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PRELIMINARY CHARACTERIZATION OF ROMANIAN APPLE CULTIVARS AFTER COLD STORAGE

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Author(s): Militaru Mădălina | N. Branişte | S. Budan | Butac Mădălina | Chiţu Viorica | Diaconu Cosmina

Journal: Scientific Papers of the Research Institute for Fruit Growing Pitesti, Romania
ISSN 1584-2231

Volume: XXVII;
Start page: 42;
Date: 2011;
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Keywords: post-harvest | quality | firmness | soluble solids content

ABSTRACT
Eight Romanian apple (Malus domestica Borkh.) cultivars (Rebra, Rustic, Bistriţean, Auriu de Bistriţa, Goldprim, Ciprian, Irisem, Redix) have been studied for their post-harvest behavior and consumer acceptance in 2008. The main objectives of this study have been the characterization of some physical-chemical parameters (weight, size, firmness, and total soluble solids) that influence fruit quality, before and after cold storage. Apples were submitted to normal air storage during 3 months, at 20C and 80% relative air humidity. Fruit weight varied between 182.5 g (Auriu de Bistriţa cv.) and 122 g (Rustic cv.). Maximum diameter has been registered on the Auriu de Bistriţa and Rebra cultivars (85 and 80 mm, respectively), while Rustic fruit were the thinnest (65 mm). The highest level of refractometric index (18.2º Brix) has been recorded in Redix fruit, moderate (16.4º Brix) in Ciprian fruit and the lowest soluble solids (13.4º Brix) has been acquired in apples from Rustic cultivar. Pulp firmness has been higher (5.9 kgf/cm2) in Redix fruit than in all the other cultivars under study. Ciprian cultivar seems to be of the high quality showing an attractive external appearance and promising storage behavior.
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