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Influence of high intensity ultrasound with different probe diameter on the degree of homogenization (variance) and physical properties of cow milk

机译:不同探头直径的高强度超声对牛奶均质化程度(方差)和物理性质的影响

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The main goal of this research is to analyze the influence of ultrasonic probe diameters (7 and 10 mm) of high-intensity ultrasound with constant frequency (30 kHz) on the degree of homogenization (variance) of cow milk. Influence of different probe diameters on the physical properties of cow milk was also tested. Changes in temperature, pH and density were measured under the following operational conditions of the ultrasonic device: amplitude, A = 20, 60,100%; and applied cycle, c = 0.6, 0.8, 1, with various treatment duration, t = 2, 6, 10, 15 min. Obtained results are processed in the “Statistica 8” software. Microscopic images of fat globules were edited in Image J software, while size of fat globules was represented with Log-normal distribution. Statistical analysis was conducted and influence of probe diameters on physical properties was expressed over p-value (p < 0.05) and?β-standardized coefficient analyses of variance (ANOVA). Applications of different probe diameter have significant influence on all physical properties and variance. With increase of the amplitude and time, significant influence on variance (degree of homogenization) is observed.
机译:这项研究的主要目的是分析恒定频率(30 kHz)的高强度超声的超声探头直径(7和10 mm)对牛奶的均质度(方差)的影响。还测试了不同探针直径对牛奶物理性能的影响。在超声设备的以下操作条件下测量温度,pH和密度的变化:振幅,A = 20、60,100%;以及应用周期c = 0.6、0.8、1,各种治疗时间t = 2、6、10、15分钟。获得的结果在“ Statistica 8”软件中进行处理。在Image J软件中编辑了脂肪球的显微图像,而脂肪球的大小用对数正态分布表示。进行统计分析,并通过p值(p <0.05)和Δβ标准化方差系数分析(ANOVA)表示探针直径对物理性能的影响。不同探头直径的应用对所有物理特性和方差都有重大影响。随着幅度和时间的增加,可以观察到对方差(均匀度)的显着影响。

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