Post-harvest Technologies to Maintain Grain and Seed Quality Dieudonne Baributsa Purdue University Regional Knowledge Sharing Meeting Washington, DC November 13 – 15, 2012
Cowpea Production and Trade Source: Langyintuo et al., Adapted dry climate and cash crop - Rich in protein- 23% MT produced yearly-Global - 70% of world production in WCA - Over 500,000 MT traded annually Callosobruchus maculatus Time Initial1 months2 months4 months Population 5 Insects50025,0001,250,000
Pest control methods
Purdue Improved Crop Storage (PICS) 6O 2 + C 6 H 12 O 6 6CO 2 + 6H 2 0
Approach to Extension/Outreach Village training- demonstrations Market demonstrations FBO and Women groups training Cowpea traders and processors Media- Radio, TV, posters, etc. Village Film Cellphone
Target 28,778 villages Reached 30,995 villages by Dec 2011 More than 500 Market demonstrations Over 150,000 households tested bag Extension/Outreach achievements
Approach to PICS bags Supply Chain Semi-wholesalers/ Vendors Manufacturers Distributors/ wholesalers Retailers/ Roaming vendors - Commercial radio messages support vendors - PICS business consultant help vendors improve sales
Achievement Supply Chain From July Jan ,820,000 triple layer bags Roughly 1000 vendors Poor harvest season
Quick adoption….… Profitable Storage Margin: Mali. Price of the PICS bag in Mali~ $2.30
Impact - Increase their income - Avoid health hazard -Improve food security -Improve nutrition Maradi- Niger, 2010 Zinder- Niger, 2010 Ejura- Ghana, 2010
Key constraints to adoption of triple layer bags
Partnership improves Availability of Post- harvest Technologies Challenges S. Chain: Weak legal system Limited capital =>Strengthening social relations CRS- Purdue in Niger, 2011 More partnership needed!
1.Does PICS bagging stop the insect problem? 2. Is grain moisture a problem? 3. Will seed stored in PICS bags germinate? 4. Are processing, cooking time, etc. affected? 5. Would PICS intervention be economical? Research on other Crops- Underway:
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Acknowledgments: Gates Foundation and all partners Dieudonne Baributsa, PhD Purdue University Web: Website :