Abstract: A hydrolyzed collagen dough produced from bovine collagen and methods for producing the collagen dough from bovine hides is provided. The collagen dough comprises water, bovine collagen, sodium benzoate and hydrochloric acid. To produce the collagen dough, the corium layer is separated from bovine hides and treated. The collagen dough may be used, for example, in biomedical applications, such as cell technology/tissue engineering, suture materials, or film and sponges for skin grafting. The collagen dough may further comprise chitosan.

Abstract: The system and method of the instant invention utilizes a color sensor in order to monitor and control the application of a coating to a substrate when such coating is transferred onto a substrate from a deposition source. Application of the coating to the substrate is terminated when the color sensor detects a pre-programmed end point evidencing the application of an appropriate coating determined by its color.