Sampling Strategies and Variability in Fruit Pulp Micronutrient Contents of West and Central African Bananas and Plantains (Musa Species)

Davey, M W and Stals, E and Ngoh-Newilah, G and Tomekpe, K and Lusty, C and Markham, R and Swennen, R and Keulemans, J (2007) Sampling Strategies and Variability in Fruit Pulp Micronutrient Contents of West and Central African Bananas and Plantains (Musa Species). Journal of Agricultural and Food Chemistry, 55 (7). pp. 2633-2644.

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The variability in fruit micronutrient contents in a selection of Central and West African Musa varieties cultivated under standardized field conditions was studied. Analysis of the within-fruit, within-hand, and within-plant as well as the between-plant variations demonstrated that both provitamin A carotenoids (pVACs) and mineral micronutrient (Fe, Zn) contents vary significantly across all sample groups. The variations in pVACs contents appear to be at least partly related to differences in the developmental status of the fruit, but the observed trends were genotype-specific. The mean pVACs concentrations per genotype indicated that there is substantial genetic variation in the fruit pVACs contents between Musa cultivars, with orange-fleshed plantain varieties (AAB) having generally higher fruit pVACs contents than dessert bananas (AAA). It was not possible to identify consistent trends between the sampling position and fruit Fe/Zn contents. Once the within-bunch micronutrient variability has been accounted for, the mean variations in fruit micronutrient contents between individual plants of a variety generally fell to within acceptable limits. Results are discussed within the framework of standardizing sampling and developing strategies to screen for the nutritional values of new and existing Musa varieties.

Item Type: Article
Additional Information: We gratefully acknowledge stimulating discussions with Calvin W. Davey and the help of Otto Van Poeselaere and K. Kotsirkof in the preparation of the manuscript. We thank Christine Coorevits, Eric Smolders, and Fien Ghysens from the Laboratory of Soil Analysis, Catholic University of Leuven, for help with the ICP-OES analyses.
Uncontrolled Keywords: Banana; biofortification; Fe; HarvestPlus; micronutrient; Musa; nutrition; plantain; provitamin A carotenoids; vitamin A; Zn
Author Affiliation: Catholic University of Leuven, De Croylaan 42, Heverlee, Leuven, Belgium
Subjects: Plant Production
Crop Improvement
Divisions: Other Crops
Depositing User: Mr. SanatKumar Behera
Date Deposited: 04 Jan 2012 09:12
Last Modified: 04 Jan 2012 09:12
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