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Change of Biological Activity of Melon (Cucumis melo L.) according to Frozen Storage Period

냉동저장기간에 따른 멜론(Cucumis melo L.)의 생리활성 변화

  • Published : 2009.12.31

Abstract

The change of biological activities of melon were investigated during frozen storage. The total phenolic concentrations in melon juice and water extract were 296.25 and $433.25\;{\mu}g/mL$, respectively. The total flavonoid contents in melon juice and water extract were 20.83 and $53.58\;{\mu}g/mL$, respectively. Antioxidant activities of melon juice and water extract were determined. The DPPH of water extract of melon (85.84%) was higher than the melon juice (60.58%). ABTS of melon juice and water extract were 94.50 and 99.30%, respectively. SOD-like activity and xanthine oxidase inhibitory activity of melon of water extracts were higher than those of melon juice. $\alpha$-Glucosidase inhibitory activity of melon juice and water extract were 22.42 and 23.43%, respectively. The changes in the antioxidant activity of melon was insignificant until 6 months of frozen storage. Therefore, it was expected that frozen storage of melon was useful preservation expedient for consistent supply of raw materials.

멜론의 가공방안을 높이고, 안정된 수급과 식품소재로 활용하기 위해 냉동저장과 추출방법에 따른 생리활성 변화를 조사하였다. 냉동저장기간(3, 6개월)에 따른 멜론의 총 phenol 함량은 멜론즙이 $296.25\;{\mu}g/mL$, 열수추출물은 $433.25\;{\mu}g/mL$로 나타났다. 또한 총 flavonoid성 함량은 멜론즙이 $20.83\;{\mu}g/mL$로 나타났고, 열수추출물은 $53.58\;{\mu}g/mL$로 나타났고, 냉동저장기간 동안 총 phenol 함량과 총 flavonoid성 함량은 비교적 차이가 없었다. 멜론의 항산화 효과는 전자공여능이 멜론즙과 열수추출물이 각각 60.58%, 85.84%로 나타났고, ABTS는 각각 94.50%, 99.30%로 높게 나타났다. SOD 유사활성은 열수추출물이 27.5%인 반면 멜론즙의 경우 거의 효과를 나타내지 않았다. Xanthine oxidase의 저해활성의 경우 멜론즙이 41.76%, 열수추출물은 61.29%로 높은 저해율을 나타내었고, 열수추출물이 다소 높게 나타났다. $\alpha$-Glucosidase 저해활성은 멜론즙이 22.42%, 열수추출물은 23.43%로 비교적 유사한 저해율을 나타내었다. 냉동기간에 따른 항산화 효과는 비교적 차이가 없었다. 이러한 결과로 냉동 저장 시 항산화활성의 차이가 거의 없음으로 연중 원료의 안정적인 수급과 식품소재로 활용이 가능할 것으로 사료된다.

Keywords

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