Article (Scientific journals)
Influence of variety, harvesting date and drying temperature on the composition and the in vitro digestibility of corn grain
Odjo, Djossè Psijus Sylvanus; Bera, François; Beckers, Yves et al.
2018In Journal of Cereal Science, 79, p. 218-225
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Keywords :
Corn grain; Digestibility; Drying; Harvesting date
Abstract :
[en] This study aimed at assessing the influence of corn variety, harvesting date and drying temperature on the composition and the in vitro digestion of dry matter, starch and crude protein of mature corn grain. Two corn grains varieties harvested at two different dates after physiological maturity (at two different moisture contents) were analyzed for their composition and dried in a fluidized-bed dryer between 54 and 130 °C. The corn varieties differed in their chemical composition while the harvesting date had only a significant impact (p < 0.05) on the neutral detergent fibre content. The dried samples were then submitted to a sequential in vitro pepsin-pancreatin digestion. Crude protein digestibility is influenced by corn variety and decreases when drying temperature and moisture content increase. The in vitro digestibilities of dry matter and starch increase in the same trend even if they are differently affected by the drying temperature according to the moisture content level. At higher moisture content, the increase in the in vitro digestibility of dry matter and starch follow a linear trend (R2 > 0.97). It appears that the drying temperature, the harvesting date and the corn varieties may significantly affect the digestion of corn grain major components with possible implication on animal performance. © 2017 Elsevier Ltd
Disciplines :
Food science
Author, co-author :
Odjo, Djossè Psijus Sylvanus ;  Laboratory of Food Process Engineering, Gembloux Agro-Bio Tech, University of Liege, Passage des Déportés, 2, Gembloux, Belgium
Bera, François ;  Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > SMARTECH
Beckers, Yves  ;  Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Ingénierie des productions animales et nutrition
Foucart, Guy;  Centre Indépendant de Promotion Fourragère (CIPF-ASBL), Université Catholique de Louvain, Croix du Sud 2 boîte 3, Louvain-la-Neuve, Belgium
Malumba Kamba, Paul  ;  Food is Life Care, Terra Teaching and Research Center, Gembloux Agro-Bio Tech, University of Liege, Passage des Déportés, 2, Gembloux, Belgium
Language :
English
Title :
Influence of variety, harvesting date and drying temperature on the composition and the in vitro digestibility of corn grain
Publication date :
2018
Journal title :
Journal of Cereal Science
ISSN :
0733-5210
eISSN :
1095-9963
Publisher :
Academic Press
Volume :
79
Pages :
218-225
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
Project MAISECVOL (grant number D31-1285)
Funders :
SPW DG03 - Service Public de Wallonie. Direction Générale Opérationnelle Agriculture, Ressources naturelles et Environnement (DGARNE)
WBI - Wallonie-Bruxelles International [BE]
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since 05 March 2018

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