Results showed that it was easy to extrad green pigment with30% acetone and5% sodium hydroxide, and the powdered pigment possessed good stability against light, heat and sugar.

• 结果表明在30%25酮及5%25氧化钠溶液中易于提取，得到绿色粉末状的绿色素，该色素对光、和糖类具有较好的稳定性。