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首页> 外文期刊>Journal of the Japanese Society for Horticultural Science >Detection of Textural Difference between Cultivars of Bunching Onion using the Device for Acoustic Measurement of Food Texture
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Detection of Textural Difference between Cultivars of Bunching Onion using the Device for Acoustic Measurement of Food Texture

机译：声学测量食物质地的装置用于检测洋葱簇生品种之间的质地差异

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摘要

The acoustic vibration signals of 9 cultivars in 3 groups (Kaga, Senju and Kujo) of bunching onion were acquired using a device for acoustic measurement of food texture. To imitate biting bunching onion with an incisor, a stainless steel wedge-type head was introduced to fresh tissue perpendicularly and parallel to the longitudinal axis. A half-octave multifilter was developed to analyze the obtained signals in the frequency domain, and then the root-mean-square amplitude in each frequency band was computed and defined as a texture index. The results showed that the signals obtained with the perpendicular insertion were larger than those obtained with the parallel insertion. The total texture index, which is the summation of texture indices in 18 frequency bands, of each cultivar was grouped together as the same cultivar group, except for 'Shimonita' cultivar of the Kaga-group. Principal components analysis (PCA) also clustered successfully each cultivar group in the space of the first two principal components (PCs), also excluding 'Shimonita'. Furthermore, the ratios of the texture index of perpendicular to parallel penetration clearly distinguished each group. These results suggested that the device could detect textural differences among cultivar groups of bunching onion.
机译：使用用于对食物质地进行声学测量的设备来获取3个聚束洋葱（加贺，千住和九条）组中9个品种的声学振动信号。为了用门齿模仿咬合的洋葱束，将不锈钢楔形头垂直和平行于纵轴引入到新鲜组织中。开发了一个半倍频程的多滤波器来分析频域中获得的信号，然后计算每个频带中的均方根振幅并将其定义为纹理指数。结果表明，垂直插入获得的信号大于平行插入获得的信号。每个品种的总质地指数是18个频段的质地指数的总和，除了Kaga组的“ Shimonita”品种以外，其他每个品种都归为同一品种。主成分分析（PCA）还在前两个主成分（PC）的空间（不包括“下田”）中成功地对每个品种组进行了聚类。此外，垂直与平行渗透的织构指数之比清楚地区分了每组。这些结果表明，该装置可以检测不同品种的聚束洋葱之间的质地差异。

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