Kim, Eun-Mi;Hong, Sang-Pil;Lee, Min-A;Jeong, Mi-Kyoung;Cho, Tae-Oc
Journal of the Korean Society of Food Science and Nutrition
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v.37
no.8
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pp.1058-1068
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2008
This study was conducted to establish size specification of food material for elementary school meals, researched at school meal scene and surveyed with questionnaires about the management of food materials by workers devoted to preparing school meals. Most subjects (80.7%) answered that students were served smaller size than adults, whereas 11.0% answered that they served different sizes according to school age and 8.3%, that they served same size as adult. About the food material size specification for elementary school student, a majority of respondents reported that 3/4 or 2/4 of adult served size was suitable. The serving size was decided and executed to investigate the actual intake and the preference of students for food size by 2 methods, intake ratio and questionnaire in 6 elementary schools. It showed that intake ratio and preference of students may be changed by serving size. According to the result, food serving size was divided in 3 types per menu and food size was measured precisely using the white board inscripted calibration. Actual food serving size for adult and recommended food serving size for elementary school student was compared. The data collected were coded and used to decide food material specifications for 12 cooked vegetable items, 15 raw vegetable items, 9 kimchi items, 2 fermented fish and fish sauce items, 8 deep-fried items, 5 meat and meat product items, 19 fish items and 5 dried food items.
In this study, we investigated antimicrobial and cytotoxicity effects to each· fraction extracted from Hizikiafusifonnis (HF), which were extracted methanol (HFM) and then the extract was fractionated into four different types: hexane (HFMH) , methanol (HFMM) , bulanol (HFMB) and aquous (HFMA) partition layers. We determined the cytotoxic effect of these layers on human cancer cells by MIT assay. Among various partition layers of HF, the HFMB and HFMM were showed the strong cytotoxic effects on cancer cell lines we used. The quinone reductase (QR) induced activity of the HFMB on HcpG2 cells at $150\;{\mu}g/mL$ concentration was 2.63 times more effective compared to the control value of 1.0. Although further studies are needed, the present work suggests that HF maybe a chemopreventive agent for the treatment of human cancer cells.
International Journal of Internet, Broadcasting and Communication
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v.13
no.1
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pp.194-200
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2021
This study proposes a plan to construct an integrated platform that reduces manufacturing costs and efficiently produce by integrating the systems of main producers, production subcontractors, and raw material subcontractors for the production of food packaging containers. The production plan of food packaging containers and raw materials is established in real time between the main producers, production subcontractors, and raw material subcontractors in consideration of the demand characteristics of each product. It establishes basic information that all processes from the production planning stage to the forwarding stage of the product are linked to each other. The progress of each producer of interlinked processes is shared in real-time to improve productivity and quality of food packaging containers and raw materials and reduce manufacturing costs. By monitoring the system of the main producer and the production subcontractor in real time, the production of food packaging containers is performed in a timely manner, thereby improving productivity. The application of the plan-do-check-action (PDCA) process, which includes planning, execution, evaluation and improvement in the production operation processes of the main producer, production subcontractor and raw material subcontractor, enables improved production compliance rate. The contents of the main producers, production subcontractors, and raw material subcontractors are managed in real time, then a converged production management system is established through the platform proposed in this study to ensure timely supply and demand of raw materials without delay in ordering.
The study examined the level of understanding and satisfaction of parents who should receive the food materials and monitor the food service, and would provided the basic data for more desirable school feeding system. The analysis was based on the participation level in materials receiving and food service monitoring, condition of equipment, knowledge about materials and the opinions about monitoring education. 160 monitors out of Daejeon primary schools were used and 60% of them were in the age of thirties and the others were in forties. Equipment condition for material receiving was good and most of the monitors were familiar with the ways of using the machines. Difficulties of material receiving were found in meat(65.6%) and sea food(21.9%), and the ratios of activities and the intention to participate in monitoring education were high with 25.0% and 72.5% respectively. Most of the monitors thought sanitary conditions of food materials(100.0%) and delivery persons(96.9%) were very good or good. And 90% of the respondents changed their perception of school food service positive after monitoring. In conclusion, most of the parents wanted to participate in the monitoring and material receiving actively and showed great willingness to receive monitoring education.
Proceedings of the Korean Society for Food Science of Animal Resources Conference
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2004.05a
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pp.198-201
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2004
To investigate hydrostatic pressure (HP) effect on myofibrillar protein (Mf) extracted from bovine Semitendinosus muscle, Ca- and Mg-ATPase activities to evaluate denaturation of myosin and actin, and soluble protein contents were observed. In Mf treated with 100 MPa for 5 min was not observed denaturation of myosin and actin. In Mf treated with 200 MPa for 5 min, denaturation of myosin and actin were observed but inactivation rate was low (0.0136 $min^{-1}$). Inactivation rate of myosin and actin was dramatically increased above 300 MPa treatment. However denaturation of myosin and actin was not that critical with duration time. By increasing pressure size, the amount of myosin and actin in soluble protein eluted in 20 mM potassium phosphate buffer (pH 7.0) containing 0.6 M NaCl were decreased. SDS-PAGE of soluble protein released from Mf suspension in 0.1 M NaCl buffer (pH 7.0) showed that low molecular weight proteins (15${\sim}$36 KDa) were released by HP treatment above 200 MPa. From the results, denaturation of myosin and actin, and release of light molecule proteins of Mf were observed by HP treatment over 200 MPa.
A novel Cu-Co-O composite nanocatalyst was designed and prepared for the ozonation of phenol. A synergistic effect of copper and cobalt was observed over the Cu-Co-O composite nanocatalyst, which showed higher activity than either copper or cobalt oxide alone. In addition, the Cu-Co-O composite revealed good activity in a wide initial pH range (4.11-8.05) of water. The fine dispersion of cobalt on the surface of copper oxide boosted the interaction between catalyst and ozone, and the surface Lewis acid sites on the Cu-Co-O composite were determined as the active sites. The Raman spectroscopy also proved that the Cu-Co-O composite was quite sensitive to the ozone. The trivalent cobalt in the Cu-Co-O composite was proposed as the valid state.
Proceedings of the Korean Society for Agricultural Machinery Conference
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1996.06c
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pp.334-343
/
1996
Quality evaluation for food and agricultural products have always been one of the most elusive problems associated with the handling , processing and marketing in a food plant production. In order to detect physical foreign materials in food and agricultural products, non-destructive techniques have been developed for many years. Application of X-ray system to detect physical foreign materials in food and agricultural products could be considered to be a high potential method. Especially , it is impossible to detect internal physical foreign materials by visual inspections. In this study, it was tried to be applied for two different X-ray devices. Soft X-ray system with CdTe sensor and X-ray CT scanner were evaluated for advantage of the detection of non-meltallic foreign materials in food and agricultural products . Though the soft X-ray is not a high energy radiation, it is possible to detect small different density in a material. The CdTe sensor has a high resolution for t e soft X-ray energy region. The density characteristics of foods and foreign material were expressed region. The density characteristics of foods and foreign materials were expressed as a soft X-ray energy spectrum. The energy spectrum was analyzed by a personal computer with a multi-channel analyzer. X-ray CT scanner can provide visual image and analyze by three dimensional information inside food and agricultural products. The X-ray CT scanner using as a medical equipment was used to detect a foreign material. The density characteristics of food and foreign materials in food were tried to be detected by the threshold value on the basis of the CT numbers. The soft X-ray absorption characteristics for acrylin plates and distilled water were obtained and could be found the possibility of detecting a small physical foreign materials such as a plastic wrapping film , a stone and grasshopper in food and agricultural products.
We have observed foreign bodies in food and air passage in 270 cases during the period from Sep. 1976 to Aug. 1981 in E.N.T. department of Han Gang Sacred Heart Hospital. The following results were obtained. 1) Distribution of location was 256 cases (94.8%) in food passage and 14 cases(5.2%) in air passage. 2) Age distribution was predominent in under 5 years old showing 198 cases(77.7%) in food passage and 10 cases (71.4%) in air passage. Under 5 years old group in the cases of food passage, coin was the most frequent material : 175 cases(87.9%), and in the cases of air passage, plastic material was the most frequent material : 5 cases(50.0%). Over 40 years old group in the cases of food passage, bony pieces was the most frequent material : 8 cases(47.1%), and meats was second frequent material: 6 cases. 3) Male seems to be more frequently involved than female in cases of food and air passage. Food passage - Male: Female - 151 : 105 (1.4:1) Air passage - Male : Female - 10:4 (2.5:1) 4) Coin was the most frequent foreign body in food Passage (199 cases-77.7%). Others were metals, bony pices, and meats. Plastic material was the most frequent foreign body in air passage (7 cases-50%). 5) In the locality of food passage, the first narrowing of the esophagus was the most frequent site, and air passage, the bronchus-especially right bronchus-was the most frequent site. 6) During of lodgement was 218 cases (85.2%) within 24 hours in food passage and 9 cases (64.3%) within 24 hours in air passage, and in air passage one case visited 5 months later after the accident.
Tis study was an attempt to systematically analyze the characteristics of modern Korean food styling using the menu image photos of the Michelin Guide Seoul 2020 restaurants. The first sampling was conducted on the 27th of March 2020 and the second on the 27th of October 2020. A collection of images on the web and 442 photographic cases obtained by a search through theoretical background literature and research papers were studied by a qualitative analysis method. First, the food styling contents were analyzed and based on that, the food styling characteristics of the menus of 11 restaurants in Korea including the contemporary restaurants were considered. The analysis revealed several aspects of Korean food styling. First, food styling appeared to have three major characteristics: color, shape, and container styling. Color styling was further subdivided into single color/similar color, color contrast, source type, and accent color type. The shape/formative styling was classified into figure type, shape type, accessory type, and garnish type, and container styling was categorized as container color type, container shape type, and container material type. Second, the modern Korean food color styling characteristics of Michelin restaurants were categorized in the order of monochromatic/similar type, sauce type, accent color type, and color contrast. In the formative styling category, it was categorized in the order of shape type, small piece type, garnish/garnish type, and figure type. In container styling, container material type and formative type accounted for the major portion of the category. The food styling characteristics of the modern Korean menu were systematized and image examples were presented visually. Please use it as food styling educational material or personal food styling skill.
In this paper, the expert system to reduce the amount of food waste is proposed. The method of material flow analysis (MFA) is applied. Proper handling of waste beyond the terms of the need for proactive research been mentioned before, but actually cause the waste generator research focuses on consumer behavior and the business community to analyze the flow of materials within the study are insufficient. In this paper, the type of food consumption and food waste, look at the relationship between the occurrence of secondary schools in the diet is provided for students to examine the preferences of the target model diet expert system was reconfigured. Preference for leaving the food in the diet leads to the important information that is Each diet recipes that make up the target material flow analysis (MFA) was constructed to perform all the database. This database is currently being generated from the rain while cooking diet edible plants and materials to reflect the self-esteem following the recommended diet is used to create. Reducing food waste is actually being used currently in research knowledge to the knowledge base was constructed. Future Home Smart System was developed in conjunction with the system to the user, by providing guidelines for the utilization can be expected.
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