Naslov
Influence of Ultrasound Pretreatment on Microbiological Quality of Convective and Vacuum Dried Butternut Squash (Cucurbita moschata)

Autori
Čanak, Iva ; Dujmić, Filip ; Badanjak Sabolović, Marija ; Brnčić, Mladen

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

Izvornik
The EuroBiotech Journal / - , 2023, 51-51

Skup
European Biotechnology Congress

Mjesto i datum
Prag, Češka Republika, 05.10.2022. - 07.10.2022

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
ultrasound ; drying ; butternut squash ; shelf life

Sažetak
Ultrasound pretreatment of vegetables has been a hot topic recently and has shown promise in significantly reducing overall processing time. The objective of this study was to investigate the effects of high-intensity ultrasound treatment with different amplitudes and treatment times using an indirect and direct ultrasound device on the microbiological safety of butternut squash by monitoring microbiological growth during 28 days of storage at room temperature. Classical microbiological methods of cultivation on selective media were used to determine the presence of microorganisms. The results showed that the shelf life of the squash was better with the combination of pretreatment and drying than with drying and/or pretreatment alone. All treatment combinations were microbiologically safe after 28 days. The best results were obtained with samples treated with ultrasound at an amplitude of 60 % for 6 minutes before vacuum drying, and no microorganisms were detected in any of the samples.

Izvorni jezik
Engleski

POVEZANOST RADA