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Modelisation of the different alteration factor of durum wheat stored in Tunisia

Bouslah Fatima 1, Khaled Elmoueddeb 1, Mohamed Elyes Hamza 2
1 Department of Mecanical Engineering High School of Engineer University of Jendouba, 9070, Medjez El Bab, Tunisia
Department of Agricultural Engineering Forestry water, National Agronomic Institute of Tunisia, University of Carthage 1082 Cité Mahrajène Le Belvédère Tuni, Tunisia
*Corresponding author: Bouslah Fatima, Department of Mecanical Engineering High School of Engineer University of Jendouba, 9070, Medjez El Bab, Tunisia.
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Date: January 9,2020 Hits: 430, How to cite this paper


According to the analysis of the means, at the end of 6 months of storage of the two silos, the impurity levels is 0.94% for the control silo while it is 0.49% for the experimental silo. The rate of broken kernels increased during the storage period in the experimental silo and this reflects the effect of grain transfer from 0.41% to 0.48%, while the attacked kernels decreased by 0.9% at 0.41%. There was a higher incidence of dead insects in the control silo as this cell was retreated during filling and some live insects died by shaking the durum wheat from the experimental silo during removed grains. The models of the determined regression equations of the different durum degradation variables make it possible to note that moisture and temperature are the main triggers for the increase of losses by the damage to broken grains, attacked grains, mitered grains and dust, the proliferation of insects. This is validated by the models equations, which explain that each variable causes the other three in the presence of temperature and humidity. The increase of the attacked grains generates an elevation of the broken grains later all this will generate an increase of dust thanks to the activity of the insects. The presence of broken grains, dust, attacked and macerated grains at the beginning of durum storage in the experimental and control silos. All the models are explained inter alia by the attacked grains variable, which explains that this one is the main provocateur of the stored durum wheat alterations. Indicating that mitered grains (starchy grains) is one of the main factors in the commercial decommissioning of durum wheat. The dust results from all these degradation. Models of regression equations for the occurrence of live and dead insects show that these insect variables vary with storage time (days), moisture and temperature of model stored durum wheat. In addition to the regression equations of living and dead insects that are explained by the attacked, lean, harmful grains and other durum wheat grains stored model show that these latter factors facilitate the proliferation of insects in the durum wheat mass in the presence of temperature and humidity. The grains of other grains and pests are very fragile to be attacked by insects. The proliferation of insects weakens the conservation of durum wheat grains. Impurities are the residues of all the degradation of durum and other grains of other cereals. The variable impurity increases with the attacked grains, taking into account that the impurities evolve well with the temperature and humidity. It is noted that lean beans contribute to the degradation of durum wheat grains and show dust in the presence of temperature and humidity. Finally, the presence of broken grains, attacked, dust and impurities at the beginning of storage can inform us about the quality and quantity of durum grain losses at the end of the storage period.


[1] Les problèmes de qualité du blé dur après stockage en Tunisie [Durum Wheat Storage Problems Quality in Tunisia]; International Journal of Innovation and Scientific Research, Fatima Bouslah, Khaled El Moueddeb, Mohamed Elyes Hamza; 2016, ISSN 2351-8014 Vol. 21No. 1 Mar. 2016, pp. 190-200 © 2015 Innovative Space of Scientific Research Journals. 13p
[2] Les problèmes de qualité du blé tendre après stockage dans les conditions climatiques chaudes (cas de la Tunisie); Fatima Bouslah; Khaled El Moueddeb; Mohamed Elyes Hamza; Ben Ncir Ahmed; 2016, Xth International Congress on Renewable Energy and the Environment; 23- 25 March 2016, Tunisia
[3] Étude des différents types de pertes de stockage et conservation des céréales dans les régions à climat chaud, Fatima Bouslah; Mohamed Elyes Hamza; Khaled El Moueddeb; 2017; Cet ouvrage a été composé par Edilivre 175, boulevard Anatole France –93200 Saint- Denis; France; 44p
[4] Compared Storage Quality Durum and Soft Wheat in Tunisia; Fatima Bouslah, Khaled El Moueddeb, Mohamed Elyes Hamza; 2017 14th Tunisia-Japan Symposium on Science, Society and Technology (TJASSST 2017); 24-26 Novembre 2017, Tunisia 

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Modelisation of the different alteration factor of durum wheat stored in Tunisia

How to cite this paper: Fatima, B., Elmoueddeb, K., Hamza M. E. (2020) Modelisation of the different alteration factor of durum wheat stored in Tunisia. International Journal of Food Science and Agriculture, 4(1), 12-17.
DOI: http://dx.doi.org/10.26855/ijfsa.2020.03.003

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