Results 161 to 170 of about 1,665 (198)

Chitosan microspheres containing the natural urucum pigment

Journal of Microencapsulation, 2005
An increasing trend in the food and pharmaceutical industries is toward replacing synthetic additives with natural products. However, in this regard, difficulties may be encountered due to the instability of such compounds. Encapsulation has become an important process to protect natural pigments.
Alexandre Luis Parize
exaly   +3 more sources

Perceptions and Attitudes of Urucum Settlement Residents about Local Wildlife

Anthrozoos, 2019
ABSTRACTThis study aimed to evaluate perceptions and attitudes of local people about wild fauna and was carried out in the Urucum settlement, in the Brazilian Pantanal. We sought to: (1) identify which species of wild animals were most frequently chosen by residents of the Urucum settlement based on their familiarity; (2) identify the values associated
Grasiela Edith De Oliveira Porfirio, Heitor Miraglia Herrera   +1 more
exaly   +2 more sources

Armazenamento de grãos residuais de urucum sob atmosfera controlada [PDF]

Revista Brasileira De Engenharia Agricola E Ambiental, 2015
RESUMO Neste trabalho avaliou-se a estabilidade de grãos residuais de urucum acondicionados em embalagens flexíveis laminadas durante 90 dias de armazenamento em condições controladas de temperatura (25 e 40 °C) e umidades relativas (55 e 83%). As amostras foram analisadas a cada 15 dias, por meio da análise do teor de água, atividade de água, pH ...
Alexandre J De M Queiroz, Rossana M F de Figueiredo   +1 more
exaly   +5 more sources

Cinética de secagem de farinha de grãos residuais de urucum [PDF]

Revista Brasileira De Engenharia Agricola E Ambiental, 2013
O processo de extração do corante bixina produz enorme quantidade de grãos residuais de urucum que vem sendo descartada em grande parte pelas indústrias. Objetivou-se, neste trabalho, desidratar farinhas de grãos residuais de urucum, com e sem a camada de óleo proveniente do processo de extração dos pigmentos em estufa com circulação forçada de ar nas ...
Alexandre J De M Queiroz, Rossana M F de Figueiredo   +1 more
exaly   +4 more sources

Stratigraphy and mineralogy of the manganese ores of Urucum, Mato Grosso, Brazil

Geologische Rundschau: Zeitschrift Fur Allgemeine Geologie, 1981
Preliminar results of geological mapping and microscopic studies are presented. The mineral deposits of Urucum are clearly different from the rest of the banded iron-formations in Brazil: Urucum is essentially younger, and probably Late Proterozoic, the sequence is unmetamorphic. Two main types of manganese ore exist in Urucum, namely:
D. H. G. Walde, E. Gierth, O. H. Leonardos   +2 more
exaly   +2 more sources

Prereduction of Manganese Briquettes Produced with Tailing Dam Materials from Urucum/Brazil

SSRN Electronic Journal, 2021
In Brazil, the waste disposal in tailing dams has been a significant problem. During the production of ferroalloy raw materials up to 50 % of the material extracted from the mines is placed in tailing dams due to its low particle size. The aim of this work is to evaluate the behaviour of briquettes made with tailing dam material from Urucum/Brazil in ...
Leandro G. M. de Jesus, Merete Tangstad
openaire   +1 more source

The Fe Mn ore deposits of Urucum, Brazil: An oxygen isotope study

Chemical Geology: Isotope Geoscience section, 1987
Abstract The Fe Mn ore deposits of Urucum are located close to the Brasilian-Bolivian border. They appear to be considerably younger (Late Proterozoic) than most other banded iron ore formations. The Mn ores occur in three or four well-defined beds.
J. Hoefs, G. Müller, K.A. Schuster, D. Walde   +3 more
openaire   +1 more source

Black elbaite from Corrego do Urucum, Minas Gerais, Brazil

Mineralogical Magazine, 1978
SummaryBlack tourmaline from Corrego do Urucum, Brazil, is an elbaite coloured by iron and manganese with blue, green, and pink regions. Polarized spectra show the absorption bands expected in elbaite (Fe-caused blue and green, and pink, which is probably caused by Mn). The colour distribution in the transverse sections does not conform to the symmetry
B. E. Prescott, K. Nassau
openaire   +1 more source

APLICAÇÕES DO URUCUM: UMA PROSPECÇÃO TECNOLÓGICA

Anais do Simpósio Estadual de Produtos Naturais, 2021
Gabryel Bernardo Vieira de Lima, Amaro Antonio Silva Neto, Lorena Viana de Andrade, Maria Juliana Santos da Silva, Isabelly Dálete Ferreira Ribeiro, Michely Correia Diniz   +5 more
openaire   +1 more source