Rat bioassay of the protein nutritional quality of soy-fortified sorghum biscuits for supplementary feeding of school-age children
dc.contributor.author | Serrem, C.A. (Charlotte Atsango) | |
dc.contributor.author | De Kock, Henrietta Letitia | |
dc.contributor.author | Oelofse, Andre | |
dc.contributor.author | Taylor, J.R.N. (John Reginald Nuttall) | |
dc.contributor.email | john.taylor@up.ac.za | en_US |
dc.date.accessioned | 2012-09-19T06:32:41Z | |
dc.date.available | 2012-09-19T06:32:41Z | |
dc.date.issued | 2011-08 | |
dc.description.abstract | BACKGROUND: Protein-Energy Malnutrition (PEM) remains a major deficiency disease among children in developing countries. The protein nutritional quality of soy fortified sorghum biscuits was evaluated with respect to their potential as a protein-rich supplementary food. Three isonitrogenous diets based on: 50:50 ratio decorticated sorghum: defatted soy flour biscuits, 100% sorghum biscuits, casein, and a protein-free diet were fed to male Sprague Dowley weanling rats. RESULTS: Protein Efficiency Ratio (PER) for the sorghum-soy biscuit diet was equivalent to the reference casein diet, and zero for the 100% sorghum diet. Faecal bulk for 100% sorghum diet was 1.5 times higher than sorghum-soy and casein diets. True protein digestibility of the three diets was high, 88 to 95%, agreeing with previous rat studies with sorghum. Biological Value and Net Protein Utilization of sorghum-soy biscuit diet were similar to the casein diet, but lower that the 100% sorghum biscuit diet CONCLUSION: Not withstanding limitations of rat bioassay for assessing sorghum food protein quality, the higher PER of defatted soy flour fortified sorghum biscuits (sorghum: soy 50:50 ratio) indicates they have considerable potential as a supplementary food to young children to alleviate PEM. | en_US |
dc.description.uri | http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1097-0010/ | en_US |
dc.identifier.citation | Serrem, CA, De Kock HL, Oelofse, A & Taylor JRN 2011, 'Rat bioassay of the protein nutritional quality of soy fortified sorghum biscuits for supplementary feeding of school-age children', Journal of The Science of Food and Agriculture, vol. 91, no. 10, pp. 1814-1821. | en_US |
dc.identifier.issn | 0022-5142 (print) | |
dc.identifier.issn | 1097-0010 (online) | |
dc.identifier.other | 10.1002/jsfa.4389 | |
dc.identifier.uri | http://hdl.handle.net/2263/19803 | |
dc.language.iso | en | en_US |
dc.publisher | Wiley | en_US |
dc.rights | © 2011 Society of Chemical Industry. This is a preprint of an article published in Journal of the Science of Food and Agriculture and available at: http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1097-0010. | en_US |
dc.subject | Protein Efficiency Ratio | en_US |
dc.subject | Protein-Energy Malnutrition | en_US |
dc.subject | Rat bioassay | en_US |
dc.subject | School-age children | en_US |
dc.subject | Sorghum | en_US |
dc.subject | Supplementary feeding | en_US |
dc.title | Rat bioassay of the protein nutritional quality of soy-fortified sorghum biscuits for supplementary feeding of school-age children | en_US |
dc.type | Preprint Article | en_US |