@article{jfnr20164102,
author={{Oladeji, Alamu E and Bussie, Maziya-Dixon and Roman, Ferede-Menkir and Ibironke, Popoola and Robert, Asiedu and Therese, Gondwe},
title={Characterization and Classification of the Provitamin A carotenoids of Deep Yellow-fleshed Bitter Yam (<i>Dioscorea</i><i> dumetorum) </i>Varieties},
journal={Journal of Food and Nutrition Research},
volume={4},
number={10},
pages={640--645},
year={2016},
url={http://pubs.sciepub.com/jfnr/4/10/2},
issn={2333-1240},
abstract={Twenty-two genotypes of deep yellow fleshed <i>D.</i><i> </i><i>dumetorum were</i> analysed for carotenoids using High Performance Liquid Chromatography (HPLC) and for similarities in their provitamin A characteristics using Cluster Analysis (CA). The contribution of each carotenoid to provitamin A content was investigated through correlation and regression analysis. Seven of the genotypes fell within the low provitamin A cluster with values from 2.26 ¦Ìg g<SUP>-1 </SUP>to 7.74 ¦Ìg g<SUP>-1</SUP>.<SUP> </SUP>Twelve genotypes were in the intermediate cluster with values between 8.56 ¦Ìg g<SUP>-1</SUP> and 11.20 ¦Ìg g<SUP>-1</SUP>. Three genotypes were within the high cluster with values between 10.13 ¦Ìg g<SUP>-1</SUP> and 14.00 ¦Ìg g<SUP>-1</SUP>. Trans-¦Â-carotene-5,8 epoxide was a significant predictor (¦Â1 = 0.773, p &lt; 0.005) of provitamin A content of the <i>D. dumetorum</i> while trans-¦Â-carotene was not a significant predictor (¦Â2 = 0.593, p > 0.05).},
doi={10.12691/jfnr-4-10-2}
publisher={Science and Education Publishing}
}