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KMID : 0903520050480040404
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Journal of the Korean Society of Agricultural Chemistry and Biotechnology
2005 Volume.48 No. 4 p.404 ~ p.410
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Stability and Rheology of Cream Containing Sopoongsan
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An Bong-Jeun
Lee Jin-Young
Lee Chang-Eon
Son Jun-Ho
Park Jung-Mi
Park Tae-Soon
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Abstract
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Sopoongsan is an oriental medicinal composition including 12 medicinal herbs. Sopoongsan is known to have anti-inflammatory, antimicrobial, anti-allergic, and anticancer effects on human skin. The results of stability test showed that the creams containing Sopoongsan extracts were very stable at both accelerated temperature conditions and sun-light. And pH and viscosity of each cream did not change greatly for 56 days. From the particle size and rheological measurements, it can be known that when the amount of the Sopoongsan extracts increases, the mean value of particle size decreases, and the value of the complex modulus and loss angle increases, which means the Sopoongsan extracts help stabilize the emulsion. From the result of human patch test to assess the safety of cream containing Sopoongsan extracts, there was no stimulus of negative reaction on skin. In result of the user tests, it can be known that the higher concentration of the Sopoongsan was preferred by customers.
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KEYWORD
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Sopoongsan, oscillatory shear, surface tension, particle size, stability
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