1 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 2 DEMO 1 Tried Technology: MAP and 1-mcp Crop: Guava District: Qalqilia Demonstration Team: Ayman Alem, Mohammed Abu Saleh, and Thafir Salhab 3 Examined Treatments 1. Applying 1-MCP at 670 ppm 2. Modified Atmosphere Packages (MAP) 3. Control: no applications and no packaging 4 1-MCP Application Procedure 3 4 2 5 1 5 Type of MAP used 6 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 7 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 8 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 10 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 12 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 13 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. 14 DEMO 3 Tried Technology: Proper packing and carefull handling Crop: Tomato District: Tulkarem Demonstration Team: Alia Shahed, Albara’ Al Ghool, and Shadi Salman 15 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 16 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 17 Plastic boxes and rough handling 18 Plastic boxes and careful handling 19 Similar transportation conditions 20 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 21 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, 22 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) 23 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) 24 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 25 Summary of Results D e c a y weeks
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