Fat Content and Fatty Acid Profiles of Shea Tree (Vitellaria paradoxa subspecies nilotica) Ethno-Varieties in Uganda

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dc.contributor.authorGwali, Samson
dc.contributor.authorNakabonge, Grace
dc.contributor.authorOkullo, John Bosco Lamoris
dc.contributor.authorEilu, Gerald
dc.contributor.authorForestier-Chiron, Nelly
dc.contributor.authorPiombo, Georges
dc.contributor.authorDavrieux, Fabrice
dc.date.accessioned2022-07-07T21:02:17Z
dc.date.available2022-07-07T21:02:17Z
dc.date.issued2012
dc.description.abstractFat content and fatty acid composition are important nutritional properties of shea fruits. Farmers in Uganda report the presence of local shea tree ethno-varieties, but it is necessary to investigate their relative fat content and fatty acid composition to evaluate the economic importance of these ethno-varieties. Near infrared spectrophotometry (NIRS) was used to determine the fat content as well as the fatty acid composition of 44 ethno-varieties. Wet chemistry (soxtec petroleum – ether fat extraction and gas chromatography) methods were used to validate the results from NIRS. Fat content ranged from 43.9% to 58.4% while fatty acid composition was dominated by oleic (47–62%) and stearic acid (25–38%). Other fatty acids present were palmitic, vaccenic, linoleic, linolenic and arachidic acids. There was no significant difference in stearic, palmitic and oleic acid composition between ethno-varieties. However, significant variation of fat content, vaccenic and linoleic acids was observed between some ethno-varieties, perhaps due to locality, climatic and tree-to-tree differences. These findings can be utilized for the selection of ethno-varieties that are suitable for commercial production of shea oil in Uganda.en_US
dc.identifier.citationGwali, S., Nakabonge, G., Okullo, J. B. L., Eilu, G., Forestier-Chiron, N., Piombo, G., & Davrieux, F. (2012). Fat content and fatty acid profiles of shea tree (Vitellaria paradoxa subspecies nilotica) ethno-varieties in Uganda. Forests, Trees and Livelihoods, 21(4), 267-278.https://doi.org/10.1080/14728028.2012.755810en_US
dc.identifier.issn2164-3075
dc.identifier.urihttps://nru.uncst.go.ug/handle/123456789/4180
dc.language.isoenen_US
dc.publisherForests, Trees and Livelihoodsen_US
dc.subjectshea tree; Vitellaria paradoxa; nilotica; fatty acids; near infrared spectrophotometry; Teso; West Nileen_US
dc.titleFat Content and Fatty Acid Profiles of Shea Tree (Vitellaria paradoxa subspecies nilotica) Ethno-Varieties in Ugandaen_US
dc.typeArticleen_US
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