Encontrados 46 documentos, a visualizar página 1 de 5

Ordenado por Data

Cytotoxicity of Coprinopsis atramentaria extract, organic acids and their synth...

Heleno, Sandrina A.; Ferreira, Isabel C.F.R.; Calhelha, Ricardo C.; Esteves, Ana Paula; Martins, Anabela; Queiroz, Maria João R.P.

Coprinopsis atramentaria is a wild edible mushroom whose methanolic extract revealed a marked antioxidant activity; p-hydroxybenzoic (HA), p-coumaric (CoA) and cinnamic (CA) acids were identified in the extract. In the present work, the cytotoxicity of C. atramentaria extract, previously identified organic acids and their synthesized derivatives (methylated compounds and protected glucuronides) was evaluated. A...

Data: 2014   |   Origem: Biblioteca Digital do IPB

Gonoderma luicidium methanolic extract : chemical characterization in phenolic ...

Heleno, Sandrina A.; Tavares, Catarina; Vaz, Josiana A.; Almeida, Gabriela M.; Martins, Anabela; Queiroz, Maria João R. P.; Vasconcelos, M. Helena


A comparative study of chemical composition, antioxidant and antimicrobial prop...

Heleno, Sandrina A.; Stojković, Dejan; Barros, Lillian; Glamočlija, Jasmina; Soković, Marina; Martins, Anabela; Queiroz, Maria João R.P.

A comparative study on chemical composition (nutritional value, primary and secondary metabolites), antioxidant properties (scavenging activity, reducing power and inhibition of lipid peroxidation), and antimicrobial activity (antibacterial and demelanizing properties) of two samples of Morchella esculenta (morel) from different countries (Portugal and Serbia) was performed. This species was chosen for being on...

Data: 2013   |   Origem: Biblioteca Digital do IPB

Antimicrobial and demelanizing activity of Ganoderma lucidum extract, p-hydroxy...

Heleno, Sandrina A.; Ferreira, Isabel C.F.R.; Esteves, Ana P.; Ćirić, Ana; Glamočlija, Jasmina; Martins, Anabela; Soković, Marina

Mushroom extracts or isolated compounds may be useful in the search of new potent antimicrobial agents. Herein, it is described the synthesis of protected (acetylated) glucuronide derivatives of p-hydroxybenzoic and cinnamic acids, two compounds identified in the medicinal mushroom Ganoderma lucidum. Their antimicrobial and demelanizing activities were evaluated and compared to the parent acids and G. lucidum e...

Data: 2013   |   Origem: Biblioteca Digital do IPB

A comparative study of chemical composition of Morchella esculenta (L.) Pers. f...

Heleno, Sandrina A.; Stojković, Dejan; Barros, Lillian; Reis, Filipa S.; Glamočlija, Jasmina; Soković, Marina; Martins, Anabela

Mushrooms contain a huge diversity of biomolecules with bioactive properties that should be explored. Morchella esculenta (L.) Pers. (morel) is one of the most highly prized edible mushrooms in the world. In the present work a comparative study on the chemical composition (nutritional value, primary and secondary metabolites) of the two samples from two countries, Portugal (SP) and Serbia (SS), was performed. C...

Data: 2013   |   Origem: Biblioteca Digital do IPB

Antimicrobial activity of Ganoderma lucidum extract, p-hydroxybenzoic and cinna...

Heleno, Sandrina A.; Ferreira, Isabel C.F.R.; Esteves, Ana P.; Ćirić, Ana; Glamočlija, Jasmina; Martins, Anabela; Soković, Marina

Ganoderma lucidumis one of the most famous traditional medicinal mushrooms, being used as functional food and in preventive medicines [1 ]. p-Hydroxybenzoic and cinnamic acids were previously identified, by our research group, in wild G. lucidum from Northeast of Portugal [2].Many studies suggest that phenolic compounds are rapidly metabolized in the human organism being glucuronidation the most prevalent meta...

Data: 2013   |   Origem: Biblioteca Digital do IPB

Chemical characterization and antioxidant activity of phenolic, polysaccharidic...

Heleno, Sandrina A.; Barros, Lillian; Martins, Anabela; Queiroz, Maria João R.P.; Ferreira, Isabel C.F.R.

Wild mushrooms contain a huge diversity of biomolecules with nutritional (1] and/or medicinal properties (2] .Their consumption continues to increase due to their functional benefits and presence of bioactive compounds that can be found in phenolic, polysaccharidic and lipidic fractions. Phenolic compounds can act as reducing agents, free radical-scavengers, singlet oxygen quenchers or metal ion chelators, and ...

Data: 2013   |   Origem: Biblioteca Digital do IPB

Growth inhibitory activity of Coprinopsis atramentaria extract, phenolic acids...

Heleno, Sandrina A.; Ferreira, Isabel C.F.R.; Calhelha, Ricardo C.; Martins, Anabela; Esteves, Ana P.; Queiroz, Maria João R.P.

Mushrooms represent an important source of compounds with antitumor and immunostimulating properties. Our attention is being focused on the capacity of phenolic acids from mushrooms to miHb1t the growth of different tumor cell lines. Croprinopsis atramentaria (Bull.: Fr.) Redhead, Vilgalys & Moncalvo, is a wild edible mushroom previously characterized by us for its nutritional composition, and also showed a not...

Data: 2013   |   Origem: Biblioteca Digital do IPB

Chemical composition and bioactivity of wild samples of Morchella esculenta fro...

Heleno, Sandrina A.; Stojković, Dejan; Barros, Lillian; Glamočlija, Jasmina; Soković, Marina; Martins, Anabela; Queiroz, Maria João R.P.

Mushrooms contain a huge diversity of biomolecules with nutritional1 and/or bioactive properties.2 , 3 Morchella esculenta (L.) Pers. (morel) is one of the most widely appreciated wild edible mushrooms. Herein, a comparative study on chemical composition (nutritional value, primary and secondary metabolites), antioxidant properties (scavenging activity, reducing power and inhibiPEsttion of lipid peroxidation), ...

Data: 2013   |   Origem: Biblioteca Digital do IPB

Synthesis of acetylated glucuronide derivatives of p-hydroxybenzoic and cinnami...

Heleno, Sandrina A.; Ferreira, Isabel C.F.R.; Martins, Anabela; Esteves, Ana P.; Queiroz, Maria João R.P.

Dietary phenolic compounds are widely considered to contribute to health benefits in humans. However, little is known about their bioactive forms in vivo and the mechanisms by which they may contribute toward disease prevention. Moreover, many studies on the biological effects of phenolic compounds have ignored the question of their achievable concentrations in the circulation after ingestion as well as their m...

Data: 2013   |   Origem: Biblioteca Digital do IPB

46 Resultados

Texto Pesquisado

Refinar resultados

Autor











Data







Tipo de Documento



Recurso



Assunto















    Financiadores do RCAAP

Fundação para a Ciência e a Tecnologia Universidade do Minho   Governo Português Ministério da Educação e Ciência Programa Operacional da Sociedade do Conhecimento União Europeia