花色素苷广泛存在于植物内，是重要的呈色物质之一。
Anthocyanin is one of the important pigments, which is usually found in plants.
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。
PH influences the color of Monascus pigment. Inside certain pH, the greatest absorption wavelength and color of Monascus pigment are relatively small effect.
本文研究了环状糊精、糊精、乳酸钙、葡萄糖酸钙等食品添加剂对紫苏色素呈色作用和稳定性的影响。
The effect of several acidifiers, such as citric acid, and sugars on the stability of perilla color were studied.
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