본 연구는 멍게 껍질을 100.0 % 에탄올 용매로 추출한 후 DMSO로 희석하여 색소안정성을 평가하였다. pH에 따른 흡광도와 색차계 값을 측정한 결과 pH 7.0에서 흡광도와 색도의 ±a값이 가장 안정하게 나타났다. pH 3.0에서 흡광도의 감소가 나타났고 색도의 ±a값이 감소하여 멍게 껍질 색소는 pH가 중성에 가까울수록 변색방지의 효과가 있을 것으로 판단된다. 항산화제 첨가시 색소의 흡광도가 증가하였으며 α-tocopherol과 Glutathione이 가장 우수한 효과를 나타내었다.

In this study, Ascidian shell pigment was extracted, first using a 100.0 % ethanol solvent, proceeding with the dilution of it with DMSO (Dimethyl sulfoxide). The extracted pigment was evaluated to verify the stability. The absorbance of light have been evaluated according to pH levels and using the color-difference meter. As a result, it could be seen that absorbance and chromaticity ±a values were most stable at a pH level of 7.0 By keeping the sample at a pH level of 3.0, it could be observed that the absorbance and the chromaticity ±a values were decreased. Based on this observation, it can be deduced that the discoloration of the pigment can be prevented if kept at a neutral pH level. When antioxidants were added, the absorbance of the pigment increased, and the best effects could be seen in the α-tocopherol and glutathione samples.

요 약
 Abstract
 1. 서 론
 2. 실 험
  2.1. 실험 재료
   2.1.1. 시료, 시약 및 기기
   2.1.2. 동결 건조
   2.1.3. 시료 추출
  2.2. 실험 방법
   2.2.1. pH에 따른 색소 안정성 평가
   2.2.2. 항산화제첨가에 대한 안정성 평가
   2.2.3. 색도 측정
 3. 결과 및 고찰
  3.1. pH에 따른 색소 안정성 평가 결과
  3.2. 항산화제 첨가에 대한 안정성 평가 결과
 4. 결 론
 References

• 박신호(목원대학교 테크노과학대학 생의약화장품학부, Mokwon University, College of Sciences & Technology, Division of Biomedicinal & Cosmetics) | Sin-Ho Park
• 양재찬(목원대학교 테크노과학대학 생의약화장품학부, Mokwon University, College of Sciences & Technology, Division of Biomedicinal & Cosmetics) | Jae-Chan Yang Corresponding author