Classification of Some Wild Yam Species Tubers of Ivory Coast Forest Zone
Sahoré Drogba Alexis, Amani N’Guessan Georges
International Journal of Biochemistry Research & Review · pp. 137–151 · Published 18 Dec 2012
10.9734/IJBCRR/2012/2017Abstract
The tubers of some wild yam species (eight) found in the Ivory Coast forest were collected and their classification according to their nutrients and antinutritional factors was made by principal component analysis (PCA). The principal component analysis (PCA) of individuals, constituted by the yam species, according to nutrients considered as the variables, showed two principal axes of correlation F1 and F2. The percentages of variables dispersion around the principal axes F1 and F2 were equal to 72.86% and 20.24% respectively. The individuals projected on the principal axes F1 and F2 grouped into four classes around the axes. Around the axis F1 (72.26%): The class gathering the tubers of wild yam species D. minutiflora; D. will hirtiflora and D. bulbifera bulbil which contained more Moisture and the class gathering the tubers of wild yam species D. burkilliana; D. bulbifera tuber; D. dumetorum; D. praehensilis and D. mangenotiana which had the highest Energy Value. Around the axis F2 (20.24%): The class gathering the tubers of wild yam species D. burkilliana; D. bulbifera tuber; D. dumetorum and D. praehensilis which contained more Soluble carbohydrates and the class gathering the tubers of wild yam species D. minutiflora; D. hirtiflora; D. bulbifera bulbil and D. mangenotiana which contained more ash. The principal component analysis (PCA) of individuals, constituted by wild yam species, according to their Antinutritional factors considered as the variables, showed two principal axes of correlation F1 and F2. The percentages of variables dispersion around the principal axes F1 and F2 were equal to 35.88% and 31.99%) respectively. The individuals projected on the principal axes F1 and F2 grouped into 3 classes around axes: Around the axis F1 (35.88%): The class gathering the tubers of wild yam species D. mangenotiana; D. dumetorum; D. burkilliana; D. bulbifera bulbil; D. togoensis; D. bulbifera tuber and D. praehensilis which contained more, Tannins, Alkaloids and Hydrocyanic acid. Around the F2 axis (31.99%): The class gathering the tubers of wild yam species D. togoensis; D. dumetorum; D. minutiflora; D. mangenotiana; D. praehensilis and D. bulbifera bulbil which contained more Oxalic Acid and the class gathering the tubers of wild yam species D. togoensis; D. hirtiflora; D. minutiflora and D. dumetorum and which contained more Sapogenins.
Cited by 2
O.A. Abiodun, R. Akinoso, O.O. Olosunde · Food Chemistry · 2014
T. K. Lim · Edible Medicinal and Non-Medicinal Plants · 2016
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