aga 2012__ presentation by inge brouwer
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Breakout group 2 on food Staples__ "Improved Nutrition through STAPle foods in Africa (INSTAPA)"TRANSCRIPT
INSTAPA
Improved Nutrition through STAPle
foods in Africa
Inge D Brouwer
Division of Human Nutrition, Wageningen University
Global Donor Platform for Rural Development
Novel staple food-based strategies to improve
micronutrient status for better health in Africa
31 January 2013
Inge D. Brouwer
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Variety Fe (ppm) Zn (ppm) Grain yield
(g/m2) Gamo* 39.8 19.3 195 Fada* 39.7 18.4 197 Mona* 38.9 20.7 227 Yougo* 37.4 18.9 194 Lata 37.1 19.1 173 Tieble 37.0 20.7 167 Mara* 36.8 17.6 200 Massa* 34.7 17.7 214 Tokotigui 32.6 20.3 153 Sawaba 31.3 18.4 149 Tanko 31.2 18.9 149 Yebele 31.1 20.1 136 Yamba 31.1 17.9 155 Wanti 30.5 18.1 159 Sewa* 29.5 16.5 218 Sigui kumbe* 27.6 14.2 201
Mean Fe/Zn content of
sorghum varieties
Hybrids cover the entire range from low to high Fe/Zn
contents
Hybrids did not significantly exceed “Tieble” (local
variety) for Fe/Zn contents
Fe/Zn content still far from desirable levels
Conventional selection & breeding cannot fill the gab
Should varieties with low Fe/Zn and high yield be
released and disseminated?
22-26 June 2009
Inge D. Brouwer
4
Improvement of traditional dishes increased
Zn, Fe and vitamin A content
Bioavailability of Fe and Zn
No difference between in quantity consumed by
children
Need for proof of principle
• Edible root crop
• Extremely drought resistant
• Carbohydrates, calcium
• Staple food for 70 mln people
• Yellow varieties from Amazon
• Introduction in Africa by IITA, Nigeria
• Crop cycle: 10-12 mo
• 11 varieties selected (7 – 12 ppm β-carotene)
Cassava
31 January 2013
Inge D. Brouwer
6
Acceptability: sensory and cultural
• Difference in taste
• Preference for yellow cassava
• Reasons:
• attractive colour
• sweet taste
• soft texture
• Cultural acceptability:
• 100% intention to consume
• Health knowledge and worries on
colour, taste, texture and
bitterness
Discrimination test
Preference test
Inge D. Brouwer
Proof of principle: efficacy trial
Inge D. Brouwer 7
Yellow cassava +
placebo
White cassava +
placebo
White cassava +
beta-carotene
supplement
18 weeks (112 days)
Schoolc
hild
ren w
ith V
itam
in A
deficie
ncy Cassava consumed (gram) 367
β-carotene in cassava (µg/100 gr) 394
β-carotene intake (µg/day) 202 (45-73% EAR)
Cassava consumed (gram) 364
β-carotene intake (µg/day) 5 (1-2% EAR)
Cassava consumed (gram) 361
β-carotene in supplement (µg) 200
β-carotene intake (µg/day) 205 (46-75% EAR)
Euronews documentary on INstapa
31 January 2013
Acknowledgements
• ICRISAT, Mali:
• Eva Weltzien, Marjolein
Smit, Vera Lugutuah
• IITA, Nigeria:
• Bussie Maizya, Norbert
Maroya
• KARI, Kenya:
• Joseph Kamau,
• IFPRI/HarvestPlus:
• Erick Boy, Howarth Bouis
• UNK, Kenya:
• Alice Mwangi, Gloria Mbera
• UAC, Benin:
• Romain Dossa (†), Evariste
Mitchikpe
• WU, Netherlands:
• Elise Talsma, Alida Melse,
Hans Verhoef, Lucy Elburg
31 January 2013
Inge D. Brouwer
The project was realized in the framework of INSTAPA Project, funded by the European Union’s
Seventh Framework Programme [FP7/2007-2013] under grant agreement nr 211484
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