Tese
Manejo da umidade relativa do ar durante o armazenamento e sua relação com o amadurecimento e distúrbios fisiológicos em frutas
Fecha
2012-03-16Registro en:
PINTO, Josuel Alfredo Vilela. Management of relative humidity of the air during storage and its relation to ripening and physiological disorders in fruits. 2012. 94 f. Tese (Doutorado em Agronomia) - Universidade Federal de Santa Maria, Santa Maria, 2012.
Autor
Pinto, Josuel Alfredo Vilela
Institución
Resumen
Many factors influence the occurrence of physiological disorders in stored fruits, the relative
humidity (RH) is one of the main. The low RH dehydrates the fruits and the high one can
cause physiological disorders. Thus to improve the determination and the control of humidity
during storage, experiments were conducted on apples, peaches, grapes, guava and Murcott
aiming at: quantifying the appropriate level of mass loss for the best quality post storage of
these fruits; quantifying the mass loss of apples, peaches and other fruits due to the relative
humidity in which they were exposed. According to the results, in Royal Gala apples, the
induction of 4% of mass loss in 30 days (initial) or throughout the storage period (linear)
prevents the occurrence of physiological disorders. In 'Fuji' apples, the development of
breakdown and pulp crack occurs most frequently when the fruits are stored in high relative
humidity, higher than 95%. In 'Eragil' peaches, stored for 21 days at 0.5 °C, having 4, 5, 6 and
7% of mass loss, it was verified that the increase in mass loss leads to an increase in pulp
firmness, woolliness and reduction in juiciness. Furthermore, in the storage conditions used
when executing the experiment, the intensity of daily mass loss of species is increasing in the
following order: apple, grape, Murcott, guava and peach.