Breeding goose is a high-efficiency poultry farming, which is a small investment, quick turnover and great benefit. In our country, the output of goose is about 80 percent of the world, and the consumption of goose is considerable, which share of the meat market consumption 4%. Whereas, the processing of goose is to be restricted because of its coarse muscle fiber, greater hardness and poor tenderness. Extrinsic proteolytic enzymes used for tendering meat is in common. Elastase is a promising substan...