Results 31 to 40 of about 844 (172)

A theoretical-experimental proposal, in teaching sequences about intermolecular interactions on teaching chemistry using varations of the test of adulteration in gasline and urucum dyes [PDF]

Investigações em Ensino de Ciências, 2012
This paper reports presents the results of a research developed with students of the high school in the Dourados, Mato Grosso do Sul, with the objective of proposing a theoretical-experimental teaching sequences, potentially significant, approaching the ...
Ademir de Souza Pereira, Dario Xavier Pires   +1 more
doaj  

Hydroalcoholic Extract and Ethyl Acetate Fraction of Bixa orellana Leaves Decrease the Inflammatory Response to Mycobacterium abscessus Subsp. massiliense

Evidence-Based Complementary and Alternative Medicine, Volume 2018, Issue 1, 2018., 2018
The incidence of infections caused by rapidly growing mycobacteria (RGM), especially Mycobacterium abscessus subsp. massiliense (Mabs), is increasing worldwide. Severe infections are associated with abscess formation and strong inflammatory response.
José Lima Viana, Adrielle Zagmignan, Luís Felipe Lima Lobato, Afonso Gomes Abreu Jr., Luís Cláudio Nascimento da Silva, Joicy Cortez de Sá, Cristina de Andrade Monteiro, João Henrique Ghilardi Lago, Letícia Machado Gonçalves, Rafael Cardoso Carvalho, Lídio Gonçalves Lima Neto, Eduardo Martins de Sousa, Antonio Vassallo   +12 more
wiley   +1 more source

MICROENCAPSULAÇÃO DE PIGMENTO NATURAL DE URUCUM E AVALIAÇÃO DE SUA ESTABILIDADE

Research, Society and Development, 2021
A microencapsulação é um processo que tem como base o confinamento da espécie ativa dentro de uma cápsula microscópica, que lhe pode conferir proteção contra fatores lábeis. Tal técnica vem sendo utilizada na indústria de flavorizantes e apresenta grande potencial na solução de dificuldades relativas ao uso de corantes naturais. O presente trabalho foi
Patrícia Beltrão Lessa Constant, Andréa Gomes da Silva, Ângela da Silva Borges, Filipe Oliveira Melo, Flávia Escapini Fanchiotti, Flávia Luiza Araújo Tavares da Silva, Paulo César Stringheta   +6 more
openaire   +2 more sources

From plant to fabric: Environmental opportunities associated with annatto dye for sustainable development in the textile industry

Coloration Technology, Volume 142, Issue 3, Page 333-353, June 2026.
Abstract Natural dyes are compounds that occur naturally in several organisms and are classified based on chemical structure and application method. The literature cites several natural dyes used in industrial transformation processes. Annatto dye is used in the food industry, and its biological pigment is extracted from the annatto seed. However, this
Marcel Jefferson Gonçalves, Tania Maria Costa, Karine Thaise Rainert, Vera Lúcia Vogel Faustino dos Santos, Ivonete Oliveira Barcellos, Lorena Benathar Ballod Tavares   +5 more
wiley   +1 more source

Traditional Uses, Chemical Constituents, and Biological Activities of Bixa orellana L.: A Review

The Scientific World Journal, Volume 2014, Issue 1, 2014., 2014
Bixa orellana L., popularly known as “urucum,” has been used by indigenous communities in Brazil and other tropical countries for several biological applications, which indicates its potential use as an active ingredient in pharmaceutical products.
Daniela de Araújo Vilar, Marina Suênia de Araujo Vilar, Túlio Flávio Accioly de Lima e Moura, Fernanda Nervo Raffin, Márcia Rosa de Oliveira, Camilo Flamarion de Oliveira Franco, Petrônio Filgueiras de Athayde-Filho, Margareth de Fátima Formiga Melo Diniz, José Maria Barbosa-Filho, Tsutomu Hatano   +9 more
wiley   +1 more source

Stemflow Dynamics in the Jamari National Forest (Brazilian Amazon): I. The Role of Tree Structure

Biotropica, Volume 58, Issue 3, May 2026.
A portion of rainfall that contacts tree canopies is drained down tree stems as stemflow. Stemflow is an underexamined component of rainfall partitioning in tropical forests. To investigate how tree canopy structural attributes influence stemflow in the Brazilian Amazon, we measured stemflow, rainfall, and dendrometric parameters of 56 trees in the ...
Jeferson Alberto de Lima, John Toland Van Stan II, Karolina Lewińska, Agnieszka Dradrach, Jakub Ceglarek, Kelly Cristina Tonello   +5 more
wiley   +1 more source

The “Hidden Diversity” of Medicinal Plants in Northeastern Brazil: Diagnosis and Prospects for Conservation and Biological Prospecting

Evidence-Based Complementary and Alternative Medicine, Volume 2013, Issue 1, 2013., 2013
Increases in ethnobotanical studies and knowledge in recent decades have led to a greater and more accurate interpretation of the overall patterns related to the use of medicinal plants, allowing for a clear identification of some ecological and cultural phenomena.
Deyvson Rodrigues Cavalcanti, Ulysses Paulino Albuquerque, Rômulo Romeu Nóbrega Alves   +2 more
wiley   +1 more source

Effect of an aqueous extract of annatto (Bixa orellana) seeds on lipid profile and biochemical markers of renal and hepatic function in hipercholesterolemic rats

Brazilian Archives of Biology and Technology, 2009
Annatto extract is a natural food color obtained from the outer coatings of the seeds of the Annatto tree (Bixa orellana L.). This is the first report in the literature that shows the relationship between the aqueous annatto extract and its influence on ...
Heberth de Paula, Maria Lúcia Pedrosa, Joamyr Victor Rossoni Júnior, Fabiano Kenji Haraguchi, Rinaldo Cardoso dos Santos, Marcelo Eustáquio Silva   +5 more
doaj   +1 more source

Elaphoglossum discolor (Kuhn) C.Chr. (Dryopteridaceae, Polypodiales, Monilophyta): first record for the state of Mato Grosso do Sul, Brazil [PDF]

Check List, 2015
Elaphoglossum discolor was recently discovered and collected on the Urucum plateau of the Brazilian state of Mato Grosso do Sul, lying in the western outskirts of the Pantanal flood plain. This is the southernmost distribution of E. discolor in Brazil.
Carlos Lehn, Elton Assis, Danilo Neves
doaj   +3 more sources

Complete Rainforest Elevational Gradient Reveals Unusual Diversity Patterns of Non‐Volant Mammals in New Guinea

Diversity and Distributions, Volume 31, Issue 12, December 2025.
ABSTRACT Aim We address a critical gap in the elevational community ecology of tropical non‐volant mammals in the Australian and Oceanian zoogeographic realms. Specifically, we document alpha and beta diversity, environmental predictors and community composition of individual clades in relation to their ecology and evolutionary history along an ...
František Vejmělka, Pierre‐Henri Fabre, Matěj Lövy, Kateřina Sam, Kristofer M. Helgen, Martin Macek, Monga Drumo, Vojtech Novotny   +7 more
wiley   +1 more source