This invention provides compositions and methods providing, e.g., stable powder particles containing bioactive materials. The methods include, e.g., high pressure spraying of the bioactive materials in solution or suspension, with viscosity enhancing agents and/or surfactants. Compositions of the invention...http://www.google.de/patents/US20040185091?utm_source=gb-gplus-sharePatent US20040185091 - High pressure spray-dry of bioactive materials
