2016
DOI: 10.3895/rbta.v10n1.1851
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ESTUDO DA ATIVIDADE DA ENZIMA PECTINAMETILESTERASE OBTIDA A PARTIR DO ALBEDO DE MARACUJÁ-AMARELO (Passiflora edulis f. Flavicarpa), FRESCO E LIOFILIZADO, EM DIFERENTES GRAUS DE MATURAÇÃO

Abstract: Pectina é um termo genérico para indicar a mistura de diferentes compostos na qual o ácido pectínico é o componente em maior quantidade, localizada na parede celular einterligada com outros polissacarídeos estruturais (celulose e hemicelulose) e proteínas para formar a estrutura da célula vegetal. As pectinases, enzimas pécticas ou enzimas pectinolíticas são responsáveis pela hidrólise das substâncias pécticas. A pectinametilesterase-PME é uma enzima que desesterifica a pectina de alto grau de metoxilação, tor… Show more

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“…And when the pH value increases, exceeding the isoelectric point, the deprotonation of the acid groups is observed, with an expansion of the chain networks due to electrostatic repulsion, increasing the hydrophilicity and favoring the penetration of water in the system, resulting in less compact and more deformable gels due to greater hydration (Chaicouski, 2016;Buldo et al, 2016;Morris et al, 2012;Waterhouse et al, 2014;Jong & Velde, 2007;Narkar et al, 2010;Cury et al, 2014;Prezotti et al, 2014;Souza et al, 2021), which justifies the results obtained in the compression test, when the pH was reduced from 5.0 to 3.0 with the concentration of fixed calcium, being observed an increase in the stress and a reduction in the strain of the gels, as demonstrated by the literature.…”
Section: Discussionmentioning
confidence: 99%
“…And when the pH value increases, exceeding the isoelectric point, the deprotonation of the acid groups is observed, with an expansion of the chain networks due to electrostatic repulsion, increasing the hydrophilicity and favoring the penetration of water in the system, resulting in less compact and more deformable gels due to greater hydration (Chaicouski, 2016;Buldo et al, 2016;Morris et al, 2012;Waterhouse et al, 2014;Jong & Velde, 2007;Narkar et al, 2010;Cury et al, 2014;Prezotti et al, 2014;Souza et al, 2021), which justifies the results obtained in the compression test, when the pH was reduced from 5.0 to 3.0 with the concentration of fixed calcium, being observed an increase in the stress and a reduction in the strain of the gels, as demonstrated by the literature.…”
Section: Discussionmentioning
confidence: 99%