1991
DOI: 10.1111/j.1365-2621.1991.tb05298.x
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Changes of Selected Physical and Chemical Components in the Development of the Hard‐to‐Cook Bean Defect

Abstract: The effects of storage temperature and humidity were monitored on several physical and chemical components of cowpeas and beans. Seeds stored at 29"C, 65% RH required prolonged cooking times; however, seeds stored in other conditions (YC, 30% RH; 29°C 30% RH; and YC, 65% RH) maintained short, stable cooking times throughout storage. As cooking time increased, phytate, phytase activity, amylose solubility, high methoxyl pectin and protein solubility decreased. Solids leached during soaking and low methoxyl pect… Show more

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Cited by 74 publications
(87 citation statements)
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“…This result has also been observed by other authors (Hentges et al, 1991;Ribeiro et al, 2005). Moreover, the low protein solubility found in beans is due to a secondary structure of the beta-sheet protein found in this leguminous species, which becomes more insoluble when heat is applied (Carbonaro et al, 2008); it may also be associated with the production of insoluble aggregates during storage.…”
Section: Discussionsupporting
confidence: 73%
“…This result has also been observed by other authors (Hentges et al, 1991;Ribeiro et al, 2005). Moreover, the low protein solubility found in beans is due to a secondary structure of the beta-sheet protein found in this leguminous species, which becomes more insoluble when heat is applied (Carbonaro et al, 2008); it may also be associated with the production of insoluble aggregates during storage.…”
Section: Discussionsupporting
confidence: 73%
“…O armazenamento inadequado de feijões pode promover também alterações na composição química [3,14] e no perfil eletroforético de proteínas [7].…”
Section: Propriedades Físicas E Químicas De Feijão Comum Pretounclassified
“…Não foram observadas alterações em função da utilização de radiação UV-C. Segundo Hentges et al (1991) e Coelho et al (2007) as análises de acidez, sólidos lixiviados, condutividade elétrica e pH estão intimamente relacionadas e fornecem uma visão geral da integridade celular dos grãos. Durante o armazenamento algumas enzimas como lipases e fitases atuam nos grãos, liberando moléculas ácidas no meio, aumentando a acidez e diminuindo o pH dos grãos.…”
Section: Resultsunclassified