http://www.cnr.it/ontology/cnr/individuo/prodotto/ID283901

Relationship between Quality Parameters and the Overall Appearance in Lettuce during Storage (Articolo in rivista)

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Relationship between Quality Parameters and the Overall Appearance in Lettuce during Storage (Articolo in rivista) (literal)

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Pace B., Cardinali A., D'Antuono I. , Serio F., Cefola M. (2014)
Relationship between Quality Parameters and the Overall Appearance in Lettuce during Storage
in International Journal of Food Processing Technology; Cosmos Scholars Publishing House, Richmond (Canada)
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Pace B., ISPA-CNR Cardinali A., ISPA-CNR D'Antuono I., ISPA-CNR Serio F., ISPA-CNR Cefola M. ISPA-CNR (literal)

Titolo

Relationship between Quality Parameters and the Overall Appearance in Lettuce during Storage (literal)

Abstract

Fresh-cut and whole iceberg lettuce were stored in refrigerated condition and the main sensory (overall appearance: OA, browning index: BI), physical (colour variation: ?E*), chemical (respiration activity: RA, ammonia content: A) and biochemical (total chlorophyll: TC, antioxidant activity: AA, total phenols: TP, o-quinones: o-q, polyphenol oxidase: PPO, phenylalanine ammonia-lyase: PAL and peroxidase: POD) traits were followed during the trial. Significant relationships among these parameters were assessed by principal component analysis (PCA) in order to find the main traits related to OA, in fresh-cut lettuce. Results from PCA showed that OA was inversely correlated with BI (r=-1.00), DE* (r= -0.98), A (r= -0.94), AA (r= -0.86), TP (r= -0.82), o-q (r= -0.89), and PAL (r= -0.80). Moreover, OA was positively related with RA (r= 1.00) and PPO activity (r= 0.96). Ammonia resulted significantly correlated with the main sensory, physical, chemical and biochemical parameters. Thus, this parameter, with DE* could be used as indicator of the product quality and acceptability in control quality procedures. In conclusion, rating scale used to estimate OA, resulted a valid method to evaluate the iceberg lettuce quality, since it showed significant relationships with the main analytical parameters. (literal)

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