Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
28
datasets available to search
ShareScore release 0.7.1
Dataset results
28 results for “tannins”
Data from: The effect of probe density coverage on the detection of oenological tannins in quartz crystal microbalance with dissipation monitoring (QCM-D) experiments
<p>Polyphenols, crucial compounds in grapes, musts, and wines, influence grape ripening, must fermentation, and final wine quality. Current detection methods for polyphenols are expensive, time-consuming, and reliant on specialized laboratories and personnel. This study proposes the use of a functionalized acoustic sensor to address these limitations and efficiently detect oenological polyphenols.</p> <p>The method employs a quartz crystal microbalance with dissipation monitoring (QCM-D) combined with a gelatin-based probe layer to detect the target analyte. The sensor is functionalized by optimizing probe coverage density, accomplished through the use of 12-mercaptododecanoic acid (12-MCA) for probe immobilization onto the gold sensor surface, along with dithiothreitol (DTT) as a reducing and competitive binding agent. Varying concentrations of 12-MCA and DTT allow for control over probe density, with QCM-D measurements demonstrating effective adjustment, ranging from 0.2 × 10^13 to 2 × 10^13 molecules cm^−2. The study also explores the interaction between the probe and tannins, confirming the ability of the sensor to detect them. Notably, lower probe coverage yields higher detection signals when normalized to probe immobilization signals. Additionally, significant alterations in the mechanical properties of the functionalization layer occur after interaction with samples.</p> <p>Combining QCM-D with gelatin functionalization presents promising applications in the wine industry. This approach enables real-time monitoring, requires minimal sample preparation, and offers high sensitivity for quality control purposes.</p>
The effects of condensed tannins on behaviour and performance of a specialist aphid on Aspen
<p>Data and Rscripts used to generate the results in Díez Rodríguez, Kloth and Albrectsen: The effects of condensed tannins on behaviour and performance of a specialist aphid on Aspen.</p>
Effect of insecticide treatment on Salix interior stem tannin activity and elemental composition.
This dataset contains information on stem chemistry of Salix interior within experimental plots on the Tanana River. There are 6 permanent plots, each of which contains two fenced subplots and two unfenced subplots. Subplots are sprayed with either insecticide (insect-treated subplots) or water (controls) annually. This particular dataset contains chemistry data for leaves collected from insecticide-treated and control subplots only within fenced subplots. The intent was to measure the effect of insect herbivory on chemistry in the absence of browsing.
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>
Data for: Fabrication and characterization of antibacterial coatings using an amphoteric condensed tannin,Tanfloc
<p>This dataset presents comprehensive information on the development and characterization of antibacterial polyelectrolyte multilayer (PEM) coatings incorporating tanfloc, a plant-derived condensed tannin polymer with inherent antimicrobial properties. The dataset encompasses experimental data related to the fabrication of PEMs using tanfloc as either a polyanion or a polycation, expanding the versatility of this amphoteric polymer in PEM coatings. Typically, PEMs are formed by combining a polycation and a polyanion with complementary ionic groups. However, the unique amphoteric nature of tanfloc allows for the creation of PEMs utilizing only one of its functional groups, leaving the other functional group available for imparting antibacterial activity.</p> <p>The dataset includes details on the assembly of tanfloc-containing PEMs employing various counter-polyelectrolytes, including three poly-anionic glycosaminoglycans with varying charge densities, as well as the polycations N,N,N-trimethyl chitosan and polyethylenimine. The layer-by-layer assembly of PEMs is monitored using in situ Fourier-transform surface plasmon resonance (FT-SPR), confirming stable layer-by-layer construction. Surface chemistry is assessed through X-ray photoelectron spectroscopy (XPS).</p> <p>Furthermore, this dataset provides insights into the biocompatibility of tanfloc-containing PEMs, demonstrating their support for mammalian cells. Most notably, the dataset includes extensive data on the antiadhesive and antibacterial properties of these coatings against common implant-associated pathogens, such as <em>Staphylococcus aureus</em> and <em>Pseudomonas aeruginosa</em>. The antibacterial effects observed are attributed to electrostatic interactions and the polyphenolic nature of tanfloc.</p>
Concentrations of total phenolics and condensed tannins and the number of galls combined in each sample
<p>Gall-forming insects induce various types of galls on their host plants by altering gene expression in host plant organs, and recent studies have been conducted for gene expression in galls. However, the evolutionary trajectories of gene expression patterns and the resulting phenotypes have not yet been studied using multiple related species. We investigated the speciation and the diversification process of galls induced by four closely-related aphid species (Hormaphidini) on a host plant species (<em>Hamamelis japonica</em>) by examining the phylogenetic congruence between the geographic divergences of aphids and the host plant, and by comparing their gene expression patterns and resulting phenotypes. Phylogenetic analysis of aphids and the host plant showed that geographic isolation among host plant populations has interrupted gene flow in aphids and accelerated the speciation process. The concentration of phenolics and the complexity of the internal structure of galls were correlated with the expression levels of genes for the biosynthesis of phenolics and morphogenesis, respectively. These results suggest that the expression levels of genes for the biosynthesis of phenolics and morphogenesis have evolutionarily increased in galls accelerated by the speciation process of aphids due to the distribution change of the host plant, leading to the related phenotypic evolution. Our study showed the evolutionary process of phenotypic traits in galls in the wild from both gene expression and actual phenotype levels.</p>
Environment and genotype influence on Populus tremuloides condensed tannin composition
<p>This dataset contains concentration and molecular structural information (mean degree of polymerization, procyanidin:prodelphinidin ratios, stereochemistry) describing condensed tannins in <em>Populus tremuloides</em> (aspen) tree foliage in different genotypes and in response to altered environmental conditions (warming, freeze damage, ozone exposure, elevated carbon dioxide, elevated soil nutrients, altered soil microbiome, mammal browsing, and insect herbivory).</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
Open the record for dataset details and reuse information.
Concentrations of total phenolics and condensed tannins and the number of galls combined in each sample
Open the record for dataset details and reuse information.
Data for: Fabrication and characterization of antibacterial coatings using an amphoteric condensed tannin,Tanfloc
Open the record for dataset details and reuse information.
Environment and genotype influence on Populus tremuloides condensed tannin composition
Open the record for dataset details and reuse information.
Fig. 1 in An overview on the role of plant-derived tannins for the treatment of lung cancer
Fig. 1. Molecular targets modulated by tannins in lung cancer. Tannins Abbreviations: CASU - casuarinin; EGCG - epigallocatechin-3-gallate; FPTF - fructus phyllanthi tannin fraction; GA – gallic acid; GERA - geraniin; GRA – granatin A; GRB – granatin B; GSPs - grape seed proanthocyanidins; GSPC - grape seed procyanidins; OEB - oenothein B; PAC – proanthocyanidin rich cranberry fraction; PARE – procyanidin rich extract from sorghum bran; PBOG - prodelphinidin B-2 3′-Ogallate; PCC – procyanidins from cinnamomi cortex; PCCC – procyanidin C1 from cinnamomi cortex; PRFR – proanthocyanidin rich fraction from red rice; TA - tannic acid; TT – total tannins. Abbreviations for molecules: AP-1 - Activator protein 1; Apaf-1 - Apoptotic protease activating factor 1; BAX - BCL2 Associated X; BCL2 - Bcell lymphoma 2; BCL-XL - B-cell lymphoma-extra large; CD31 - cluster of differentiation 31; CDK - cyclin dependent kinase; CDKN1A - cyclin-dependent kinase inhibitor; c-FLIP - FLICE-like inhibitory protein; Cip1/p21 - cyclin-dependent kinase inhibitor 1; COX-2 – cyclooxygenase-2; Cyt C - cytochrome C; E-Cad – E-cadherin; EMT – epithelial-to-mesenchymal transition; Fas - apoptosis antigen 1; FasL - Fas ligand; FN - fibronectin; GR – glutathione reductase; GSH – reduced glutathione; GST - glutathione S-transferase; 15-HETE - 15-hydroxyeicosatetraenoic acid; IGFBP-3 - insulin like factor binding protein 3; IGF-2R - insulin-like growth factor 2 receptor; Kip1/p27 - cyclin-dependent kinase inhibitor 1B; MAPK - mitogen-activated protein kinase; MDM2 - mouse double minute 2 homolog; mFasL - membrane-bound FasL; miR – microRNA; NANOG - transcriptional factor; N-cad - N-cadherin; NOX - NADPH oxidase; NF-kB - nuclear factor kappa-light-chainenhancer of activated B cells; NRF2 - nuclear factor erythroid 2 (NFE2)-related factor 2; NQO1 - NAD(P)H:quinone oxidoreductase; OCT-4 - octamer-binding transcription factor 4; PARP - poly-ADP ribose polymerase; PCNA - proliferating cell nuclear antigen; PGE2 - prostaglandin E2; 6-keto-PGF1α - 6-keto-prostaglandin F1α; PTEN - phosphatase and tensin homolog; PTGIS - prostacyclin synthase; pMDM2 – phospho mouse double minute 2 homolog; pAKT – phosphorylated protein kinase B; pERK1/2 – phosphorylated extracellular signal-regulated kinase 1/2; pJNK1/2 – phosphorylated c-Jun N-terminal kinase 1/2; pNF-kB - phosphorylated nuclear factor kappa-light-chain-enhancer of activated B cells; pPI3K – phosphorylated phosphatidylinositol 3-kinase; α-SMA – alpha-smooth muscle actin; pSmad2 – phosphorylated SMAD family member 2; pSmad3 – phosphorylated SMAD family member 3; p21/WAF1 - cyclin-dependent kinase inhibitor 1; p22phox - human neutrophil cytochrome b light chain; p47phox – neutrophil cytosol factor 1; pp38 – phosphorylated p38; Rb - retinoblastoma protein; sFasL - soluble FasL; Smac/ DIABLO - Second mitochondria-derived activator of caspase/direct inhibitor of apoptosis-binding protein with low pI; SNAIL1 - Zinc finger protein SNAI1; SOX2 - SRY (sex determining region Y)-box 2; pEGFR – phosphorylated epidermal growth factor receptor; TGF-βR1 - transforming growth factor beta receptor; UGT - uridine diphosphate glucuronosyl transferase; VIM - vimentin; VEGF - vascular endothelial growth factor; XIAP - X-linked inhibitor of apoptosis protein; ZO1 - Zonula occludens1. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
Fig. 2 in An overview on the role of plant-derived tannins for the treatment of lung cancer
Fig. 2. Schematic representation of the mechanism of action of tannins as apoptosis inducers, by targeting multiple cellular signal transduction pathways involved in cancer. Abbreviations: AA - arachidonic acid; Akt - protein kinase B; Axl - AXL receptor tyrosine kinase; BAX - BCL2 Associated X; BCL2 - B-cell lymphoma 2; BCL-XL - B-cell lymphoma-extra large; cAMP - adenosine 3′,5′-cyclic monophosphate; CASU - casuarinin; COX2 – cyclooxygenase 2; Cyt C - cytochrome c; EGCG - epigallocatechin-3-gallate; EGFR - epidermal growth factor receptor; EP receptor - E prostanoid receptor; FADD - Fas-associated protein with death domain; Fas - apoptosis antigen 1; FasL - Fas ligand; FPTF - fructus phyllanthi tannin fraction; GA – gallic acid; GERA - geraniin; GRA - granatin A; GRB - granatin B; GSP - grape seed proanthocyanidins; GSPC - grape seed procyanidins; 15-HETE - 15-Hydroxyeicosatetraenoic acid; IP receptor - prostacyclin receptor; 15-LOX-2 - 15-lipoxygenase-2; MAPK - mitogen-activated protein kinase; MMP - mitochondrial membrane potential; OEB - oenothein B; PAC – proanthocyandin-rich cranberry fraction; PARP - poly-ADP ribose polymerase; PBOG - prodelphinidin B-2 3′-O-gallate; PGE - prostaglandin E2; PGI - prostaglandin I2; PKA - protein kinase A; PI3K - 2 2 phosphatidylinositol 3-kinase; PLA2 - phospholipase A2; PTGIS - prostacyclin synthase; ROS - reactive oxygen species; TA – tannic acid; TAM receptors - receptor tyrosine kinases; Tyro3 - TYRO3 protein tyrosine kinase. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
Fig. 3 in Seed tannin composition of tropical plants
Fig. 3. Examples of the UV chromatograms (280 nm), quantification data and biological activities of the proanthocyanidin-rich samples. a) Lacistema aggregatum, b) Cnestidium rufescens, c) Platypodium elegans. Abbreviations: 3-CQA: 3-O-caffeoylquinic acid, 5-CQA: 5-O-caffeoylquinic acid, CAF: caffeic acid derivative, CAT: catechin, ECAT: epicatechin, G: galloyl group, GCAT: gallocatechin, PA: proanthocyanidin (in the info box: portion of proanthocyanidins), PC: procyanidin, 2PC: dimeric PC, PD: prodelphinidin, 3PD: trimeric PD, PT: mass spectrometric quantitation of selected polyphenolics, HT: portion of hydrolysable tannins, FC: total phenolics quantified using Folin-Ciocalteu assay, pH 10: portion of easily oxidized total phenolics, PPC: protein precipitation capacity reported in relation to the total phenolics.
Fig. 2 in Seed tannin composition of tropical plants
Fig. 2. Examples of the UV chromatograms (280 nm), quantification data and biological activities of the ellagitannin-rich samples. a) Combretum laxum, b) Eugenia coloradoensis, c) Myrcia splendens. Abbreviations: CAT: catechin, EA: ellagic acid, ET: ellagitannin, GlcA: glucuronic acid, PA: proanthocyanidin (in the info box: portion of proanthocyanidins), PC: procyanidin, PT: mass spectrometric quantitation of selected polyphenolics, HT: portion of hydrolysable tannins, FC: total phenolics quantified using Folin-Ciocalteu assay, pH 10: portion of easily oxidized total phenolics, PPC: protein precipitation capacity reported in relation to the total phenolics.
Fig. 1 in Seed tannin composition of tropical plants
Fig. 1. Examples of the UV chromatograms (280 nm), quantification data and biological activities of the gallic acid derivative-rich samples. a) Doliocarpus multiflorus, b) Anacardium excelsum, c) Canavalia campylocarpa. Abbreviations: 1GG: monogalloyl glucose, 2GG: digalloyl glucose, 3GG: trigalloyl glucose, 3GG (GT): gallotannintype 3GG, 4GG: tetragalloyl glucose, CAT: catechin, G: galloyl group, PT: mass spectrometric quantitation of total phenolics, HT: portion of hydrolysable tannins, PA: portion of proanthocyanidins, FC: total phenolics quantified using Folin-Ciocalteu assay, pH 10: portion of easily oxidized total phenolics, PPC: protein precipitation capacity reported in relation to the total phenolics.
Figure S2.13 in Seed tannin composition of tropical plants
Figure S2.13). Presumably due to the lower number of hydroxyl groups, these PAs were more hydrophobic than PCs and PDs – the hump of Psychotria PAs began to elute at ca. 4.0 min as opposed to ca. 2.0 min of PDs and ca. 3.0 min of PCs in other species. While fragmentation patterns characteristic to PAs appear in the mass spectra (retro-Diels-Alder fragmentation, heterocyclic ring fission, and quinone-methide fragmentation; Friedrich et al., 2000; Gu et al., 2003), coelution makes the assignation of the fragment ions to the correct corresponding molecular ions impossible. Based on our knowledge on the oxidative activities of phenolics, the high activities of these samples (see the following section) would indicate a presence of pyrogallol moieties (Kim et al, 2018, 2020; Vihakas et al., 2014). However, this would also require highly unusual PA structures, as this would mean that there would be no additional hydroxyl groups in 258 Da subunits, and for 274 Da subunits, there would only be one, likely at positions 3, 5 or 7. Alternatively, the high activity of Psychotria extracts was governed by compounds that were not detected or identified in this study, or by an unknown structure/activity relationship.
Tannin Specific Natural Extract for COVID-19 Infection
ClinicalTrials.gov study NCT04403646. IPD Sharing: UNDECIDED. Countries: 1. Publications: 4.
Oral Administration of Tannins and Flavonoids in Children With Acute Diarrhea
ClinicalTrials.gov study NCT03356327. IPD Sharing: NO. Countries: 1. Publications: 1.
Tannins discrimination
<p>Supplementary data</p>
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.