Total alcoholic acidity and pH tests as quality parameters in stored soybean grains

Detalhes bibliográficos
Autor(a) principal: Araujo, Maicon Marinho Vieira
Data de Publicação: 2016
Outros Autores: Caneppele, Maria Aparecida Braga, Bianchini, Maria das Graças Assis
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/38707
Resumo: Despite the technology available to agriculture, qualitative and quantitative losses occurring during post-harvest are still not controlled, and stored grains may undergo changes in their composition, due to storage conditions. This study aimed at determining the sensitivity of the alcoholic acidity and pH tests in soybean (GB 874RR cultivar) grains with different quality standards obtained during storage. A completely randomized design, in a 3 x 6 x 5 (3 storage conditions x 6 storage times x 5 methods) factorial scheme, was used. A correlation was observed among pH, total acidity content (r = 0.888) and grain quality parameters. Deterioration was identified based on the total acidity content, showing a high correlation with fungal incidence (r = 0.864), ether extract (r = -0.781) and electrical conductivity (r = 0.923). The use of phenolphthalein as indicator is more sensitive than pH 8.8. Among the pH determination methods, AOAC was the most suitable for assessing the quality loss during storage.
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spelling Total alcoholic acidity and pH tests as quality parameters in stored soybean grainsTestes de acidez alcoólica total e pH como parâmetros de qualidade em grãos de soja armazenadosGlycine max L.fatty acidstorage conditions.Glycine max L.ácido graxocondições de armazenamento.Despite the technology available to agriculture, qualitative and quantitative losses occurring during post-harvest are still not controlled, and stored grains may undergo changes in their composition, due to storage conditions. This study aimed at determining the sensitivity of the alcoholic acidity and pH tests in soybean (GB 874RR cultivar) grains with different quality standards obtained during storage. A completely randomized design, in a 3 x 6 x 5 (3 storage conditions x 6 storage times x 5 methods) factorial scheme, was used. A correlation was observed among pH, total acidity content (r = 0.888) and grain quality parameters. Deterioration was identified based on the total acidity content, showing a high correlation with fungal incidence (r = 0.864), ether extract (r = -0.781) and electrical conductivity (r = 0.923). The use of phenolphthalein as indicator is more sensitive than pH 8.8. Among the pH determination methods, AOAC was the most suitable for assessing the quality loss during storage.Apesar da tecnologia disponível à agricultura, as perdas qualitativas e quantitativas, originadas durante a pós-colheita, ainda não são controladas, e os grãos armazenados podem sofrer alterações em sua composição, em razão da condição de estocagem. Objetivou-se verificar a sensibilidade do teste de teor de acidez alcoólico e pH, em grãos de soja (cultivar GB 874RR) com diferentes padrões de qualidade obtidos durante o armazenamento. Utilizou-se delineamento inteiramente casualizado, em esquema fatorial 3 x 6 x 5 (3 condições de armazenamento x 6 tempos de armazenamento x 5 métodos). Observou-se correlação entre o pH, teor de acidez total (r = 0,888) e parâmetros de qualidade dos grãos. Identificou-se processo deteriorativo a partir do teor de acidez total, apresentando alta correlação com incidência fúngica (r = 0,864), extrato etéreo (r = -0,781) e condutividade elétrica (r = 0,923). A utilização de fenolftaleína como indicador é mais sensível que a do pH 8,8. Dentre os métodos de determinação de pH, o da AOAC demonstrou ser mais adequado para avaliação da perda de qualidade ao longo do armazenamento.Escola de Agronomia - Universidade Federal de Goiás2016-07-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresapplication/pdfhttps://revistas.ufg.br/pat/article/view/38707Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 46, n. 2, Apr./Jun. 2016; 191-196Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 46, n. 2, abr./jun. 2016; 191-196Pesquisa Agropecuária Tropical; v. 46, n. 2, abr./jun. 2016; 191-1961983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGenghttps://revistas.ufg.br/pat/article/view/38707/21322Araujo, Maicon Marinho VieiraCaneppele, Maria Aparecida BragaBianchini, Maria das Graças Assisinfo:eu-repo/semantics/openAccess2020-07-13T18:00:03Zoai:ojs.revistas.ufg.br:article/38707Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:11.203896Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv Total alcoholic acidity and pH tests as quality parameters in stored soybean grains
Testes de acidez alcoólica total e pH como parâmetros de qualidade em grãos de soja armazenados
title Total alcoholic acidity and pH tests as quality parameters in stored soybean grains
spellingShingle Total alcoholic acidity and pH tests as quality parameters in stored soybean grains
Araujo, Maicon Marinho Vieira
Glycine max L.
fatty acid
storage conditions.
Glycine max L.
ácido graxo
condições de armazenamento.
title_short Total alcoholic acidity and pH tests as quality parameters in stored soybean grains
title_full Total alcoholic acidity and pH tests as quality parameters in stored soybean grains
title_fullStr Total alcoholic acidity and pH tests as quality parameters in stored soybean grains
title_full_unstemmed Total alcoholic acidity and pH tests as quality parameters in stored soybean grains
title_sort Total alcoholic acidity and pH tests as quality parameters in stored soybean grains
author Araujo, Maicon Marinho Vieira
author_facet Araujo, Maicon Marinho Vieira
Caneppele, Maria Aparecida Braga
Bianchini, Maria das Graças Assis
author_role author
author2 Caneppele, Maria Aparecida Braga
Bianchini, Maria das Graças Assis
author2_role author
author
dc.contributor.author.fl_str_mv Araujo, Maicon Marinho Vieira
Caneppele, Maria Aparecida Braga
Bianchini, Maria das Graças Assis
dc.subject.por.fl_str_mv Glycine max L.
fatty acid
storage conditions.
Glycine max L.
ácido graxo
condições de armazenamento.
topic Glycine max L.
fatty acid
storage conditions.
Glycine max L.
ácido graxo
condições de armazenamento.
description Despite the technology available to agriculture, qualitative and quantitative losses occurring during post-harvest are still not controlled, and stored grains may undergo changes in their composition, due to storage conditions. This study aimed at determining the sensitivity of the alcoholic acidity and pH tests in soybean (GB 874RR cultivar) grains with different quality standards obtained during storage. A completely randomized design, in a 3 x 6 x 5 (3 storage conditions x 6 storage times x 5 methods) factorial scheme, was used. A correlation was observed among pH, total acidity content (r = 0.888) and grain quality parameters. Deterioration was identified based on the total acidity content, showing a high correlation with fungal incidence (r = 0.864), ether extract (r = -0.781) and electrical conductivity (r = 0.923). The use of phenolphthalein as indicator is more sensitive than pH 8.8. Among the pH determination methods, AOAC was the most suitable for assessing the quality loss during storage.
publishDate 2016
dc.date.none.fl_str_mv 2016-07-15
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Avaliado por pares
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/pat/article/view/38707
url https://revistas.ufg.br/pat/article/view/38707
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/38707/21322
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.publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
dc.source.none.fl_str_mv Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 46, n. 2, Apr./Jun. 2016; 191-196
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 46, n. 2, abr./jun. 2016; 191-196
Pesquisa Agropecuária Tropical; v. 46, n. 2, abr./jun. 2016; 191-196
1983-4063
reponame:Pesquisa Agropecuária Tropical (Online)
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Pesquisa Agropecuária Tropical (Online)
collection Pesquisa Agropecuária Tropical (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv aseleguini.pat@gmail.com||mgoes@agro.ufg.br
_version_ 1799874819310747648

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