A simple alternative decomposition procedure for the determination of Na, K, Ca, and Mg in
xanthan gum was proposed. The samples were treated in the presence of HNO3 and …

Shear tests using a coaxial cylinders viscometer were performed in order to determine the
rheological and thixotropic properties of xanthan gum dispersions with sodium bentonite in …

Os resíduos gerados nos processos agroindustriais representam perdas econômicas no
processo produtivo e se não receberem destinação adequada, poderão proporcionar …

Os fluidos de perfuração microemulsionados são uma nova tecnologia que objetiva
substituir os fluidos base óleo e base água, por possuir alta lubricidade, estabilidade, baixa …

O comportamento de fluidos de perfuração em altas temperaturas, particularmente aqueles
à base de água, é imprevisível e, de fato, ainda não foi totalmente compreendido. Desta …

Testes de cisalhamento utilizando um viscosímetro de cilindros coaxiais foram realizados
no intuito de se determinar as propriedades reológicas de dispersões de goma xantana …

The aim of this study was to evaluate the performance of a reflux system adapted in the
digestion tubes in sample preparation of xanthan gum for subsequent determination of Ca …

The study aimed to develop and characterize a microemulsified system based on cotton oil
and verify its effect on superoxide release anion and microbicidal activity by human …

Drilling operation of oil wells involves high costs and risks. With recent discoveries of deeper
reservoirs and difficult to access, there was an increase in the number of horizontal wells …

Xanthan gum is a microbial heteropolysaccharide of high molecular weight produced
through fermentation by bacteria of the genus Xanthomonas. Many factors can interfere in …