2022
DOI: 10.4314/ijbcs.v15i5.27
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Prévention du brunissement enzymatique de l’aubergine violette (Solanum melongena L.) par traitement thermique : analyses cinétiques et thermodynamiques

Abstract: Le brunissement enzymatique est associé à l'action des polyphénol oxydases (PPO) et des peroxydases (POD). Les produits de ces enzymes provoquent des changements indésirables de couleur et de saveur des aubergines transformées. Une dopamine oxydase responsable du brunissement enzymatique a été isolée de l’aubergine violette (Solanum melongena L.). Ainsi, l’inactivation thermique et l’analyse thermodynamique ont été étudiées sur une base cinétique afin de contrôler ce phénomène physiologique. Les études cinétiq… Show more

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“…In fact, mangoes, like many other fruits and vegetables, are subject to enzymatic browning, which can occur during the various stages of handling, from harvesting to storage, if they are bruised or damaged. This physiological phenomenon is mainly caused by an enzyme, polyphenol oxidase, a copper metalloprotein that catalyses the oxidation of phenolic compounds into highly reactive quinones that polymerise into brown pigments (melanins), giving the fruit a dark colour and leading to a loss of nutritional value by altering organoleptic qualities [5]. The study of this enzyme is therefore important for the food industry to prevent the loss of marketable quality of fruit and vegetables [6].…”
Section: Introductionmentioning
confidence: 99%
“…In fact, mangoes, like many other fruits and vegetables, are subject to enzymatic browning, which can occur during the various stages of handling, from harvesting to storage, if they are bruised or damaged. This physiological phenomenon is mainly caused by an enzyme, polyphenol oxidase, a copper metalloprotein that catalyses the oxidation of phenolic compounds into highly reactive quinones that polymerise into brown pigments (melanins), giving the fruit a dark colour and leading to a loss of nutritional value by altering organoleptic qualities [5]. The study of this enzyme is therefore important for the food industry to prevent the loss of marketable quality of fruit and vegetables [6].…”
Section: Introductionmentioning
confidence: 99%