Níveis de contaminantes inorgânicos em cachaças da região do Quadrilátero Ferrífero armazenadas em copos in natura de esteatito (pedra-sabão)

Fernandes, Isabela da Costa; Fausto, Maria Arlene; Bezerra, Olívia Maria de Paula Alves; Quintaes, Késia Diego; Morgano, Marcelo A.; Cerqueira, Isabela Bissoli

doi:10.1590/s0100-40422013000900014

Cited by 8 publications

(9 citation statements)

References 18 publications

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“…As well as volatile compounds, metal ions such as Cu, Fe, Na, Mg, K and others may also cause spirit hazing (Adam et al 2002; Fernandes et al 2013; Ibanez et al 2008). Metal ions in white vodkas originate primarily from water (Krosnijs and Kuka 2003), distillation apparatuses, storage tanks and glass bottles.…”

Section: Introductionmentioning

confidence: 99%

Effect of filtration on elimination of turbidity and changes in volatile compounds concentrations in plum distillates

et al. 2019

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The purpose of this study was to investigate the effect of alcoholic strength by volume (ASV) and storage conditions on turbidity in plum brandies. Different types of filter sheet were also tested for their effects on turbidity, as well as on the chemical composition and organoleptic characteristics of the distillates. The raw materials used were two plum distillates with initial ASVs of 76.77% v/v and 81.92% v/v. The distillates were diluted to alcohol contents of 37.5%, 40% and 50% v/v and stored under various conditions for 64 days. Filtration was performed using two depth filter sheets, with nominal retention rates of 0.40–0.48 μm and 0.80 μm, or with an activated carbon-based filter sheet. The lowest turbidity was observed in samples stored at ambient temperature with an ASV of 50% v/v. Reducing the alcohol content and storage temperature caused turbidity to increase. Samples prepared from distillate with an initial alcohol content of 76.77% v/v were characterized by significantly higher turbidity than those produced from spirit with an initial ASV of 81.92% v/v. Lowering the storage temperature resulted in a larger decrease in the concentration of volatile compounds after filtration. Use of an activated carbon filter sheet caused the greatest decrease in the majority of volatiles. Use of a filter sheet with a nominal retention rate of 0.80 μm led to the greatest improvement in the organoleptics of the tested plum distillates.

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Section: Introductionmentioning

confidence: 99%

Effect of filtration on elimination of turbidity and changes in volatile compounds concentrations in plum distillates

et al. 2019

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“…The group applied a 10-fold dilution in samples purchased from Spanish liquor retailer and markets and observed the need of a matrix matching for cadmium quantification. A previous study by our group determined inorganic contaminants using an acid decomposition strategy as sample treatment to verify the contaminant transference from new soapstone glasses to sugarcane spirits (Fernandes et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Rapid Elemental Analysis of Sugarcane Spirits by Inductively Coupled Plasma: Optical Emission Spectrometry

Milani¹,

Morgano²,

Quintaes

2018

Analytical Letters

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A simple, direct, and rapid method was developed and employed to determine arsenic, cadmium, copper, lead, and nickel in sugarcane spirits by inductively coupled plasmaoptical emission spectrometry (ICP-OES). The samples were analyzed directly, avoiding the need for sample treatment or the use of toxic chemicals in agreement with the green chemistry principles. The accuracy was evaluated using spiked trials at three levels for each contaminant, with recoveries between 83 and 115%. High sensitivity was obtained, with limits of detection less than 0.008 mg L À1 for all elements but copper (0.05 mg L À1 ), in agreement with Brazilian and The Common Market of the South regulations. Low values of coefficient of variation were also observed, 0.4 to 7.7% for all analytes. The analysis time and sample amount required for the direct method were lower than methods that use sample treatment procedures, which is very positive for routine laboratory analysis.

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“…However, excessive intake of these metals is toxic and may cause serious health damages [2,[5][6][7]. Cadmium is a highly hazardous environmental pollutant, with significant toxicity in living beings [8]. The ingestion of this element can occur directly or through the process of bioaccumulation in a food chain.…”

mentioning

confidence: 99%

“…Atomic absorption spectrometry is commonly used for metal determination in beverages, which is the recommended method for the specific determination of copper [2,9]. In addition to that method, metals can be determined using X-Ray fluorescence spectrometry and inductively coupled plasma optical emission spectrometry (ICP-OES) [8,[10][11][12]].…”

mentioning

confidence: 99%

Simultaneous Determination of Metals in Cachaça: A Study on Comparison of Multivariate Methods and Quality Control

Ferreira

Rosa

Tomaz

et al. 2022

Orbital: Electron. J. Chem.

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This study aims to compare multivariate calibration methods developed from data obtained by square wave anodic stripping voltammetry using a hanging mercury drop electrode for simultaneous determination of metals in cachaça, the following metals were studied: copper, zinc and cadmium. Multivariate calibration, partial least squares (PLS) and artificial neural network (ANN) methods were used in previous studies using other electrodes for this determination. In this new study, besides ANN and PLS, a hybrid model that combines PLS and NN, namely PLS-Neural was used. Also, samples of industrial cachaças were incorporated into the study in addition to artisanal samples. The quality of the methods was evaluated in terms of coefficient of determination (R2) and root mean square error of prediction (RMSEP). F test was used for comparing methods at confidence level of 95%. Based on these studies, it was found that although all methods show good results, the method employing neural networks stands out in the determination of copper in samples of cachaça. All methods proved to be fast and relatively low-cost, and they can be used for such analyses.

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Níveis de contaminantes inorgânicos em cachaças da região do Quadrilátero Ferrífero armazenadas em copos in natura de esteatito (pedra-sabão)

Cited by 8 publications

References 18 publications

Effect of filtration on elimination of turbidity and changes in volatile compounds concentrations in plum distillates

Effect of filtration on elimination of turbidity and changes in volatile compounds concentrations in plum distillates

Rapid Elemental Analysis of Sugarcane Spirits by Inductively Coupled Plasma: Optical Emission Spectrometry

Simultaneous Determination of Metals in Cachaça: A Study on Comparison of Multivariate Methods and Quality Control

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