국내산 청과물 (자두)의 품질 영양표시에 관한 연구
Quality and Nutrition Labeling Study of Domestic Fruit (Plum)
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초록
청과물의 품질 영양표시 모델을 개발하기 위하여 경북 의성군 옥자두를 대상으로 품질 및 영양적 성분을 분석하고 품질 영양표시 모델을 확립하였다. 일반성분은 수분 92%, 조단백 0.74%, 조지방 0.64%, 조섬유 1.65%, 조회분 0.32%, 무질소물 4.29%로 확인되었으며, 열량은 32 kcal/100g 으로 계산되었다. 당도는 10.33 ± 0.85 Brix°로, 산도는 1.08 ± 0.12%로 나타났으며, 자두의 비타민 C 함량은 7.307 ± 0.317 mg%로 나타났다. 무기질은 황, 칼륨, 칼슘, 나트륨, 마그네슘 등의 순으로 함량이 높았고, 주요 유리당으로는 과당, 포도당, 자당로 나타났다. 유기산으로는 호박산, 사과산, 구연산이 확인되었다. 총 페놀화합물의 함량은 과육과 과피 간에 현저하게 차이를 보였으며 전과로는 75.55 ± 0.73 mg%의 함량을 보였다. 품질 표시에는 당과 산 함량, 영양 정보 표시에는 열량, 미네랄, 비타민 C, 총 페놀 성분이 표기된 자두의 품질 영양 표시 모델을 개발하여 제시하였다.
Abstract
In order to develop a model on the quality and nutrition label of Korean fruit, plum, we first examined the quality and nutritional characteristics of Korean plum, ChooHee. The contents of moisture, crude protein, crude fat, crude fiber, crude ash and N-free extract were 92%, 0.74%, 0.64%, 1.65%, 0.32%, 4.29%, respectively. Thus the total calorie of the sample was 32 kcal/100 g. The contents of sugar, acidity and Vitamin C were 33 ± 0.85 Bx°, 1.08 ± 0.12% and 7.037 ± 0.317 mg%, respectively. The principle minerals were S, K, Ca, Na, and Mg. Major free sugars were fructose, glucose and sucrose and major organic acid were succinic acid, malic acid and citric acid. The difference of contents of total phenols between peel and flesh parts were considerable. The total phenolic contents of whole fruit were 75.55 ± 0.73 mg%. On the above results, the quality and nutrition label of Korean plum were developed in the first time. We expect that this study on labeling could play an important role to the quality control and marketing of Korean agricultural products.
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