Study to detect mixed adulterations in milk, using electrochemical techniques as a proposal for complementary measures for analysis routines

Detalhes bibliográficos
Autor(a) principal: Santos, Isabela Tavares Costa dos
Data de Publicação: 2023
Tipo de documento: Trabalho de conclusão de curso
Idioma: eng
Título da fonte: Repositório Institucional da UFJF
Texto Completo: https://repositorio.ufjf.br/jspui/handle/ufjf/16588
Resumo: -
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spelling Nascimento, Wesley William Gonçalveshttp://lattes.cnpq.br/4382741507095401Silva, Monique Ellen Torres dahttp://lattes.cnpq.br/6203070783977568Jesus Filho, Milton dehttp://lattes.cnpq.br/6217646834290073http://lattes.cnpq.br/5610489536831290Santos, Isabela Tavares Costa dos2024-02-01T16:15:18Z2024-01-312024-02-01T16:15:18Z2023-12-12https://repositorio.ufjf.br/jspui/handle/ufjf/16588-This work presents a study of electrochemical techniques as a proposal for complementary measures to be used in raw milk analysis routines to detect adulterations, especially the so- called mixed frauds. Mixed additions in pre-balanced concentrations in order to mask detections by official methods are common in Brazil. These mixed additions are difficult to discover in the analysis routines of the dairy industries and can bring losses to the producing companies, in addition to risks to the health of the consumer. Therefore, the greater the number of possible complementary techniques to be used in the detection of fraud in milk, the greater the robustness of the analyzes and the greater the guarantee of the quality of the milk produced. Electroanalytical methods have advantages as they are physicochemical properties with easy data acquisition, allowing practical analysis methodologies and fast. In this work, a study of electrical impedance spectroscopy (EIS) was carried out, in particular, addressing the magnitudes, impedance module (Z), real part (Re(Z*)) and imaginary part (Im(Z*), difusion coeficiente (D) and electrical admittance (Y ). In addition, analyzes of electrical conductivity and pH were also analyzed. Genuine raw milk samples were studied and purposely added of sodium chloride (0; 0,05; 0,1; 0,15; 0,2% p/v), ethanol (0; 2.0; 3.0; 4.0; 5.0% v/v), and sucrose (0; 1.8; 3.0; 3.6; 4.8% p/v), in these concentrations, which are substances cited in the literature as used for the preparation of mixed frauds. The results showed that the addition of these substances to milk causes changes in the electrochemical characteristics of the samples and in the profiles of the impedance spectra that were analyzed. Was observad a specific behavior for each adulterant. The behaviors of each technique analyzed were discussed and will be presented. The work demonstrates that the proposed electrochemical techniques can serve as complementary analyzes to the current methods used in raw milk analysis routines, especially for the detection of substances that make up the so-called mixed frauds increasing the robustness of the analyzes.engUniversidade Federal de Juiz de Fora - Campus Avançado de Governador ValadaresUFJF/GVBrasilICV - Instituto de Ciências da Vidahttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/embargoedAccessCNPQ::CIENCIAS DA SAUDE::FARMACIAMilkAdulteration detectionMixed fraudsQuality controlElectrical impedance espectroscopyElectrical conductivepHTechnology inovationStudy to detect mixed adulterations in milk, using electrochemical techniques as a proposal for complementary measures for analysis routinesinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/bachelorThesisreponame:Repositório Institucional da UFJFinstname:Universidade Federal de Juiz de Fora (UFJF)instacron:UFJFCC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8811https://repositorio.ufjf.br/jspui/bitstream/ufjf/16588/1/license_rdfe39d27027a6cc9cb039ad269a5db8e34MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://repositorio.ufjf.br/jspui/bitstream/ufjf/16588/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52ufjf/165882024-02-01 14:15:18.921oai:hermes.cpd.ufjf.br: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Repositório InstitucionalPUBhttps://repositorio.ufjf.br/oai/requestopendoar:2024-02-01T16:15:18Repositório Institucional da UFJF - Universidade Federal de Juiz de Fora (UFJF)false
dc.title.pt_BR.fl_str_mv Study to detect mixed adulterations in milk, using electrochemical techniques as a proposal for complementary measures for analysis routines
title Study to detect mixed adulterations in milk, using electrochemical techniques as a proposal for complementary measures for analysis routines
spellingShingle Study to detect mixed adulterations in milk, using electrochemical techniques as a proposal for complementary measures for analysis routines
Santos, Isabela Tavares Costa dos
CNPQ::CIENCIAS DA SAUDE::FARMACIA
Milk
Adulteration detection
Mixed frauds
Quality control
Electrical impedance espectroscopy
Electrical conductive
pH
Technology inovation
title_short Study to detect mixed adulterations in milk, using electrochemical techniques as a proposal for complementary measures for analysis routines
title_full Study to detect mixed adulterations in milk, using electrochemical techniques as a proposal for complementary measures for analysis routines
title_fullStr Study to detect mixed adulterations in milk, using electrochemical techniques as a proposal for complementary measures for analysis routines
title_full_unstemmed Study to detect mixed adulterations in milk, using electrochemical techniques as a proposal for complementary measures for analysis routines
title_sort Study to detect mixed adulterations in milk, using electrochemical techniques as a proposal for complementary measures for analysis routines
author Santos, Isabela Tavares Costa dos
author_facet Santos, Isabela Tavares Costa dos
author_role author
dc.contributor.advisor1.fl_str_mv Nascimento, Wesley William Gonçalves
dc.contributor.advisor1Lattes.fl_str_mv http://lattes.cnpq.br/4382741507095401
dc.contributor.advisor-co1.fl_str_mv Silva, Monique Ellen Torres da
dc.contributor.advisor-co1Lattes.fl_str_mv http://lattes.cnpq.br/6203070783977568
dc.contributor.referee1.fl_str_mv Jesus Filho, Milton de
dc.contributor.referee1Lattes.fl_str_mv http://lattes.cnpq.br/6217646834290073
dc.contributor.authorLattes.fl_str_mv http://lattes.cnpq.br/5610489536831290
dc.contributor.author.fl_str_mv Santos, Isabela Tavares Costa dos
contributor_str_mv Nascimento, Wesley William Gonçalves
Silva, Monique Ellen Torres da
Jesus Filho, Milton de
dc.subject.cnpq.fl_str_mv CNPQ::CIENCIAS DA SAUDE::FARMACIA
topic CNPQ::CIENCIAS DA SAUDE::FARMACIA
Milk
Adulteration detection
Mixed frauds
Quality control
Electrical impedance espectroscopy
Electrical conductive
pH
Technology inovation
dc.subject.por.fl_str_mv Milk
Adulteration detection
Mixed frauds
Quality control
Electrical impedance espectroscopy
Electrical conductive
pH
Technology inovation
description -
publishDate 2023
dc.date.issued.fl_str_mv 2023-12-12
dc.date.accessioned.fl_str_mv 2024-02-01T16:15:18Z
dc.date.available.fl_str_mv 2024-01-31
2024-02-01T16:15:18Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/bachelorThesis
format bachelorThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://repositorio.ufjf.br/jspui/handle/ufjf/16588
url https://repositorio.ufjf.br/jspui/handle/ufjf/16588
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv http://creativecommons.org/licenses/by-nc-nd/3.0/br/
info:eu-repo/semantics/embargoedAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/3.0/br/
eu_rights_str_mv embargoedAccess
dc.publisher.none.fl_str_mv Universidade Federal de Juiz de Fora - Campus Avançado de Governador Valadares
dc.publisher.initials.fl_str_mv UFJF/GV
dc.publisher.country.fl_str_mv Brasil
dc.publisher.department.fl_str_mv ICV - Instituto de Ciências da Vida
publisher.none.fl_str_mv Universidade Federal de Juiz de Fora - Campus Avançado de Governador Valadares
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFJF
instname:Universidade Federal de Juiz de Fora (UFJF)
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