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- Title
A Comparative Study of the Nutrient Composition of Tree-Ripened versus Rack-Ripened Ackees (Blighia sapida).
- Authors
Calvin Falloon, O'Neil; Baccus-Taylor, Gail S. H.; Minott, Donna A.
- Abstract
Ackee canners often harvest mature fruits that are placed on sun racks to complete ripening (indicated by podopening). It is unknown whether the nutrient composition of rack-ripened fruits differs from those completely ripened on trees. This study compares proximate, mineral and fatty acid composition of raw, mature arils of tree-ripened and rackripened fruits. Proximate and mineral compositions were determined, using standard methods, for composite samples of tree-ripened fruits collected from eleven different trees, and for ackees allowed to rack-ripen in the sun over three days. Fatty acid profiles were established by GC-MS analysis of the trans-methylated ackee oils. It was found that rack-ripened ackees had a higher percentage crude fat and crude protein, but lower moisture levels than the tree-ripened ackees (p < 0.05). Mineral contents were similar. Higher quantities of oleic acid and linoleic acid (p < 0.05) were found in the oils of tree-ripened fruits, while a higher proportion of stearic acid (p < 0.05) was present in rack-ripened fruits. In conclusion, the nutritional profiles of tree-ripened and rack-ripened ackees were generally similar. Higher quantities of crude fat and crude protein in rack-ripened ackees were probably a direct consequence of lower residual moisture in the said ackees.
- Subjects
AKEE; FRUIT harvesting; FATTY acids; GAS chromatography/Mass spectrometry (GC-MS); TRANSMETHYLATION; STEARIC acid
- Publication
West Indian Journal of Engineering, 2014, Vol 36, Issue 2, p69
- ISSN
0511-5728
- Publication type
Article