PMC:2812708 / 11380-12005 JSONTXT

{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/2812708","sourcedb":"PMC","sourceid":"2812708","source_url":"https://www.ncbi.nlm.nih.gov/pmc/2812708","text":"Parameters 1 and 2 determine the optical properties and bioavailability that are decisive for the commercial application profile. For smallest particle sizes, β-carotene is an H-aggregate while for the biggest particle sizes β-carotene forms J-aggregates. Intermediate particle sizes are assumed to integrate H- and J-aggregates in differing ratio (Auweter et al. 1999). Parameters 3 and 4 determine the thickness of the protection colloid layer, which is typically 40 nm in pure water. The buoyant density of gelatin is rather high (above 1.3 g/cm3), and cannot be matched with a non-interfering solvent such as heavy water.","tracks":[]}