PROXIMATE ANALYSIS OF THE SEEDS AND CHEMICAL COMPOSITION OF THE OILS OF ALBIZIA SAMAN, MILLETTIA GRIFFONIANUS AND TAMARINDUS INDICA FROM NIGERIA
Journal Title: Annals. Food Science and Technology - Year 2011, Vol 12, Issue 2
Abstract
Analysis of lesser known underutilized seed oils is important as there is little or no information on their composition and uses, since most of them are yearly discarded as waste. Analysis of these underutilized tropical seed oils will help in grouping them and making the best use of them in various applications. The seeds of Albizia saman, Millettia griffonianus and Tamarindus indica were evaluated for their proximate composition while their oils were subjected to chemical analysis. The metal composition of the seeds and oils were determined using AAS while the fatty acid composition was evaluated using GC. A. saman (39.40 ± 0.30 %) had the highest protein content while M. griffonianus (59.49 ± 0.80 %) recorded the highest carbohydrate content. The oil content of the seeds of Albizia saman, Millettia griffonianus and Tamarindus indica were 9.77 ± 1.21 %, 10.91 ± 1.00 % and 3.11 ± 0.41 %; respectively. Oil of Millettia griffonianus (151.20±0.20 g iodine/100g) recorded the highest iodine value. C18:2 was the dominant fatty acid found in the oils while the neutral lipids were the most abundant lipid class in the oils. The seeds as well as the oils were found to be rich in K and Na. The result of the GC-MS revealed hydrocarbons as the major unsaponifiable matters in the oils, other compounds identified includes phytol, sterols, and beta-Tocopherol.
Authors and Affiliations
Adewale Adewuyi Adewuyi, Rotimi Oderinde, B. V. Rao, R. B. Prasad, M. Nalla
Keywords
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