Results 31 to 40 of about 1,342 (208)

Gallotannin Isolated from Pericarp of Water Caltrop Ameliorates High-Fat Diet-Induced Nonalcoholic Fatty Liver Disease in Mice [PDF]

open access: yes, 2023
Nonalcoholic fatty liver disease (NAFLD) is a worldwide prevalent chronic liver disease characterized by hepatic steatosis. Water caltrop, the fruit of Trapa natan, is widely cultivated as an edible vegetable in Asian countries.
Tunyu Jian   +17 more
core   +1 more source

Efflux-pump inhibitory activity of a gallotannin from Terminalia chebula fruit against multidrug-resistant uropathogenic Escherichia coli [PDF]

open access: yes, 2014
This study was carried out to evaluate the possible efflux-pump inhibitory activity of a gallotannin 1,2,6-tri-O-galloyl-β-d-glucopyranose isolated from Terminalia chebula fruit against multidrug-resistant (MDR) uropathogenic Escherichia coli ...
Anwesa Bag (534442)   +1 more
core   +1 more source

Enhancement of biomimetic enzymatic mineralization of gellan gum polysaccharide hydrogels by plant-derived gallotannins [PDF]

open access: yes, 2020
Mineralization of hydrogel biomaterials with calcium phosphate (CaP) is considered advantageous for bone regeneration. Mineralization can be both induced by the enzyme alkaline phosphatase (ALP) and promoted by calcium-binding biomolecules, such as plant-
Vanhaecke, Frank   +39 more
core   +1 more source

Gallotannin from Bouea macrophylla Seed Extract Suppresses Cancer Stem-like Cells and Radiosensitizes Head and Neck Cancer [PDF]

open access: yes, 2021
Cancer stem cells (CSCs) play a critical role in radiation resistance and recurrence. Thus, drugs targeting CSCs can be combined with radiotherapy to improve its antitumor efficacy.
Damrongsak Tippanya   +4 more
core   +1 more source

The Ups and Downs of Tannins as Inhibitors of Poly(ADP-Ribose)glycohydrolase

open access: yesMolecules, 2011
DNA damage to cells activates nuclear poly(ADP-ribose)polymerases (PARPs) and the poly(ADP-ribose) (PAR) synthesized is rapidly cleaved into ADP-ribose (ADPR) by PAR glycohydrolase (PARG) action.
Felix R. Althaus   +2 more
doaj   +1 more source

The Oxygen Consumption Kinetics of Commercial Oenological Tannins in Model Wine Solution and Chianti Red Wine

open access: yesMolecules, 2020
One property of oenological tannins, oxygen reactivity, is commonly exploited in winemaking. The reactivity is mediated by the presence of catalysts (i.e., transition metals and sulfur dioxide) and protects wine against oxidation.
Jelena Jeremic   +4 more
doaj   +1 more source

Stability of Principal Hydrolysable Tannins from Trapa taiwanensis Hulls

open access: yesMolecules, 2019
The fruit and hulls of the water caltrop (Trapa taiwanensis Nakai) are used as hepatoprotective herbal tea ingredients in Taiwan. The stability of hydrolysable tannins in herbal drinks has rarely been reported.
Ching-Chiung Wang   +3 more
doaj   +1 more source

The Structural Changes in the Membranes of Staphylococcus aureus Caused by Hydrolysable Tannins Witness Their Antibacterial Activity

open access: yesMembranes, 2022
Polyphenols, including tannins, are phytochemicals with pronounced antimicrobial properties. We studied the activity of two hydrolysable tannins, (i) gallotannin—1,2,3,4,5-penta-O-galloyl-β-D-glucose (PGG) and (ii) ellagitannin—1,2-di-O-galloyl-4,6 ...
Ewa Olchowik-Grabarek   +7 more
doaj   +1 more source

Mango (Mangifera indica L.) Polyphenols: Anti-Inflammatory Intestinal Microbial Health Benefits, and Associated Mechanisms of Actions

open access: yesMolecules, 2021
Mango is rich in polyphenols including gallotannins and gallic acid, among others. The bioavailability of mango polyphenols, especially polymeric gallotannins, is largely dependent on the intestinal microbiota, where the generation of absorbable ...
Hyemee Kim   +6 more
doaj   +1 more source

Ellagitannin Chemistry. Syntheses of Tellimagrandin II and a Dehydrodigalloyl Ether-Containing Dimeric Gallotannin Analogue of Coriariin A [PDF]

open access: yes, 2016
The first chemical synthesis of the naturally occurring ellagitannin tellimagrandin II is reported. Key steps of the synthesis include the atropselective oxidative coupling of suitably protected galloyl rings at the O(4) and O(6) positions of a ...
Ken S. Feldman (1470532)   +1 more
core   +1 more source

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