Stability evaluation of natural color from Ascidian shell Extract

• 발행기관: 한국응용과학기술학회 (구.한국유화학회)
• 저자명: Sin Ho Park Jae Chan Yang
• 간행물 정보: 『한국유화학회 학술대회 논문집』2017년 추계학술대회, 29~37쪽, 전체 9쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2017.11.02

영문 초록

In this study, Ascidian shell was extracted with 100% EtOH as solvent and diluted with DMSO afterwards to evaluate its color stability. Light absorbance according to pH and numerical data measured with color-difference meter were studied. As a result, absorbance at pH7 and ±a were the most stable. When exposed to sunlight, absorbance was decreased to more than 70% and ±a was decreased to 87%. As we evaluated the stability regarding temperature, a major decrease in absorbance and ±a could be observed at 45℃. Decrease rates dropped in descending order at 25℃, and 4℃, revealing that there is a tendency to destabilize as temperature increases. By adding antioxidants and EDTA-3Na, stability tended to increase. α-tocopherol and Glutathione were the most effective antioxidants.

목차

Abstract

Ⅰ. 서론

Ⅱ. 실험 방법

Ⅲ. 결과 및 고찰

Ⅳ. 결론

Ⅴ. 참고문헌

키워드

stability Ascidian shell natural color red pigment