Skin external preparation composition containing lotus seed extract
A technology for extracts and compositions, applied in the field of skin external preparation compositions, can solve the problems of poor extraction effect, no research on cosmetic compositions, complicated preparation process, etc.
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[0019] The preparation method of the lotus seed extract used in the present invention is not particularly limited, and the extract includes: extracts extracted from lotus seeds, decocted, or concentrated solutions obtained by concentrating part or all of the extracts, or dried and prepared from the concentrated solutions The original solution, as well as the chemical substance itself that exerts the main effect contained in the extract.
[0020] Specifically, the lotus seed extract is preferably extracted using a subcritical water extraction method (Subcritical Water Extraction). In the supercritical extraction method used in the past, the density of the supercritical fluid is similar to that of a liquid, and its viscosity and diffusion coefficient are similar to those of a gas. Therefore, when the supercritical fluid is used as an extraction solvent, it can easily penetrate into the microscopic pores of the plant body, obtain an appropriate molecular density, surround the mol...
Embodiment 1
[0031] Embodiment 1 germinated lotus seed extract
[0032] The lotus seeds in the germinated state are put into a solvent of 70% by weight of purified water and 30% by weight of ethanol, and placed at 25° C. for 6 hours to extract active ingredients. After extraction, filter once in a filter with 3 μm pores and once in a filter with 1 μm pores to eliminate foreign matter, and finally use a sterilizing filter to eliminate microorganisms to obtain germinated lotus seed extract.
Embodiment 2
[0033] Embodiment 2 subcritical lotus seed extract
[0034] Use a subcritical extraction device to extract active ingredients from ungerminated lotus seeds at 40°C and 20MPa for 4 hours. After extraction, filter once in a filter with 1.2 μm pores, once in a filter with 0.45 μm pores, and once in a filter with 0.2 μm pores to eliminate foreign matter and microorganisms to obtain subcritical lotus seed extract .
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