The peptides were extracted, and analyzed using an improved tricine sodium dodecyl sulfate polyacrylamide gel electrophoresis (Tricine-SDS-PAGE) method.

• 方法通过针刺感染大肠杆菌诱导家蝇各虫态产生抗菌肽，再经研磨、离心等步骤提取这些抗菌肽，用改进的聚丙烯酰胺凝胶电泳使其分离。