LOW TEMPERATURE CONTROLLED ATMOSPHERE STORAGE FOR TREE-RIPE MANGOES (MANGIFERA INDICA L.)

2000 ◽  
pp. 447-458 ◽  
Author(s):  
R.J. Bender ◽  
J.K. Brecht ◽  
S.A. Sargent ◽  
D.J. Huber
Keyword(s):  
Low Temperature ◽  
Mangifera Indica ◽  
Controlled Atmosphere ◽  
Controlled Atmosphere Storage ◽  
Temperature Controlled ◽  
Atmosphere Storage

Changes in ACC and conjugated ACC levels following controlled atmosphere storage of nectarine

2005 ◽  
Vol 45 (12) ◽  
pp. 1635 ◽  
Author(s):  
A. Uthairatanakij ◽  
P. Penchaiya ◽  
B. McGlasson ◽  
P. Holford
Keyword(s):  
Low Temperature ◽  
Cold Storage ◽  
Low Temperatures ◽  
Prunus Persica ◽  
Chilling Injury ◽  
Controlled Atmosphere ◽  
Controlled Atmosphere Storage ◽  
Gaseous Composition ◽  
Storage Atmosphere ◽  
Atmosphere Storage

Low temperature disorders of nectarines are thought to be expressions of chilling injury. Chilling injury is a form of stress usually associated with increased synthesis of ethylene and its immediate precursor, aminocyclopropane-1-carboxylic acid (ACC). However, other mechanisms for the development of chilling injury have been proposed. To help determine the nature of the processes leading to chilling injury in nectarines (Prunus persica) and how the gaseous composition of the storage atmosphere effects the development of low temperature disorders, levels of ACC and conjugated ACC were measured in fruit of the cv. Arctic Snow. These compounds were measured in fruit ripened at 20°C immediately after harvest, in fruit on removal from cold storage and in fruit ripened at 20°C following cold storage. During storage, fruit were kept at 0°C in the 4 following atmospheres: air; air + 15% CO2; air + 15 µL/L ethylene; and air + 15% CO2 + 15 µL/L ethylene. Concentrations of ACC remained low in all treatments and no significant changes in ACC levels due to added ethylene or CO2 were observed. Concentrations of conjugated ACC were about 10-times that of ACC and again were not influenced by the composition of the storage atmosphere. No significant changes in either ACC or conjugated ACC were observed until after flesh bleeding, the major symptoms of low temperature disorder expressed in these fruit, had begun to appear. It was concluded that disorders in nectarines stored at low temperatures are not a stress response involving a disruption of ethylene metabolism but may be associated with differential changes in the metabolism of enzymes associated with normal ripening.

scholarly journals Effect of Controlled Atmosphere Storage (CAS) on Phosphofructokinase Activity in Mango (Mangifera indica L.) cv. Keitt

2012 ◽  
Vol 23 (2) ◽  
pp. 15-28
Author(s):  
A.A. Elhefny A.A. Elhefny
Keyword(s):  
Mangifera Indica ◽  
Nitrogen Concentration ◽  
Anaerobic Respiration ◽  
Controlled Atmosphere ◽  
Controlled Atmosphere Storage ◽  
Long Term Storage ◽  
Phosphofructokinase Activity ◽  
Postharvest Ripening ◽  
Nonequilibrium Reactions ◽  
Atmosphere Storage

A controlled atmosphere (CA) is an agricultural storage method. It is an atmosphere in which oxygen, carbon dioxide and nitrogen concentration as well as temperature and humidity are regulated. Glycolysis is the basis of both anaerobic respiration and aerobic respiration, and it occurs in nearly all organisms. It is regulated by three enzymes catalyzing nonequilibrium reactions: Hexokinase, phosphofructokinase, and pyruvate kinase.In this work we studied the effect of controlled atmosphere storage (CAS) of mango at 13°C on the activity of phosphofructokinase (PFK) and on fruit quality. This study was carried out on mango fruits (Mangifera indica L.) cv. Keitt. The storage of fruits under the CA retarded ripening and did not affect the quality attributes of Keitt mango. There was a significant decreasing in the activity of PFK as compared with control under (CAS) used in this work. These results indicate a potential for the application of CA for postharvest ripening control of mango. The optimal CA for long-term storage of "Keitt" mango at 13°C is (3% O2 +6% CO2+ 91% N2); under these conditions the storage life of mango can be extended up to 10 weeks.

Effect of fungicides and controlled-atmosphere storage on LTB rot of apples

1995 ◽  
Vol 75 (2) ◽  
pp. 515-520 ◽  
Author(s):  
P. L. Sholberg ◽  
P. Haag ◽  
D. A. Gaudet
Keyword(s):  
Low Temperature ◽  
Sodium Hypochlorite ◽  
Mycelial Growth ◽  
Potato Dextrose Agar ◽  
Controlled Atmosphere ◽  
Pome Fruit ◽  
Controlled Atmosphere Storage ◽  
Thiophanate Methyl ◽  
Colony Diameter ◽  
Atmosphere Storage

Inhibition of mycelial growth of the low-temperature basidiomycete (LTB) strain LRS 233, which causes LTB rot of pome fruit, was evaluated on potato dextrose agar amended with 15 fungicides. Flusilazole and triadimefon were the most effective fungicides, reducing growth by 98.2 and 71.5%, respectively, when used at 1 μg mL1. Mancozeb was effective at a higher concentration, reducing growth 96.9% when used at 100 μg mL1. In orchard tests, dodine, metiram, sodium hypochlorite and ziram reduced LTB rot of Spartan apples in controlled-atmosphere (CA) storage in 1986–1987 and 1988–1989. Flusilazole and imazalil were also effective, but thiophanate-methyl was ineffective in controlling LTB rot. Flusilazole, propiconazole and myclobutanil effectively reduced the incidence of LTB rot of inoculated apples, while mancozeb and metiram were ineffective. The LTB fungus grows more slowly in CA storage than in air. After 28 d in CA storage, the average colony diameter and weight of three LTB strains were reduced 25.5 and 65.7%, respectively, compared with air storage. Key words: Coprinus rot, postharvest, storage, control

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