Hygienic-sanitary quality and effect of freezing time and temperature on total antioxidant capacity of human milk.

Detalhes bibliográficos
Autor(a) principal: Lopes, Lilian Maria Peixoto
Data de Publicação: 2021
Outros Autores: Chaves, Jaísa Oliveira, Cunha, Luciana Rodrigues da, Passos, Maria Cristina, Menezes, Camila Carvalho
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFOP
Texto Completo: http://www.repositorio.ufop.br/jspui/handle/123456789/13727
https://doi.org/10.1590/1981-6723.17919
Resumo: Knowledge of the hygienic-sanitary quality of raw human milk helps to establish the best storage conditions for the preservation of its nutritional and functional components. Therefore, this study aimed to evaluate the hygienic-sanitary quality of human milk extracted at the mothers’ homes, and to analyze the effect of freezing time and temperature on the milk’s total antioxidant capacity. Milk of five mothers was evaluated individually for Staphylococcus aureus, total aerobic mesophilic counts, mold and yeasts, total and thermotolerant coliforms. The milk pool was stored at -8 °C, -18 °C and -40 °C for 2, 4, 8 and 15 days and analyzed for the total antioxidant capacity by the 2,2-diphenyl-1-picrylhydrazyl free radical and 2,2-azino 3-ethylbenzothiazoline-6-sulfonic acid scavenging methods. The microbiological analyses of the raw human milk samples indicated counts of all the studied microorganisms above the safe limits. Related to the effect of freezing time and temperature on total antioxidant capacity, it was concluded that, regardless of the freezing temperature, a significant reduction occurred on total antioxidant capacity over time and that the lower the storage temperature, the greater its total antioxidant activity.
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spelling Hygienic-sanitary quality and effect of freezing time and temperature on total antioxidant capacity of human milk.Qualidade higiênico-sanitária e efeito do tempo e da temperatura de congelamento na capacidade antioxidante total do leite humano.Bioactive componentsFree radical ABTSRadical livre DPPHComponentes bioativosStorageKnowledge of the hygienic-sanitary quality of raw human milk helps to establish the best storage conditions for the preservation of its nutritional and functional components. Therefore, this study aimed to evaluate the hygienic-sanitary quality of human milk extracted at the mothers’ homes, and to analyze the effect of freezing time and temperature on the milk’s total antioxidant capacity. Milk of five mothers was evaluated individually for Staphylococcus aureus, total aerobic mesophilic counts, mold and yeasts, total and thermotolerant coliforms. The milk pool was stored at -8 °C, -18 °C and -40 °C for 2, 4, 8 and 15 days and analyzed for the total antioxidant capacity by the 2,2-diphenyl-1-picrylhydrazyl free radical and 2,2-azino 3-ethylbenzothiazoline-6-sulfonic acid scavenging methods. The microbiological analyses of the raw human milk samples indicated counts of all the studied microorganisms above the safe limits. Related to the effect of freezing time and temperature on total antioxidant capacity, it was concluded that, regardless of the freezing temperature, a significant reduction occurred on total antioxidant capacity over time and that the lower the storage temperature, the greater its total antioxidant activity.É relevante conhecer a qualidade higiênico-sanitária do leite humano cru e estabelecer as melhores condições de armazenamento para a preservação de seus componentes nutricionais e funcionais. Portanto, o objetivo deste estudo foi avaliar a qualidade higiênico-sanitária do leite humano extraído no domicílio de mães e analisar o efeito do tempo e da temperatura de congelamento na capacidade antioxidante total desse leite. O leite de cinco mães foi avaliado individualmente para Staphylococcus aureus, contagem total de mesófilos aeróbios, bolores e leveduras, coliformes totais e termotolerantes. As amostras foram armazenadas a -8 °C, -18 °C e -40 °C por 2, 4, 8 e 15 dias, e analisadas quanto à capacidade antioxidante total pelo radical livre 2,2-difenil-1-picrilhidrazil e por métodos de eliminação do ácido 2,2-azino 3-etilbenzotiazolino-6-sulfônico. As análises microbiológicas das amostras de leite humano cru indicaram contagens de todos os microrganismos estudados acima dos limites considerados seguros. Em relação ao efeito do tempo de congelamento e da temperatura na capacidade antioxidante total, concluiu-se que, independentemente da temperatura de congelamento, houve redução significativa ao longo do tempo, e quanto menor a temperatura de armazenamento, maior a atividade antioxidante total do leite.2021-09-14T17:11:20Z2021-09-14T17:11:20Z2021info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfLOPES, L. M. P. et al. Hygienic-sanitary quality and effect of freezing time and temperature on total antioxidant capacity of human milk. Brazilian Journal of Food and Technology, v. 23, p. e2019179, 2020. Disponível em: <https://www.scielo.br/j/bjft/a/fpLQh9Kp69WGB9mjGVtZsZH/?lang=en>. Acesso em: 10 jun. 2021.1981-6723http://www.repositorio.ufop.br/jspui/handle/123456789/13727https://doi.org/10.1590/1981-6723.17919This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Fonte: o PDF do artigo.info:eu-repo/semantics/openAccessLopes, Lilian Maria PeixotoChaves, Jaísa OliveiraCunha, Luciana Rodrigues daPassos, Maria CristinaMenezes, Camila Carvalhoengreponame:Repositório Institucional da UFOPinstname:Universidade Federal de Ouro Preto (UFOP)instacron:UFOP2021-09-14T17:11:28Zoai:repositorio.ufop.br:123456789/13727Repositório InstitucionalPUBhttp://www.repositorio.ufop.br/oai/requestrepositorio@ufop.edu.bropendoar:32332021-09-14T17:11:28Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)false
dc.title.none.fl_str_mv Hygienic-sanitary quality and effect of freezing time and temperature on total antioxidant capacity of human milk.
Qualidade higiênico-sanitária e efeito do tempo e da temperatura de congelamento na capacidade antioxidante total do leite humano.
title Hygienic-sanitary quality and effect of freezing time and temperature on total antioxidant capacity of human milk.
spellingShingle Hygienic-sanitary quality and effect of freezing time and temperature on total antioxidant capacity of human milk.
Lopes, Lilian Maria Peixoto
Bioactive components
Free radical ABTS
Radical livre DPPH
Componentes bioativos
Storage
title_short Hygienic-sanitary quality and effect of freezing time and temperature on total antioxidant capacity of human milk.
title_full Hygienic-sanitary quality and effect of freezing time and temperature on total antioxidant capacity of human milk.
title_fullStr Hygienic-sanitary quality and effect of freezing time and temperature on total antioxidant capacity of human milk.
title_full_unstemmed Hygienic-sanitary quality and effect of freezing time and temperature on total antioxidant capacity of human milk.
title_sort Hygienic-sanitary quality and effect of freezing time and temperature on total antioxidant capacity of human milk.
author Lopes, Lilian Maria Peixoto
author_facet Lopes, Lilian Maria Peixoto
Chaves, Jaísa Oliveira
Cunha, Luciana Rodrigues da
Passos, Maria Cristina
Menezes, Camila Carvalho
author_role author
author2 Chaves, Jaísa Oliveira
Cunha, Luciana Rodrigues da
Passos, Maria Cristina
Menezes, Camila Carvalho
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Lopes, Lilian Maria Peixoto
Chaves, Jaísa Oliveira
Cunha, Luciana Rodrigues da
Passos, Maria Cristina
Menezes, Camila Carvalho
dc.subject.por.fl_str_mv Bioactive components
Free radical ABTS
Radical livre DPPH
Componentes bioativos
Storage
topic Bioactive components
Free radical ABTS
Radical livre DPPH
Componentes bioativos
Storage
description Knowledge of the hygienic-sanitary quality of raw human milk helps to establish the best storage conditions for the preservation of its nutritional and functional components. Therefore, this study aimed to evaluate the hygienic-sanitary quality of human milk extracted at the mothers’ homes, and to analyze the effect of freezing time and temperature on the milk’s total antioxidant capacity. Milk of five mothers was evaluated individually for Staphylococcus aureus, total aerobic mesophilic counts, mold and yeasts, total and thermotolerant coliforms. The milk pool was stored at -8 °C, -18 °C and -40 °C for 2, 4, 8 and 15 days and analyzed for the total antioxidant capacity by the 2,2-diphenyl-1-picrylhydrazyl free radical and 2,2-azino 3-ethylbenzothiazoline-6-sulfonic acid scavenging methods. The microbiological analyses of the raw human milk samples indicated counts of all the studied microorganisms above the safe limits. Related to the effect of freezing time and temperature on total antioxidant capacity, it was concluded that, regardless of the freezing temperature, a significant reduction occurred on total antioxidant capacity over time and that the lower the storage temperature, the greater its total antioxidant activity.
publishDate 2021
dc.date.none.fl_str_mv 2021-09-14T17:11:20Z
2021-09-14T17:11:20Z
2021
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv LOPES, L. M. P. et al. Hygienic-sanitary quality and effect of freezing time and temperature on total antioxidant capacity of human milk. Brazilian Journal of Food and Technology, v. 23, p. e2019179, 2020. Disponível em: <https://www.scielo.br/j/bjft/a/fpLQh9Kp69WGB9mjGVtZsZH/?lang=en>. Acesso em: 10 jun. 2021.
1981-6723
http://www.repositorio.ufop.br/jspui/handle/123456789/13727
https://doi.org/10.1590/1981-6723.17919
identifier_str_mv LOPES, L. M. P. et al. Hygienic-sanitary quality and effect of freezing time and temperature on total antioxidant capacity of human milk. Brazilian Journal of Food and Technology, v. 23, p. e2019179, 2020. Disponível em: <https://www.scielo.br/j/bjft/a/fpLQh9Kp69WGB9mjGVtZsZH/?lang=en>. Acesso em: 10 jun. 2021.
1981-6723
url http://www.repositorio.ufop.br/jspui/handle/123456789/13727
https://doi.org/10.1590/1981-6723.17919
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFOP
instname:Universidade Federal de Ouro Preto (UFOP)
instacron:UFOP
instname_str Universidade Federal de Ouro Preto (UFOP)
instacron_str UFOP
institution UFOP
reponame_str Repositório Institucional da UFOP
collection Repositório Institucional da UFOP
repository.name.fl_str_mv Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)
repository.mail.fl_str_mv repositorio@ufop.edu.br
_version_ 1813002814017765376

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