한국식품저장유통학회지 (Korean J. Food Preserv.) 제18권 제3호 (p.414-422)

자색 고구마추출물의 기능성 화장품 활성

Biological Activity in Functional Cosmetic of Purple Sweet Potato Extracts
키워드 :
Functional properties,cosmetic,whitening,anti-inflammation,purple sweet potato

초록

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.