Publications by authors named "Elton Luis Gasparotto Denardin"

2,4-Dichlorophenoxyacetic acid (2,4-D) is an herbicide widely used in crops against broadleaf weeds. However, 2,4-D residues are considered an environmental pollutant in bodies of water. Phytoremediation with is a substantial strategy to remove 2,4-D from the aquatic environment.

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Paraquat (PQ) is a herbicide widely used in agriculture to control weeds. The damage caused to health through intoxication requires studies to combating its damage to health. Bougainvillea glabra Choisy is a plant native to South America and its bracts contain a variety of compounds, including betalains and phenolic compounds, which have been underexplored about their potential applications and benefits for biological studies to neutralize toxicity.

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In this study, we evaluated the toxicological and antiproliferative effects of B. glabra Choisy bract extract (BGCE) in its free and loaded into liposomes forms administered to C. elegans mutants with let-60 gain-of-function (gf).

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In this study, we evaluated, in a pioneering way, the influence of wavelengths from the decomposition of white light on the production and physicochemical properties of silver nanoparticles (AgNPs). Bearing in mind a process of green synthesis, an extract of the bracts of Bougainvillea glabra Choisy (BgC) was used, a species native to tropical and subtropical regions and frequently used in ornamentation, possessing in its photochemical composition, biomolecules capable of acting as reducing agents for convert Ag to Ag. We used light-emitting diodes (LED) to obtain the desired wavelengths (violet, blue, green, yellow, orange, and red) in the test called rainbow, and we evaluated the obtaining of AgNPs compared to white LED light, nature, and absence of light.

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Developed and validated a fast, simple and effective method based on the use of DLLME technique and determination by GC-MS of 26 pesticides in SE. To carry out the extraction of the pesticides of the matrix, 70 μL of mix of pesticides (1.5 μg/mL) was added to 5.

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Article Synopsis
  • Phytoremediation is a strategy to minimize environmental toxicity, and the plant Plectranthus neochilus has previously shown potential in breaking down the herbicide 2,4-D.
  • This study aimed to examine the changes in the plant's essential oil after treating 2,4-D, assess its antimicrobial properties, and evaluate the toxicity of both the plant tea and the waste produced post-decontamination.
  • Results indicated that while the essential oil remains suitable as an antimicrobial agent, the plant tea is toxic, and although the waste became less toxic after treatment, the phytoremediation efficiency still needs enhancement.
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The Asteraceae family is widely known for its therapeutic, aromatic, and nutritional properties. (), a member of the family, is widely used in folk medicine in southern Brazil. In this study, we aim to assess compounds present in root extracts of , and evaluate their antioxidant capacity and toxicity.

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Objective: This work was to evaluate the chemical constitution of the hydromethanolic (30/70 methanol-water) macerating extract obtained from the leaves of , as well as to study the antioxidant, antimicrobial, cytotoxic, and genotoxic activity of the species. . Phytochemical screening, antioxidant activity (total phenolic, total flavonoid, condensed tannins content, DPPH radical, and FRAP), antibacterial activity ( (clinical isolate), (clinical isolate), (clinical isolate), (clinical isolate)), and oxidative stress parameters (TBARS, carbonyl protein, and DCFH) were analyzed according to the literature.

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The possible phytoremediation capacity of Plectranthus neochilus (boldo) exposed to the commercial pesticide (Aminol) in soil and water through consecutive extractions (days interval) was evaluated. After the exposure period, tea leaves from the plant were analyzed in terms of the presence of 2,4-D, total antioxidant capacity (DPPH), concentration of total polyphenols and flavonoids for plants exposed to soil and water. In water, 2,4-D remained up to 67% in the 60 days of experiment in the control group, which provided the use of two treatment groups with the plant (one group of plants for 30 days and another group in the remaining 30 days in the same system), thus, a decontamination up to 49% of the 2,4-D was obtained in this system with water.

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