosa ATCC 27853, testados pelo método de difusão em disco. Nunes et al (2016) avaliaram a atividade antimicrobiana do extrato etanólico da casca da espécie Cnidoscolus quercifolius pelo método de difusão em ágar por meio de poço. Como controle positivo, foram utilizados 20 µL/mg de ciprofloxacina e gentamicina e 20 µL de DMSO 0,1%, usado como controle negativo.…”

Section: Resultsunclassified

Avaliação do efeito antimicrobiano in vitro dos extratos etanólicos de Plectranthus neochilus e Cnidoscolus quercifolius

et al. 2020

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Avaliou-se o efeito antimicrobiano in vitro dos extratos etanólicos de Plectranthus neochilus e Cnidoscolus quercifolius de forma isolada e associadas. Na 1ª etapa, utilizaram-se os extratos em concentrações 1%, 2,5%, 5% e 10%. Na 2ª etapa, utilizaram-se apenas extratos brutos. Para o teste de sensibilidade dos extratos, utilizaram-se cepas padrão Staphylococcus aureus ATCC 25923, Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853. Nas duas etapas, realizaram-se os mesmos testes de sensibilidade. As placas foram semeadas e lidas após 24 horas de incubação em estufa a 37ºC. De acordo com os resultados, conclui-se que não houve atividade bacteriana dos extratos etanólicos estudados isolados, bem como associados diante das cepas padrão de Staphylococcus aureus, Escherichia coli e Pseudomonas aeruginosa nas diferentes metodologias aplicadas quando comparadas com o antibiótico padrão (amicacina).

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Section: Resultsunclassified

Avaliação do efeito antimicrobiano in vitro dos extratos etanólicos de Plectranthus neochilus e Cnidoscolus quercifolius

et al. 2020

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“…In the extracts of the seeds and the pressed cake, several phenolic compounds were observed, including syringic acid (1), ellagic acid (2), catechin (3), quercetin (4), vanillin ( 5), eugenol (6), vanillic acid (7), and, especially, gallic acid (8) [46]. Alves et al [48] investigated the chemical composition of essential oils from various parts of C. quercifolius (leaves, flowers and bark) obtained by hydrodistillation and, using GC-MS, identified 31 compounds in the leaves (9-11, 39-66), 30 compounds in the flowers (10,12,13,42,43,44,46,49,52,54,55,58,60,(67)(68)(69)(70)(71)(72)(73)(74)(75)(76)(77)(78)(79)(80)(81)(82)(83), and 18 compounds in the stem bark (15,41,64,(84)(85)(86)(87)(88)(89)(90)(91)(92)(93)(94)(95)…”

Section: Chemical Study Of C Quercifoliusmentioning

confidence: 99%

Chemical Composition and Biological Activities of the Cnidoscolus quercifolis: A Review

et al. 2023

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Cnidoscolus quercifolius, commonly known as “favela”, “faveleira”, “urtiga-branca”, and “cansanção”, is a plant that is native to the Caatinga biome. The species is extremely tolerant to adverse weather conditions and is of great importance for the population of the semi-arid region, as it has uses in afforestation, the recovery of degraded areas, sawmills, fuels, animal feed, and food production. In addition, the species is popularly known for its medicinal uses, and it has been scientifically tested for such purposes. The objective of the research was to compile updated information about the chemical composition, biological activities, and botanical characteristics of the species, in addition to information about its use in folk medicine. It was observed that C. quercifolius has a strong usage among people in the Brazilian Caatinga for ophthalmic and other medical conditions, including inflammation in general, scarring, and infections. Studies involving the species have shown its effectiveness as antinociceptive, cytotoxic agent, antioxidant, and insecticide, as also thanks to its anti-inflammatory, hypoglycemic, and repellent characteristics. Other tests have indicated that the vegetable oil from the seed is promising for food consumption. This work demonstrates that further investigations are still necessary to determine the chemical composition and the toxicological characteristics of the species in order to support subsidies for the possible development of new drugs. Such future investigations may include the isolation of its substances, an analysis of its pharmacological activities, and a deepening of the understanding of the mechanisms of action of its various plant products.

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“…Sci., Bom Jesus, v.9, n.3, p.402-411, Jul./Sep. 2018 mostly for the many biological actions it can perform (Valenzuela Soto et al, 2015;Jaramillo et al, 2015;Nunes et al, 2016). The plant extracts from various species of this genus have also been reported to induce alterations in the biological cycles of the arthropod-pests (Boiça Junior et al, 2013;Carvalho et al, 2014;Gomes et al, 2014;Candido & Bezerra, 2015).…”

Section: Introductionmentioning

confidence: 99%

Bioactivity of the organic extracts of Cnidoscolus urens (L.) Arthur (Euphorbiaceae) on the cabbage-caterpillar

et al. 2018

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The aim of the current study was to identify the phytochemical profile of several different fractions of the ethanolic extract taken from the cansanção-nettle leaves, as well as assess the bioactivity on Ascia monuste orseis. After gathering the plant samples, the species was identified, and the organic extracts were collected after processing was completed in the laboratory. The fractions obtained were as follows: hexane (Hex-F), chloroform (CHCl3-F), ethyl acetate (AcOEt-F) and methanolic (MeOH-F). In the context of the insect, the biological parameters evaluated included the incubation period, egg viability, length of the larval stage and mortality, pupal viability and weight, number of defective adults and leaf consumption. The extracts revealed a large percentage of anthraquinones, coumarins, anthracene derivatives, terpenes and steroids and water-soluble tannins. All the organic extracts were confirmed to exert a negative effect on the embryonic, larval, pupal and adult phases of the cabbage-caterpillar, implying that the chloroform fraction induced 100% mortality in this pierid. It was also possible to verify that all the fractions also affected the feeding behavior of the cabbage-caterpillar, decreasing the leaf consumption by the larvae during the organic extract treatments.

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Investigação das atividades antioxidante e antimicrobiana de duas espécies arbóreas ocorrentes no bioma caatinga

Cited by 6 publications

References 1 publication

Avaliação do efeito antimicrobiano in vitro dos extratos etanólicos de Plectranthus neochilus e Cnidoscolus quercifolius

Avaliação do efeito antimicrobiano in vitro dos extratos etanólicos de Plectranthus neochilus e Cnidoscolus quercifolius

Chemical Composition and Biological Activities of the Cnidoscolus quercifolis: A Review

Bioactivity of the organic extracts of Cnidoscolus urens (L.) Arthur (Euphorbiaceae) on the cabbage-caterpillar

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