Quality evaluation of local apple varieties: physicochemical and antioxidant proprieties at harvest and after cold storage
Laen...
Kuupäev
2017
Kättesaadav alates
Autorid
Bartolini, S.
Ducci, E.
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
A wide apple germplasm is present in Italy in which numerous local genotypes of
specific cultivation environment have to be still evaluated for fruit quality attributes. This is the
case of a long-established fruit area located in central Italy (Tuscany) where several ancient apple
varieties survive with the perspective to be re-introduced for their excellent quality. The objective
of this work was to determine over a 2-year period the physicochemical traits, total antioxidant
capacity (TAC), and polyphenols (TP) content of three old local apple varieties: ‘Paganina’,
‘Paradisa’ and ‘Rosa’. These characteristics were also assessed after 90 and 150 days at 4 °C cold
storage, in normal atmosphere refrigerated cellars. For comparison purpose, the commercial apple
cultivar ‘Fuji’ was considered. In general, the old varieties showed valuable quality properties,
particularly due to a greater antioxidant power of fruits, although a variability between the two
crop seasons, characterized by different weather conditions, was observed. After a dry summer,
‘Rosa’ showed very high TAC and TP values (2-fold higher than other varieties) that, after longperiods
of cold storage, markedly decreased. These losses were not so noticeable in the others,
suggesting a tendency to maintain a major stability during storage. These findings could meet the
preference of demanding consumers for healthier foods who appreciate fresh fruits with
protective properties by free radicals scavenging activity. Moreover, farmers who are focused on
nearby and niche markets could have interesting in these local varieties to promote their
valorization.
Kirjeldus
Article
Märksõnad
Malus domestica Borkh, antioxidant properties, pomological traits, post-harvest, storability, articles