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State of Palestine
Ministry of Agriculture
G.D. Marketing & Passages
Department of Postharvest Technology
A Trial to Demonstrate Some
Postharvest Principles in the Field
What was tested; brief results
By: Mohammed Almasri
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DEMO 1
Tried Technology: MAP and 1-mcp
Crop: Guava
District: Qalqilia
Demonstration Team: Ayman Alem, Mohammed Abu Saleh,
and Thafir Salhab
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Examined Treatments
1. Applying 1-MCP at 670 ppm
2. Modified Atmosphere Packages (MAP)
3. Control: no applications and no packaging
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1-MCP Application Procedure
3
4
2
5
1
5
Type of MAP used
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Examined quality parameters to
assess the influence of the
different treatments
• Hardness: using hand Pentrometer
• Sweetness (TSS): using Refractometer
• Aroma: by a tasting panel
• Rotting: by visual examination
• Taste: by a tasting panel
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Summary of Results
Percentage of rotting over storage time
Rotting % has decrease in response to 1-mcp and MAP
120
Rotting%
100
80
Control
60
MAP
40
MAP + 1-MCP
20
0
0
3
6
9
13
Days of Storage
16
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Summary of Results
Fruit Hardness
Hardness (Kg per Cm2)
Fruits became harder in response of 1-mcp and MAP
5
4.5
4
3.5
Control
3
MAP
2.5
2
MAP + 1-MCP
1.5
1
0.5
0
3
6
9
13
Days of storage
16
9
DEMO 2
Tried Technology: MAP
Crop: Herbs
•
•
•
•
•
Chives
Rosemary
Thyme
Mint
Coriander
District: Tubas
Demonstration Team: Raed Bsharat,
Amer, and Zafaf Abu Shehadeh
Sulaiman Abu
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Examined treatments (Types of
MAP)
Blue liners
Blue line liners
Transparent liners + 1-mcp
Green line liners
‫‪11‬‬
‫االكياس باللون‬
‫الكحلي‬
‫االكياس باللون‬
‫األخضر‬
‫االكياس باللون‬
‫األزرق‬
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Examined quality parameters to
assess the influence of the
different treatments
1. Water loss
2. Decay by visual examination
3. Chloroses by visual examination
4. Leaf chlorophyll content
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Summary of Results
• Best quality was obtained with the Blue liner
then Blue line liner the transparent then Green
line liners
• Longest storage period before exporting for all
tested herbs was 1.5 Week before any losses
took place.
• Results indicated that Chives can be kept in
good quality for up to 2 Week.
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DEMO 3
Tried Technology: Proper packing and carefull handling
Crop: Tomato
District: Tulkarem
Demonstration Team: Alia Shahed, Albara’ Al Ghool, and
Shadi Salman
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Treatments
A: Plastic boxes and rough handling
B: Carton boxes and rough handling
C: Plastic boxes and careful handling
D: Carton boxes and careful handling
Data was recorded at 3 stages:
– Moment of arrival to the store
– After 1 week of storage
– After 2 weeks of storage
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Examined quality parameters to
assess the influence of the
different treatments
• Fruit hardness
• Bruises:
– Scale: 1: No bruises, 2: few bruises, 3: much bruises
• Wounds:
– Scale: 1: No wound, 2: few wound, 3: much wound
• Decay:
– Scale: 1: No decay, 2: few decay, 3: much decay
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Plastic boxes and rough handling
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Plastic boxes and careful handling
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Similar transportation conditions
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Summary of Results
• Results have shown that:
– higher levels of decay (0.85) occurred in response to using
carton boxes and rough handling
– Minimum levels of decay (0.11) occurred in response to
using carton boxes and careful handling
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DEMO 4
Tried Technology: MAP with cooling
Crop: Jews mallow (Fresh cut leaves)
District: Jineen, Kofr Dan
Demonstration
Hakam Salah
Team:
Naser
Abbadi,
Jawad
Zakarneh,
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Treatments
L1C4:
4 º C + Herbs liner
L2C4:
4 º C + Ordinary liner (not sealed)
L1C10: 10 º C + Herbs liner
L2C10: 10 º C + Ordinary liner (not sealed)
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Examined quality parameters to
assess the influence of the
different treatments
Weight loss
Chloroses:
– 1: yellow – 5: Green
Dryness;
– 1: dry – 5: Fresh
• Decay
– 1: no decay – 5: full decay
• Chlorophyll content (in 10 g samples)
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Summary of Results
• Results have shown significantly better quality
at lower temperature (4ºC) particularly in the
first 2 weeks
• However, more chilling injuries occurred at this
temperature
• The use of Herbs liner has decreased decay
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Summary of Results
D
e
c
a
y
weeks