• 대한영양사협회학술지
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• 제13권1호
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• pp.61-72
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• 2007

In order to study milk preference and intake pattern of adolescents, the questionnaire survey was conducted with 929 middle and high school students residing in Chungnam cities through October and November 2004. Of the subjects, 56.3% liked milk or liked very much. They preferred chocolate and fruit-tasted milk to plain milk. Reasons for liking milk were for health and its taste, while the reasons of disliking were unpleasant smell and stomach upset. However those who disliked milk did like milk products such as ice-cream, yogurt or cheese. Of the students 35.1% drank milk 2 times or more a day, while 11.8% drank milk less than 2-3 times a month. As a whole they drank milk 8.6$\pm$6.7 times a week, of which 4.3$\pm$3.1 times for plain milk. Daily intake amount was estimated as 308$\pm$315mL. Middle-school students and boys drank more milk than high-school students and girls, respectively. Among the students 64.3% used to drink 1 cup of milk at a time, and 58.3% drank only milk without other foods. It was shown that 51.8% took milk school-serviced and their milk intake frequencies were higher than those of who were not given school milk service. Also milk intake frequencies was higher in students whose mother were housewives than in students whose mother had jobs. Milk preference, intake frequency, and one portion size showed significant and positive correlations each other. In conclusion, milk intake level of the subjects was insufficient and unpleasant smell and stomach upset were the main reasons which decreased milk preference and consumption. Students with low milk preference should be guided with how to drink milk deliciously, how to choose milk type and its products. It is also effective to go into school milk service and to provide milk at home anytime. As students like much fruit-tasted and chocolate milk, the milk processing industries should take their nutritional and health benefits into considerations importantly.

• 동아시아식생활학회지
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• 제22권5호
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• pp.613-623
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• 2012

In this study, the quality characteristics of salad dressing prepared with mulberry, Schisandra chinensis, and Discorea powder were evaluated. Salad dressing was prepared with salad base (plain yogurt : mayonnaise : fresh cream = 8:1:1), mulberry, Schisandra chinensis for acidity, and Discorea powder for viscosity (4:4:6:1 or 4:4:6:3). Discorea powder was added at levels of 0, 7, and 18% to the salad dressing. As the concentration of Discorea powder increased, the pH level increased, and acidity decreased. Hunter's color L (lightness) value of salad dressing decreased as the amount of Discorea powder increased. Viscosity increased according to the amount of Discorea powder. Moreover, total phenolic content increased according to the amount of Discorea powder. Further, DPPH antioxidant and hydroxyl radical activity of mulberry salad dressing increased as the amount of Discorea powder increased. Sensory preference test results showed that the salad dressing added with Discorea powder had higher scores for color, flavor, taste, and texture than the control. Regarding overall preference, salad dressing containing 7% Discorea powder had the highest scores among the treatments. From these results, salad dressing containing mulberry, Schisandra chinensis for acidity, and Discorea powder for viscosity could be a functional salad dressing with high antioxidant activity.

• Food Science and Biotechnology
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• 제17권5호
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• pp.996-1002
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• 2008

Pickled hen egg dipped in brewed apple vinegar for 7 and 14 days was prepared and changes of weight, pH, viscosity, calcium content, antioxidative effect, and sensory characteristics were determined. During a pickling, the egg weight was increased from 62.03 g at day 0 to 91.13 and 94.93 g at day 7 and 14, respectively. The pH of the egg white and yolk, initially at pH 10.24 and 6.56, was decreased, while that of the pickling solution was increased by the pickling days. Viscosity of the pickled egg white was significantly decreased with the pickling days (p<0.05). Significant antioxidative effect was found from the pickled egg mixture (egg white:yolk=1:1). Calcium content of the egg white after 7 and 14 days of the pickling was 280-300 times higher than the fresh egg white and 1.9 times higher than fresh egg yolk. Addition of plain yogurt and honey improved the sensory quality of a pickled egg and was able to mask the unpleasant sour taste. Results suggest that, in addition to the use of pickled egg by itself, egg-based foods such as mayonnaise with enforced calcium content can be developed using a pickled egg.

• Journal of Nutrition and Health
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• 제53권5호
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• pp.503-517
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• 2020

본 연구는 2007-2015년 국민건강영양조사 자료를 이용하여 아동과 청소년 (6-18세, n = 10,043)에서 연도별 우유 섭취 실태와 우유비섭취군과 우유섭취군의 영영상태를 비교 분석하였다. 그 결과 흰우유 섭취량은 연도에 따라 감소한 반면 (남자 p = 0.0199, 여자 p < 0.0001, 전체 p < 0.0001), 가공우유 섭취량 (초등학생 p = 0.0304, 전체 p = 0.0419)과 유제품 섭취량 (남자 p = 0.0002, 여자 p < 0.0001, 초등학생 p < 0.0001, 중학생 p < 0.0001, 고등학생 p = 0.0426)은 증가하였다. 그러나 연도별로 우유 및 유제품의 총 섭취량뿐만 아니라, 우유비섭취군과 우유섭취군 비율은 유의적인 변화가 없었다. 학교급별 우유섭취군 비율은 초등학생 59.7%, 중학생 44.7%, 고등학생 35.2%이었으며, 모든 학교급에서 우유섭취군에 남학생이 여학생보다 더 많았다 (p < 0.01). 모든학교급에서우유섭취군의칼슘 (p < 0.001), 인 (p < 0.001), 리보플라빈 (p < 0.001) 섭취량은 우유비섭취군보다 유의적으로 높았다. 모든 학교급에서 우유비섭취군의 영양불량 분율이 유의적으로 높았고, 특히 초등학생에서 이 분율이 가장 높았다. 우유비섭취군의 칼슘부족 분율이 우유섭취군에 비하여 유의적으로 높았다 (초등학생 15.7배 [p < 0.001], 중학생 12.1배 [p < 0.001], 고등학생 10.3배 [p < 0.001]). 이상에서 전체 대상자의 흰우유 섭취량이 연도별로 감소하였고, 모든 학교급에서 우유섭취군의 영양소 섭취 및 영양상태가 우유비섭취군보다 유의적으로 좋았다. 따라서 아동과 청소년 시기에 우유를 매일 2컵 이상 섭취할 수 있도록 영양교육을 강화하고, 학교우유급식을 통해 우유 섭취를 증가시킨다면 성장기의 칼슘을 포함하는 영양상태 개선에 도움이 될 것으로 생각된다.

• 한국식품조리과학회지
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• 제28권5호
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• pp.531-540
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• 2012

본 연구는 지방함량이 낮고 건강지향적인 고품질 오디 샐러드드레싱 개발을 위해 식초대신 오미자, 점도를 높이기 위해 생마즙을 사용하여 샐러드 드레싱을 제조하고 그 이화학적 특성 및 항산화성을 분석하였다. 샐러드 드레싱에 첨가되는 재료는 샐러드베이스(플레인 요거트:마요네에즈:생크림=8:1:1):오디분쇄물:오미자청:생마즙=4:4:6:1 또는 4:4:6:3 으로 첨가하였으며, 이때 첨가된 생마는 전체 샐러드 드레싱의 0,7, 18% 수준이었다. 샐러드 드레싱의 pH는 생마즙이 증가할수록 높아졌으며, 산도는 낮아졌다. 점도는 생마즙을 첨가하지 않은 대조군은 83.20 cP로 낮았으나, 생마즙 첨가량이 증가할수록 점도는 유의적으로 증가하여 생마즙 7%첨가군은 113 cP, 18% 첨가군은 125 cP 를 나타내었다(p<0.001). 유화 안정성은 생마즙 첨가량과 관계없이 49-50으로 일정한 값을 나타내었다. 색도 중 명도와 황색도는 생마즙 첨가량이 증가할수록 높아지는 경향을 나타내었다. 총 페놀성 화합물 함량은 대조군이 0.087 mg/g 이었으며, 생마즙 7% 첨가 오디 샐러드 드레싱은 0.101 mg/g, 생마즙 18% 첨가 오디 샐러드 드레싱은 0.122 mg/g 으로, 생마즙 함량이 증가할수록 총 페놀성 화합물 함량이 증가하였다. DPPH 라디칼 소거능 $IC_{50}$ 값은 대조군이 34.4 mg/mL, 생마즙 7% 첨가군이 32.3 mg/mL, 18% 첨가군이 29.7 mg/mL으로 생마 첨가량이 증가할수록 DPPH 라디칼 소거능의 $IC_{50}$ 값이 낮아져 샐러드 드레싱의 항산화능이 증가하였다. Hydroxyl 라디칼 소거능의 $IC_{50}$ 값은 대조군이 16.556 mg/mL, 7% 첨가군은 14.297 mg/mL, 18% 첨가군은 11.812 mg/mL 으로, 생마즙 함량이 증가할수록 hydroxyl 라디칼 소거능은 증가하였다. 관능적 특성으로 기호도 검사 결과, 외관, 향, 맛, 조직감에서 대조군에 비하여 생마즙 첨가군이 높았으며, 전반적인 기호도는 7% 첨가군이 가장 높았다. 이상의 결과로부터 오미자와 생마즙을 첨가한 오디 샐러드 드레싱 제조시 7%의 생마즙을 첨가할 경우 윤기, 색, 점도, 맛, 향, 기호도면에서 우수할 뿐 아니라 항산화성이 우수하여 고품질 천연 샐러드드레싱으로서 상품화 가능성이 높을 것으로 사료된다.