Spray Drying of High Molecular Weight Hyaluronic Acid
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United States of America Patent
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Issued Date -
Jun 5, 2014
app pub date -
May 29, 2012
filing date -
May 30, 2011
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Abandoned
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Abstract
A method of producing spray-dried hyaluronic acid comprising a) spray drying hyaluronic acid, wherein the concentration of the hyaluronic acid in the feed to the spray dryer is in the range of from 3.5 g/l to 7.0 g/l; b) having the temperature in the feed to the spray dryer in the range of from 0° C. to 100° C.; and wherein the molecular weight of the hyaluronic acid in the feed to the spray dryer is ≧1200 kDa.
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