Journal of Sericultural and Entomological Science (한국잠사곤충학회지)

Korean Society of Sericultural Science (한국잠사학회)
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Processing method of mulberry fruit juice improved C3G stability

Cyanidin-3-glucoside의 안정성을 향상시킨 오디즙 가공방법

  • Received : 2013.09.16
  • Accepted : 2013.10.11
  • Published : 2013.11.30
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Abstract

As mulberry fruit's functionalities are known to the media, the interest in promoting of consumption and processed products is increasing. But there is no C3G(Cyanidin-3-glucoside) data based on the stability of the pigment during processing. To solve this problems, and to expand the use of mulberry fruit, processing methods was developed for mulberry fruit juice improved cyanidin-3-glucoside(C3G) stability. The results obtained are summarized as follows. The food additive citric acid with 0.3 % improved C3G content and antioxidant ability in the treatment of mulberry fruit and sucrose the ratio of 50 % : 50 %(w/w). In the case of the addition of oligosaccharides, citric acid decreased antioxidant ability. Xylitol treatment showed up the lowest of C3 content, but by the addition of citric acid improved the pigment content and antioxidant activity of the mulberry fruit juice. Addition of citric acid was more affected C3G stability than containers (clear glass bottles, brown glass bottles, aluminum foil, green glass bottle, translucent glass bottles). In the processing of mulberry juice, 3 minutes blanching treatment using microwave dropped C3G content somewhat. Therefore, using this method is not recommended. However in the antioxidant ability, microwave blanching showed a stabilizing effect compared to the other treatments.

오디의 기능성이 언론에 홍보됨에 따라 오디 소비 촉진 및 가공제품에 관한 관심이 증대되고 있으나 오디즙 가공시 기능성 물질인 C3G 색소의 안정성에 관한 기초자료가 없는 실정이다. 이러한 문제점을 해결하고 오디의 이용확대를 위해 항산화색소 C3G의 안정성을 향상시킨 오디즙 가공방법을 개발하였다. 그 결과를 요약하면 다음과 같다. 1. 오디와 서당의 비율을 1 : 1로 하여 용기에 담고 식품첨가제인 구연산을 0.3% 첨가하는 것이 C3G 함량과 항산화능을 향상시키는 가장 좋은 방법이다. 올리고당의 경우 구연산을 첨가하는 것이 오히려 항산화능을 떨어뜨리므로 사용하지 않는 것이 좋다. 자일리톨의 경우 가공방법 중 가장 낮은 C3G 함량을 나타냈으나 구연산을 첨가하면 색소함량과 항산화능을 향상시키므로 반드시 구연산을 첨가한다. 2. 보관용기(투명유리병, 갈색유리병, 알루미늄 호일, 녹색유리병, 반투명유리병)보다 구연산의 첨가가 항산화색소 C3G의 안정성에 영향을 미치는 것으로 판단된다. 3. 오디즙 가공시 전자렌지를 이용하여 3분간 blanching 하여 색소의 안정성에 관여하는 효소를 불활성화 시키는 방법은 항산화색소 C3G 함량을 다소 떨어뜨리므로 냉동오디를 그대로 사용하는 것이 바람직하나 항산화능에 있어서는 보존기간동안 타 처리구에 비해 안정화시키는 효과를 나타냈다.

Keywords

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