Effect of Extrusion Procedure on Selected Grain Parameters in Contrast Wheat Cultivars

Václav Dvořáček, Vladimír Plachý, Lenka Štěrbová, Eva Matějová, Michal Kaválek, Boris Hučko


In spite of the fact that the majority of registered wheats (Triticum aestivum L.) belonging to cultivars suitable for baking applications, more than 60% of annual Czech wheat production is utilized for feeding. Regarding this fact, a proper extrusion process may offer an improvement of grain feeding quality. The study was aimed at monitoring of grain quality parameter changes in extruded wholemeal from three technologically contrasting cultivars (Elixier, Bodyček, Cimrmanova raná) obtained after 8 different combinations of extrusion processes with variation in water dosage and insertion diameter. Technologically different wheat cultivars significantly changed extrusion temperature. Simultaneously, the extrusion process significantly increased RDS content in starch (from 36 to 86 %). On the contrary, the parameters CP and ADF content showed minimal changes after extrusion. The mild reduction of CF and NDF after extrusion probably included hemicellulose degradation. It is possible to conclude that the applied extrusion processes showed comparable effect in all 3 contrasting wheat cultivars on the one hand. On the other hand, the selection of a proper wheat cultivar with suitable grain composition can also bring a further progress in the final quality of extrudates.


extrusion, wheat grain, cultivars, chemical composition, digestibility

Full Text:



Willems, E., World Wheat Market Situation and Outlook 2015/16. In http://www.amis-outlook.org 2015, 1-10.

Vaculová, K., Horáčková, S., Neškrobové polysacharidy v zrně pšenice ozimé. (Nonstarch polysaccharides in grain of winter wheat) – in Czech, Obilnářské listy, 2007, 15(2), 25-31.

Cutlip, S. E., Hott J. M.,, Buchanan N. P.,, Rack, A. L., Latshaw, J. D., Moritz, J. S., The Effect of Steam-Conditioning Practices on Pellet Quality and Growing Broiler Nutritional Value J. Appl. Poult. Res. 2008, 17, 249-261.

Brenes, A., Viveros, A., Centeno, C., Arija, I., Marzo, F., Nutritional value of raw and extruded chickpeas (Cicer arietinum L.) for growing chickens. Span J. Agric. Res., 2008, 6: 537 545.

Moritz, J.S., Parsons, A.S., Buchanan, N.P., Calvalcanti, W.B., Cramer, K.R., Beyer, R.S., Effect of gelatinizing dietary starch through feed processing on zero- to three week broiler performance and metabolism. J. Appl. Poultry Res., 2005, 14, 47-54.

Rahman, M. A. U., Rehman, A., Chuanqi, X., Long, Z. X., Binghai, C., Linbao, J. Huawei S., Extrusion of Feed/Feed Ingredients and Its Effect on Digestibility and Performance of Poultry: A Review. Int. J. Curr. Microbiol. App. Sci, 2015, 4(4), 48-61.

Ljubojevič, D. B., Miloševič, N., Bjedov, S., Stanačev, V., The nutritive value of extruded corn in nutrition of broiler chickens. Biotechnol. Anim. Husbandry, 2011, 27, 1733-1740.

Serrano, X., The extrusion-cooking process in animal feeding. Nutritional implications. In Morand-Fehr P. (ed). Feed manufacturing in Southern Europe: New challenges. 1997, 107-114. (available on http://om.ciheam.org/om/pdf/c26/97605976.pdf).

Englyst, K. N., Englyst, H. N., Hudson, G. J., Cole, T. J., Cummings, J. H., Rapidly available glucose in foods: an in vitro measurement that reflects the glycemic response. The American Journal of Clinical Nutrition, 1999, 69(3), 448-454.

Henry, R. J., Saini, H. S., Characterization of Cereal Sugars and Oligosacharides. Cereal Chem., 1989, 66(5), 362-365.

Zecevic, V., Boskovic, J., Knezevic, D., Micanovic, D., Milenkovic, S., Influence of cultivar and growing season on quality properties of winter wheat (Triticum aestivum L.). African Journal of Agricultural, 2013, 8(21), 2545-2550.

El-Khalek, A. E., Janssens, G.P.J. 2010., Effect of extrusion processing on starch gelatinisation and performance in poultry. World Poult. Sci., J., 2010, 66, 53-63.

Dust, J. M., Gajda, A. M., Flickinger, E. A., Burkhalter, T. M., Merchen, N. R., Fahey, G. C., Extrusion conditions affect chemical composition and in vitro digestion of select food ingredients. J. Agr. Food Chem., 2004, 52, 2989-2996.

Liu, S. Y., Selle, P. H., Cowieson , A. J., Strategies to enhance the performance of pigs and poultry on sorghum-based diets. Anim. Feed Sci. Tech., 2013, 181, 1-14.

Pérez-Hidalgo, M., Guerra-Hernandez, E., Garcia-Villanova, B., Determination of insoluble dietary fiber compounds: cellulose, hemicellulose and lignin in legumes. Ars Pharmaceutica, 1997, 38(4), 357-364.

Saulnier, L., Peneau, N., Thibault, J.-F., Variability in grain extract viscosity and water-soluble arabinoxylan content in wheat. Journal of Cereal Science, 1995, 22(3), 259-264.


  • There are currently no refbacks.

Copyright (c)

Scientific Papers Animal Science and Biotechnologies publish open access articles under the terms of the Creative Commons Attribution 4.0 Licence (read full legal code).


ISSN print 1841 - 9364
ISSN online 2344 - 4576
ISSN-L  1841 - 9364
(former ISSN 1221-5287, E-ISSN 1841-9364)

PAPER ACCESS: Full text articles available for free
FREQUENCY: Semiannual

Banat´s University of Agricultural Sciences and Veterinary Medicine "King Michael I of Romania" from Timisoara
Bioengineering Faculty of Animal Resources
300645, Timişoara, Calea Aradului 119, Romania

E-mail: spasb [at] animalsci-tm.ro
Phone: +40-256-277160, Fax.: +40-256-277110