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The Linner hue index,〔R T Linner, "Caramel color: a new method of determining its color hue and tinctorial power." ''Proceedings of the Society of Soft Drink Technologists Annual Meeting,'' 1970, p 63-72.〕 , is used to describe the hues which a given caramel coloring may produce. In conjunction with tinctorial strength, or the depth of a caramel coloring's color, it describes the spectra which a solution of the coloring may produce at different dilutions and thicknesses. It also has applications in brewing. Linner mentioned that most caramel colors had log absorbance spectra which were essentially linear in the visible range. This means that such a spectrum could be characterized by a point (a log absorbance at some particular wavelength) and its slope. Because caramel colors have warm hues (i.e., greater absorbance for shorter wavelengths), the slopes of their log absorbance spectra will be negative. is the negative of this slope, multiplied by a convenient factor. == Definition == The Linner hue index is defined as: : This is simply the negative of the slope of the log absorbance spectrum, between 510 and 610 nm wavelength, for materials that obey Linner's hypothesis of linear log-absorbance spectra. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Linner hue index」の詳細全文を読む スポンサード リンク
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