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Time release protein

  • US 5,023,080 A
  • Filed: 06/17/1988
  • Issued: 06/11/1991
  • Est. Priority Date: 06/17/1988
  • Status: Expired due to Term
First Claim
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1. A process for preparing a time release delivery vehicle for delivering an active ingredient over time, comprising the steps of:

  • (a) providing a biodegradable particulate seed protein material having a porous structure, wherein said particulate is in association with lipid materials naturally occurring in said seed;

    (b) removing at least a portion of said lipid material from the particulate to form a substantially dry seed protein having a median particle size sufficiently small that said particulate is in the form of a free flowing powder; and

    combining the dry protein with the active ingredient under conditions of agitation so that the active ingredient will permeate the porous structure of the individual particles of the protein, thereby forming a material that will provide sustained release of said active ingredient over a period of at least 20 minutes.

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