Agabbio, Mario Carlo Salvatore and D'Aquino, Salvatore and Piga, Antonio <1965- > (1996) Risposta alla frigoconservazione di alcune cultivar di pere estive del germoplasma autoctono. In: Biodiversità e produzioni biologiche: atti del 2. Convegno nazionale, 11 giugno 1996, Matera, Italia. Potenza, Centro interuniversitario per le ricerche, conservazione ed utilizzazione del germoplasma mediterraneo (C.I.G.M.). p. 227-244. Conference or Workshop Item.
The pear has been cultivated in Sardinia since ancient time, and this has resulted in a wide range of germplasm with different organolectic characteristics and adapted to the different ecological conditions of the island. Approximately 100 cultivars are maintained at the CNR research station in Oristano. In this trial we studied the chemical characteristics and the behaviour in storage conditions of the different early ripening cultivars,
since these have a high metabolic activity with respect to winter varieties, which limits the possibility of marketing the fruit far from the production areas.
The fruit of the most interesting early ripening cultivars were harvested at the commercial maturity stage and stored for 1 month at loe and 95% relative humidity (RH), plus 4 or 7 days in simulated shelf-life conditions at 20°C and 75% RH. At each inspection time fruits were subjectively evaluated for sweetness, acidity, astringency, presence of off-flavour, acceptability and judged for internal browning and overall appearange. In addition chemical analysis, including pH, total acidity (TA), total soluble solids (TSS)
and firmness were also carried out.
All the cultivars had good chemical and organolectic characteristics at harvest, but the responce to the storage conditions varied considerably among them. The major cause of loss of quality was the development of internal
browning which became particularly severe as the fruits reached the eating stage The cultivars which gave the best responce were: "Camusina di Sassari", "Bau", "Camusina Grande", "Santa Maria", "Butirra de Austu", "Laconi 6" and "Cauli".
I documenti depositati in UnissResearch sono protetti dalle leggi che regolano il diritto d'autore
Repository Staff Only: item control page