Results 41 to 50 of about 2,577 (170)

Avaliação da inflamabilidade de espécies nativas do cerrado

Biotemas, 2020
Na ocorrência de incêndios florestais, a propagação se deve principalmente às características das folhas. De certa forma, as folhas funcionam como potencializador ou retardador da propagação de incêndios, já que as que possuem baixa inflamabilidade podem
Marcileia Dias de Oliveira, Josué Luiz Marinho Junior, Angela Helena Silva Mendes Stival, Bárbara Gomes Ferreira, Francisca de Cássia Silva da Silva, Marcos Vinícius Giongo Alves   +5 more
doaj   +1 more source

Cromatografando em coluna com resina de almécega: um projeto para química orgânica experimental Column chromatography with almécega resin: a project for experimental organic chemistry

Química Nova, 2007
The use of natural products to demonstrate the silica gel column chromatography technique is proposed in the present article. It describes the separation of the triterpenes alpha- and beta-amirin from the diol breine and maniladiol, obtained from ...
Gerardo Magela Vieira Júnior, Adonias Almeida Carvalho, Wellington de Abreu Gonzaga, Mariana H. Chaves   +3 more
doaj   +1 more source

Active Essential Oils and Their Components in Use against Neglected Diseases and Arboviruses

Oxidative Medicine and Cellular Longevity, Volume 2019, Issue 1, 2019., 2019
The term neglected diseases refers to a group of infections caused by various classes of pathogens, including protozoa, viruses, bacteria, and helminths, most often affecting impoverished populations without adequate sanitation living in close contact with infectious vectors and domestic animals.
Emanuela Coutinho Luna, Isadora Silva Luna, Luciana Scotti, Alex France M. Monteiro, Marcus Tullius Scotti, Ricardo Olímpio de Moura, Rodrigo Santos Aquino de Araújo, Kadja Luana Chagas Monteiro, Thiago Mendonça de Aquino, Frederico Fávaro Ribeiro, Francisco Jaime Bezerra Mendonça Junior, Ryoji Nagai   +11 more
wiley   +1 more source

CARACTERIZAÇÃO MORFOLÓGICA DE FRUTOS E EXTRAÇÃO DE ÓLEO DA RESINA DE PROTIUM HEPTAPHYLLUM (AUBL.) MARCHAND

, 2021
Isabele Pereira de Sousa, Vitor Benjamin dos Reis Nobre, L. Pereira, Maria Fernanda Vieira Martins, C. Pereira, Khétrin Silva Maciel, Tácia Costa Veloso   +6 more
semanticscholar   +2 more sources

Forest Structure and the Species Composition of the Parque Estadual Mata Atlântica, Located in Goiás State, Brazil

International Journal of Ecology, Volume 2018, Issue 1, 2018., 2018
The Parque Estadual Mata Atlântica (PEMA), Goiás state, Brazil, is an Atlantic Forest reserve which has not been studied yet. The aims were to investigate plant biodiversity and characterize the flora to support the management plan. We adopt the point‐centered quarter method to inventory the tree‐shrub and lianas with the diameter at breast height more
Ismael Martins Pereira, Jovan Martins Rios, Vagner Santiago do Vale, Vera Lúcia Gomes-Klein, Ademilson Coneglian, Ednaldo Cândido Rocha, L. M. Chu   +6 more
wiley   +1 more source

Soil Influences on Tree Species Distribution in a Rupestrian Cerrado Area

Floresta e Ambiente, 2018
This study aimed to analyze relations between the distribution of tree species and variations in soil texture, fertility and organic matter levels in a rupestrian cerrado area located in Diamantina-MG.
Daniel Dantas, Maria José Souza, Arthur Vieira, Marcio Oliveira, Israel Pereira, Evandro Machado, Claudio Marcio Souza, Wellington Rocha   +7 more
doaj   +1 more source

What Factors Guide the Selection of Medicinal Plants in a Local Pharmacopoeia? A Case Study in a Rural Community from a Historically Transformed Atlantic Forest Landscape

Evidence-Based Complementary and Alternative Medicine, Volume 2018, Issue 1, 2018., 2018
The criteria that local people use for selecting medicinal plants have been a recurrent topic in pharmacology and ethnobotany. Two of the current hypotheses regarding this phenomenon, ecological apparency and diversification, attempt to explain the inclusion of “apparent” and “non‐apparent” and native and exotic taxa, respectively, in local ...
Taline Cristina da Silva, Josilene Marinho da Silva, Marcelo Alves Ramos, Victor Kuete   +3 more
wiley   +1 more source

Understanding phenology and forest meteorology dynamics in a South American pharmacological tree [PDF]

Brazilian Journal of Biology
Protium heptaphyllum (Burseraceae) is a native species widely studied for its secondary metabolites, yet with limited records regarding its ecology and conservation.
A. S. M. Freire, K. P. T. Chagas, F. M. F. Lucas, F. A. Vieira   +3 more
doaj   +1 more source

Chemical composition and acaricidal activity of the leaf and fruit essential oils of Protium heptaphyllum (Aubl.) Marchand (Burseraceae) Composição química e atividade acaricida do óleo essencial das folhas e frutos de Protium heptaphyllum (Aubl.) Marchand (Burseraceae)

Acta Amazonica, 2007
Essential oils from leaves and fruits of Protiumheptaphyllum collected in Tamandaré beach Pernambuco/Brazil were analysed by GC/MS and tested for toxicity and repellent effect against the two spotted spider mite (Tetranychus urticae).
Wendel José Teles Pontes, José Cândido Guerra de Oliveira, Cláudio Augusto Gomes da Câmara, Adelmo C. H. R. Lopes, Manoel Guedes Correia Gondim Júnior, José Vargas de Oliveira, Reginaldo Barros, Manfred Oswald Erwin Schwartz   +7 more
doaj   +1 more source

Inalação do óleo essencial de Protium heptaphyllum (Aubl.) Marchand (BREU-BRANCO) como analgésico e ansiolítico na fibromialgia. Relato de casos

Brazilian Journal Of Pain
BACKGROUND AND OBJECTIVES : Fibromyalgia (FM) refers to a chronic pain condition with a multifactorial etiology, which negatively impacts the lives of its sufferers and is often refractory to conventional treatment.
Tauany Milan Ribeiro-Lacerda, L. Otutumi, Cristiane Mengue Feniman Moritz, D. D. C. F. Boleta-Ceranto, Ezilda Jacomassi   +4 more
semanticscholar   +1 more source