Total alcoholic acidity and pH tests as quality parameters in stored soybean grains
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , |
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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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 |