Elizabet Janić Hajnal (Author), Janja Babič (Author), Lato Pezo (Author), Vojislav Banjac (Author), Bojana Filipčev (Author), Jelena Miljanić (Author), Jovana Kos (Author), Breda Jakovac-Strajn (Author)

Abstract

This study delved into the impact of two extrusion processing parameters—screw speed (SS at 400, 600, 800 RPM) and material moisture content in the extruder barrel (M at 12, 15, 18%) at constant feed rate (50 kg/h)—on reducing the content of alternariol (AOH), alternariol monomethyl ether (AME), tenuazonic acid (TeA), and tentoxin (TEN) in whole-grain red sorghum flour. Ultra-performance liquid chromatography combined with a triple-quadrupole mass spectrometer (UPLC-MS/MS) was employed for the determination of Alternaria toxin levels. The extruder die temperature fluctuated between 136 and 177 °C, with die pressures ranging from 0.16 to 6.23 MPa. The specific mechanical energy spanned from 83.5 to 152.3 kWh/t, the torque varied between 88 and 162.8 Nm, and the average material retention time in the barrel ranged from 5.6 to 13 s. The optimal parameters for reducing the concentration of all Alternaria toxins with a satisfactory quality of the sorghum snacks were: SS = 400 RPM, M = 12%, with a reduction of 61.4, 76.4, 12.1, and 50.8% for AOH, AME, TeA, and TEN, respectively.

Keywords

co-rotating twun-screw extruder;red sorghum flour;alternariol;alternariol monomethyl ether;tenuazonic acid;tentoxin;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL VF - Veterinary Faculty
UDC: 615.9:614
COBISS: 192761091 Link will open in a new window
ISSN: 2304-8158
Views: 31
Downloads: 0
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Other data

Secondary language: English
Type (COBISS): Article
Pages: str. 1-15
Volume: ǂVol. ǂ13
Issue: ǂiss. ǂ2, [article no.] 255
Chronology: 2024
DOI: 10.3390/foods13020255
ID: 23459694