• Korean Journal of Fisheries and Aquatic Sciences
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• v.56 no.2
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• pp.188-195
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• 2023

Antimicrobial resistance patterns of Escherichia coli strains isolated from 30 seawater samples and 30 Korean rockfish Sebastes schlegelii collected from fish farms off the South Coast of Korea in 2018-2019, were investigated. The isolated E. coli (154 strains) showed the highest antimicrobial resistance to tetracycline (44.8%) followed by chloramphenicol (38.3%), streptomycin (37.6%), and trimethoprim/sulfamethoxazole (35.7%). The antimicrobial resistance rate was higher in E. coli strains isolated from Korean rockfish than those from seawater. Multiple antibiotic resistance (MAR) against at least three antimicrobials (MAR index: ≥0.2) was observed in 35.6% and 79.2% of the seawater and Korean rockfish isolates, respectively. In conclusion, continuous monitoring is required to identify changes in antimicrobial resistance and their correlations in the aquatic environment and products.

• Food Science and Industry
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• v.55 no.3
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• pp.308-325
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• 2022

The food life of Korean people during the establishment of Republic of Korea and the Korean war was reviewed. After liberation in 1945, the division of South and North Korea, the establishment of the governments, and the ensuing Korean War made Korean society extremely chaotic and transformed. Consequently, data on Korean dietary life during this period (1945-1960) are scarce and unreliable. The author tried to reveal the food situation and health and nutritional status of Koreans during this period by examining the data released by the US National Archives and other review books. Regarding the nascent period of the food industry after the Korean War, data from the recent 50-year history of the Korea Food Industry Association has been compiled.

• Journal of the Korean Society of Food Culture
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• v.35 no.6
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• pp.503-523
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• 2020

The purpose of this study was to select 30 representative Korean dishes by a systematic review of preferences and recognition of Korean foods. The papers for the review were located using the keywords 'hansik', 'hanguk eumsik' from DBpia, KISS, NDSL and RISS, and 18 relevant papers were finally short-listed. To analyze the preferences of Koreans and foreigners for Korean dishes, respondents were chosen from various regions such as Asia, Europe, South Pacific, Africa, and North/South America. A total of 4,053 respondents participated in the selected papers and Korean dishes were classified according to the content analysis based on books published by the Rural Development Administration (RDA). Among the main dishes, two kinds of cooked rice were selected, bibimbap and kimbap. Also, noodles, dumplings, and sliced rice cake soup varieties mul-naengmyeon, guksujangguk, mandu, and tteokguk were selected as main dishes. The side dishes selected included 6 kinds of soup, miyeokguk, yukgaejang, samgyetang, gomtang, seolleongtang, and galbi-tang. Other side dishes selected were six types of stews namely doenjang-jjigae, kimchi-jjigae, sundubu-jjigae, haemultang, maeuntang, and dakbokkeum-tang. Three kinds of grilled side dishes selected were bulgogi, galbi-gui, and samgyeopsal-gui. Galbi-jjim was selected in the category of braised or steamed foods. Tteokbokki and japchae were the stir-fried food selected. Pan-fried foods and fried foods selected included a kind of haemul-pajeon and dak-gangjeong respectively. Seasoned vegetables selected were samsaek-namul including gosari-namul, sigeumchi-namul and doraji-namul. Two kinds of baechukimchi and kkakdugi were selected as kimchies, and sikhye was selected in the category of beverages and teas. These results could be used as selection criteria in developing recipes for representative Korean menus.

• Food Science of Animal Resources
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• v.29 no.6
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• pp.668-672
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• 2009

This paper describes the differentiation between native Korean cattle (Hanwoo) and Holsteins or imported cattle using the real-time polymerase chain reaction (PCR) by targeting the sequence of the melanocortin 1 receptor (MC1R) gene. A rapid and accurate method was developed to identify Hanwoo by genotyping the DNA extracted from 295 commercial beef samples (obtained from 5 provinces in South Korea) labeled as Hanwoo beef. The results of real-time PCR assays for the proportions of Hanwoo were 84, 85.7, 95, 91.4, and 90% in the areas of Seoul, Joongbu, Youngnam, Honam, and Chungcheong, respectively. Thus, the beef samples from 295 butcher shops, which asserted to only sell Hanwoo, showed that 259 of 295 samples were of the Hanwoo beef gene type (T-type) and 36 of 295 samples were Holsteins of imported dairy cattle gene types (C-type or C/T type). In conclusion, the proportion of Hanwoo beef was 87.8% and the proportion of Holstein or imported dairy cattle meat was 12.2% (C-type: 9.8%, C/T-type: 2.4%). Generally, most consumers can not differentiate imported meat from Hanwoo beef. Therefore, Hanwoo beef and imported dairy cattle meat that is sold in butcher shops should have mandatory identification by using MC1R genotyping based on real-time PCR.

• Journal of the Korean Home Economics Association
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• v.37 no.1
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• pp.15-28
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• 1999

Living culture, which is a pattern of peoples' everyday living, is influenced by the socio-economic conditions as well as ideology of the society. South and North Korean societies have been segregated during the past 50 years with different socio-economic conditions and idelolgies, resulting different living cultures, even though those two societies share the same traditional culture. This project was developed to identify the differences in living cultures between South and North Korean concentrated on finding out the current living culture of North Korean families. Based on indepth interview with ten people who escaped from North Korea after 1990, empirical survey with 158 subjects was conducted. The subjects with various demographic backgrounds were asked about lifestyles concerning clothing, food, housing that they experienced when they were in North Korea. This study revealed differences in many aspects of living cultures of South and North Korea, and relationships were suggested in three lifestyles. The study was intended to provide ground for more information to the following study that will explore the cue of integration between South and North Korean societies in living culture.

• Preventive Nutrition and Food Science
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• v.18 no.4
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• pp.249-255
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• 2013

Yam (Dioscorea) has long been used as foods and folk medicine with the approved positive effects for health promotion. Although consumption of yam products is increasing for health promotion, reports for the metal contamination in commercial yam powder products to protect the consumers are lacking. In this study, we aimed to assess whether the commercial yam powder products were heavy metal contaminated or not using the yam products from six commercial products from various places in South Korea. The contents of heavy metals (Cd, Cr, As, Pb, Ni, and Sn) in yam powder products were measured and compared to national and international food standard levels. Also, the metal contamination was monitored during the food manufacturing steps. The study results showed that the contents of heavy metals (Cd, Cr, As, and Pb) in yam powder products are similar to those in national 'roots and tubers' as well as in various crops. In comparison to three international standard levels (EU, Codex and Korea), Cd content in yam powder products was lower but Pb content was 5 times higher. Also, Pb, Ni, and Sn may have the potential to be contaminated during food manufacturing steps. In conclusion, the level of heavy metals (Cd, Cr, As, Ni, and Sn) except Pb is considered relatively safe on comparison to national and international food standard levels.

• Journal of Applied Tourism Food and Beverage Management and Research
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• v.16 no.2
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• pp.97-119
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• 2005

Recently, the internal hotels try to strategic diversification of hotel administration in the eating and drinking area, that is do reasonable by long-term recession. Wished to consider effect entertainment's application possibility and alternative presentation that food court and eatertainment introduction in hotel restaurant which improve administration and sales extension. This research is questioned between 30 from September 1, 2004 by population total 426 collected, man and woman who more than 18 years olds takes in Seoul expert restaurant(south and north of river).

• Analytical Science and Technology
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• v.33 no.5
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• pp.215-223
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• 2020

The objectives of the present study were to assess the oxidative stability of South Korean n-3 (omega-3 fatty acid) supplements carried out from 2018 to 2019 and evaluate the influence of product characteristics on oxidative safety. A total of 76 n-3 supplements were analysed for oxidation safety by four markers, including acid value (AV), primary oxidation (peroxide value, PV), secondary oxidation (p-anisidine value, pAV) and total oxidation value (TOTOX). Among the supplements tested, 5.3 %, 55.3 %, 28.9 % and 46.1 % exceeded the international voluntary recommended levels for AV, PV, pAV and TOTOX, respectively. Purity (%) of products, remainder of expiration date (suggested shelf life), package in press through package (PTP) and products with additives had statistically significant differences oxidation assessment levels (p < 0.05). In addition, n-3 group found in Algae oil had significantly lower AV levels than the group that did not, and product with Alaska pollack oil, had significantly higher pAV levels than without group (p < 0.05). The high oxidation status of South Korean n-3 products in the present study could not be considered a public health problem right now. However, the levels of oxidation may affect a lot the efficacy and safety of using n-3 supplements. Thus, current oxidation safety limits should be reestablished by regulatory bodies to ensure the safety and efficacy of n-3 supplements, so that the standards could be applied to the products available to consumers.

• Journal of Microbiology and Biotechnology
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• v.23 no.2
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• pp.246-250
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• 2013

In this study, a loop-mediated isothermal amplification (LAMP) method to rapidly detect Staphylococcus aureus strains was developed and evaluated by extensively applying a large number of S. aureus isolates from clinical and food samples. Six primers were specially designed for recognizing eight distinct sequences on the species-specific femA gene of S. aureus. The detection limits were 100 fg DNA/tube and $10^4$ CFU/ml. The LAMP assay was applied to 432 S. aureus strains isolated from 118 clinical and 314 food samples. Total detection rates for the LAMP and polymerase chain reaction assays were 98.4% (306/311) and 89.4% (278/311), respectively.

• Journal of Korea Trade
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• v.26 no.1
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• pp.20-32
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• 2022

Purpose - This paper intends to make theoretical analysis and empirical test on the factors influencing China's export to South Korea, and draw conclusions about China's export efficiency and trade potential. Based on the conclusions, the reasons for China's trade deficit with South Korea are found, and a solution is put forward for solving the problem of China's trade deficit with South Korea. Design/methodology - Based on the data of 2004-2017 years in China, this paper uses the stochastic frontier gravity model to analyze the influencing factors of China's export to South Korea, as well as the export efficiency of each province and the export potential that can be explored. Findings - First, in terms of the factors affecting China's export trade to South Korea, the GDP of the provinces and cities in China, the FDI of South Korea to the provinces and cities in China, the GDP of South Korea, the population and education level of provinces and cities in China can significantly promote the export scale of Chinese provinces and cities to South Korea. The distance between Chinese provincial capitals and the South Korean capital significantly hinders Chinese exports to South Korea; Second, in terms of export trade efficiency, the trade exchange rate of the economically developed cities along the eastern coast of China and several provinces that are close to South Korea is higher than that of the cities in the central and western regions; Third, economic globalization makes trade more convenient, the average export trade efficiency of China's exports to South Korea showed an upward trend. However, under the influence of the 2008 global financial crisis, the export trade efficiency declined from 2008 to 2009, indicating that the impact of the financial crisis on the trade efficiency cannot be ignored. Originality/value - This paper finds out the influencing factors of China's export to South Korea, analyzes the export efficiency of different provinces and cities, excavates the export potential, and puts forward some suggestions for the balanced development of China and South Korea trade in the next step.