Bixin and norbixin extracted from the seed phragma o f annatto tree (Bira orellana L.) are two major edible natural pigments health, safe, nutritional and the product market is good.

从红木(胭脂树)种子假种皮中提取的胭脂树橙、降胭脂树橙是重要的食用天然色素,具保健生理功能,安全营养,有较大市场。