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Perspectives on Tannins

open access: yesBiomolecules, 2021
Tannins are a family of versatile, natural phenolic biomolecules whose main role is to protect plants against insects and fungi [...]
Andrzej Szczurek
doaj   +1 more source

Biological Function of Plant Tannin and Its Application in Animal Health

open access: yesFrontiers in Veterinary Science, 2022
Plant tannins are widely found in plants and can be divided into hydrolyzed tannins and condensed tannins. In recent years, researchers have become more and more interested in using tannin-rich plants and plant extracts in ruminant diets to improve the ...
Zhenkai Tong   +3 more
doaj   +1 more source

Tannin in Ruminant Nutrition: Review

open access: yesMolecules, 2022
Tannins are polyphenols characterized by different molecular weights that plants are able to synthetize during their secondary metabolism. Macromolecules (proteins, structural carbohydrates and starch) can link tannins and their digestion can decrease ...
Maghsoud Besharati   +7 more
doaj   +1 more source

Changes in oak (Quercus robur) photosynthesis after winter moth (Operophtera brumata) herbivory are not explained by changes in chemical or structural leaf traits [PDF]

open access: yes, 2020
Insect herbivores have the potential to change both physical and chemical traits of their host plant. Although the impacts of herbivores on their hosts have been widely studied, experiments assessing changes in multiple leaf traits or functions ...
Gripenberg, Sofia   +5 more
core   +1 more source

Investigation of Tannins Transformation in Sanguisorbae Radix Over Carbonizing by Stir-Frying

open access: yesFrontiers in Molecular Biosciences, 2022
Carbonizing by stir-frying (CSF) is the most common technology in botanical folk medicines to enhance the convergence, hemostasis, and antidiarrheal effects.
Wei Gu   +17 more
doaj   +1 more source

Characterization of Natural and Alkaline-Oxidized Proanthocyanidins in Plant Extracts by Ultrahigh-Resolution UHPLC-MS/MS

open access: yesMolecules, 2021
In this study, we analyzed the proanthocyanidin (PA) composition of 55 plant extracts before and after alkaline oxidation by ultrahigh-resolution UHPLC-MS/MS.
Maarit Karonen   +3 more
doaj   +1 more source

Acid Stable Yeast Cell-Associated Tannase with High Capability in Gallated Catechin Biotransformation

open access: yesMicroorganisms, 2021
Previously, nine tannin-tolerant and tannase-producing yeasts were isolated from Miang; all produced cell-associated tannase (CAT) during growth in tannin substrate.
Nalapat Leangnim   +4 more
doaj   +1 more source

Antiviral effect of polyphenol rich plant extracts on herpes simplex virus type 1

open access: yesFood Science and Human Wellness, 2018
Evaluation of the anti-herpetic activity of 25 Egyptian plants extracts was investigated in vitro in this study. The antiviral activity against Herpes Simplex Virus type 1 (HSV-1) was done on Vero cell lines by cell viability.
Sayed A. El-Toumy   +5 more
doaj   +1 more source

Tannins of Constant Structure in Medicinal and Food Plants—Hydrolyzable Tannins and Polyphenols Related to Tannins

open access: yesMolecules, 2011
In addition to the commonly used classification as hydrolyzable tannins and condensed tannins, tannins can also be categorized into two other types: polyphenols of constant chemical structure (Type A) and polyphenols of variable composition (Type B ...
Takuo Okuda, Hideyuki Ito
doaj   +1 more source

Phytochemical, anti-inflammatory, anti-ulcerogenic and hypoglycemic activities of Periploca angustifolia L extracts in rats

open access: yesClinical Phytoscience, 2018
Background In traditional North Africa, medicine decoctions of the leaves of Periploca angustifolia are used to treat diarrhea, inflammation, ulcers, edema and diabetes.
Khaled Abo-EL-Sooud   +4 more
doaj   +1 more source

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