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232 results for “Phytochemicals”
Phytochemical Screening, Antioxidant and Antimicrobial Activity of Fabric Coated with Catharanthus Roseus Ethanolic Flowers Extract
<p>The aim of the present study was to evaluate the free radical scavenging and antimicrobial activity of fabric coated of the Catharanthus Roseus. Ethanol flowers extract. Free radical scavenging was determined by using 1, 1-diphenyl-2-picrylhydrazyl (DPPH), Reducing power, Hydroxyl radical scavenging assay and antimicrobial activity of Staphylococcus aureus, Escherichia coli and standard drug of Streptomycin using disc diffusion method. This inhibition was observed with the individual extracts and when they were used in lower concentrations with ineffective antibiotics. The present investigation clearly indicates that the Catharanthus Roseus possesses antioxidant properties and serve as free radical inhibitors or scavengers, acting possibly as primary antioxidants.</p><p>Keywords</p><p>Catharanthus Roseus, Fabric coated, DPPH, Staphylococcus aureus Escherichia coli, Streptomycin, Antioxidant,</p>
Comparative metabolomics of fruits and leaves in a hyperdiverse lineage suggests fruits are a key incubator of phytochemical diversification
<p>Data files, chromatograms, and metadata for the Frontiers in Plant Science article "Comparative metabolomics of fruits and leaves in a hyperdiverse lineage suggests fruits are a key incubator of phytochemical diversification" . </p> <p>doi: 10.3389/fpls.2021.693739</p>
Dr. Duke's Phytochemicals and Ethnobotanical Codes
<p><strong>Abstract:</strong></p> <p>These Phytochemical and Ethnobotanical databases offer convenient search functionalities for plants, chemicals, bioactivity, and ethnobotany. They cover a wide range of plants and their chemical profiles, allowing users to browse and search in various user-oriented ways. This is a resource that caters to pharmaceutical, biomedical, and nutritional researchers, looking to improve the treatment of diseases in a natural way. The data originates from extensive compilations by a former Chief of USDA's Economic Botany Laboratory, specifically their Handbook of phytochemical constituents of GRAS herbs and other economic plants. Users can download a PDF or spreadsheet format containing chemical lists and their known activities. </p> <p><strong>Instruction: </strong></p> <p>Data was cleaned and duplicates were removed.</p> <p><strong>Inspiration:</strong></p> <p>The dataset was uploaded to UBRITE for "DGR_DEPOT” summer 2023 team project. </p> <p><strong>Acknowledgements:</strong></p> <p>Duke, J. A. (1992). Database of Biologically Active Phytochemicals and Their Activity. Boca Raton, Fla: CRC Press. ISBN 9780849336713. 183 pp. [Available on diskette with manual. https://www.crcpress.com/Database-of-Biologically-Active-Phytochemicals-... ]</p> <p><strong>U-BRITE Last Updated July 5, 2023</strong></p>
Dr. Duke's Phytochemicals and Ethnobotanical Ethnobot
<p><strong>Abstract:</strong></p> <p>These Phytochemical and Ethnobotanical databases offer convenient search functionalities for plants, chemicals, bioactivity, and ethnobotany. They cover a wide range of plants and their chemical profiles, allowing users to browse and search in various user-oriented ways. This is a resource that caters to pharmaceutical, biomedical, and nutritional researchers, looking to improve the treatment of diseases in a natural way. The data originates from extensive compilations by a former Chief of USDA's Economic Botany Laboratory, specifically their Handbook of phytochemical constituents of GRAS herbs and other economic plants. Users can download a PDF or spreadsheet format containing chemical lists and their known activities. </p> <p><strong>Instruction: </strong></p> <p>Data was cleaned and duplicates were removed.</p> <p><strong>Inspiration:</strong></p> <p>The dataset was uploaded to UBRITE for "DGR_DEPOT” summer 2023 team project. </p> <p><strong>Acknowledgements:</strong></p> <p>Duke, J. A. (1992). Database of Biologically Active Phytochemicals and Their Activity. Boca Raton, Fla: CRC Press. ISBN 9780849336713. 183 pp. [Available on diskette with manual. https://www.crcpress.com/Database-of-Biologically-Active-Phytochemicals-... ]</p> <p><strong>U-BRITE Last Updated July 5, 2023</strong></p>
Dr. Duke's Phytochemicals and Ethnobotanical Common Names
<p><strong>Abstract:</strong></p> <p>These Phytochemical and Ethnobotanical databases offer convenient search functionalities for plants, chemicals, bioactivity, and ethnobotany. They cover a wide range of plants and their chemical profiles, allowing users to browse and search in various user-oriented ways. This is a resource that caters to pharmaceutical, biomedical, and nutritional researchers, looking to improve the treatment of diseases in a natural way. The data originates from extensive compilations by a former Chief of USDA's Economic Botany Laboratory, specifically their Handbook of phytochemical constituents of GRAS herbs and other economic plants. Users can download a PDF or spreadsheet format containing chemical lists and their known activities. </p> <p><strong>Instruction: </strong></p> <p>Data was cleaned and duplicates were removed.</p> <p><strong>Inspiration:</strong></p> <p>The dataset was uploaded to UBRITE for "DGR_DEPOT” summer 2023 team project. </p> <p><strong>Acknowledgements:</strong></p> <p>Duke, J. A. (1992). Database of Biologically Active Phytochemicals and Their Activity. Boca Raton, Fla: CRC Press. ISBN 9780849336713. 183 pp. [Available on diskette with manual. https://www.crcpress.com/Database-of-Biologically-Active-Phytochemicals-... ]</p> <p><strong>U-BRITE Last Updated July 5, 2023</strong></p>
Data on specialist and generalist herbivory, environmental variation, and phytochemical similarity from the Atlantic Rainforest of Brazil: 2013-2014
What: These are data on specialist and generalist herbivory from naturally occurring Piper plants as well as environmental data collected in 10 m diameter plots across sites in the Atlantic Rainforest of Brazil. Data also include chemical similarity calculated as the Morisita similarity index for species in a given plot and chemical modules that demonstrate classes of compounds that group together and influence herbivory. Why: Data were collected to understand factors that influence herbivory and tropical forest richness with a particular focus on secondary chemistry metabolomics. Where: Field sites include São Bento de Sapucaí (-22.8758, -45.8581), Parque Nacional de Itatiaia (-22.3698, -44.6285), Parque Estadual de Intervales (-24.3088, -48.2736), and Parque Estadual de Serra do Mar - Núcleo Pincinguaba (-23.6200, -46.7222). When: Data were collected in the field from Dec 2013 – May 2014. How: Field data were collected in 10 m diameter plots centered on randomly located Piper plants. Chemical data come from 1H-NMR metabolomics.
Climatic history, constraints, and the plasticity of phytochemical traits under water stress
<p><span>Environmental stress can induce changes in organismal traits and in resulting intraspecific variation. The nature of such effects will depend on the plasticity of trait expression and on any ecological constraints to such expression. Plants can mitigate abiotic stress, like drought, by changing their chemistry, but the ability to induce costly metabolites may be under strong local selection and ecologically constrained. Here we asked whether climate at the seed source predicts plant chemical plasticity in response to water stress and what the consequences are for intraspecific variation in phytochemical traits. To this end, we used common gardens of two widespread species of western milkweed (<em>Asclepias fascicularis </em>and <em>Asclepias speciosa</em>)<em> </em>that had been collected from sites across an aridity gradient. Both species produce high concentrations of leaf flavonols, which are hypothesized to mitigate water stress by functioning as antioxidants. These compounds were found in higher constitutive concentrations in plants sourced from drier sites, and both species responded to water stress in the common garden by increasing leaf flavonol concentrations. Interestingly, flavonol plasticity was higher in plants sourced from wetter sites in <em>A. fascicularis</em>, with similar, but weaker, patterns in <em>A. speciosa</em>. These opposing patterns in constitutive and induced flavonol expression reduced the variation between populations in leaf flavonol concentrations under water stress. </span><span>These results suggest that</span><span> local adaptation in plants can </span><span>shape phytochemical strategies for water limitation but that the cost of metabolite production may ultimately limit the range of phytochemical variation.</span></p>
Figure 2 in Phytochemical characterization, and antioxidant and antibacterial activities of the hydroethanolic extract of Anadenanthera peregrina stem bark
Figure 2. HPLC-PDA chromatographic profiles (λ = 254 nm) of: (A) sample extract; (B) gallic acid standard; (C) catechin standard; and (D) epicatechin standard, followed by UV spectra (190-400 nm).
Figure 1 in Phytochemical characterization, and antioxidant and antibacterial activities of the hydroethanolic extract of Anadenanthera peregrina stem bark
Figure 1. Erythrocyte hemolysis in a 5% red blood cell suspension by the hydroethanolic extract of A. peregrina stem bark. (A) 5% suspension of red blood cells; (B) hemolysis after 1 min of reaction; (C) advanced hemolysis after 5 min; and (D) completely hemolyzed red blood cells within 10 min of reaction. Bars: At (A) 1.000×; (B) 500×; (C) 650×; and (D) 1.800×.
Figure 1 in Phytochemical screening and evaluation of antioxidant, total phenolic and flavonoid contents in various weed plants associated with wheat crops
Figure 1. DPPH Assay for Convolvulus arvensis, Chenopodium murale, Avena fatua, Phalaris minor extracts in different solvents.
Figure 5. B in Phytochemical and biological attributes of Bauhinia variegata L. (Caesalpiniaceae)
Figure 5. B. variegata extracts result forα-amylase inhibition assay. The standard drug used is Acarbose IC50 33.43 ± 0.28 µg/mL. All procedures are repeated three times and results are mentioned as mean ± SD. nH = n-hexane; EA = ethyl acetate; MeOH = methanol; DW = distilled water; IC 50 = concentration for 50% inhibition; (S) = stem; (L) = leaf; (F) = flower; (B) = bark; (R) = root.
Figure 4 in Phytochemical and biological attributes of Bauhinia variegata L. (Caesalpiniaceae)
Figure 4. Brine shrimp lethality assay of B. variegata extracts. Doxorubicin is used as a standard with an LC50 5.63 ± 0.25 µg/ mL. All values are obtained thrice and shown as mean ± SD. nH = n-hexane; EA = ethyl acetate; MeOH = methanol; DW = distilled water; LC50 = concentration for 50% lethality; (S) = stem; (L) = leaf; (F) = flower; (B) = bark; (R) = root.
Figure 3. H 2O2 in Phytochemical screening and evaluation of antioxidant, total phenolic and flavonoid contents in various weed plants associated with wheat crops
Figure 3. H 2O2 Scavenging assay for Convolvulus arvensis, Chenopodium murale, Avena fatua, Phalaris minor extracts in different solvents.
In silico study for screening of natural phytochemicals and metformin as a potential inhibitor of interleukin 6 as target for covid-19
<p>Interleukin 6 is considered the corner stone at treatment of covid-19 specially the severe cases and it is the marker of severe inflammation and the gate of cytokine storm , so the future studies for this important proinflammatory cytokine storm , the first target for speed recovery from sars cov2 it is overcoming this cytokine which is immune response to virus , it is responsible about the fever and most sypmtoms of severity of covid-19 also may has role at smell and taste , so this study target this interleukin-6 by discovering natural potential inhibitors of IL-6. We do molecular docking for some natural phytochemicals like EGCG , bromelain , luteolin , vitexin and isovitexin , in adding to metformin and polyetheylene glycocl </p>
The data sheet of "Phytochemicals, Proximate Composition, Minerals and Volatile Oil Analysis of Zanthoxylum acanthopodium DC. Fruits"
<p>The dataset of ‘Phytochemicals, Proximate Composition, Minerals and Volatile Oil Analysis of <em>Zanthoxylum acanthopodium</em> DC. Fruits’</p>
Climatic history, constraints, and the plasticity of phytochemical traits under water stress
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Intraspecific phytochemical diversity increases with productivity but has mixed effects on herbivory
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Caterpillars on a phytochemical landscape: the case of alfalfa and the Melissa blue butterfly
<p>Modern metabolomic approaches that generate more comprehensive phytochemical profiles than were previously available are providing new opportunities for understanding plant-animal interactions. Specifically, we can characterize the phytochemical landscape by asking how a larger number of individual compounds affect herbivores and how compounds covary among plants. Here we use the recent colonization of alfalfa (Medicago sativa) by the Melissa blue butterfly (Lycaeides melissa) to quantify plant metabolites and the performance of caterpillars as affected by both individual compounds and suites of covarying phytochemicals. We find that survival, development time and adult weight are all associated with variation in nutrition and toxicity, including biomolecules associated with plant cell function as well as putative anti-herbivore action. The plant-insect interface is complex, with clusters of covarying compounds in many cases encompassing divergent effects on different aspects of caterpillar performance. Individual compounds with the strongest associations are largely specialized metabolites, including alkaloids, phenolic glycosides and saponins. The saponins are represented in our data by more than 25 individual compounds with beneficial and detrimental effects on L. melissa caterpillars, which highlights the value of metabolomic data as opposed to approaches that rely on total concentrations within broad defensive classes.</p>
Data for: Phytochemical shift from condensed tannins to flavonoids in transgenic Betula pendula decreases consumption and growth but improves growth efficiency of Epirrita autumnata larvae
<p>Despite active research, antiherbivore activity of specific plant phenolics remains largely unresolved. We constructed silver birch (<em>Betula pendula</em>) lines with modified phenolic metabolism to study the effects of foliar flavonoids and condensed tannins on consumption and growth of larvae of a generalist herbivore, the autumnal moth (<em>Epirrita autumnata</em>). We conducted a feeding experiment using birch lines in which expression of dihydroflavonol reductase (<em>DFR</em>), anthocyanidin synthase (<em>ANS</em>) or anthocyanidin reductase (<em>ANR</em>) had been decreased by RNA interference. Modification-specific effects on plant phenolics, nutrients and phenotype, and on larval consumption and growth were analyzed using uni- and multivariate methods. Inhibiting <em>DFR</em> expression increased the concentration of flavonoids at the expense of condensed tannins, and silencing <em>DFR </em>and <em>ANR </em>decreased leaf and plant size. <em>E. autumnata </em>larvae consumed on average 82% less of DFRi plants than of unmodified controls, suggesting that flavonoids or glandular trichomes deter larval feeding. However, larval growth efficiency was highest on low-tannin DFRi plants, indicating that condensed tannins (or their monomers) are physiologically more harmful than non-tannin flavonoids for <em>E. autumnata </em>larvae. Our results show that genetic manipulation of the flavonoid pathway in plants can effectively be used to produce altered phenolic profiles required for elucidating the roles of low-molecular weight phenolics and condensed tannins in plant–herbivore relationships, and suggest that phenolic secondary metabolites participate in regulation of plant growth.</p>
Phytochemical Analysis and Antimicrobial Studies of Leaves and Roots of P. angulata
<p><strong>Quantifying the bioactive compounds present in plant parts (leaves and roots). This study aimed to perform comprehensive qualitative phytochemical analysis and antimicrobial analysis of extract of leaves and roots of p.angulata. phytochemicals test where carried out on the extracts to detect the presence of phytochemicals such as phenols, flavonoids, saponins, alkaloids, tannins and terpenoids etc. Different chemical tests were employed to confirm the presence of these compounds. The color change indicates the presence of specific phytochemicals. The results obtained from the qualitative analysis revealed the presence of phenols, flavonoids, saponins, alkaloids, tannins, terpenoids, phlobatannins, anthraquinones, glycosides and steroids in both the leaves and roots part of the plant. However the results of the antimicrobial test obtained from the extracts of both leaves and roots extracts of </strong><i><strong>Physalis angulata</strong></i><strong> revealed that both the crude extracts of the leaves and roots inhibited Anti-microbial activities against </strong><i><strong>Bacillus species,</strong></i><strong> </strong><i><strong>Styphylococcus aureus</strong></i><strong>, Plasmodium parasites and Streptococcus species except the leaves extract of acetone which does not act against </strong><i><strong>Styphylococcus aureus</strong></i><strong>. The facts that the plant was active against laboratory isolates are also an indication that the plant parts has medicinal values and Potential therapeutic or pharmacological properties. The findings of this analysis can be further utilized for developing drugs, functional foods, or dietary supplements with specific phytochemical.</strong></p>
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International Brain Laboratory public data
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OpenNeuro
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