Chemical process to improve natural grapevine-cane extract effectivity against powdery mildew and grey mould

Autor: Tristan Richard, Toni El Khawand, David Taillis, Grégory Da Costa, Eric Pedrot, Stéphanie Cluzet, Alain Decendit, Josep Valls Fonayet

Publikováno v: OENO One, Vol 55, Iss 1 (2021)

Grapevine canes are vine growing byproducts studied for their antimicrobial activities. These properties are directly connected to the stilbene content; oligomeric stilbenes being the most active. In this study, we propose a chemical process, based o

Externí odkaz: https://doaj.org/article/841ecd511cc746aabb10b5a5ae7dc97f

Mammalian Arginase Inhibitory Activity of Methanolic Extracts and Isolated Compounds from Cyperus Species

Autor: Kamel Arraki, Perle Totoson, Alain Decendit, Andy Zedet, Justine Maroilley, Alain Badoc, Céline Demougeot, Corine Girard

Publikováno v: Molecules, Vol 26, Iss 6, p 1694 (2021)

Polyphenolic enriched extracts from two species of Cyperus, Cyperus glomeratus and Cyperus thunbergii, possess mammalian arginase inhibitory capacities, with the percentage inhibition ranging from 80% to 95% at 100 µg/mL and 40% to 64% at 10 µg/mL.

Externí odkaz: https://doaj.org/article/ef05099c5ca1429aa76f18079f61a546

Identification and quantification of stilbenes in some Tunisian red wines using UPLC-MS and HPLC-DAD

Autor: Kamel Arraki, Élodie Renouf, Pierre Waffo-Téguo, Jean-Michel Mérillon, Tristan Richard, Alain Decendit

Publikováno v: OENO One, Vol 51, Iss 3 (2017)

Seven Tunisian red wines mainly from the Mornag appellation were analyzed for resveratrol and analogues. The wines of each variety were evaporated, concentrated, and then subjected to fractionation and purification using XAD16 and DOWEX column chroma

Externí odkaz: https://doaj.org/article/2d646eefa7364495b74b9d38767b63c5

A dimeric stilbene extract produced by oxidative coupling of resveratrol active against Plasmopara viticola and Botrytis cinerea for vine treatments

Autor: David Taillis, Josep Valls Fonayet, Marie-Laure Iglesias, Eric Pedrot, Toni El Khawand, Julien Gabaston, Tristan Richard, Stéphanie Cluzet, Antonio Palos Pinto, Jean-Michel Mérillon, Alain Decendit

Publikováno v: OENO One. 54:157-164

Aim: Stilbenes are a group of polyphenols that contribute to the defense mechanisms of grapevine under stress conditions. The main active compounds are oligomeric stilbenes. The sourcing of such compounds is limited by plant raw material availability

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e33bf9dd8cde7e1dbfae03a1c65ff7fd
https://doi.org/10.20870/oeno-one.2020.54.1.2529

Mammalian Arginase Inhibitory Activity of Methanolic Extracts and Isolated Compounds from Cyperus Species

Autor: Arraki, Kamel, Totoson, Perle, Decendit, Alain, Zedet, Andy, Maroilley, Justine, Badoc, Alain, Demougeot, Céline, Girard, Corine

Publikováno v: Molecules
Molecules, MDPI, 2021, 26 (6), pp.1694. ⟨10.3390/molecules26061694⟩
Molecules, MDPI, 2021, 26 (6), ⟨10.3390/molecules26061694⟩
Molecules, Vol 26, Iss 1694, p 1694 (2021)
Volume 26
Issue 6

Polyphenolic enriched extracts from two species of Cyperus, Cyperus glomeratus and Cyperus thunbergii, possess mammalian arginase inhibitory capacities, with the percentage inhibition ranging from 80% to 95% at 100 µg/mL and 40% to 64% at 10 µg/mL.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid_dedup__::988e000a36d3263617de7630bcf0f74f
https://hal-univ-fcomte.archives-ouvertes.fr/hal-03409123