, 2007 ). However, there is no information on the effects of PRD on long-term storage performance of apple fruit and on some fruit quality attributes such as fruit weight loss in storage and internal ethylene concentration (IEC) as an indicator of fruit
lightness (L*), hue angle (h), and chroma (C*) values are reported according to MacGuire (1992) . The fruit weight loss during the postharvest period was determined by weighing the fruits daily and was expressed as a percentage of the initial weight at
treated fruit may be associated with reduced fresh weight loss and ripening during cold storage ( Bai et al., 2005 ; Fan et al., 1999 ). The incidence of ‘Royal Gala’ flesh breakdown increases with increased fruit size but flesh breakdown severity is
surrounding fruit after harvest and during grading, packing, and shipping is considerably less. Fresh peaches transpire, leading to measurable weight loss and eventually resulting in the softening of flesh, the loss of juiciness, and skin shriveling. Weight
overall appearance rating criteria for whole-head lettuce during storage. Weight loss percent was calculated by determining the proportion of loss for each head (n = 3) at each evaluation (2, 4, 6, 8, and 10 d) relative to its initial weight. Weight
Abstract
Composition of yam bean (Pachyrrhizus erosis L. Urb) tubers stored at 22° and 12.5°C was monitored monthly for up to 5 months. A continual loss of moisture occurred in tubers at both storage temperatures—after 4 months tubers stored at 22° lost 14.5% of their original weight; those stored at 12.5° lost 9.6%. A higher respiration rate of 15 to 28 ml·kg–1·hr–1 occurred during the first 2 months of storage at 12.5°. This was nearly double the respiration rate of tubers stored at 22°. Ethylene was not detected at any time. There are a continual breakdown of starch in tubers. After 3 months, tubers stored at 12.5° had one-sixth the harvest content of starch. At 22°, starch declined to two-thirds the harvest content. The decline in starch content at 12.5° was related to an increase in total sugars in the tuber, particularly sucrose. The sucrose content of the tuber stored at 12.5° tripled over a 3-month period. Glucose and fructose levels declined over the same period irrespective of storage temperature. The results suggest a chilling response that led to a sweeter tuber. Titratable acidity was very low, as was total phenols, and both did not change after harvest.
The shrinkage rate of `Marsh' grapefruit (Citrus paradisi Macf.), `Ambersweet' hybrid [(C. reticulata Blanco × C. paradisi Macf. × C. reticulata) × C. sinensis (L.) Osb.] and `Valencia' oranges [C. sinensis (L.) Osb.] was increased 50 % to 150% by washing the fruit with rotary brushes, but was not changed by hand-washing the fruit with cellulose sponges. Internal CO2 increased using both washing methods. Waxed fruit obtained from five Florida packinghouses and cleaned with rotary brushes and waxed had shrinkage rates the same as those of nonwashed controls. Thus, controlling the washing process is important to minimize shrinkage of fresh citrus fruit.
., 1989 ). However, MAP performance is sensitive to temperature and under certain conditions, it can create “off flavor” and decay problems, which negate the potential benefit of reducing weight loss. It has been reported that high carbon dioxide (CO 2
components, and their sources. Weight loss. Weight loss was determined with samples of 10 fruit per treatment. The fruit from each treatment were weighed on Days 0, 1, 4, 7, 10, and 13 of storage. The weight losses are expressed as the
spinach during storage. In addition, Gil et al. (1999) and Ko et al. (1996) reported reduced respiration rate, weight loss, and antioxidant loss on spinach stored in low O 2 concentrations. There is limited data available describing storage