2008
DOI: 10.4025/actasciagron.v30i1.1129
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Atuação das enzimas oxidativas no escurecimento causado pela injúria por frio em raízes de batata-baroa

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Cited by 6 publications
(6 citation statements)
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(6 reference statements)
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“…É considerada a enzima vegetal mais estável ao calor e sua inativação tem sido usada como indicador de adequação de branqueamento (FREITAS et al, 2008). PPO, por sua vez, promove a oxidação enzimática de compostos fenólicos, produzindo, inicialmente, quinona, que rapidamente se condensa, formando pigmentos insolúveis e escuros, denominados melanina, ou reagem não enzimaticamente com aminoácidos, proteínas ou outros compostos (MENOLLI et al, 2008).…”
unclassified
“…É considerada a enzima vegetal mais estável ao calor e sua inativação tem sido usada como indicador de adequação de branqueamento (FREITAS et al, 2008). PPO, por sua vez, promove a oxidação enzimática de compostos fenólicos, produzindo, inicialmente, quinona, que rapidamente se condensa, formando pigmentos insolúveis e escuros, denominados melanina, ou reagem não enzimaticamente com aminoácidos, proteínas ou outros compostos (MENOLLI et al, 2008).…”
unclassified
“…After 50 days of storage and 4 days at ambient temperature (50 + 4 days), the roots showed slight discoloration, brown lesions, and depressions on the outside, as well as browning on the inside with a uniform pattern in BRS Amélia and an uneven pattern in BRS Rubissol. This browning is associated with chilling injury, which has already been reported in arracacha (Arracacia xanthorrhiza) and arrowleaf elephant ear (Xanthosoma sagittifolium) (Menolli et al, 2008;Souza & Finger, 2014). Storage at 13°C did not interfere with morphological quality, with no significant changes observed between days 0 and 50 + 4.…”
Section: Chilling Injury Indexmentioning
confidence: 57%
“…Peroxidase is an oxidoreductase that is normally induced by biotic and abiotic stress conditions (Singh et al, 2016). Its ability to catalyze the oxidation of phenolic compounds in the presence of hydrogen peroxide makes it an important detoxifying enzyme (Menolli et al, 2008;Raimbault et al, 2011;Menolli, Finger, Barbosa, Correia, & Vieira, 2011). However, o-quinones, the product of phenol oxidation, are highly reactive molecules that polymerize into brown pigments (Trejo-Márquez, Ramírez-Villatoro, & Camacho de la Rosa, 2010).…”
Section: Peroxidase Polyphenol Oxidase and Ascorbate Peroxidasementioning
confidence: 99%
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