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标题：Impact of ultrasound treatment on viability of Staphylococcus aureus and the human milk antioxidant activity
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作者：GOMES Nayara Resende ; PARREIRAS Paola Machado ; MENEZES Camila Carvalho 等
期刊名称：Food Science and Technology (Campinas)
印刷版ISSN：0101-2061
电子版ISSN：1678-457X
出版年度：2022
卷号：42
DOI：10.1590/fst.40220
语种：English
出版社：Sociedade Brasileira de Ciência e Tecnologia de Alimentos
摘要：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.
关键词：human milk bank;food microbiology;antioxidant activity;thermosonication