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심영현(Young Hyn Shim),유창희(Chang Hee Yoo),차경희(Gyung Hee Cha) 한국식품조리과학회 2001 한국식품조리과학회지 Vol.17 No.4
This study was carried out to observe the changes of Oiji quality during fermentation by preparing the samples with various functional ingredients (Chinese pepper(Sancho), onion, Pine leaves) exerting antimicrobial effect. The pH values of all experiment groups decreased significantly in proportion to the ripening period(P<0.05). Control and Chinese pepper-added groups showed a rapid decrease in pH afrer 5 days of ripening, and Onion- and Pine leaves-added groups after 3 days of ripening. All experimental groups showed the lowest pH value at the 20th day of ripening. Rapid permeation of salt solution occured in all groups at the 3rd day of ripening. But the increase rate of salt permeation decreased gradually after 3 days of ripening. Lightness and redness in color decreased gradually in all groups, but the redness of Pine leaves-added group increased at the 30th day of ripening. Yellowness of control group was higher than that of others after 10 days of ripening(P<0.05), and the yellowness of pine leaves-added Oiji was the lowest among all after 5 days of ripening(P<0.05). The maximum cutting force of raw cucumber was observed at stem end followed by blossom end and middle part, and the Oiji samples also showed the same order at the early stage of ripening. In general, maximum cutting force of minor ingredient-added Oiji was higher than that of control and maximum cutting force was decreased at the 30th day of ripening. Onion-added group showed the highest value among all at the 40th day of ripening. Chinese pepper-added group was ranked low, but onion- and pine leaves-added groups were ranked high in sensory evaluation.
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배정숙,유창희,이경은,Bae, Jeong-Sook,Yoo, Chang-Hee,Lee, Kyung-Eun 한국식품조리과학회 2016 한국식품조리과학회지 Vol.32 No.4
Purpose: The study was conducted to analyze the change in quality characteristics of Ddukguk Garaedduk and Ddukgukdduk by the frequency of extruding rice dough. Methods: Ddukguk Garaedduk samples were made by extruding and shaping rice flour dough 2, 3, and 4 times; while Ddukgukdduk samples were made by drying the Ddukguk Garaedduk at room temperature for 48 hours and slicing them in slices of 0.3 cm thickness. Results: Significant differences were not found in water content by the extrusion frequency for Ddukguk Garaedduk and Ddukgukdduk. The adhesiveness and springiness of Ddukguk Garaedduk with a 4 times extrusion were significantly higher than those of Ddukguk Garaedduk with a 2 times extrusion. Ddukgukdduk with a 4 times extrusion generated finer cells and a more even distribution of cells than the other samples, as observed by scanning electron microscopy. Upon boiling, significantly more water was absorbed in Ddukgukdduk of a 2 times extrusion than in that of a 4 times extrusion. Hardness and adhesiveness scores of the cooked Ddukgukdduk were the highest, and springiness was the lowest in the sample with the 4 times extrusion. Conclusion: The extrusion of rice dough makes the structure of Ddukguk Garaedduk finer and more even, which results in the increased adhesiveness of Ddukguk Garaedduk. When cooking Ddukguk, Ddukgukdduk that has been extruded more absorbs less water and dissolves less solids, which maintains the chewiness and structure of cooked Ddukgukdduk.
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결식아동을 위한 가정배달 도시락의 생산과 배달과정 중 미생물적 평가
문정아 ( Jeong A Moon ),유창희 ( Chang Hee Yoo ),이경은 ( Kyung Eun Lee ) 대한영양사협회 2013 대한영양사협회 학술지 Vol.19 No.3
The purpose of this study was to assess the microbiological quality of home-delivered meals during production and delivery for children from low-income families. Production flows from a facility in Seoul that provides home-delivered meals were analyzed and the time-temperature of the food was measured. Microbiological assessment was performed for the production environment, personal hygiene, and food samples at each production and delivery step based on the process approach. It took 2 hours or longer from completion of production to meal delivery. An aerobic colony count (ACC) and coliform were not detected at knives, cutting boards, and dish towels. However, ACC (at pre-preparation, preparation, and packing areas) and coliform (at the preparation area) were detected on the hands and gloves of employees. Air-borne bacterial counts varied according to day and preparation area (ND∼6 CFU/plate/15 min). Food temperatures, on the completion of production and meal delivery, fell into temperature danger zones. ACC and coliform counts of raw ingredients did not decrease after pre-preparation (washing and sanitizing) for menus involving food preparation with no cook step. ACC decreased after cooking step for menus of food preparation with cook step, but the ACC of the stir-fried and seasoned dried filefish fillet on the completion of cooking was too numerous to count due to improper heating. The ACC of seasoned young Chinese cabbages (a menu with complex food preparation) increased during delivery (from 2.5 log CFU/ml to 5.0 log CFU/ml). This qualitative assessment of foodborne pathogens revealed that B. cereus was detected in vegetable and meat product menus. These results suggest time-temperature control is necessary during production and delivery and management guidelines during production of home-delivered meals are provided for safe production.
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가정배달도시락 수혜 아동의 도시락 서비스 이용 실태와 평가
문정아(Jeong-A Moon),유창희(Chang-Hee Yoo),이경은(Kyung-Eun Lee) 한국식품영양과학회 2015 한국식품영양과학회지 Vol.44 No.6
결식아동을 위한 급식은 지역 실정과 아동 여건에 따라 급식소 급식, 일반음식점 급식, 도시락 배달, 부식 지원 등의 방법으로 지원하고 있으나, 그중 도시락 배달은 완전한 식사를 제공할 수 있으며 낙인 현상 없이 아동이 원하는 시간에 편리하게 먹을 수 있다는 면에서 만족도가 높다. 그러나 도시락은 생산하는 장소와 섭취하는 장소가 분리되고, 섭취 전까지 취급 방법에 따라 식중독 발생 위험이 있다. 본 연구에서는 도시락이 가정으로 배달된 후 가정 내 보관과 섭취 실태를 조사하고, 도시락 급식서비스의 품질을 평가하였다. 도시락 서비스를 이용한 기간은 학년이 높아질수록 유의적으로 길어졌고, 절반 정도의 아동들이 일주일에 4~5회 도시락을 받는 것으로 나타났다. 학기 중보다는 방학 중 도시락 서비스 이용 빈도가 증가하였다. 조사대상자의 86.1%는 도시락을 받은 후 4시간 이내에 섭취하는 것으로 나타났으나 13.9%는 4시간이 지나거나 다음 날 아침에 먹는 경우가 있었고, 도시락을 섭취 시까지 싱크대나 식탁 등의 상온보관을 하는 비율이 30.1%였다. 특히 학년이 낮을수록 그 비율이 높게 나타나 도시락을 섭취하기 전 안전한 보관 방법을 알려주는 것이 필요하였다. 남은 음식은 냉장고에 보관 후 섭취전 가스레인지나 전자레인지로 가열하였다. 배달도시락 서비스 품질 점수는 보통 정도였으나 음식의 간과 맛에서 가장 낮은 평가를 받았고, 학년이 높을수록, 이용 기간이 길어질수록 메뉴 요인의 평가점수가 유의적으로 낮아졌다. 본 연구는 조사 대상이 서울 일부 지역에서 도시락 배달을 받는 수혜자로 제한되어 일반화하는 데는 한계가 있다. 그러나 우리나라 결식아동을 대상으로 가정에서 배달된 도시락을 어떻게 보관하고 섭취하는지에 대해 수혜 아동의 입장에서 수행된 연구라는 점에서 의의가 있다. 지역에 따라 급식서비스 운영 방법이 다양하므로 향후 다양한 지역과 급식서비스 업장을 대상으로 한 연구가 요구된다. The purposes of this study were to investigate consumption of home-delivered meals among children from low-income families and to assess their perception of the home-delivered meal service. A survey was conducted on 392 children who had received home-delivered meals, and 208 questionnaires (response rate: 53.1%) were analyzed using SPSS (ver 18.0). The respondents consisted of elementary school students (36.1%), middle school students (33.7%), and high school students (30.2%). Approximately half of children received home-delivered meals during their semester and vacation periods, and 52.2% of respondents shared the delivered meals with their brothers or sisters. Eighty-six point one percent of respondents consumed delivered meals within 4 hours after the meals were received at home, and approximately a fifth of respondents left the delivered meal boxes on a sink counter or table until eating. Leftover foods were kept in the refrigerator (52.2%) or on the sink counter/table (2.5%). The quality of the home-delivered meal service was assessed as 3.3 points based on a 5-point scale. ‘Food safety is good’ received the highest score (3.62) and ‘Food taste is good’ received the lowest score (3.07). The results showed that children receiving the home-delivered meal service should be provided information on proper handling and consumption of the delivered meals at home.
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