Naslov
Application of Low Pressure DBD Plasma treatment in T-2 and HT-2 toxin reduction

Autori
Kiš, Maja ; Milošević, Slobodan ; Vulić, Ana ; Herceg, Zoran ; Vukušić, Tomislava ; Pleadin, Jelka

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstracts PhD Candidate Symposium / - , 2018, 20-20

Skup
PhD Candidate Symposium 2018

Mjesto i datum
Beč, Austrija, 23.10.2018

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
T-2 toxin ; HT-2 toxin reduction ; Low pressure DBD plasma ; Reduction

Sažetak
Trichothecene mycotoxins are found worldwide in cereals and cereal-based products, which creates an ongoing global food security concern. Type A trichothecenes T-2 and HT-2 toxins are potent cytotoxic and immunosuppressive agents, which cause variety of adverse health effects in both humans and animals. The influence of food processing methods on these toxins is still poorly understood. In the recent years, application of cold plasma technology in food industry and agriculture is rapidly growing. This non-thermal food processing method has a high potential in solving various problems connected to microbial decontamination, and has recently been used for degradation of mycotoxins. This study investigated the influence of low pressure plasma discharge system with different work gases (oxygen, nitrogen, air, argon) on T-2 and HT-2 toxin levels in oat flour reference material within various timeframes. The plasma treatment was performed in a 0.5 L reactor, using a power source with nominal power of 6 W (2.5 kV, 25 kHz). Samples were analyzed for T-2 and HT-2 toxin concentrations before and after the treatment using the confirmatory liquid chromatography tandem-mass spectrometry (LC-MS/MS) method. The obtained results show higher degradation of T-2 after plasma treatment than of HT-2 toxin. Maximal degradation of T-2 and HT-2 toxin was achieved using nitrogen gas (38.60% and 33.53%, respectively), whereas application of argon does not significantly (p > 0.05) reduce these mycotoxins. Although the nominal plasma power in this study was insufficient to completely degrade T-2/HT-2 toxins, results indicate that cold plasma has a potential to be used as an effective physical method in reduction of mycotoxins.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Biotehnologija, Prehrambena tehnologija

POVEZANOST RADA