Capsules for Controlled Release of Plant Pathogens, Fertilizers, or Micro Organisms as Biological Control for Plant Pathogens
Cluster11 Plant Protection / Bio-Control Project ID : 8-2006-802
Summary of the technology
Plant Protection / Bio-Control
Project ID : 8-2006-802
Description of the technology
Dried cellular hydrocolloid carriers for biological control of pathogens
Agriculture, Pest Control / Herbicides, Biological Pest Control, Carriers
Granted US Patent 7,422,737
Gel beads are freeze-dried to produce and enhance a porous structure. The result is a low-density dried cellular product composed of many fused open and closed cells. Exposure to moisture allows the controlled release or extended release of the micro organisms and other substrates, substances and/or products that are contained within the carrier from the matrix.
SEM of typical freeze-dried alginate bead walls.
Panel A: Control (dry bead without bacteria).
Panel B: Dry bead.
Panel C: Dry bead with glycerol.
Panel D: Dry bead with bentonite and glycerol.
Panel E: Dry bead with chitin and glycerol.
Panel F: Dry bead with kaolin and glycerol.