Effect of hydrocooling on the postharvest quality of sweet cherry cv.'Aksehir Napoleon'.
Agar, T.; Kaska, N.; Kibritoglu, A.;
Postharvest physiology, pathology and technologies for horticultural commodities: recent advances. Proceedings of an international symposium held at Agadir, Morocco, 16-21 January 1994. Year: 1995 Pages: 115-119 Ref: 5 ref.
1995
บทคัดย่อ
ABSTRACT :
Fruits were harvested in Uluborlu and brought from the orchards to the Uni-Frutti packinghouses in Mersin at an external temperature of 23.6 deg C and a core temperature of 22.1 deg . Cherries were placed in a hydrocooling unit and cooled with cold water at 2 deg containing a mixture of Benlate [benomyl] and hypochlorite. The internal temperature of the cherries was reduced to 2.9 deg in 16 min. Fruits were then selected and placed in two rooms where the temperature was maintained at 15 deg or 0 deg . Control fruits were not hydrocooled but selected at 15 deg and stored at 0 deg . Cherries which were free from any damage and disorders were selected and graded by size into small, medium and large. To imitate transport conditions to Germany or France or to the UK, cherries were stored for 1 week or 2 weeks at 0 deg C, respectively. Cherries which were taken from the experimental store at weekly intervals were analysed either immediately or after 2 days of additional shelf-life at 20 deg for weight
loss, titratable acidity and TSS. A new, very sensitive fruit flesh firmness and elasticity measuring device (Shoremeter) was used. Physiological disorders and fungal infection were also recorded. Weight loss was reduced in hydrocooled sweet cherries. Moreover, flesh firmness was significantly higher in hydrocooled cherries not only during cold storage but also during shelf-life. Fruits which were graded and selected at 0 deg after hydrocooling were superior in terms of internal and external quality even after 2 weeks of storage and 2 days of shelf-life.