Results showed that it was easy to extrad green pigment with 30%acetone and 5%sodium hydroxide,and the powdered pigment possessed good stability against light,heat and sugar.

• 结果表明在30%25丙酮及5%25氢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、热和糖类具有较好的稳定性。