• Journal of Food Hygiene and Safety
• /
• v.33 no.4
• /
• pp.280-288
• /
• 2018

In this study, an approach for the analysis of the five cephalopod species (octopus, long-arm octopus, squid, wet-foot octopus, beka squid) consumed in the Republic of Korea is developed. The samples were collected from the Southeast Asian countries Thailand, Indonesia, Vietnam, and China. The SYBR-green-based real-time qPCR method, based on the mitochondrial DNA genome of the five cephalopods was developed and validated. The intergroup variations in the mitochondrial DNA are evident in the bioinformatic analysis of the mitochondrial genomic DNA sequences of the five groups. Some of the highly-conserved and slightly-variated regions are identified in the mitochondrial cytochrome-c-oxidase subunit I (COI) gene, 16s ribosomal RNA (16s rRNA) gene, and 12s ribosomal RNA (12s rRNA) gene of these groups. To specify each five cephalopod groups, specific primer sets were designed from the COI, 16s rRNA and 12s rRNA regions. The specific primer sets amplified the DNA using the SYBR-green-based real-time PCR system and 11 commercially secured animal tissues: Octopus vulgaris, Octopus minor, Todarodes pacificus, Dosidicus gigas, Sepia esculenta, Amphioctopus fangsiao, Amphioctopus aegina, Amphioctopus marginatus, Loliolus beka, Loligo edulis, and Loligo chinensis. The results confirmed by a conveient way to calculate relative amplification levels between different samples in that it directly uses the threshold cycles (Ct)-value range generated by the qPCR system from these samples. This genomic DNA-based molecular technique provides a quick, accurate, and reliable method for the taxonomic classification of the animal tissues using the real-time qPCR.

• Journal of Korea Port Economic Association
• /
• v.34 no.2
• /
• pp.1-16
• /
• 2018

Maritime industry is recognized as a new value-adding and growth engine industry. It provides high value by creating clusters centering on ports. Advanced international ports are also clashing ahead to create clusters, boost profits, and strengthen competitiveness. The Korean government enacted policies for the establishment and upbringing of maritime industrial clusters in 2015. It is very important to understand which maritime industry has a comparative advantage in each region and to establish an integration strategy through maritime industrial clusters. This study analyzes the structure of the maritime industry in the Chungnam province, which is expected to deal with raw materials(mainly oil products), container throughput, and opening of ferry route with China's port. The study analyzed the existing literature on the maritime industry and classified the industry into 5 major categories, 21 sub-categories, and 84 sub-categories in shipping and logistics, shipbuilding, fishery, marine tourism industry, and other industries. Based on the reclassified maritime industry, the structure of the maritime industry in the Chungnam province was analyzed by using location quotient(LQ) and Shift-Share analysis. The study found that the fisheries industry showed the highest value(1.718) in the analysis of LQ, followed by the marine tourism industry(1.092), shipbuilding industry(0.823) and shipping and logistics industry(0.789). The total effect of the maritime industry in Chungnam province was 36,315 and the net growth effect, excluding the national growth effect, was estimated to be 21,321. Based on these results, we classify the maritime industry in the Chungnam province as comparative advantage and comparative disadvantage. The results of this study can be used as basic data for formulating strategies for the construction of the maritime industry cluster in the Chungnam province in the future.

• Journal of the Korean Recycled Construction Resources Institute
• /
• v.8 no.2
• /
• pp.219-226
• /
• 2020

Over the last decades, great efforts have been devoted to reuse industrial wastes and by-products from various industries as supplementary cementitious materials in order to reduce carbon dioxide(CO₂) emission by reducing the use of Portland cement in construction. Oyster shell waste, originating from the fishery industry, is available in huge quantities in certain areas, and is generally discarded or landfilled. In this study, we aimed to reuse oyster shell as an alternative to limestone in limestone calcined clay cement(LC³). The oyster shell calcined clay cement(OC³) paste were produced and were characterized via X-ray diffraction, isothermal calorimetry, compressive strength tests, and thermogravimetry. The results revealed that OC³ pastes exhibited similar strength development and reactivities by pozzolanic reaction with LC³, which implies that oyster shell could be used as a substitute for limestone in LC³.

• Journal of Food Hygiene and Safety
• /
• v.21 no.3
• /
• pp.129-135
• /
• 2006

In order to provide fundamental data of food circulation policy, we performed monitoring the safety of the imported food which was circulating through Gwangju from March to October, 2005. Acid and peroxide value which are barometers for evaluation of the quality of lipid were investigated in 130 samples of imported oil treatment food. Not-permitted tar pigment and artificial sweetner were investigated in 139 candies by TLC and HPLC. The content of sulfur dioxide in 129 samples of dried fishery products and dried fruits was investigated by Monier-Williams method. In 130 samples of imported oil treatment food, 9 samples (6.9%) were incongruent with acid value, 6 samples (4.6%) with peroxide value and 4 samples (3.1%) with acid value simultaneously with peroxide value. In 139 imported candies, not-permitted artificial sweetner were found in 2 samples (1.4%). In 129 samples in which sulfur oxide was analyzed,4 samples (3.1%) were incongruent. Finally, in total 398 samples in which this study was analyzed, 25 samples (6.3%) were incongruent.

• Journal of Food Hygiene and Safety
• /
• v.35 no.3
• /
• pp.261-270
• /
• 2020

The application of color retention agents (3 items), preservatives (17 items), and bleaching agents (6 items) as food additives in processed foods were investigated by food type. Among color retention agents, sodium nitrite was used the most with 257 cases, mainly in seasoned jeoktal (71.21%), ready-to-eat foods (7.78%), and breads (4.87%). Of the benzoates (1,236 cases) used as a preservative, sodium benzoate showed up most, in 1,215 cases, while 81.16% of these were in beverages such as beverage base (39.51%), mixed beverages (22.47%), and ginseng/red ginseng beverages (8.89%). Grapefruit seed extracts (3,291 cases) were applied to 44 types of processed foods such as sauces (54.65%), liquid tea (10.46%), and other products (5.15%). Ethyl p-hydroxybenzoate (2,957 cases) was applied to products (total 96.44%) such as sauces (92.15%), blended soy sauce (2.77%), and pickled foods (1.52%). Potassium sorbate was applied to a total of 789 cases, mainly pickled foods (40.43%) and processed fishery products (47.15%). All 27 cases of sorbic acid were applied to fish paste (100%). Of the bleaching agents, sodium bisulfite and sodium hydrosulfite were mainly used in confectioneries, breads or rice cakes, and potassium metabisulfite, sodium metabisulfite, and sulfur dioxide were mainly found in alcoholic beverages including fruit wine, while sodium sulfite was mostly used in pickled foods. These results are deemed useful in applying food additives to processed foods.

• Culinary science and hospitality research
• /
• v.20 no.2
• /
• pp.183-198
• /
• 2014

This study aims to suggest useful information for tteokbokki franchise businesses to enter foreign markets by market testing and surveying preferences of foreign consumers with various kinds of tteokbokki. For this research, a survey was conducted from July 16 to August 20, 2012, targeting the people who live in Beijing, Tokyo, Singapore. The data was collected and analyzed using SPSS for Windows Version 18.0. The relationship between the general details of consumers and the results of the market test were analyzed using canonical correlation analysis. Research results and utilization plans are expected to use for improving the image of the country and ripple effects on exporting agricultural and fishery products, along with the effect of increasing spread of overseas personnel export and domestic Korean overseas supply of cultural content. Nurturing restaurant franchise business, creating jobs, and contributing to the increase in the income of the rural economy are also expected. Fermented tteokbokki franchise business should create new added value. The development of fermented tteokbokki will build a new culture of consumption, expand consumption, academic cooperation and joint technology development, and activate employment linked. Consequently, it is necessary to understand eating habits of local consumers from a variety of perspectives such as texture, taste, and colors of sauce when globalizing Korean food.

• Journal of Food Hygiene and Safety
• /
• v.16 no.4
• /
• pp.315-323
• /
• 2001

This study was concentrated that the contents of heavy metals were estimated from 782 samples of sold fisheries in Seoul(33 species in fishes, 15 in bivalves, 12 in crustaceans and 10 in others) by Atomic Absorption Spectrometer. The contents of As, Cd and Pb [minimum~maximum (mean)] were N.D.~0.162 mg/kg(0.021),0.001~0.120 mg/kg(0.014) and 0.015~0.499 mg/kg(0.111) in fishes, 0.003~0.311 mg/kg(0.052), N.D.~1.905 mg/kg(0.182) and 0.013~0.462 mg/kg(0.138) in bivalves, N.D.~0.328 mg/kg(0.042), 0.002~1.113mg/kg(0.079) and 0.006~-.510 mg/kg(0.109) in crustaceans, N.D. ~0.181 mg/kg(0.024), 0.001~0.214 mg/kg(0.033) and 0.010~0.877 mg/kg(0.118) in others respectively, bivalves were the highest than others. The average weekly intakes of three metals from sold fisheries took about 1.4~26.4% of PTWI (provisional tolerable weekly intakes) that FAO/WHO Joint Food Additive and Contaminants Committee had set to evaluate their safety.

• Journal of Satellite, Information and Communications
• /
• v.2 no.2
• /
• pp.29-35
• /
• 2007

COMS satellite is a multipurpose satellite in the geostationary orbit, which accommodates multiple payloads of the Ka band Satellite Communication Payload, Meteorological Imager, and Geostationary Ocean Color Imager into a single spacecraft platform. In this paper, Korea's first innovative geostationary Communication, Ocean and Meteorological Satellite (COMS) program is introduced which is fully funded by Korean Government. The satellite platform is based on the Astrium EUROSTAR 3000 communication satellite, but creatively combined with MARS Express satellite platform to accommodate three different payloads efficiently for COMS. The goals of the Ka band satellite communication mission are to in-orbit verify the performances of advanced communication technologies and to experiment wide-band multi-media communication service. The Meteorological Imager mission is to continuously extract meteorological products with high resolution and multi-spectral imager, to detect special weather such as storm, flood, yellow sand, and to extract data on long-term change of sea surface temperature and cloud. The Geostationary Ocean Color Imager mission aims at monitoring of marine environments around Korean peninsula, production of fishery information (Chlorophyll, etc.), and monitoring of long-term/short-term change of marine ecosystem. The system design difficulties are in the different kinds of payload mission requirements of communication and remote sensing purposes and how to combine them into one to meet the overall satellite requirements. In this paper, Ka band communication payload system is more highlighted.

• Korean Journal of Environmental Agriculture
• /
• v.28 no.3
• /
• pp.310-325
• /
• 2009

Veterinary drugs have been used to prevent livestock diseases for many years. In spite of having advantages, sometimes indiscriminate application, overdose and abuse may cause risk for human. Therefore, management and risk assessment of veterinary drugs become essential to ensure food safety. So the National Veterinary Research & Quarantine Service (NVRQS) impose on registration for use of veterinary drugs also Korea Food and Drug Administration (KFDA) fixed the maximum residue limits (MRLs) for veterinary drugs in food. Basically, KFDA set MRLs based on the veterinary drugs residual data. Moreover, KFDA estimates the theoretical maximum daily intake (TMDI) with food consumption data and population mean body weight. Recently, 116 veterinary drug MRLs including banned veterinary drugs have been established and other 32 veterinary drugs MRLs will be established within 2009. In 2010, MRLs among antibiotics and synthetic antibacterial agents in livestock fishery products (including milk and eggs) and honey (including royal jelly and propolis) which have not been set in Korea Food Code and Codex Alimentarius Commission (CAC) will be regulated as uniform limit (0.03 mg/kg). In future, veterinary drugs will be controlled strictly to strengthen public health by improving analytical method.

• Journal of the Korean Society of Food Science and Nutrition
• /
• v.37 no.1
• /
• pp.97-102
• /
• 2008

For the use of salmon frame in zero emission, the snack using residues of salmon Gomtang was prepared and investigated on the food component characterization. According to the results of volatile basic nitrogen, water activity and sensory evaluation, the optimal substitution ratio of residues was 15% based on the mix. Total amino acid content was higher in the snack (14.8 g/100 g) with 15% residues than in snack (9.8 g/100 g) without residues. The major amino acids of the residues-added snack were aspartic acid (9.9%), glutamic acid (14.7%) and proline (9.5%). The snack with 15% residues were enriched in the mineral (calcium and phosphorus) and polyunsaturated fatty acid (20:5n-3 and 22:6n-3) compared to those of snack without residues.