Preservation of bioactive materials by spray drying
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United States of America Patent
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Apr 20, 2010
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May 31, 2007
filing date -
Apr 11, 2002
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Abstract
This invention provides methods and compositions to preserve bioactive materials in a matrix of powder particles. Methods provide high-pressure gas spraying and/or near supercritical spraying of formulations followed by drying in a stream of conditioned gas to form stable powder particles containing bioactive materials.
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