2004
DOI: 10.1590/s0103-50532004000600002
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Optimization of thermogravimetric analysis of ash content in honey

Abstract: Um planejamento fatorial foi aplicado para avaliar o conteúdo de cinzas em mel pela termogravimetria bem como para estabelecer as condições de análise ótimas que produzem conteúdos de cinzas em concordância com aqueles obtidos pelo método oficial (gravimetria). Os efeitos de taxa de aquecimento e papel de fibra de vidro foram significativos bem como o efeito de interação entre estas variáveis. Taxas de aquecimento e o emprego do papel de fibra de vidro são recomendados para obter a incineração completa de mel … Show more

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Cited by 24 publications
(17 citation statements)
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“…1,2 Additionally, bee honey shows therapeutic features, like antioxidant properties, and these characteristics have attracted more and more consumers, increasing its commercialisation around the world 3,4 and, consequently, research concerning the characterization of honeys as well as the determination of their mineral content. [5][6][7][8] Such studies assure identification of authenticity of honey and thus protect consumers from adulterated products. Relevant analytical information is provided by the presence of different amounts of inorganic species in honeys.…”
Section: Introductionmentioning
confidence: 99%
“…1,2 Additionally, bee honey shows therapeutic features, like antioxidant properties, and these characteristics have attracted more and more consumers, increasing its commercialisation around the world 3,4 and, consequently, research concerning the characterization of honeys as well as the determination of their mineral content. [5][6][7][8] Such studies assure identification of authenticity of honey and thus protect consumers from adulterated products. Relevant analytical information is provided by the presence of different amounts of inorganic species in honeys.…”
Section: Introductionmentioning
confidence: 99%
“…These relationships were determined based on methodologies established by the Association of Analytical Communities [37] for processing organic samples and performing posterior metal assessments. While no clear relationships were found between the measured parameters and the metals studied, discrete cadmium and lead concentrations were found in all of the studied samples.…”
Section: Metals In Honeymentioning
confidence: 99%
“…The AOAC [37] lists calcination in a muffle furnace as the official method for determining metals in any organic sample. However, the application of this technique to honey is limited due to the chemical properties of distinct metals and the different ranges in which each type of metal can exist in a honey sample.…”
Section: Sample Treatmentsmentioning
confidence: 99%
“…Planejamento fatorial é empregado para se obter as melhores condições operacionais de um sistema sob estudo, realizando-se um número menor de experimentos quando comparado com o processo univariado de otimização do processo [43][44][45][46][47][48][49][50][51][52][53] . O planejamento fatorial determina que fatores têm efeitos relevantes na resposta e, também, como o efeito de um fator varia com os níveis dos outros fatores.…”
Section: Planejamento Fatorial Completo Com Ponto Centralunclassified
“…Essas interações são a principal componente de muitos processos de otimização. Sem o uso de planejamentos fatoriais de experimentos, importantes interações de fatores não são detectadas e a otimização máxima do sistema pode levar mais tempo para ser alcançada [43][44][45][46][47][48][49][50][51][52][53] .…”
Section: Planejamento Fatorial Completo Com Ponto Centralunclassified