Encapsulation matrix composition and encapsulate containing same
AssigneeSCM Corporation
InventorsJanette M. Barnes, James A. Steinke
Life of this patent
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Abstract
There is provided an extrudable encapsulation matrix composition having improved loading capacity for oils, flavors, fragrances, agricultural chemicals, insecticides, drugs, etc. The matrix comprises a maltodextrin and hydrogen octenylbutanedioate amylodextrin or equivalent.
Claims28
A particulate composition in the form of a solid extrudate comprising a matrix composition and up to about 40% loading, based on the weight of the particulate composition, of an active ingredient, wherein said matrix composition comprises
- (a) from about 5 parts to about 95 parts by weight of maltodextrin;
- and
- (b) about 95 parts to about 5 parts by weight of hydrogen octenyl butanedioate amylodextrin, the combined weight of (a) and (b) being 100 parts.
An encapsulating matrix composition extrudable at a pressure ranging from 1 to 10 atmospheres and having improved loading capacity comprising (a) from about 5 to about 95 parts by weight of maltodextrin and (b) from about 95 to about 5 parts by weight of hydrogen octenyl butanedioate amylodextrin, the combined weight of (a) and (b) being 100 parts by weight.
A method of preparing a stable, particulate essential oil composition, comprising the steps of
- (1) agitating and boiling a mixture of
- (a) from about 5 to about 95 parts by weight of maltodextrin;
- (b) from about 95 to about 5 parts by weight of hydrogen octenyl butanedioate amylodextrin;
- and
- (c) water;
- to form an encapsulating matrix composition, the combined weights of (a) and (b) being 100 parts by weight;
- (2) mixing an active ingredient with said matrix composition to form a slurry or emulsion composition;
- (3) extruding said slurry or emulsion composition into a cold solvent for the active ingredient to form an extrudate, the solvent being at a temperature effective to solidify the extrudate;
- and
- (4) comminuting the extrudate;
- the extrusion being carried out at a pressure in the range of about 1-10 atmospheres.
Dependencies are inferred from the claim text.