Application of a 360-Degree Radiation Thermosonication Technology for the Inactivation of Staphylococcus aureus in Milk
Milk is easy to be contaminated by microorganisms due to its abundant nutrients. In this study, a 360-degree radiation thermosonication (TS) system was developed and utilized for the inactivation of Staphylococcus aureus in milk. The 360-degree radiation TS system-induced inactivation kinetics of S....
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2021-11-01
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| Series: | Frontiers in Microbiology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmicb.2021.771770/full |
| _version_ | 1818428049995071488 |
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| author | Jianwei Zhou Lele Sheng Ruiling Lv Donghong Liu Donghong Liu Tian Ding Tian Ding Xinyu Liao Xinyu Liao |
| author_facet | Jianwei Zhou Lele Sheng Ruiling Lv Donghong Liu Donghong Liu Tian Ding Tian Ding Xinyu Liao Xinyu Liao |
| author_sort | Jianwei Zhou |
| collection | DOAJ |
| description | Milk is easy to be contaminated by microorganisms due to its abundant nutrients. In this study, a 360-degree radiation thermosonication (TS) system was developed and utilized for the inactivation of Staphylococcus aureus in milk. The 360-degree radiation TS system-induced inactivation kinetics of S. aureus was fitted best by the Weibull model compared with biphasic and linear models. The treatment time, the exposure temperature, and the applied ultrasound power was found to affect the bactericidal efficacy of the 360-degree radiation TS system. Additionally, the TS condition of 200 W and 63°C for 7.5 min was successfully applied to achieve complete microbial inactivation (under the limit of detection value) in raw milk. The treatment of 360-degree radiation TS can enhance the zeta potential and decrease the average particle size of milk. It also exhibited better retainment of the proteins in milk compared with the ultrahigh temperature and conventional pasteurization processing. Therefore, the 360-degree radiation TS system developed in this study can be used as an alternative technology to assure the microbiological safety and retain the quality of milk, and the Weibull model could be applied for the prediction of the inactivation levels after exposure to this technology. |
| first_indexed | 2024-12-14T14:55:27Z |
| format | Article |
| id | doaj.art-b8f3eb23ad1244ffa055f98802e3e564 |
| institution | Directory Open Access Journal |
| issn | 1664-302X |
| language | English |
| last_indexed | 2024-12-14T14:55:27Z |
| publishDate | 2021-11-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Microbiology |
| spelling | doaj.art-b8f3eb23ad1244ffa055f98802e3e5642022-12-21T22:57:00ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2021-11-011210.3389/fmicb.2021.771770771770Application of a 360-Degree Radiation Thermosonication Technology for the Inactivation of Staphylococcus aureus in MilkJianwei Zhou0Lele Sheng1Ruiling Lv2Donghong Liu3Donghong Liu4Tian Ding5Tian Ding6Xinyu Liao7Xinyu Liao8School of Mechanical and Energy Engineering, Ningbotech University, Ningbo, ChinaDepartment of Food Science and Nutrition, Zhejiang University, Hangzhou, ChinaNingbo Research Institute, Zhejiang University, Ningbo, ChinaDepartment of Food Science and Nutrition, Zhejiang University, Hangzhou, ChinaNingbo Research Institute, Zhejiang University, Ningbo, ChinaDepartment of Food Science and Nutrition, Zhejiang University, Hangzhou, ChinaNingbo Research Institute, Zhejiang University, Ningbo, ChinaSchool of Mechanical and Energy Engineering, Ningbotech University, Ningbo, ChinaDepartment of Food Science and Nutrition, Zhejiang University, Hangzhou, ChinaMilk is easy to be contaminated by microorganisms due to its abundant nutrients. In this study, a 360-degree radiation thermosonication (TS) system was developed and utilized for the inactivation of Staphylococcus aureus in milk. The 360-degree radiation TS system-induced inactivation kinetics of S. aureus was fitted best by the Weibull model compared with biphasic and linear models. The treatment time, the exposure temperature, and the applied ultrasound power was found to affect the bactericidal efficacy of the 360-degree radiation TS system. Additionally, the TS condition of 200 W and 63°C for 7.5 min was successfully applied to achieve complete microbial inactivation (under the limit of detection value) in raw milk. The treatment of 360-degree radiation TS can enhance the zeta potential and decrease the average particle size of milk. It also exhibited better retainment of the proteins in milk compared with the ultrahigh temperature and conventional pasteurization processing. Therefore, the 360-degree radiation TS system developed in this study can be used as an alternative technology to assure the microbiological safety and retain the quality of milk, and the Weibull model could be applied for the prediction of the inactivation levels after exposure to this technology.https://www.frontiersin.org/articles/10.3389/fmicb.2021.771770/full360-degree radiation thermosonicationinactivation kineticsStaphylococcus aureusquality characteristicmilk |
| spellingShingle | Jianwei Zhou Lele Sheng Ruiling Lv Donghong Liu Donghong Liu Tian Ding Tian Ding Xinyu Liao Xinyu Liao Application of a 360-Degree Radiation Thermosonication Technology for the Inactivation of Staphylococcus aureus in Milk Frontiers in Microbiology 360-degree radiation thermosonication inactivation kinetics Staphylococcus aureus quality characteristic milk |
| title | Application of a 360-Degree Radiation Thermosonication Technology for the Inactivation of Staphylococcus aureus in Milk |
| title_full | Application of a 360-Degree Radiation Thermosonication Technology for the Inactivation of Staphylococcus aureus in Milk |
| title_fullStr | Application of a 360-Degree Radiation Thermosonication Technology for the Inactivation of Staphylococcus aureus in Milk |
| title_full_unstemmed | Application of a 360-Degree Radiation Thermosonication Technology for the Inactivation of Staphylococcus aureus in Milk |
| title_short | Application of a 360-Degree Radiation Thermosonication Technology for the Inactivation of Staphylococcus aureus in Milk |
| title_sort | application of a 360 degree radiation thermosonication technology for the inactivation of staphylococcus aureus in milk |
| topic | 360-degree radiation thermosonication inactivation kinetics Staphylococcus aureus quality characteristic milk |
| url | https://www.frontiersin.org/articles/10.3389/fmicb.2021.771770/full |
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