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    • 29. 发明公开
    • MICROENCAPSULATE AND PROCESS FOR THE MANUFACTURE THEREOF
    • MIKROKAPSULAT UND HERSTELLUNGSVERFAHRENDAFÜR
    • EP2315584A1
    • 2011-05-04
    • EP09788261.7
    • 2009-07-31
    • Feyecon B.V.Friesland Brands B.V.
    • Poortinga, Albert ThijsTrambitas, Daniela OanaHofland, Gerard Willem
    • A61K9/50B01J13/02
    • A61K9/5089A61K9/501A61K9/5026A61K9/5042A61K9/5047A61K9/5052B01J13/043
    • The present invention relates to a microencapsulate comprising microcapsules having a diameter of 0.1 mum to 25 mum, said microcapsules comprising: -a core particle having a diameter of 90 nm to 23 mum 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.
    • 本发明涉及一种包含直径为0.1〜25μm的微胶囊的微胶囊,所述微胶囊包含: - 直径为90nm〜23μm的核心颗粒,其含有至少3重量%的活性组分 核心颗粒; 和 - 完全包封核心颗粒并含有至少20wt。 选自纤维素醚,纤维素酯,玉米醇溶蛋白,虫胶,麸质,聚丙交酯,疏水性淀粉衍生物,聚乙酸乙烯酯聚合物,衍生自丙烯酸酯和/或甲基丙烯酸酯的聚合物或共聚物的疏水性聚合物的%和其组合; 其中所述核心颗粒包含释放触发组分和/或所述涂层含有释放触发组分,所述释放触发组分选自: - 具有37℃的吸水能力和pH7.0以下的水溶胀性聚合物 超过20wt。 %,在37℃和pH 2.0下的吸水能力至少为50wt。 %; 和 - 在37℃下具有水溶性,pH7.0小于1mg / ml,水溶性在37℃,pH为2.0的至少5mg / ml的食用盐; 当掺入含水食品,饮料,营养组合物或药物组合物中时,本发明的微胶囊剂不会释放包封的活性成分。 然而,摄入后,活性成分迅速释放。