scholarly journals (195) Optimizing Storage Conditions for Fresh Cranberries

HortScience ◽  
2006 ◽  
Vol 41 (4) ◽  
pp. 1050C-1050
Author(s):  
Charles F. Forney ◽  
Stephanie Bishop ◽  
Michele Elliot ◽  
Vivian Agar

Extending the storage life of fresh cranberries (Vaccinium macrocarpon Ait.) requires an optimum storage environment to minimize decay and physiological breakdown (PB). To assess the effects of relative humidity (RH) and temperature on storage life, cranberry fruit from four bogs were stored over calcium nitrate, sodium chloride, or potassium nitrate salts, which maintained RH at 75%, 88%, and 98%, respectively. Containers at each RH were held at 0, 3, 5, 7, or 10 °C and fruit quality was evaluated monthly for 6 months. Both decay and PB increased with increasing RH in storage. After 6 months, 32%, 38%, and 54% of fruit were decayed and 28%, 31%, and 36% developed PB when stored in 75%, 88%, and 98% RH, respectively. The effects of RH continued to be apparent after fruit were removed from storage, graded, and held for 7 days at 20 °C. The decay of graded fruit after 4 months of storage in 75%, 88%, or 98% RH was 10%, 13%, and 31%, respectively, while PB was 12%, 12%, and 17%, respectively. Fresh weight loss decreased as RH increased averaging 1.9%, 1.4%, and 0.7% per month for storage in 75%, 88%, and 98% RH, respectively. Fruit firmness was not affected by RH. Storage temperature had little effect on decay. However, PB was greatest in fruit stored at 10 °C, encompassing 55% of fruit after 5 months of storage. When graded fruit were held an additional 7 days at 20 °C, decay and PB were greater in fruit previously stored at 0 or 3 °C than at 5, 7, or 10 °C. Fresh weight loss increased as storage temperature increased, averaging 0.8%, 1.0%, 1.3%, 1.7%, and 1.9% per month at 0, 3, 5, 7, and 10 °C, respectively. Fruit firmness decreased during storage, but was not affected by storage temperature. To maximize storage and shelf life, cranberry fruit should be stored in a RH of about 75% at 5 °C.

HortScience ◽  
2008 ◽  
Vol 43 (2) ◽  
pp. 439-446 ◽  
Author(s):  
Charles F. Forney

Studies were conducted over three seasons to determine the relationship of temperature and humidity on the storage life of fresh cranberry (Vaccinium macrocarpon Aiton) fruit. Each year, cranberries harvested from four commercial bogs were stored at temperatures ranging from 0 to 10 °C in combination with relative humidities (RH) ranging from 75% to 98%. Fruit were stored under these conditions for up to 6 months and were evaluated monthly for marketability, decay, physiological breakdown, weight loss, and firmness immediately after removal and after an additional week at 20 °C. The percentage of marketable fruit declined substantially over time in all storage conditions with 41% to 57% becoming unmarketable after 2 months as a result of both decay and physiological breakdown. Relative humidity had a greater effect on fruit storage life than temperature and after 5 months, the amount of marketable fruit stored in high (98%) and medium (88%) RH was 71% and 31% less than that stored in low (75% to 82%) RH. Rates of fresh weight loss increased as RH in storage decreased and was 0.41%, 0.81%, and 0.86% per month in fruit stored in high, medium, and low RH, respectively. Fruit firmness was not significantly affected by RH. The effects of storage temperatures ranging from 0 to 7 °C on marketable fruit after 2 to 5 months of storage were not significant. Only fruit stored at 10 °C consistently had fewer marketable fruit when compared with fruit stored at lower temperatures. Storage temperature had no significant effect on decay incidence. However, physiological breakdown was greatest in fruit stored at 10 °C. Rates of fresh weight loss increased with storage temperature, ranging from 0.35% to 1.17% per month for fruit stored at 0 to 10 °C, respectively. Contrary to previous reports, no evidence of chilling injury was found in cranberry fruit stored at 0 °C. Results suggest that cranberry fruit should be stored at 0 to 7 °C and 75% to 82% RH to retain marketable fruit.


1986 ◽  
Vol 66 (3) ◽  
pp. 617-626 ◽  
Author(s):  
D. H. WEBSTER ◽  
P. D. LIDSTER

Phosphate compounds (NH4H2PO4, KH2PO4 and CaH4(PO4)2 in 1982; NH4H2PO4 in 1983) applied to McIntosh apple trees as six foliar sprays at weekly intervals starting 4 wk after bloom, increased leaf and fruit P, decreased loss of firmness under some storage conditions and decreased incidence of low-temperature storage disorders. Phosphate sprays improved firmness retention of apples stored in either 5% CO2 plus 3% O2 or 0.7% CO2 plus 1% O2 in 1982 and maintained fruit firmness during a simulated shelf life at 20 °C for apples stored at 0 °C. Firmness retention at 20 °C of the 1983 crop was improved by monobasic ammonium phosphate regardless of storage temperature. Apple samples from unsprayed control trees had mean phosphorus concentrations of 85.4 and 94.4 ppm fresh weight in 1982 and 1983, respectively (whole fruit less seeds and stems).Key words: Apple, fruit phosphorus, low temperature breakdown, core flush


1992 ◽  
Vol 32 (4) ◽  
pp. 529 ◽  
Author(s):  
A Klieber ◽  
RBH Wills

Asparagus (Asparagus officinalis L. cv. UC 157) was harvested in 3 seasons over 3 months and held at various temperatures, controlled atmospheres and relative humidities, and in dips, to optimise storage conditions. The optimum storage temperature was l.5�C, and precooling needed to be applied with the shortest possible delay after harvest. However, asparagus became more sensitive to chilling and lost 3 of 4 weeks of storage life and 2 of 5 days of shelf life at 20�C as the season progressed. Increasing the relative humidity from recommended 94 to 100% reduced weight loss but not quality, and wetting of spears during cooling did not reduce quality provided butt rots were controlled by dipping asparagus butts in saturated calcium hypochlorite. Continuous storage of spears with their butt in aqueous solutions reduced quality due to rotting, splitting and bending, but controlled atmospheres of 8-15% CO2/18-19% O2 extended storage life at l.5�C by 1 week and shelf life at 20�C by 2 days.


HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 520d-520
Author(s):  
Oswaldo Valor ◽  
Juan E Manzano

Mango fruits `Criollo de Bocado' harvested at the mature-green stage were treated with a hydrothermic treatment of 55 °C for 3 min and stored for 20 days to temperatures of 10 ± 2, 15 ± 2, and 28 ± 2 °C. A randomized design 2 × 3 × 4 with three replications was used. Physical parameters such as color (L*, a*, b*), firmnness, and fresh weight loss were studied. Results reported that mango fruits stored at 10.2 and 15.2 °C showed the highest firmness values. Skin color changed very fast during the first storage days, while pulp color required more time to achieve mature ripe color. Fresh weight loss tended to increase with storage time and with high storage temperature. The lowest storage temperture retarded softening in mango fruits and firmnness reached the highest values.


1990 ◽  
Vol 30 (5) ◽  
pp. 693 ◽  
Author(s):  
ME Edwards ◽  
RM Blennerhassett

Three trials were undertaken to study storage conditions and handling procedures required to maximise the postharvest storage life of honeydew melons (Cucumis melo L. var. inodorus Naud.).Honeydew melons treated with chlorine (1000 mg/L), benomyl (250 mg/L) + guazatine (500 mg/L), shrink wrap (17 ym Cryovac XDR film), Semperfresh, wax, or combinations of these treatments were stored at 4 or 8�C, for 4 or 6 weeks. Benomyl plus guazatine reduced the development of storage rots associated with Alternaria and Fusarium spp. The use of shrink wrap and wax reduced water loss by melons but increased fungal infection in some cases. Shrink wrapping combined with the fungicide treatment effectively reduced the incidence of fungal breakdown in the storage period for up to 4 weeks. Wax coating with full strength Citruseal wax caused anaerobic tissue breakdown. Melons were affected by chilling injury at 4�C. Control of bacterial rots with benomyl + guazatine or with chlorine was variable. Semperfresh did not reduce the incidence of fungal breakdown or water loss from the melons. The results indicate that storage of honeydew melons for 4 weeks at 8�C by pretreating with fungicide is possible but the melons soften and rot after 6 weeks, making them unsaleable. Four weeks should be adequate to allow for sea freighting of honeydew melons to markets in South East Asia. Further research is required to determine the optimum storage temperature for honeydew melons.


HortScience ◽  
1994 ◽  
Vol 29 (7) ◽  
pp. 737f-737
Author(s):  
P. Perkins-Veazie ◽  
J.K. Collins ◽  
J.R. Clark

The storage life of blackberry fruit is generally `2 to 3 days when stored at 1C. This study was done to determine the maximum storage life among erect blackberry cultivars, and to determine storage temperature effects on storage life. Shiny black fruit from `Navaho', `Arapaho', and `Shawnee' cultivars were stored at 2C, 5C, or 10C for 20, 14, and 7 days, respectively. At any temperature. only 10-20% of `Navaho' fruit had decay, while 30-50% of `Arapaho' and 40-70% of `Shawnee' fruit had decay. Weight loss was 3-5% depending on temperature and was not different among cultivars. Soluble solids concentration did not change during storage but titratable acidity decreased in all cultivars for fruit held at all temperatures. Anthocyanin content increased during storage in `Shawnee' and `Navaho' but not in `Arapaho' fruit. Results indicate that `Navaho' fruit have a longer shelflife than other blackberry cultivars.


2020 ◽  
Vol 36 (1) ◽  
Author(s):  
Leonardo Ferreira Lopes ◽  
André Freire Cruz ◽  
Mariana Coelho de Sena ◽  
Luiz Eduardo Bassay Blum

This study assessed the effect of acetylsalicylic acid (ASA) and 1-methylcyclopropene (1-MCP) to control anthracnose in papaya (cultivar Golden). Disinfested-surface fruits were inoculated with Colletotrichum gloeosporioides and then the compounds were applied. The lesion diameters and the physical-chemical properties were analyzed. Assays were carried out with ASA and 1-MCP targeting the control of anthracnose and maintenance of the fruit’s physical-chemical properties. The effect of ASA (20 mM; 20 min) on reducing lesion diameter occurred when applied before inoculation. Fruits treated with 1-MCP (300ppb) for 12 h showed a smaller lesion diameter than control. For the physical-chemical analysis, fruit treated with 1-MCP (200; 300 ppb; 12h) maintained fruit firmness, delayed fruit ripening and fruit fresh weight loss.


2003 ◽  
Vol 13 (2) ◽  
pp. 267-272 ◽  
Author(s):  
Charles F. Forney

High-quality cranberry (Vaccinium macrocarpon) fruit are required to fulfil the growing markets for fresh fruit. Storage losses of fresh cranberries are primarily the result of decay and physiological breakdown. Maximizing quality and storage life of fresh cranberries starts in the field with good cultural practices. Proper fertility, pest management, pruning, and sanitation all contribute to the quality and longevity of the fruit. Mechanical damage in the form of bruising must be minimized during harvesting and postharvest handling, including storage, grading, and packaging. In addition, water-harvested fruit should be removed promptly from the bog water. Following harvest, fruit should be cooled quickly to an optimum storage temperature of between 2 and 5 °C (35.6 and 41.0 °F). The development of improved handling, refined storage conditions, and new postharvest treatments hold promise to extend the storage life of fresh cranberries.


HortScience ◽  
1991 ◽  
Vol 26 (5) ◽  
pp. 492d-492
Author(s):  
P. Perkins-Veazle ◽  
J.K. Collins

The effects of retail-display packaging on strawberry fruit quality were studied using freshly harvested `Cardinal' strawberries. Fruit free from blemishes and disease were placed into plastic vented boxes, covered with vented plastic lids or plastic wrap, and placed at 1 and 5C overnight One-half of the treatments were removed from coolers, held at 25C for eight hours, returned to the coolers and evaluated over a 15-day storage period. The plastic overwrap greatly decreased weight loss during 15 days of storage; carbon dioxide reached 0.8 and 2% per mg fresh weight at 1 and 5C, respectively. Type of cover did not affect overall appearance or disease ratings. Exposure of fruit to 25C for eight hours led to no loss of overall quality. Storage of fruit at 50C led to greater disease incidence and loss of quality. The respiration rate of fruit warmed at 25C reached equilibrium after six hours, regardless of initial storage temperature. Fruit in vented dome-lid boxes had more weight loss than plastic-wrapped boxes at both temperatures.


2017 ◽  
Vol 16 (2) ◽  
Author(s):  
Soesiladi E. Widodo ◽  
Kuswanta F. Hidayat ◽  
Zulferiyenni Zulferiyenni ◽  
Sherly I. Annisa

The research was aimmed at studying the effects of (1) single application AVGs,plastic wrappings, and storage temperatures, (2) interactions among AVGs andplastic wrappings, AVGs and storage temperatures, and plastic wrappings andstorage temperatures, and (3) interactions among AVGs, plastic wrappings, andstorage temperatures in extending fruit self-life and maintain qualities of‘Mutiara’guava fruits. The research was arranged in a completely randomized designin 2 x 2 x 2 factorial with three replications. The first factor was AVGs (with 1,25ppm and without AVG), the second factor was plastic wrappings (without and withone layer of plastic wrapping), and the third factor was storage temperature (a coldtemperature of 21, 53 ºC and a room temprature of 26,57 ºC). The result showed that(1) the application of AVG 1,25 ppm did not significantly affect fruit self-life, fruitfirmness, fruit weight loss, ºBrix, acid contens, and sweetness of ‘Mutiara’guava’fruits, (2) storage at cold temprature of 21, 53 ºC did not significantly affect fruit self-life, fruit firmness, fruit weight loss, ºBrix, acid contens, and sweetness of‘Mutiara’guava’ fruits, (3) the application of plastic wrapping was able to extend fruitself-life by 17 days longer than without plastic wrapping and supressed fruit weightloss of ‘Mutiara’guava, but accelerated softening and not able to maintain ºBrix, andalso did not significantly affect acid contens, and sweetness of ‘Mutiara’guava fruits,(4) there were no interaction effects among AVGs with plastic wrappings, AVGs withcold tempratures, and plastic wrappings with cold tempratures on self-life, fruitfirmness, fruit weight loss, ºBrix, acid contens, and sweetness of ‘Mutiara’guavafruits, and (5) there were no interaction effects among AVGs, plastic wrappings, andcold temperatures on fruit self-life, fruit firmness, fruit weight loss, ºBrix, acidcontens, and sweetness of ‘Mutiara’ guava fruits.


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