Results 41 to 50 of about 45,942 (239)

Optimization of Deep Eutectic Solvent Extraction of Phenolic Acids and Tannins from Alchemilla vulgaris L.

open access: yesPlants, 2022
Alchemilla vulgaris L. is a good source of antioxidant components with an emphasis on phenolic acids and tannins. In this study, gallic acid, ellagic acid, and hydrolyzable tannins (HT) were extracted from this plant with different deep eutectic solvents
Martina Jakovljević Kovač   +3 more
doaj   +1 more source

Chemical Composition, Antioxidant Activity, and Sensory Characterization of Commercial Pomegranate Juices

open access: yesAntioxidants, 2021
We undertook a qualitative and quantitative assessment of the bioactive compounds, volatile substances, sensory profile, and antioxidant activity of eight different commercial pomegranate juices (PJs) differing by cultivation area, processing (from ...
Sonia Esposto   +8 more
doaj   +1 more source

Microwave-ultrasound hybrid technology assisted extraction of pigments with antioxidant potential from red corn

open access: yesApplied Food Research, 2023
Current trends in the use of new pigments of natural origin have led to the investigation of novel technologies for obtaining them. The objectives of this study were to evaluate the extraction process by microwave (MAE) and ultrasound (UAE) assisted ...
J.D. García-Ortíz   +5 more
doaj   +1 more source

New Hydrolyzable Tannin with Potent Antioxidant and α-Glucosidase Inhibitory Activity from Black Tea Produced from Camellia taliensis

open access: yesFoods, 2023
Camellia taliensis (W. W. Smith) Melchior, belonging to the genus Camellia sect. Thea., is mainly distributed from northern Myanmar to western and southwestern Yunnan province of China, and its leaves have been used to make various teas by the locals of ...
Min Chen   +7 more
doaj   +1 more source

Hydrolyzable and condensed tannins resistance in Clostridium perfringens

open access: yesAnaerobe, 2015
Tannins added in the diet are being used to improve nutrition and health in farm animals as an alternative to antibiotic growth promoters and to control enteric clostridial diseases. However, the capacity of Clostridium perfringens to develop resistance under the selective pressure of tannins is unknown. The purpose of this study was to determine if C. 
Redondo, Leandro Martin   +4 more
openaire   +3 more sources

In Vitro Anti-HIV-1 Reverse Transcriptase and Integrase Properties of Punica granatum L. Leaves, Bark, and Peel Extracts and Their Main Compounds

open access: yesPlants, 2021
In a search for natural compounds with anti-HIV-1 activity, we studied the effect of the ethanolic extract obtained from leaves, bark, and peels of Punica granatum L.
Cinzia Sanna   +8 more
doaj   +1 more source

Elucidation and reconstitution of hydrolyzable tannin biosynthesis

open access: yesPlant Biotechnology
Hydrolyzable tannins (HTs) are a class of polyphenols produced mostly in core eudicot plants. They accumulate in various plant tissues and are considered to function as defense compounds that protect against herbivory, infections, and toxic metals (specifically aluminum ions).
Tahara, Ko   +2 more
openaire   +4 more sources

Salivary proline-rich protein may reduce tannin-iron chelation: a systematic narrative review

open access: yesNutrition & Metabolism, 2017
Background Tannins are often cited for antinutritional effects, including chelation of non-heme iron. Despite this, studies exploring non-heme iron bioavailability inhibition with long-term consumption have reported mixed results.
Nicole M. Delimont   +3 more
doaj   +1 more source

VEGETABLE TANNINS, RUMINAL MICROBIOTA AND RUMINANT METABOLISM INTERACTION

open access: yesTropical and Subtropical Agroecosystems, 2021
Background. Tannins, as polyphenolic secondary metabolites of plants, are attributed both beneficial and adverse functions when they are consumed by animals, effects that depend on the chemical structure and the concentration used.
Bernardino Espinoza-Velasco   +1 more
doaj   +1 more source

The antimicrobial capacity of Cistus salviifolius and Punica granatum plant extracts against clinical pathogens is related to their polyphenolic composition

open access: yesScientific Reports, 2021
Antimicrobial resistance poses a serious threat to human health worldwide. Plant compounds may help to overcome antibiotic resistance due to their potential resistance modifying capacity.
Francisco Javier Álvarez-Martínez   +4 more
doaj   +1 more source

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