Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Physicochemical and antioxidant properties in Allium hookeri by hot air-and freeze-drying methods

건조방법에 따른 삼채의 이화학적 성분 및 항산화 활성 비교

  • Lee, Joomin (Department of Food and Nutrition, Chosun University)
  • 이주민 (조선대학교 식품영양학과)
  • Received : 2015.11.02
  • Accepted : 2016.01.07
  • Published : 2016.02.28
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Abstract

The present study was undertaken to determine the changes of physicochemical and antioxidant activity using leaf and root in hot air-dried Allium hookeri (HA) and freeze-dried Allium hookeri (FA). The leaf of HA was higher level of moisture and crude fat compared with those of the leaf of FA. The crude fat content in root of HA was higher than that in FA. However, moisture, crude ash, crude protein and carbohydrate did not show any differences between two different drying methods. The organic acid contents of Allium hookeri root including oxalic acid, citric acid, tartaric acid, malic acid, succinic acid, lactic acid, formic acid, acetic acid showed the differences between hot air-drying and freeze-drying methods. The major minerals were Ca, K and Mg, which were higher level of the leaf of HA compared with those of FA. The leaf of HA showed the highest vitamin C content (801.65 mg/100 g). The content of vitamin E in the leaf of FA was higher than that of HA. The contents of total polyphenol and total flavonoid in the FA leaf were higher than that in HA. The DPPH radical-scavenging activity in leaf of HA (65.73%) was significantly higher than that of FA (57.73%).

본 연구는 삼채의 잎과 뿌리를 이용하여 열풍건조와 동결건조법에 따른 이화학적 성분, 총 폴리페놀, 총 플라보노이드 함량 및 항산화력을 비교 분석하였다. 건조방법에 따른 삼채 잎의 일반성분을 분석한 결과, 조회분, 조단백, 탄수화물 함량은 유의적인 차이를 보이지 않았다. 그러나 열풍건조 삼채 잎의 수분 함량과 조지방 함량은 동결건조 삼채 잎보다 유의적으로 높았다. 열풍건조 삼채 뿌리의 수분, 조회분, 조단백, 탄수화물 함량은 동결건조 삼채 뿌리와 유의적인 차이가 없었으며, 조지방 함량만이 동결건조 삼채 뿌리보다 유의적으로 높게 나타났다. 삼채 잎과 뿌리에서의 유기산 함량을 비교한 결과, 열풍건조 삼채의 뿌리는 동결건조 삼채 뿌리에 비해 oxalic acid, citric acid, tartaric acid, malic acid, succinic acid, lactic acid, formic acid, acetic acid에서 유의적인 차이를 보였다. 열풍건조 삼채의 잎은 tartaric acid를 제외한 모든 유기산 항목에서 동결건조 삼채의 잎과 비교하여 유의적인 차이를 보여주었다. 건조방법에 따른 삼채 잎과 뿌리의 주요 무기질은 Ca, K, Mg이며, 이들은 열풍건조 삼채 잎에 비해 동결건조 삼채 잎에서 유의적으로 낮게 나타났다. 비타민 C의 함량은 동결건조 삼채의 잎과 뿌리에 비해 열풍건조 삼채의 잎과 뿌리에서 유의적으로 높았다. 비타민 E는 열풍건조 삼채 잎에 비해 동결건조 삼채 잎에서 유의적으로 높게 나타났으나, 뿌리에서는 유의적인 차이를 보이지 않았다. 총 polyphenol 함량은 동결건조 삼채의 잎이 열풍건조 삼채의 잎에 비하여 높았으나 유의적인 차이는 없었으며, 총 flavonoid 함량은 동결건조 삼채의 잎이 열풍건조 삼채의 잎에 비하여 유의적으로 높았다. 삼채의 DPPH radical 소거능은 삼채 잎과 뿌리에서 건조방법에 따른 유의적인 차이를 보였으며, 삼채 뿌리보다 삼채 잎에서 DPPH radical 소거능이 더 뛰어남을 보였다.

Keywords

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