Fruit & Vegetables Storage and Transport Database V1.0

©CSIRO/Sydney Postharvest Lab
Sydney, Australia +61-2-9490-8333
 
 
 
FULL SUMMARY           Printed by Sydney Postharvest Lab. for Sample Viewer on 3 December 1997
 
Cultivar/ Maturity Crop Alternate Names Botanical Name
Shelled Macadamia   Macadamia integrifoia(Maiden & Betche)
    Botanical Family Plant Part
    Proteaceae  Nut

Refrigerated Container / Coolroom Recommendations

Optimum Product Temperature =  0.0 C
Temperature Set Points for
Air Delivery Control = 0.0 - 1.0oC Return Air Control = 1.0 -2.0oC
Ventilation (Air Exchange) Settings for
6 m (20') Containers =   12 m (40') Containers =  
Fresh Air Exchange       
 
Acceptable product temperature at loading into container = -0.5- 5.0oC
Key Properties (For extra information and original references see detailed output)
Storage Time (days)*  Humidity  
% RH		 Freezing Point C Ventilation Rate Storage Time 
Ambient (~20oC)
10 - 14 60 - 75  0.0*   30 -90
*Values taken from Macadamia nut general

Other Properties (For extra information and original references see detailed output)
Ethylene Production Ethylene  
Sensitivity		 Odour  
Effects		 Affected by Odour of Water Loss Rate (%/week)* Compatibility  
with Ice		 Bruising  
Susceptibility
Very low@ Moderate         Very low*
@Maximum rate<4nM ethylene/kg/ha at ~20 C
*   At optimum storage temperature.

Controlled Atmosphere, Respiration (For extra information and original references see detailed output)

Benefit of Controlled or Modified Atmosphere = Moderate
  
Controlled Atmosphere Conditions
Oxygen % Carbon Dioxide % Temp. oC
0 - 1  - 5.0
                                                            Vacuum packed
Respiration (Watts/ tonne)@ Specific heat
0oC 5oC 10oC 15oC 20oC 25oC (kJ/kg/oC)
            0.93
@ 1 Watt/tonne  = 20.4 kCal/ tonne/ day   = 82.1 Btu/ ton/ day  = 73.3 Btu/ 2000lbs/ day
                           = 0.167 mls/CO2/ kg/ hour  = 7.0 umol CO2/ kg/ hour

Compatibility in Mixed Storage (For extra information and original references see detailed output)

Not compatible with crops that Need to be stored above 6 C
Odour taint incompatibility with Pears, apples
 

Seasonable Availability (For extra information and original references see detailed output)

Country Start Season End Season Start Peak End Peak
         
         
 
 

 
TO HOME PAGE                                     Sydney Postharvest Laboratory                                 Revised June  1998  (N. Uddin)