【摘要】 用分光光度法研究了半截红萝卜红色素在不同ｐＨ值条件下的可见光谱，以及光照和温度对可见光谱的影响，讨论了用作食品色素的使用条件。更多还原

【Abstract】 The visible spectrum of the red pigment at different pH in half-red rad ish is studiedwith spectrophtometrc methed and the effect of light and temperature on the visible spoctrum isstudied too. The condition of pigment used as food pigment is discussed here.更多还原