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

2012 ◽  
Vol 23 (2) ◽  
Author(s):  
A. Elhefny ◽  
S. Gyulakhmedov ◽  
S. El-Hefnawi ◽  
M. Gad ◽  
A. Kuliyev
Keyword(s):  
Mangifera Indica ◽  
Controlled Atmosphere ◽  
Controlled Atmosphere Storage ◽  
Phosphofructokinase Activity ◽  
Atmosphere Storage

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.

5332547 Controlled atmosphere storage container

1995 ◽  
Vol 21 (3) ◽  
pp. XVIII
Author(s):  
J. Olson Robert ◽  
Max Liston ◽  
I. Harrison Todd
Keyword(s):  
Controlled Atmosphere ◽  
Storage Container ◽  
Controlled Atmosphere Storage ◽  
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.

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