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

Authors

  • Maicon Marinho Vieira Araujo Universidade Federal de Mato Grosso http://orcid.org/0000-0002-7200-4751
  • Maria Aparecida Braga Caneppele Universidade Federal de Mato Grosso
  • Maria das Graças Assis Bianchini Universidade Federal de Mato Grosso

Keywords:

Glycine max L., fatty acid, storage conditions.

Abstract

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.

Downloads

Download data is not yet available.

Author Biography

Maicon Marinho Vieira Araujo, Universidade Federal de Mato Grosso

Possui graduação em Agronomia (2011) e mestrado em Agricultura Tropical (Pós-colheita e Armazenamento de Grãos) pela Universidade Federal de Mato Grosso. Atualmente é doutorando do Programa de Pós-Graduação em Agricultura Tropical (Fisiologia Vegetal), pela Universalidade Federal de Mato Grosso.Tem experiência na áreas de Fitopatologia, Pós-Colheita e Fisiologia Vegetal.

Downloads

Published

2016-07-15

How to Cite

ARAUJO, M. M. V.; CANEPPELE, M. A. B.; BIANCHINI, M. das G. A. Total alcoholic acidity and pH tests as quality parameters in stored soybean grains. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, v. 46, n. 2, p. 191–196, 2016. Disponível em: https://revistas.ufg.br/pat/article/view/38707. Acesso em: 17 jul. 2024.

Issue

v. 46, n. 2, Apr./Jun. 2016

Section

Research Article

License

Authors will not be paid for published articles and must waive their copyright in favor of the PAT journal. On the other hand, they are solely responsible for the content of those articles, even if the Editor holds the right to adjust them to the norms of the journal. Authors are allowed to publish their articles simultaneously in their institutional repositories, as soon as the original publication at the PAT journal is mentioned.