The high effective trade cohesive agent (tyramine glue),produced by Guangzhou Food Industry Research Institute and Pearl Beer Group, and passed the technical appraisement in November, 1994, is classified as the key industrial experimental item in Guangzhou in 1995, and passed the appraisement by the experts of Guangzhou Commision for Inspecting Displine in Jan, 10, 1997. The application by Pearl Beer Factory over five years shows that it features in stable performance and can replace the imported glue of the same kind