Microencapsulate and process for the manufacture thereof

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United States of America Patent

PATENT NO 8637104
APP PUB NO 20110171349A1
SERIAL NO

13056969

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Abstract

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The present invention relates to a microencapsulate comprising microcapsules having a diameter of 0.1 μm to 25 μm, said microcapsules comprising: —a core particle having a diameter of 90 nm to 23 μm and containing at least 3% of the active component by weight of said core particle; and—a coating that fully envelops the core particle and containing at least 20 wt. % of a hydrophobic polymer selected from cellulosic ethers, cellulosic esters, zein, shellac, gluten, polylactide, hydrophobic starch derivatives, polyvinyl acetate polymers, polymers or copolymers derived from an acrylic acid ester and/or a methacrylic acid ester and combinations thereof; wherein the core particle contains a release trigger component and/or the coating contains a release trigger component, said release trigger component being selected from: —a water-swellable polymer having a water-uptake capacity at 37° C. and pH 7.0 of less than 20 wt. % and a water-uptake capacity at 37° C. and pH 2.0 of at least 50 wt. %; and—an edible salt having a water solubility at 37° C. and a pH of 7.0 of less than 1 mg/ml and a water solubility at 37° C. and a pH of 2.0 of at least 5 mg/ml; The microencapsulate of the present invention does not release the encapsulated active component when incorporated in water-containing foodstuffs, beverages, nutritional compositions or pharmaceutical compositions. Following ingestion, however, the active component is released rapidly.

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Patent Owner(s)

Patent OwnerAddress
FRIESLAND BRANDS B VSTATIONSPLEIN 4 AMERSFOORT 3818 LE
FEYECON B V2012 LG HAARLEM

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hofland, Gerard Willem Hoogmade, NL 8 11
Poortinga, Albert Thijs Apeldoorn, NL 18 41
Trambitas, Daniela Oana Voorburg, NL 6 7

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