Electrochemical Evaluation of Cd, Cu, and Fe in Different Brands of Craft Beers from Quito, Ecuador

López-Balladares, Oscar; Espinoza-Montero, Patricio J.; Fernández, Lenys

doi:10.3390/foods12112264

Cited by 3 publications

(2 citation statements)

References 65 publications

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“…The presence of iron and heavy metals in craft beers in quantities surpassing the recommended exposure limits set by sanitary standards can pose a risk to human health. Furthermore, such elevated levels of heavy metals can have a detrimental impact on the beer’s quality and stability [ 48 ]. It is noteworthy that iron, in particular, has the potential to generate off-flavors and induce color change in beer by interacting with polyphenols [ 49 , 50 ].…”

Section: Discussionmentioning

confidence: 99%

Antibiofilm Effect of Curcumin on Saccharomyces boulardii during Beer Fermentation and Bottle Aging

Mohammadi,

Saris

2023

Biomolecules

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In a prior study, we elucidated the biofilm formation of Saccharomyces boulardii on glass surfaces during beer bottle aging. Here, we supplemented brewing wort with curcumin at 25 μg/mL concentration to mitigate S. boulardii biofilm and enhance beer’s functional and sensory attributes. An assessment encompassing biofilm growth and development, fermentation performance, FLO gene expression, yeast ultrastructure, bioactive content, and consumer acceptance of the beer was conducted throughout fermentation and aging. Crystal violet (CV) and XTT reduction assays unveiled a significant (p < 0.05) reduction in biofilm formation and development. Fluorescent staining (FITC-conA) and imaging with confocal laser scanning microscopy provided visual evidence regarding reduced exopolysaccharide content and biofilm thickness. Transcriptional analyses showed that key adhesins (FLO1, FLO5, FLO9, and FLO10) were downregulated, whereas FLO11 expression remained relatively stable. Although there were initial variations in terms of yeast population and fermentation performance, by day 6, the number of S. boulardii in the test group had almost reached the level of the control group (8.3 log CFU/mL) and remained stable thereafter. The supplementation of brewing wort with curcumin led to a significant (p < 0.05) increase in the beer’s total phenolic and flavonoid content. In conclusion, curcumin shows promising potential for use as an additive in beer, offering potential antibiofilm and health benefits without compromising the beer’s overall characteristics.

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Section: Discussionmentioning

confidence: 99%

Antibiofilm Effect of Curcumin on Saccharomyces boulardii during Beer Fermentation and Bottle Aging

Mohammadi,

Saris

2023

Biomolecules

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“…These results show that the BC/Cu 2 O composite is a promising material for Hg 2+ electrochemical detection. In work, the concentrations of Cd(II), Cu(II), and Fe(III) were determined in 13 brands of craft beer with the highest consumption in Quito, Ecuador, by DPASV using a boron-doped diamond (BDD) working electrode. The BDD electrode used had favorable morphological and electrochemical properties for the detection of metals, such as Cd(II), Cu(II), and Fe(III).…”

Section: Methodsmentioning

confidence: 99%

Development of a Method for Multisensory Stripping Voltammetry in the Analysis of Medical Preparations

Kolesnichenko

2023

ACS Omega

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For the effective dosage of newly developed ophthalmic drugs, an assessment of the dynamics of their concentration in lacrimal fluid over time is required. To express the detection and identification of drugs, new methods are needed that must meet numerous requirements, not the least of which are selectivity, speed, the absence of false-negative results, and costeffectiveness. The possibility of identifying anesthetics (sevoflurane) in lacrimal fluid has been studied using a new electrochemical method of multisensory inversion voltammetry in the electronic tongue and electronic nose format. The measurements were performed on a planar electrode, which is a three-electrode structure. The solution of the test system consisted of 0.05 M KCl, which contained the metal cations Zn 2+ , Cd 2+ , Pb 2+ , Co 2+ , and Hg 2+ at a concentration of 5 × 10 −5 M. It is shown that this method is effective for the determination of anesthetics, and the dynamics of changes in their concentration over time are examined. This study aimed to research the behavioral pharmacokinetics in the lacrimal fluid of the opioid drug sevoflurane in pediatric ophthalmology using multisensory stripping voltammetry in patients during strabismus correction surgery. The dynamics of changes in their concentrations over time were examined. After the instillation of the anesthetics in patients, their concentrations in the tear fluid remained unchanged within 10 min. The list of organic substances that can be determined by multisensory stripping voltammetry has been extended. The class of organic substances determined by the method of multisensory inversion voltammetry has been expanded.

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Evaluation of a gold-nanoparticle-modified carbon-fiber microelectrode to quantify mercury in canned tuna sold in Ecuador

Vásquez-Velarde,

Fernández,

Bolaños-Méndez

et al. 2023

Chemosphere

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Electrochemical Evaluation of Cd, Cu, and Fe in Different Brands of Craft Beers from Quito, Ecuador

Cited by 3 publications

References 65 publications

Antibiofilm Effect of Curcumin on Saccharomyces boulardii during Beer Fermentation and Bottle Aging

Antibiofilm Effect of Curcumin on Saccharomyces boulardii during Beer Fermentation and Bottle Aging

Development of a Method for Multisensory Stripping Voltammetry in the Analysis of Medical Preparations

Evaluation of a gold-nanoparticle-modified carbon-fiber microelectrode to quantify mercury in canned tuna sold in Ecuador

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