Effect of individual film wrapping on quality and storage time of mandarin's fruit 'Dancy'.
Saucedo-Veloz, C.; Arana-Errasquin, R.; Chavez-Franco, S.; Perez, A.; Reyes, M. I.;
Postharvest Horticulture Series - Department of Pomology, University of California Year: 1997 Issue: No. 17 Pages: 238-243 Ref: 15 ref.
1997
บทคัดย่อ
Dancy mandarin fruits harvested in January 1991 were individually wrapped in polyolefin film or polyvinylchloride (PVC) film or not wrapped (controls). The fruits were stored in commercial conditions (20 plus or minus 2 deg C; 50-60% RH) for 12 days (controls) or 20 days (wrapped fruits), or in cold storage (5 or 10 deg ) for 4-8 weeks. Water loss was higher from control fruits than from wrapped fruits (4-6 times higher at 20 deg , 6-7 times at 10 deg and 7-9 times higher at 5 deg ). The firmness of control fruits was lower than that of wrapped fruits (4 times lower at 10 deg and 2 times lower at 5 deg ). Wrapped fruits had significantly lower levels of internal percentage CO2 and ethanol levels in juice than control fruits. No off-flavours or undesirable aromas were detected. Wrapping had no effect on internal quality (soluble solids content (SSC), titratable acidity or the SSC:acidity ratio). Colour developed faster in controls. The results show that film-wrapped Dancy mandarins can be kept in
cold storage for up to 8 weeks; the best results were obtained with storage at 5 deg , 85-90% RH.