Impact of ultrasound treatment on viability of Staphylococcus aureus and the human milk antioxidant activity.
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Date
2022
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Abstract
This study aimed to evaluate the application of thermosonication for the viability of Staphylococcus aureus and the antioxidant
activity of HM. The US effect on the S. aureus was measured by counting viable cells in discarded HM immediately before and
after different treatments varying time (1, 5 and 10 minutes) and temperature (20, 30, 40, 50 and 60 °C) through surface plating
on standard agar. The antioxidant activity evaluation was carried out by 2, 2-diphenyl-1-picrylhydrazyl (DPPH) scavenging
method. With Regarding microbiological quality, it can be concluded that treatment with US at 60 °C for 10 minutes was the
most effective in terms of reducing the viability of S. aureus, in addition to presenting a significant increase in the content of
antioxidants when compared to raw and pasteurized milk samples.
Description
Keywords
Human milk bank, Food microbiology, Thermosonication
Citation
GOMES, N. R. et al. Impact of ultrasound treatment on viability of Staphylococcus aureus and the human milk antioxidant activity. Food Science and Technology, v. 42, artigo e40220, 2022. Disponível em: <https://www.scielo.br/j/cta/a/GXRry4wP8Gq3XRHYqx6ys4p/?lang=en>. Acesso em: 11 out. 2022.