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US 12,582,117 B2Granted
Encapsulation of larvicides into biopolymer capsules
AssigneesUNM Rainforest Innovations, FundaçãO Oswaldo Cruz
InventorsAlexandra Victoria Yingling, Ivy Foo-Hurwitz, Linnea Ista, Scott Matthews, Fernando Genta, Bruno Gomes da Silva
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Abstract
The present invention describes capsule compositions consisting of crosslinked chitosan, beta-glucan or alginate, and encapsulates an environmentally compatible ingestible larvicide, especially larvicidal agents such as essential oils or other ingestible larvicides such as Bacillus thuringiensis which are lethal to the larvae of pest insects, especially mosquito larvae.
Claims20
An ingestible larvicide composition comprising:
- an effective amount of larvicide comprising Bacillus thuringiensis israelensis (Bti);
- the Bti disposed within a non-viable yeast cell;
- the non-viable yeast cell disposed within a crosslinked polymer comprising chitosan, strontium, and genipin;
- the crosslinked polymer further comprising alginic acid and beta-glucan;
- the chitosan at a molecular weight of 1 to 1000 kilodaltons (kDa);
- and
- the composition forming an egg-box structure.
4 more elements
Dependencies are inferred from the claim text.