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  • 1
    Electronic Resource
    Electronic Resource
    Modified Atmosphere Packaging Maintains Quality of Table Grapes (2003)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 68 (2003), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Table grapes were packed in either nonperforated polypropylene or perforated polypropylene films and stored at 1 °C for 53 d. Nonperforated polypropylene packages had the highest CO2 and lowest O2 contents, with reduced weight losses and increased berry and skin firmness. Soluble solids concentration increased in unwrapped control grapes as a consequence of the higher weight losses, whereas no significant differences were found for titratable acidity. Both films were equally effective in maintaining skin color, whereas control grapes showed a reduction of color. The highest scores in sensory analyses for crunchiness, juiciness, sourness, and quality were given to nonperforated polypropylene packages after 18 d of storage, and good visual aspect and no off-flavor were detected after 53 d of cold storage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.2003.tb12339.x
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  • 2
    Electronic Resource
    Electronic Resource
    Effects of Postharvest Putrescine Treatment on Extending Shelf Life and Reducing Mechanical Damage in Apricot (2002)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 67 (2002), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: : Apricots (Prunus armeniaca L. cv Mauricio) harvested at commercial ripening stage were treated with putrescine (1 mM), then mechanically damaged with a 25 N force and stored at 10 °C for 6 d. Putrescine treatment increased fruit firmness and reduced the bruising zones caused by the mechanical damage. Putrescine-treated fruits (both damaged and nondamaged) showed different physiological behavior than controls. Color change, weight loss, ethylene emission, and respiration rate were reduced in putrescine-treated fruits. The most remarkable effect of the mechanical damage was the significant increase in spermidine concentrations found after the compression in control apricots, which could be considered as a physiological marker of mechanical damage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.2002.tb08710.x
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  • 3
    Electronic Resource
    Electronic Resource
    Plum Storability Improved after Calcium and Heat Postharvest Treatments: Role of Polyamines (2002)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 67 (2002), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: : Plums were treated with calcium or heat (45°C) and then stored at 2°C for 28 d. Fruit firmness, ethylene, and CO2 production rates were investigated. The concentrations of endogenous polyamines (free, conjugated-soluble, and cell wall-bound) were also studied. Both treatments improved fruit firmness by increases in Magness-Taylor force and force-deformation ratio, and decreases in flesh deformation. No differences were found in either ethylene or respiration rate production among fruits due to the low storage temperature. Calcium-treating plums increased the conjugated forms of putrescine (conjugated-soluble and cell wall-bound), which are related to higher firmness. Heat-treated plums mainly increased cell wall-bound spermidine, inducing a greater cell wall stability and plum firmness.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.2002.tb08778.x
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  • 4
    Electronic Resource
    Electronic Resource
    Postharvest Gibberellin and Heat Treatment Effects on Polyamines, Abscisic Acid and Firmness in Lemons (1998)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 63 (1998), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Lemons at two ripening stages were vacuum-infiltrated with 100 ppm of gibberellin A3 (GA3) or heat-treated at 45°C, and then stored at 15°C for 3 wk. Both treatments increased fruit firmness either in stage 1 or in stage 2. Also, the levels of free putrescine and spermidine in the skin were higher in treated lemons than in controls but spermine concentration did not show significant differences, in fruits of either stage. GA3 treatment was the most effective in retarding the color change during storage, especially in stage 1 fruits, which was related to the lowest levels of abscisic acid found.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1998.tb15796.x
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  • 5
    Electronic Resource
    Electronic Resource
    Exogenous Polyamines and Gibberellic Acid Effects on Peach (Prunus persica L.) Storability Improvement (2000)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 65 (2000), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Peaches (Prunus persica L., cv. Babygold 6) harvested at the stage of commercial ripening were pressure-infiltrated with putrescine (1 mM) or GA3 (100 mg L-1) and then stored at 2°C for 14 d. Both treatments increased fruit firmness, putrescine-treated peaches being significantly firmer than control ones. Treatments were also effective in reducing the susceptibility of the fruit to be damaged by mechanically compression with lower volume and surface of the damage zone. Ethylene emission and the respiration rate were reduced in treated fruits, which reflects a delay of the ripening process. The effects of the mechanical stress could be related to increased spermidine levels, rather than ethylene emission and respiration rate during storage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.2000.tb15995.x
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