| 자운영(Astragalus sinicus Linne) 종자 추출 Oil을 함유한 크림제조 및 피부 보습효과에 관한 연구 |
| 김란, 김한석 |
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| A Study on the Cream Containing Chinese Milk Vetch(Astragalus sinicus Linne) Seeds Oil and Its Skin Refreshing Effect |
| Ran Kim, Han-Seok Kim |
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| ABSTRACT |
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Chinese milk vetch is a bienniel grass of Leguminosae family and 36～54 kg per 10 ha is grown, but it naturally dies annually. Previous studies on Chinese milk vetch seeds reported its medicinal effect, antioxidation, and bioactive effect. Therefore, this study aims to analyse possibility to extract oil from Chinese milk vetch seeds, and stability and moisturizing effect of cream containing the oil extracted. In extracting oil using a reflux type extractor and ethylether as a solvent, about 160ml oil was extracted from a total of 2kg specimen. As a result of observing cream for which 3%, 5% and 8% of Chinese milk vetch seeds extracts oil was added to cream-type formula with an 200-power optical microscope, it was discovered that even liquid crystals were formed. When pH was measured eight weeks after making cream, pH of cream with 3% of Chinese milk vetch seeds extracts oil was 5.68, that of cream with 5% of the oil was 4.51, and that of the cream with 8% of oil was 4.12. When cream was applied on the forearm and a repeat measure Anova was performed based on means of moisture contents of stratum corneum, moisture contents of all the groups significantly increased for 60 minutes after the application and then began to decrease (p<.001). The moisture contents of the experiment group in which 3% of the oil(Cream A), 5%(Cream B), and 8%(Cream C)
were added began to increase significantly in comparison with the control group. The experiment group showed higher moisture contents even five hours after the application than the control group(p<.001). If further studies on how to extract oil from Chinese milk vetch seeds and its bioactive function are performed, the oil can be used for commercial cosmetic products. |
| Key words:
Chinese milk vetch seeds, Chinese milk vetch seeds extracts oil , skin refreshing, formation of liquid crystal, slightly acid |
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