• Journal of the Korean Society of Fisheries and Ocean Technology
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• v.31 no.3
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• pp.228-239
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• 1995

A model experiment on the pair midwater trawl net which is prevailing in Denmark is carried out to get the basic data available for Korean pair bottom trawlers. The model net was made in 1/30 scale considering the Tauti's Similarity law of fishing gear and the dimension of experimental tank. The vertical opening, horizontal opening, towing tension and net working depth of the model net were determined in the tank within the towing velocity 0.46~1.15m/sec, front weight 15.5~62.0g and distance between paired boats 5~8m(which correpond to 2~5k't in towing velocity, 70~280kg in weight and 150~240m in distance respectively in the prototype net). The results got from the model experiment can be converted into the full scale net as follows; 1. Vertical opening showed the largest value of 32m at the condition of 2k't in towing velocity, 280kg in front weight and 150m in the distance between paired boats, and the smallest value of 6m at the condition of 5k't in towing velocity, 70kg in front weight and 240m in the distance between paired boats. 2. Horizontal opening showed the largest value of 45m at the condition of 5k't in towing velocity, 70kg in front weight and 240m in the distance between paired boats, and the smallest value of 33m at the condition of 2k't in towing velocity, 280kg in front weight and 150m in the distance between paired boats. 3. Towing tension showed the largest value of 10, 000kg at the condition of 5k't in towing velocity, 280kg in front weight and 240m in the distance between paired boats, and the smallest value of 1, 600kg at the condition of 2k't in towing velocity, 70kg in front weight and 150m in the distance between paired boats. 4. Net working depth showed the largest value of 38m at the condition of 2k't in towing velocity, 280kg in front weight and 150m in the distance between paired boats, and the smallest value of 6m at the condition of 5k't in towing velocity, 70kg in front weight and 240m in the distance between paired boats. 5. Net opening area showed the largest value of 1, 100m super(2) at the condition of 2k't in towing velocity, 280kg in front weight and 180m in the distance between paired boats, and the smallest value of 250m super(2) at the condition of 5k't in towing velocity, 70kg in front weight and 240m in the distance between paired boats.

• The Korean Journal of Food And Nutrition
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• v.16 no.1
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• pp.22-28
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• 2003

Kimchi made with the addition of 2 percent of boiled young antler, raw young antler, young antler treated with lactic acid(acid treated young antler) has been fermented for 15 days at 11$^{\circ}C$. After 15 days of fermentation, the results show that pH of boiled young antler Kimchi was 3.87, that of raw young antler Kimchi was 4.04, acid treated young antler Kimchi was 3.97, control Kimchi was 3.86, and acidity of boiled young antler Kimchi was 7.4, that of raw young antler Kimchi was 10.5, that of acid treated young antler Kimchi was 10.7, control Kimchi was 6.9, respectively. After 15 days, total sugar content was 1.46% in boiled young antler Kimchi, 0.53% in raw young antler Kimchi, 0.92% in acid treated young antler Kimchi, 1.46% in control Kimchi, and reducing sugar was 0.50% in boiled young antler Kimchi, 0.14% in raw young antler Kimchi, 0.39% in acid treated young antler Kimchi and control Kimchi, respectively. Amino acid content was 13.42${\mu}$㏖/$m\ell$ in boiled young antler Kimchi, 17.83${\mu}$㏖/$m\ell$ in raw young antler Kimchi, 14.48${\mu}$㏖/$m\ell$ in acid treated young antler Kimchi, 17.60${\mu}$㏖/$m\ell$ in control Kimchi, and protein was 2.101% in boiled young antler Kimchi, 1.945% in raw young antler Kimchi, 1.722% in acid treated young antler Kimchi and 2.011% in control Kimchi, respectively. Lactic acid content was 2.021% in raw young antler Kimchi, 2.004% in acid treated young antler Kimchi, 1.950% in boiled young antler Kimchi, 1.200% in control Kimchi, and succinic acid was 0.081% in boiled young antler Kimchi, 0.086% in raw young antler Kimchi, 0.078% in acid treated young antler Kimchi and 0.111% in control Kimchi, respectively. Acetic acid was 0.080% in boiled young antler Kimchi, 0.092% in raw young antler Kimchi, 0.114% in acid treated young antler Kimchi, 0.086% in control Kimchi, respectively. The number of microorganism was 1.09${\times}$ 10$\^$8//g in boiled young antler Kimchi, 1.08${\times}$10$\^$8//g in control Kimchi, 9.88${\times}$10$\^$8//g in acid treated young antler Kimchi and 6.6${\times}$ 10$\^$8//g in raw young antler Kimchi. The number of microorganism was highest in acid treated young antler Kimchi, and followed by raw young antler Kimchi, and boiled young antler Kimchi, control Kimchi, respectively. The results of test of the saltness, sour, aroma, color, texture through sensory evaluation reveal that boiled young antler Kimchi has the excellent taste, and followed by raw young antler Kimchi and control Kimchi, acid treated young antler Kimchi, respectively.

• Korean journal of food and cookery science
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• v.22 no.5 s.95
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• pp.617-625
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• 2006

This study was done to provide basic data for the operation of a safer cook-chill system by comparing and evaluating the quality of foods which were prepared using the sous vide cook-chill system and the conventional cook-chill system, according to the preparation methods and storage temperature. Simmered chickens in soy sauce were prepared using the sous vide cook-chill system and the conventional cook-chill system and their quality was evaluated at the time of preparation and storage. Firstly, foods were prepared using the sous vide cook-chill (SVCC) system and the conventional cook-chill (CC) system and the redquired time and temperature during each preparation stage were measured and physicochemical (pH, Aw, and moisture content) and microbial qualities were evaluated. Secondly, in order to evaluate the quality and safety, the moisture content and microbial (standard plate count, coliform count, psychrotrophic bacteria count, and anaerobic bacteria count) qualities were evaluated according to the preparation methods and temperatures after the foods were stored at 3$^{\circ}C$ and 10$^{\circ}C$ for 10 days and reheated.

• Korean journal of food and cookery science
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• v.19 no.5
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• pp.603-608
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• 2003

In approximate composition, crude protein, lipid, ash, crude fiber, and N-free extract constituted 14.70%, 3.10%, 6.90%, 18.20%, and 57.10%, respectively, in Korean safflower flowers, compared to 12.60%, 2.70%, 5.80%, 16.40% and 62.50%, respectively, in Chinese safflower flowers. This indicated that Korean safflower flowers surpassed their Chinese counterparts except in terms of N-free extract. Free sugars such as fructose, glucose, and sucrose were proven to be dominant in both domestic and Chinese safflower flowers, while little xylose was contained. For content of polyphenolic compound, Korean safflower flowers contained 13.85% water soluble extract and 9.70% MeOH extract, compared to 9.39% and 7.04%, respectively, for the Chinese variety, confirming the higher levels in the Korean variety. For fatty acids, (Ed- the following results are not presented in ratio form) saturated fatty acids and unsaturated fatty acids comprised 6.80% and 93.20% in Korean safflower flowers and 16.0% and 84.0% in Chinese safflower flowers, respectively. Linoleic, oleic, and palmitoleic acids comprised 75.30%, 11.60%, and 3.40% in Korean safflower flowers, and 66.70%, 11.20%, and 6.10% in the Chinese variety, respectively. Of amino acids, essential amino acids comprised 46.67% in Korean safflower flowers and 36.79% in the Chinese variety. Moreover, total essential amino acids in Korean safflower flowers were higher than those of their counterparts. Non-essential amino acid comprised 65.17% in the Korean variety and 54.49% in the Chinese. In terms of mineral content, Korean safflower flowers contained more Ca, Cu, Fe and Mn than those of China, while Chinese safflower flowers contained more A1, Ba, Mg, K, Na, Zn, Sr and P.

• Food Science of Animal Resources
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• v.30 no.3
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• pp.504-511
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• 2010

This study was undertaken to investigate the effects of feeding complex probiotics (Lactobacillus casei, Bacillus subtilis, Saccharomyces cerevisiae, Aspergillus oryzae, Streptomyces griseus, $1.5{\times}10^{10}$ CFU/kg) and antibiotics (oxytetracycline (OTC), 110 ppm) on growth performance and meat quality characteristics of broiler chicks. In the experiment 1, 0.3% complex probiotics feeding level was chosen to be proper addition level due to better average daily gain (ADG), feed conversion (FC) and dressing percent (DP) results among 3 levels (0.1, 0.3 or 0.5%). In the experiment 2, 5 treatments (T1, no probiotics + no antibiotics; T2, probiotics 0.3% + no antibiotics; T3, probiotics 0.3% + antibiotics 50%; T4, probiotics 0.3% + antibiotics 100%; T5, no probiotics + antibiotics 100%) were investigated. In the growth performance of broilers, T5 (antibiotics 100% only) showed the highest (p<0.05) ADG and FC values while T1 (control) showed the worst growth performance. However, T3 (probiotics 0.3% + antibiotics 50%) showed higher ADG (p<0.05), FC (p<0.05) and DP (p>0.05) values compared to control. In the breast and leg meat quality, T3 showed similar pH, proximate composition, cooking loss and meat color values except shear force value compared to T5. Addition of 0.3% probiotics with 50% antibiotics (T3) tended to lower the blood cholesterol levels of broiler chicks and Escherichia coli or Salmonella counts in cecum microflora of broiler chicks compared to T5. In the residual antibiotics analysis, T3 contained 0.04 ppm of residual antibiotics in the breast meat while T4 or T5 contained 0.1 ppm of residual antibiotics and addition of 0.3% probiotics with 50% antibiotics in broiler diets could lower the residual antibiotics level to 40% in the meat. As a result, 0.3% probiotics addition with 50% antibiotics in the broiler diets could be recommended for the production of high quality broiler meat.

• Food Science of Animal Resources
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• v.30 no.2
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• pp.336-344
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• 2010

Considering the increasing trends of the consumption of livestock products in Korea, proper hygienic management and policies for ensuring their safety to protect public health and strengthen consumer confidence are demanded. It is particularly important to manage the livestock distribution processes to provide safe meat and meat products. This study was conducted to examine factors related to the hygiene management of livestock products and to check out the condition of hygienic management in meat markets. To accomplish this, 156 meat markets divided into HACCP-certified and non certified and evaluated for five factors, which received the following scores: facility and equipment management (1.00/2.0 points, 50.0%), storage and transport management (1.93/2.0 points, 96.5%), work place management (0.76/2.0 points, 38.0%), personal hygiene management (0.75/2.0 points, 37.5%), and inspection management (0.22/2.0 points, 11.0%). The results revealed that the scores of HACCP-certified meat markets were significantly higher than those of the non certified markets (p<0.05, p<0.01, p<0.001). These findings suggest that meat markets that are not HACCP-certified must improve hygienic management conditions and educate their employees to improve the safety of livestock products during distribution.

• Korean Journal of Food Science and Technology
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• v.34 no.6
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• pp.1140-1144
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• 2002

Molecular relaxation behaviors of crystalline glucose anhydrous, crystalline glucose monohydrate, and amorphous glucose with different particle sizes were observed by measuring spin-spin relaxation time constant $(T_2)$ at the temperature range of $-20\;to\;110^{\circ}C$ using temperature-controlled low field nuclear magnetic resonance spectroscopy. No change in $T_2$ values of crystalline glucose anhydrous was observed throughout the temperature range, whereas $T_2$ values of crystalline glucose monohydrate and amorphous glucose increased from around $45\;and\;65^{\circ}C$, respectively. These results indicate that molecular mobility of crystalline glucose anhydrous does not change even at temperature higher than $100^{\circ}C$ and that the stability of powdered glucose could be improved by increasing the particle size of materials.

• Proceedings of the KSCN Conference
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• 2003.11a
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• pp.1053-1054
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• 2003

유아기는 식품 기호도, 식사예절, 식습관 등 식행동의 기초가 형성되는 시기로서 특히 편식이 생기기 쉽고, 식욕부진과 영양과잉 등 불균형한 식품 섭취로 인한 영양문제를 초래할 수 있다. 본 연구에서는 2003년 7월 구미지역 2개 보육시설의 92명 유아들의 부모들을 대상으로 설문조사를 실시하여 유아들의 식습관과 식품 기호도를 조사하고 이를 고려하여 유아를 위한 메뉴를 개발하고 평가하였다. 개발한 메뉴는 일반식 (삼각김밥, 오징어전), 편식 (도라지강정, 브로콜리스프), 빈혈식(쇠간함박스테이크, 참치깻잎쌈밥), 비만식(참치샐러드, 닭안심깻잎조림), 전통식(떡찜, 두부선) 등 각 2가지씩 총 10가지이며, 2003년 10월 시식회를 거쳐 656명의 유아들에게 맛, 냄새, 모양, 조직감, 전반적인 기호도 등에 대해 5점 척도법으로 메뉴평가를 실시하였다. 식습관 조사결과 편식습관이 있는 경우가 70.7%였으며, 평소 싫어하는 음식에 대해서는 권유로 마지못해 먹는다가 67.4%로 가장 많았다. 성별에 따른 유아의 식습관을 분석해 본 결과 전반적으로 남녀간 유의한 차이는 없었으나 남아가 여아보다 탄산음료를 즐겨 마시는 것으로 나타났다(p<0.05). 기호도 조사결과 10가지 식품군 중 과일류에 대한 기호도(3.97$\pm$0.65점)가 가장 높았고, 채소류에 대한 기호도(2.46$\pm$0.68점)가 가장 낮았으며, 기호도가 특히 낮았던 식품으로는 곡류 및 감자류 중에는 보리밥과 콩밥, 육류 및 가공품 중에는 간과 내장, 두류 및 가공품 중에는 팥, 어패류 중에는 굴, 해조류 중에는 파래, 채소류 중에는 토란, 브로콜리, 도라지 등이었다. 조리법별로는 튀김류(3.80$\pm$0.68)가 가장 높았고 그 다음이 볶음ㆍ구이류(3.77$\pm$0.56)였으며 기호도가 가장 낮은 음식은 생채류(2.61$\pm$1.27)와 숙채류(2.85$\pm$1.13)인 것으로 나타났다. 개발한 메뉴의 선호도는 전반적으로 높았으며 맛에 대한 선호도(4.30$\pm$0.91)가 가장 높았고, 모양에 대한 선호도(3.95$\pm$0.89)가 가장 낮았다. 메뉴별 맛에 대한 선호도는 닭안심깻잎조림 (4.85$\pm$0.36)과 두부선(4.85$\pm$0.52)이 가장 높았고, 참치깻잎쌈밥(3.43$\pm$1.61)이 가장 낮았으며 냄새에 대한 선호도는 두부선(4.76$\pm$0.69), 닭안심깻잎조림 (4.64$\pm$0.53), 브로콜리스프(4.59$\pm$0.88)가 유의하게 높았고 참치깻잎쌈밥(2.95$\pm$1.24)은 유의하게 낮았다. 모양에 대한 선호도는 두부선이 4.85$\pm$0.52점으로 유의하게 높은 점수를 보였으며 쇠간함박스테이크(3.03$\pm$0.17)와 참치깻잎쌈밥(3.11$\pm$1.33)이 유의하게 낮은 점수를 보였다. 조직감에 대한 선호도는 두부선(4.80$\pm$0.56)과 브로콜리스프(4.63$\pm$0.60)가 유의하게 높게 나타났고, 참치깻잎쌈밥(3.20$\pm$1.29)이 유의하게 낮았다. 전반적인 선호도는 맛, 냄새, 모양, 조직감에서 모두 선호도가 높았던 두부선이 4.82$\pm$0.49점으로 가장 유의하게 높았으며 참치깻잎쌈밥이 3.17$\pm$1.30점으로 가장 낮게 나타났다. 음식의 맛, 냄새, 모양, 조직감 및 전반적인 기호도간에는 모두 유의한 상관관계가 있는 것으로 나타났다(p<0.01). 따라서 음식의 맛에 영향을 주는 요인은 맛 자체뿐만 아니라 냄새, 모양, 조직감 등 다양하므로 어릴 때부터 가정과 보육시설에서 다양한 식품과 조리법을 이용하여 맛있고, 먹고싶은 냄새가 나고, 부드러우며, 모양도 먹음직스럽게 조리하여 유아들의 올바른 식습관 형성에 도움이 되도록 하는 것이 필요할 것으로 사료된다.

• Korean journal of food and cookery science
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• v.13 no.1
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• pp.30-39
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• 1997

The purpose of this study was to investigate food services and plate waste of the elementary school children in the urban, rural and suburban areas of Taegu and Kyoungpook province. Statistical data analysis was performed using the SPSS programs for Crosstabs analysis T-test, One-way Anova and Pearson's correlation. The results were as follows: The serving size of rice was greater in suburban area than in rural and urban area by the physical estimation. The amount of soup given was the greatest in rural area. The rate of waste in soup was higher than that of rice. Among side dishes, plate waste rate of braised potato was the highest in rural, then suburban and urban area. There were significant differences (p < .001) among the schools in the three areas. Especially, plate waste rate of cucumber and cabbage salad was the highest in all three areas. Then finally the serving size and plate waste rate of Kimchies were the greatest in rural, then suburban and urban schools. There were significant differences in 'spice pickled cabbage'(p < .001) and 'spice pickled radish'(p < .01) among the three areas. Plate waste amounts of egg soup and pine mushroom soup in urban area were greatest. In rural area, side dishes except egg soup, cabbage salad and Kimchies had a greater amount of plate waste. In suburban areas, there were smaller plate waste amount in rice, but plate waste amounts of pine mushroom soup and beef soup were great. Plate waste rate of rice and 'Kimchies' by children's rating estimation were significantly higher in rural than suburban and urban areas. There were no significant differences in plate waste rate of the given food except braised chicken (p < .001), soup (p < .001) and 'Kimchies' (p < .05) between the physical estimation and the children's rating estimation. Increased satisfaction on food service in most menus resulted decreased plate waste rate. There was a significant degree of satisfaction on the amounts of food served.

• Korean journal of food and cookery science
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• v.19 no.3
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• pp.396-402
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• 2003

The aim of this study was to investigate the quality changes of retort pouched seasoned-conger eel products during a 60 day of storage at 4, 15 and -20$^{\circ}C$. The seasoned-conger eel products was sterilized at either 100 or 121$^{\circ}C$ for 90min., and then vacuum packed in plastic film bags. When comparing their duality before and after sterilization, the pH and VBN of all the products slightly decreased, while the TBA values slightly increased after sterilization. The color value, b, of the product decreased after sterilization, while the L value rarely changed. During storage the pH and VBN of all the products were little changed at the storage temperatures of 15 and -20$^{\circ}C$. The TBA values increased after 30 and 60 days at 15$^{\circ}C$, and at 4 and -20$^{\circ}C$, respectively. As for color difference during storage, the L and a values were little changed during storage, while the b value increased. In conclusion, the quality of the retort pouched seasoned-conger eel products remained good during the 60 day storage period when chilled and frozen after sterilization, and could be consumed as an instant food, keeping an appropriate content and soft texture.