Results 31 to 40 of about 2,466 (220)

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

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

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

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

Exome sequencing of a colorectal cancer family reveals shared mutation pattern and predisposition circuitry along tumor pathways [PDF]

open access: yes, 2015
The molecular basis of cancer and cancer multiple phenotypes are not yet fully understood. Next Generation Sequencing promises new insight into the role of genetic interactions in shaping the complexity of cancer.
Ahuja   +76 more
core   +2 more sources

Tannins and Their Complex Interaction with Different Organic Nitrogen Compounds and Enzymes : Old Paradigms versus Recent Advances [PDF]

open access: yes, 2017
Tannins, an abundant group of plant secondary compounds, raise interest in different fields of science, owing to their unique chemical characteristics. In chemical ecology, tannins play a crucial role in plant defense against pathogens, herbivores, and ...
Adamczyk, Bartosz   +4 more
core   +1 more source

Fractionation and Characterization of Tannin Acyl Hydrolase from Aspergillus niger

open access: yesHayati Journal of Biosciences, 2009
We previously produced tannin acyl hydrolase (tannase) from Aspergillus niger isolated from cacao pod. In the present study the enzyme was subjected to fractionation by ammonium sulphate followed by dialysis process.
YUNITA ARIAN SANI ANWAR   +2 more
doaj   +3 more sources

Concentrações de fenóis totais nas folhas do cafeeiro durante desenvolvimento dos frutos [PDF]

open access: yes, 2008
Vegetables have a natural defense against external factors synthesizing phenolic compounds, which depends on the maturity stage and on the climate. Total phenol grades were extracted from mature and young coffee leaves and were analyzed in relation to ...
FAVARIN, José Laércio   +3 more
core   +3 more sources

Host Cell Poly(ADP-ribose) glycohydrolase Is Crucial for Trypanosoma cruzi Infection Cycle [PDF]

open access: yes, 2013
Trypanosoma cruzi, etiological agent of Chagas´ disease, has a complex life cycle which involves the invasion of mammalian host cells, differentiation and intracellular replication.
Alonso, Guillermo Daniel   +5 more
core   +3 more sources

Separation, Identification, and Bioactivities of the Main Gallotannins of Red Sword Bean (Canavalia gladiata) Coats

open access: yesFrontiers in Chemistry, 2018
The red sword bean (Canavalia gladiata) is an underutilized edible bean cultivated in China. It was previously found to have the highest content of antioxidant polyphenols among 42 edible beans, mainly gallic acid, and gallotannins in its red bean coat ...
Ren-You Gan   +7 more
doaj   +1 more source

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