제조방법에 따른 마 스낵의 성분 변환
Changes on the Components of Yam Snack by Processing Methods
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참고문헌
초록
본 연구는 각종 약리 및 기능성을 함유한 마의 소비증대와 부가가치 증대를 위하여 새로운 마의 가공식품인 마 스낵을 개발하고자 당절임 최적조건에서 당절임한 마스낵의 제조방법에 따라 성분변화를 조사하였다. 수분함량은 열풍, 진공 건조한 것에 비해 동결건조한 것이 높았고, 탄수화물 함량은 반대되는 경향이었다. 수용성 단백질 함량은 동결건조한 것에서 6.43 mg/100 g으로서 열풍 및 진공 건조한 것에 비해 낮았으나, 총당과 환원당의 함량은 건조방법에 따라 뚜렷한 차이가 없었다. 주요 유기산은 malic, acetic, citric acid이었고, acetic acid와 citric acid의 함량은 동결 건조한 것에 비해 열풍, 진공 건조한 것에 많았고, malic acid는 열풍 및 진공 건조한 것에 비해 월등히 높았다. 구성아미노산 중 대부분의 아미노산과 총 유리아미노산의 함량은 진공 건조한 것에 가장 많았고, 다음으로 열풍, 동결 건조한 순이었으며, 유리아미노산의 함량은 큰 차이가 없었다. 총 비타민 C의 함량은 건조방법에 따라 차이가 없었으나, 환원형 비타민 C는 열풍, 진공 건조한 것에 비해 동결 건조한 것에서 많았고, 산화형 비타민 C는 동결건조한 것에서 가장 낮았다. 무기질의 함량은 칼륨, 나트륨, 마그네슘의 함량이 높았다.
Abstract
The study was intended to develop a yam snack to increase the consumption and the added value of the yam which has many kinds of medicinal effects and functions. Moisture content of a freeze-drying yam snack was higher than those of hot wind drying and vacuum drying yam snack. However, carbohydrate content was opposed to it. The content of soluble proteins in freeze drying yam snack was 6.43 mg/100 g, and lower than that those in hot wind drying and vacuum drying yam snack. The contents of total sugar and reducing sugar were not noticeably different by processing methods. The major organic acids of yam snack were malic, acetic, acids, and acetic acid. Citric acid were rich contented in hot wind and vacuum dried yam snack, but the content of malic acid in freeze dried yam snack was higher than those in hot wind and vacuum dried yam snack. The contents of the amino acids and total amino acids showed the highest contents in vacuum dried snack and the next came in hot wind dried snack and freeze dried snack order. The content of free amino acids were not different by processing methods. Total content of vitamin C were not different by processing methods, but a ascorbic acid was higher in freeze dried yam snack than those in other. The dehydroascorbic acid contents of the hot-air and vacuum dried snack was higher than those of the freeze dried snack. Potassium, sodium and magnesium were the main minerals of the yam snacks.
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