Method for manufacturing an oil-in-water emulsion from an oily active substance, for cosmetic, food, or pharmaceutical use
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United States of America Patent
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May 11, 2021
Grant Date -
Nov 19, 2015
app pub date -
Dec 27, 2012
filing date -
Dec 27, 2012
priority date (Note) -
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Abstract
The invention relates to a method which includes the following steps: mixing hydrophilic components, including water and an emulsifying saponin which is less than 1% of the emulsion regardless of the proportion of the oily phase; mixing lipophilic components, including the oily active substance, which can reach 40% of the emulsion; a first homogenization of the two preceding phases using a rotor/stator or ultrasonic mixer until a mean diameter of less than 6 μm of the oily droplets is obtained; and a second homogenization of the preceding mixture using a high-pressure homogenizer until a mean diameter of less than 0.4 μm of the oily droplets is obtained.
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