아로니아(Aronia melancocarpa) 유래 안토시아닌 색소의 안정성

국문 초록 (Abstract)

아로니아 유래 안토시아닌 색소의 pH, 온도, 저장기간, 빛, 당 및 유기산에 대한 안정성을 조사하였다. 아로니아 색소는 pH 3.0에서 가장 안정하고 높은 흡수스펙트럼을 나타냈고 pH 4.0-7.0으로 증가함에 따라 색소의 강도가 감소하였다.
아로니아 색소는 고온에서 장시간 가열할수록 색소의 안정성은 감소하는 경향을 나타냈으며 암실보다는 일광에 노출하였을 때 색소의 파괴가 급격히 나타났다. 아로니아 색소는 냉동 온도에서 저장한 경우에는 저장기간이 경과하여도 비교적 안정하였으나 냉장온도에서는 저장기간이 경과함에 따라 아로니아 색소가 감소하는 경향을 보였다. 아로니아 색소에 당을 첨가한 경우 색소의 강도가 전반적으로 감소하였고, 0.1M 당을 첨가시 색소의 강도는 maltose, galactose, sucrose, glucose 및 fructose 순으로 낮은 색소의 잔존율을 보였다. 아로니아 색소는 50 mM 농도의 유기산의 존재하에서 가장 안정하였으며 저장기간이 길어짐에 따라 첨가한 모든 유기산에서 색소의 강도가 감소하는 경향을 나타냈다. 이상의 결과는 향후 아로니아를 활용한 가공식품 및 천연 식품색소 개발을 위한 기초 자료로 활용할 수 있을 것으로 사료된다.

다국어 초록 (Multilingual Abstract)

The purpose of this study was to investigate the effects of pH, temperature, light, sugars, and organic acids on the stability of anthocyanin pigments extracted from aronia (Aroniamelanocarpa). Pigments from aronia were most stable at pH 3.0, with maximal absorbance at 514 nm. High temperatures and prolonged heating substantially reduced anthocyanin contents. Anthocyanin levels were as low as approximately 21.70 and 79.63% of normal levels after 300 min of heating at 30 and 100oC, respectively. All of the sugars tested decreased the abundance of aronia pigments, with the levels highest in the presence of maltose, and decreasing progressively in the presence of galactose, sucrose, glucose, and fructose. Among the organic acids tested, citric acid was the most effective in stabilizing the aronia pigment, followed by tartaric acid, malic acid, formic acid, and ascorbic acid. These results provide useful reference data for efforts to use pigments from aronia in processed foods or for developing natural food colorants.

목차 (Table of Contents)

• Abstract
• 서론
• 재료 및 방법
• 결과 및 고찰
• 요약
• References

참고문헌 (Reference)

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