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Food and Feed Research
2018, vol. 45, iss. 2, pp. 193-201
article language: English
document type: Original Paper
Creative Commons License 4.0
Detoxification of linseed-sunflower meal co-extrudate: Process prediction
aInstitute for Food Technology, Novi Sad
bInstitute of General and Physical Chemistry
cAgricultural University of Athens, Athens, Greece



Investigation of contemporary biotechnological processes in animal feed production aimed at increasing food competitiveness, quality and safety (MESTD - 46012)
COST CA 15118 project


For many years, linseed has been attracted a great attention in animal nutrition because of its exceptionally favourable fatty acid composition and high content of essential α-linolenic acid. However, the presence of antinutritive components, cyanogenic glycosides, limits its inclusion in the animal's diet. Several ways of linseed detoxification were observed in literature, emphasizing extrusion as one of the most effective processes. In the presented study, the application of Artificial Neural Network (ANN) has been observed, as a tool for prediction of process influence on the deterioration of cyanogenic glycosides during the extrusion process of linseed-sunflower meal co-extrudate. The content of hydrogen cyanide (HCN) was determined according to the AOAC method as an indicator of cyanogenic glycosides in the produced co-extrudate. Extrusion of the material was performed on a laboratory single screw extruder. The performance of ANN model was compared with experimental data in order to develop rapid and accurate method for prediction of HCN content in co-extrudate. According to the experimental results, the highest HCN content (126 mg/kg) was determined at the lowest moisture content (7%) and the lowest screw speed (240 rpm). With the increase of moisture content and temperature during extrusion, the content of HCN drastically decreased. The ANN model showed high prediction accuracy (r2> 0.999), which indicates that the model could be easily and reliably applied in practice.



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