Results: 5

Dyslipidemic effect of aqueous and ethanolic extracts of raw and roasted xoconostle (Opuntia joconostle) peel

The aim of the present study was to assess the impacts of roasting and the type of extraction solvent (ethanol or water) on the hypolipidemic act ivity of xoconostle fruit peel extracts in a tyloxapol - induced model of hyperlipidemia. Water and ethanol extracts from raw and roasted ...

L-DOPA extradiol dioxigenase de amanita muscaria: revisão da sequência codificadora, expressão heteróloga, caracterização funcional e contextualização filogenética

Extradiol dioxigenases são enzimas que catalisam a clivagem oxidativa de ligações C-C entre grupos hidroxila fenólicos adjacentes utilizando catecóis como substratos. Esta classe de enzimas é bem caracterizada em bactérias, onde catalisam a degradação de compostos aromáticos. Na maioria das pla...

Chemistry Inspired by the Colors of Fruits, Flowers and Wine

An. acad. bras. ciênc; 90 (1,supl.1), 2018
ABSTRACT An overview is provided of the status of research at the frontiers of investigation of the chemistry and photochemistry of two classes of natural plant pigments, the anthocyanins and the betalains, as well as of the pyranoanthocyanin pigments formed from anthocyanins during the maturation of red...

Production of pigments in Alternanthera sessilis calli mediated by plant growth regulators and light

Acta sci., Biol. sci; 39 (3), 2017
Among the compounds produced by plants, pigments such as betalains have received attention from both food and pharmaceuticals industries. The Alternanthera sessilis species produces these pigments, though in small quantities, and so it is necessary to increase production. Thus, many studies use elicitors...

Mecanismos moleculares da interação entre betalaínas cumarínicas fluorescentes e células de glioma humano

Moléculas orgânicas fluorescentes são uma importante ferramenta para biologia celular. Compostos ideais para esta aplicação devem ter alto brilho (produto do coeficiente de atenuação molar e do rendimento quântico de fluorescência), ser fotoestáveis e internalizáveis, não comprometer a viabil...