红曲红色素自古以来是人们食品着色的重要原料。
The red pigment fermented by Monascus sp. is an important raw material for food coloring from ancient time.
红曲红色素与连二亚硫酸钠在碱性溶液中反应，制得水溶性红色素。
The water - soluble Monascus yellow pigment was prepared from the Monascus red pigment and sodium dithionite in base solution.
该产品是一种安全、性能优良的天然防腐剂，经济价值高于红曲红色素。
This product is a safe and excellent natural preservative. Its economic value is higher than monascus red coloring matter.
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