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首页> 外文期刊>Journal of Agricultural and Food Chemistry >Photoacoustic Approach to Direct Determination of the Total Phenolic Content in Red Sorghum Flours
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Photoacoustic Approach to Direct Determination of the Total Phenolic Content in Red Sorghum Flours

机译:直接测定红高粱粉中总酚含量的光声方法

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摘要

Photoacoustic (PA) spectroscopy in the ultraviolet and visible was demonstrated to be a suitable tool for direct determination of total phenolic content in red sorghum flours. The PA spectra obtained feature two characteristic peaks: the first centered at 285 nm is due to the aromatic amino acids, while the second one at 335 nm is associated with the total phenolic content. The outcome of the PA study was compared with the results obtained by a conventional, tedious Folin-Ciocalteau chemical method. Statistical analysis indicates no significant difference between the two methods used in this study.
机译:紫外和可见光中的光声(PA)光谱被证明是直接测定红色高粱粉中总酚含量的合适工具。获得的PA光谱具有两个特征峰:第一个位于285 nm处的峰是由于芳香族氨基酸引起的,而第二个位于335 nm处的峰与总酚含量有关。将PA研究的结果与通过常规乏味的Folin-Ciocalteau化学方法获得的结果进行了比较。统计分析表明,本研究中使用的两种方法之间没有显着差异。

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