Results 91 to 100 of about 5,679 (207)

Fundamental Methods in Ellagitannin Synthesis

Natural Product Communications, 2017
This account describes methods for synthesizing natural ellagitannins. The ellagitannins, a class of polyphenols, has a wide variety of chemical structures and biological activities.
Hidetoshi Yamada, Tsukasa Hirokane, Kazutada Ikeuchi, Shinnosuke Wakamori   +3 more
doaj   +1 more source

Harnessing Natural Compounds in Psoriasis: Targeting Cellular Pathways for Effective Therapy

Phytotherapy Research, Volume 40, Issue 8, Page 4759-4791, August 2026.
Natural compounds act on key cellular pathways in psoriasis by suppressing keratinocyte hyperproliferation, modulating Th17/IL‐17‐mediated immune responses, and reducing oxidative stress. These multi‐target effects highlight their potential as safer adjunctive therapies alongside conventional treatments.
Hye Jin Lee, Yu Jin So, Il‐Joo Jo, Ji Yong Jang, Tae Han Yook, Jun Ho Lee, Sung Wook Kim, Kangwook Lee, Soo Jung Park, Gabsik Yang   +9 more
wiley   +1 more source

Ellagitannin Chemistry. Studies on the Stability and Reactivity of 2,4-HHDP-Containing Glucopyranose Systems

, 2016
The synthesis of a 2,4-HHDP containing glucopyranose ellagitannin model system has been achieved. Attempts to prepare a related target bearing a 1,6 bridge led instead to the discovery of a likely strain-driven tautomerization to cyclohexadienone ...
Ken S. Feldman (1470532), Yanze Liu (88871), Malliga R. Iyer (2362438)   +2 more
core   +1 more source

Antimicrobial Activities of Ellagitannins against Clostridiales perfringens, Escherichia coli, Lactobacillus plantarum and Staphylococcus aureus

Molecules, 2020
In this study, we tested the growth inhibition effect of 22 individual ellagitannins and of pentagalloylglucose on four bacterial species, i.e., Clostridiales perfringens, Escherichia coli, Lactobacillus plantarum and Staphylococcus aureus.
Elina Puljula, Gemma Walton, Martin J. Woodward, Maarit Karonen   +3 more
doaj   +1 more source

Compositional and sensory characterization of grape proanthocyanidins and oak wood ellagitannin

, 2015
Aimed at increasing our knowledge on the astringency of sensory-active non-volatiles compounds migrating principally from grapes and from oak wood into the wine, grape extracts and an aqueous ethanolic extract from oak wood chips were used for their key ...
Pierre-Louis Teissedre, TEISSEDRE, Pierre Louis, Le Floch, Alexandre, Michael Jourdes, PECHAMAT, Laurent, Kleopatra Chira, LE FLOCH, Alexandra, Liming Zeng, ZENG, Liming, CHIRA, Kleopatra, Alexandra Le Floch, JOURDES, Michael, Laurent Péchamat   +12 more
core   +1 more source

Dimeric ellagitannins in plants of melastomataceae.

Chemical and Pharmaceutical Bulletin, 1986
Six novel ellagitannins, four of which are dimers mutually correlated in their structures, have been isolated from Tibouchina semidecandra, and Medinilla magnifica. Their structures were elucidated based on spectral and chemical evidence.
Yoshida, Takashi, Ikeda, Yoshitaka, Ohbayashi, Hideyuki, Ishihara, Koukichi, Ohwashi, Wakayo, Shingu, Tetsuro, Okuda, Takuo   +6 more
openaire   +2 more sources

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

, 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), Kiran Sahasrabudhe (2718388)   +1 more
core   +1 more source

Effects of ellagitannin rich berries on blood lipid profiles, gut microbiota and metabolism of phenolic compounds in metabolic syndrome

, 2015
Scope: Ellagitannins are polyphenols abundant in strawberries, raspberries and cloudberries. The effects of a mixture of these berries were studied in subjects with features of metabolic syndrome.
Oksman-Caldentey, Kirsi-Marja; id_orcid, Seppänen-Laakso, Tuulikki, Nohynek, Liisa; id_orcid, Törrönen, Riitta, Tómas-Barberán, Francisco A., Leppänen, Tiina, Moilanen, Eeva, Puupponen-Pimiä, Riitta, Maukonen, Johanna, Kankainen, Matti, Espín, Juan C., Poutanen, Kaisa, Aura, Anna-Marja; id_orcid, Kolehmainen, Marjukka   +13 more
core   +4 more sources

Effects on Nitric Oxide Production of Urolithins, Gut-Derived Ellagitannin Metabolites, in Human Aortic Endothelial Cells

Molecules, 2016
The consumption of foodstuffs yielding circulating compounds able to maintain endothelial function by improving nitric oxide (NO) bioavailability can be considered as an effective strategy for cardiovascular disease prevention.
Valentina Spigoni, Pedro Mena, Monia Cito, Federica Fantuzzi, Riccardo C. Bonadonna, Furio Brighenti, Alessandra Dei Cas, Daniele Del Rio   +7 more
doaj   +1 more source

Addition of wood chips in red wine during and after alcoholic fermentation: differences in color parameters, phenolic content and volatile composition

OENO One, 2016
The effect of the time of wood chip addition on phenolic content, color parameters and volatile composition of a red wine made by a native Greek variety (Agiorgitiko) was evaluated.
Maria Kyraleou, Eleni Tzanakouli, Yorgos Kotseridis, Kleopatra Chira, Ioannis Ligas, Stamatina Kallithraka, Pierre-Louis Teissedre   +6 more
doaj   +1 more source