Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V.;University of Copenhagen
发明人:
申请号：
EP13190091.2
公开号：
EP2865443A1
申请日:
2013.10.24
申请国别(地区):
EP
年份:
2015
代理人:
摘要：
A capsule, namely a nanocapsule, microcapsule or macrocapsule, comprises a shell and a core, wherein the core contains at least one compound being at least at any temperature between more than 0°C and 80°C at 101,325 kPa a liquid, and wherein the shell comprises semicrystalline cellulose nanofibers and/or semicrystalline cellulose nanocrystals having each a crystallinity index of at least 30%. These capsules have in particular a very low oxygen permeability and thus protects the liquid included in its core from oxygen. Accordingly, these capsules may be used for protecting for example food or food ingredients from oxygen. In addition, these capsules may be used to protect photoactive compounds from oxygen, such as phosphorescent compounds and photon upconversion compositions, in particular triplet-triplet annihilation upconversion compositions.
