PROSPECÇÃO FITOQUÍMICA E ATIVIDADE ANTIFÚNGICA DE EXTRATOS FLORAIS DE Tabebuia roseoalba (Ridl.) Sandwith E Jacaranda cuspidifolia Mart.

Prado, João Manoel Almeida do; Filho, Antônio Carlos Pereira de Menezes; Ventura, Matheus Vinicius Abadia; Castro, Carlos Frederico de Souza; Teixeira, Marconi Batista; Soares, Frederico Antônio Loureiro

doi:10.31413/nativa.v10i4.14447

Cited by 3 publications

(2 citation statements)

References 8 publications

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“…Regarding antifungal activity, our results demonstrated significant effects for C. acutatum and C. gloeosporioides, especially for concentrations 100-300 µL mL -1 . Similar mycelial inhibition effects for both Colletotrichum species were also described by Prado et al (2022) evaluating the floral extracts of T. roseoalba and J. cuspidifolia where at concentrations 100-300 µL mL -1 the average values were 62-77 and 44-56% and between 51-100 and 93-100%, respectively. Although the floral ethanolic extract of S. aptera did not show an inhibitory effect on S. sclerotiorum and R. stolonifer, Prado et al (2022) found strong inhibition activity for these two strains that demonstrated to be sensitive to floral extracts of T. roseoalba and J. cuspidifolia.…”

Section: Discussionsupporting

confidence: 74%

Phytochemistry and antifungal activity of floral ethanolic extract of Schultesia aptera Cham. (Gentianaceae f.)

Silva,

Carvalho,

Sharma

et al. 2024

Braz. J. of Sci.

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Schultesia aptera is a plant species belonging to the Gentianaceae family found in Cerrado areas of Brazil. S. aptera presents a low number of studies, mainly phytochemical. This study aimed to evaluate the qualitative phytochemical profile and antifungal activity of agricultural interest of the floral ethanolic extract of S. aptera. Flowers were collected in April 2024. The ethanolic extract was obtained by maceration and then freeze-drying. The antifungal assays were carried out at different concentrations (25, 50, 100, 200 and 300 µL mL-1) on the fungal strains of Sclerotinia sclerotiorum, Colletotrichum acutatum, Colletotrichum gloeosporioides and Rhizopus stolonifer. Phytochemical prospecting demonstrated the presence of 10 groups of pharmaceutical, biotechnological and agricultural interest that have antifungal activities. The floral extract of S. aptera demonstrated effectiveness between the highest concentrations 100-300 µL mL-1 with inhibition rates between 33-71 for C. acutatum and between 31-67% for C. gloeosporioides. S. sclerotiorum and R. stolonifer strains were resistant to all concentrations. The floral ethanolic extract of Schultesia aptera demonstrated to be an antifungal agent on the genus Colletotrichum and can be used to control and inhibit Colletotrichum acutatum and Colletotrichum gloeosporioides.

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Section: Discussionsupporting

confidence: 74%

Phytochemistry and antifungal activity of floral ethanolic extract of Schultesia aptera Cham. (Gentianaceae f.)

Silva,

Carvalho,

Sharma

et al. 2024

Braz. J. of Sci.

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“…These phytochemical groups observed in the floral extract have diverse biological activities in the treatment of liver diseases, as well as anti-inflammatory, analgesic, cytotoxic, antifungal, antibacterial, antitumor, anticancer, antiscorbutic, and cardiovascular disorders (BAWAZEER et al, 2021;PRADO et al, 2022).…”

Section: Discussionmentioning

confidence: 99%

PHYTOCHEMISTRY AND BIOLOGICAL ACTIVITIES OF FLORAL ETHANOLIC EXTRACT FROM Pontederia cordata L. (Pontederiaceae)

Silva,

Pereira de Menezes Filho,

Sharma

et al. 2024

NAT

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Pontederia cordata, an annual aquatic species with bioremediation properties, was the subject of our study. We collected P. cordata inflorescences and produced an ethanolic extract. Our qualitative evaluation of the phytochemistry revealed several significant phytochemical groups. A UV-Vis spectrophotometer scan was conducted to identify the high-concentration absorption of the main phytochemical groups. The DPPH free radical reduction assay determined the antioxidant activity, the total phenolic content by colorimetry, and the cytotoxic action at different concentrations on the lethality in Artemia salina. Antifungal activity was evaluated against phytopathogens Sclerotinia sclerotiorum, Colletotrichum gloeosporioides, C. acutatum, and Rhizopus stolonifer. The photoprotective effect was determined by UV spectrophotometry. Our findings revealed the presence of several phytochemical groups, especially flavonoids, with potential antioxidant activity in reducing DPPH by 89%, total phenolics at 487 mg GAE g-1, and lethality at 345.4 µg mL-1. We also observed antifungal activity against R. stolonifer with 44% mycelial inhibition and UVA and UVB photoprotective effects. The floral extract of Pontederia cordata demonstrated a positive impact on the biological activities tested, thereby instilling confidence in the validity of our research and encouraging further biological studies with this plant species. Keywords: Pontederia cordata; antioxidant activity; alkaloids; photoprotective activity; Sclerotinia sclerotiorum. Fitoquímica e atividades biológicas do extrato etanólico floral de Pontederia cordata L. (Pontederiaceae) RESUMO: Pontederia cordata é uma espécie aquática que produz flores anualmente e é utilizada como espécie vegetal biorremediadora. Foram coletadas inflorescências de P. cordata e produzido o extrato etanólico. A fitoquímica para diversos grupos fitoquímicos foi avaliada qualitativamente. Uma varredura espectrofotômetro UV-Vis foi realizada para determinar a absorção em alta concentração dos principais grupos fitoquímicos. O ensaio de redução de radicais livres DPPH determinou a atividade antioxidante, o conteúdo fenólico total por colorimetria e a ação citotóxica em diferentes concentrações sobre a letalidade em Artemia salina. A atividade antifúngica foi avaliada contra os fitopatógenos Sclerotinia sclerotiorum, Colletotrichum gloeosporioides, C. acutatum e Rhizopus stolonifer. O efeito fotoprotetor foi determinado por espectrofotometria UV. Vários grupos fitoquímicos foram observados, especialmente flavonóides, potencial atividade antioxidante na redução do DPPH 89%, fenólicos totais 487 mg EAG g-1 e letalidade = 345,4 µg mL-1. A atividade antifúngica, especialmente para R. stolonifer, apresenta 44% de inibição micelial e efeitos fotoprotetores UVA e UVB. O extrato floral de Pontederia cordata demonstrou impacto positivo nas atividades biológicas testadas, incentivando novos estudos biológicos com esta espécie vegetal. Palavras-chave: Pontederia cordata; atividade antioxidante; alcalóides; atividade fotoprotetora; Sclerotinia sclerotiorum.

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Phytochemical prospecting and biological activities of the floral extract from [Impatiens walleriana (Hook.)] (Balsaminaceae)

Ferreira¹,

Filho

Sharma³

et al. 2023

Braz. J. of Sci.

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Impatiens walleriana is a plant species that presents diversity and variety of colors among flowers. This plant species has wide distribution and is easily cultivable throughout the world including natural gardens, greenhouses and parks. This study aims at evaluating the floral extracts of I. walleriana in terms of their qualitative phytochemical constitution and antifungal activities on Sclerotinia sclerotiorum, Colletotrichum gloeosporioides and Colletotrichum acutatum, as well as on the reduction of DPPH free radical and on the inhibition of acetylcholinesterase (AChE). Flowers were collected from two cultivars Pink and White of I. walleriana and the extract produced by maceration. The phytochemical qualitative assay was carried out using different reagents for determination by precipitation or colorimetric alteration. The antifungal test was carried out in Petri dishes with different concentrations of floral extract on S. sclerotiorum, C. gloeosporioides and C. acutatum. The DPPH reduction assay was performed by percentage and as standard antioxidant ascorbic acid. The acetylcholinesterase inhibition test was performed in percentage using Electrophorus electricus. Positive results were observed for phenolics, anthocyanins, organic acids, alkaloids, catechins, tannins, carboxylic acids, hemolytic saponins and sesquiterpene lactones. Fungal inhibition effect was better observed for cv. Pink with 10-26%, 6% and between 9-11% on S. sclerotiorum, C. gloeosporioides and C. acutatum, respectively. The DPPH reduction activity showed satisfactory results for cv. Pink 49% followed by cv. White 41%. And for inhibition of AChE cv. Pink with 30% and cv. White with 27%. The floral extracts of Impatiens walleriana show good results for the biological activities tested, especially for cv. Pink.

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PROSPECÇÃO FITOQUÍMICA E ATIVIDADE ANTIFÚNGICA DE EXTRATOS FLORAIS DE Tabebuia roseoalba (Ridl.) Sandwith E Jacaranda cuspidifolia Mart.

Cited by 3 publications

References 8 publications

Phytochemistry and antifungal activity of floral ethanolic extract of Schultesia aptera Cham. (Gentianaceae f.)

Phytochemistry and antifungal activity of floral ethanolic extract of Schultesia aptera Cham. (Gentianaceae f.)

PHYTOCHEMISTRY AND BIOLOGICAL ACTIVITIES OF FLORAL ETHANOLIC EXTRACT FROM Pontederia cordata L. (Pontederiaceae)

Phytochemical prospecting and biological activities of the floral extract from [Impatiens walleriana (Hook.)] (Balsaminaceae)

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