Results 11 to 20 of about 11,797 (218)

Flavonoides de trece especies del género Bursera con potencial antioxidante.

open access: yesPolibotánica, 2017
Se evaluó preliminarmente el potencial antioxidante de los flavonoides presentes en las hojas de trece especies del género Bursera, procedentes de los Estados de Puebla y Guerrero, México.
Patricia Guevara Fefer   +5 more
doaj   +5 more sources

Entdeckung neuer bakterieller Chalconisomerasen durch eine Sequenz‐Struktur‐Funktions‐Evolutions‐Strategie für die enzymatische Synthese von (S)‐Flavanonen

open access: yesAngewandte Chemie, Volume 133, Issue 31, Page 17011-17016, July 26, 2021., 2021
Neue bakterielle Chalconisomerasen und deren Varianten wurden durch eine Sequenz‐Struktur‐Funktions‐Evolutions (SSFE)‐Strategie identifiziert. Diese sind in der Lage, Chalcone in Flavanone mit breitem Substratspektrum und strikter (S)‐Stereopräferenz zu überführen, was eine biokatalytische Route zu (S)‐Flavanonen eröffnet. Abstract Die Chalconisomerase
Hannes Meinert   +10 more
wiley   +1 more source

Photochemistry of Flavonoids [PDF]

open access: yesMolecules, 2010
Flavonoids and their photochemical transformations play an important role in biological processes in nature. Synthetic photochemistry allows access to molecules that cannot be obtained via more conventional methods. This review covers all published synthetic photochemical transformations of the different classes of flavonoids. It is first comprehensive
Jan H. Van der Westhuizen   +3 more
openaire   +3 more sources

Photoangeregte Anionen in organischen Reaktionen

open access: yesAngewandte Chemie, Volume 133, Issue 12, Page 6338-6363, March 15, 2021., 2021
Photoangeregte Anionen wirken stark reduzierend und können als Katalysatoren oder als Reaktanten eingesetzt werden. In Gegenwart von Basen verschiebt sich die Absorption durch Deprotonierung im Vergleich zur neutralen Spezies bathochrom. Daher ist häufig eine Anregung mit sichtbarem Licht möglich.
Matthias Schmalzbauer   +2 more
wiley   +1 more source

Flavonoids and Asthma [PDF]

open access: yesNutrients, 2013
Asthma is a chronic disease, characterized by airway inflammation, airflow limitation, hyper-reactivity and airway remodeling. It is believed that asthma is caused by the interaction between genetic and environmental factors. The prevalence of allergic diseases, including asthma, has increased worldwide during the past two decades. Although the precise
Tanaka, Toshio, Takahashi, Ryo
openaire   +2 more sources

ANÁLISE DE FLAVONOIDES TOTAIS PRESENTES EM ALGUMAS FRUTAS E HORTALIÇAS CONVENCIONAIS E ORGÂNICAS MAIS CONSUMIDAS NA REGIÃO SUL DO BRASIL

open access: yesDemetra, 2017
Os flavonoides existentes na natureza estão relacionados com grande variedade de atividades biológicas, como ação anti-inflamatória e antioxidante, apresentando efeitos benéficos à saúde.
Patrícia do Rocio Smolinski Savi   +4 more
doaj   +1 more source

Procedimientos actuales para la extracción y purificación de flavonoides cítricos [PDF]

open access: yes, 2016
En la industria alimenticia, los agentes microbicidas son usados para preservar la calidad y seguridad de los alimentos procesados. Los flavonoides encontrados en extractos cítricos han mostrado capacidad de inhibición del crecimiento celular de un gran ...
Andrés Alejandro Damián-Reyna   +8 more
core   +1 more source

Flavonoids and the CNS [PDF]

open access: yesMolecules, 2011
Flavonoids are present in almost all terrestrial plants, where they provide UV-protection and colour. Flavonoids have a fused ring system consisting of an aromatic ring and a benzopyran ring with a phenyl substituent. The flavonoids can be divided into several classes depending on their structure. Flavonoids are present in food and medicinal plants and
Jäger, Anna Katharina, Saaby, Lasse
openaire   +4 more sources

Nuevos flavonoides fluorados como potenciales agentes farmacológicos. [PDF]

open access: yes, 2021
La presente memoria recoge la puesta a punto de una metodología altamente eficiente, dirigida a la obtención de fluoroflavanos, a partir de las correspondientes fluoroflavanonas mediante un proceso de hidrogenación catalizado por paladio. Este trabajo
Morán Suárez, Francisco José
core  

Quantificação de metabólitos secundários e avaliação da atividade antimicrobiana e antioxidante de algumas plantas selecionadas do Cerrado de Mato Grosso

open access: yesRevista Brasileira de Plantas Medicinais, 2015
RESUMO Extratos etanólicos de Luehea paniculata, Anadenanthera colubrina, Cariniana rubra, Hancornia speciosa, Qualea grandiflora, Kielmeyera coriaceae e Palicourea rigida, coletadas no Cerrado de Mato Grosso foram submetidos à análise fitoquímica ...
G.A. LIMA NETO   +6 more
doaj   +3 more sources

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