The article discussing the factors and solution of error in determine color value of monascus pigments, and proposed some modification to test methods in GB4926 - 85 food additive red kojic rice.
本文研究探讨了引起红曲色价测定结果误差的几个因素及解决办法，并对85年版《GB4926- 85食品添加剂红曲米》国家标准中的测定红曲色素色价的方法提出了几点修改建议。
PH influences the color of Monascus pigment. Inside certain pH, the greatest absorption wavelength and color of Monascus pigment are relatively small effect.
pH对红曲色素的呈色有影响，在一定pH范围内，对红曲色素的最大吸收波长和色调的影响都比较小。
But in a very sour or very alkaline conditions, the color of Monascus pigment will change.
但在极酸、极碱条件下，红曲色素的色调会发生变化。
But in a very sour or very alkaline conditions, the color of Monascus pigment will change.
但在极酸、极碱条件下，红曲色素的色调会发生变化。
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