논문 상세보기
pp.414-422
자색 고구마로부터 페놀성 화합물 추출 최적 조건은 50% 에탄올로 12시간 추출하였을 때 최대 용출량을 나타내었다. 불과 50% 에탄올을 용매로 하여 제조한 자색 고구마 종류별 추출물의 항산화 활성 측정 결과 전자공여능, ABTS, PF 측정에서 일반 고구마에 비하여 자색 고구마 자미, 신자미, 연자미 품종 모두 높게 나타났으며, TBARs 측정결과 모든 추출물에서 30% 이하로 낮은 TBARs 생성 억제활성을 나타내었다. 피부상재균에 대한 최소
The optimum condition for phenolics contents extraction from purple sweet potato was 12 hrs. in 50% ethanol. The electron donating scavenging activities (DPPH), ABTS radical cation decolorization (ABTS) and antioxidant protection factor (PF) of Jami, Yeonjami and Shinjami were higher than general sweet potato, and thiobarbituric acid reaction substance (TBARs) was below 30%. The minimum inhibitory concentration (MIC) against Staphylococcus aureus and Escherichia coli on skin were each 5,000 and 2,500 ppm in all purple sweet potatoes, and MIC of Jami was the lowest as 2,500 ppm against Staphlococcus epidermidis. The whitening (tyrosinase inhibitory) activity of purple sweet potatoes was the highest as 62.5% and 48.7% in Jami water and ethanol extracts. The anti-inflammation (hyaluronidase inhibitory) activity of purple sweet potatoes was the highest as 25.3% and 94.4% in Jami water and ethanol extracts. The safety of cosmetic with Jam; extracts was assessed by various safety profiles. pH and viscosity change of essence for 90 days was not detected. Cosmetic was stable to temperature and light for 90 days. The result to measure changes of skin color and pore size of the skin was that an aged skin was more effective than young skin.
