• Title/Summary/Keyword: Marine industry

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Quality Characteristics of Canned Boiled Oyster and Canned Boiled Oyster in Bamboo Salt in Various Sterilization Conditions (살균조건에 따른 굴 보일드통조림 및 죽염 굴 보일드통조림의 식품 품질 특성)

  • Kong, Cheong-Sik;Je, Hae-Soo;Jung, Jae-Hun;Kwon, Soon-Jae;Lee, Jae-Dong;Yoon, Moon-Joo;Choi, Jong-Duck;Kim, Jeong-Gyun
    • Journal of Fisheries and Marine Sciences Education
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    • v.26 no.6
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    • pp.1231-1244
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    • 2014
  • Oysters, especially are excellent source of several mineral including iron, zinc and selenium, which are often low in the mordern diet. They are also an excellent source of glycogen, vitamin B12 and considered the healthiest when eaten raw on the half shell in good tasted season from November to March. This study was investigated for the purpose of obtaining basic data which can be applied to processing of two kinds of canned boiled oyster (canned boiled oyster, canned boiled oyster in bamboo salt). Shucked oyster meat was cooked in steam (15min) after washing with water, filled 90g into can (301-3), added with salt solution and then precooked for 10 min. at $100^{\circ}C$. Canned boiled oyster was added 1.5% salt solution 60mL. Canned boiled oyster in bamboo salt was added 0.5% salt solution 30mL and 0.7% bamboo salt solution 30mL. The cans were seamed using a vacuum seamer, and then sterilized for various Fo values (Fo 8~12 min.) in a steam system retort at $116^{\circ}C$, $118^{\circ}C$. Viable bacterial count, proximate composition, pH, salinity, yield, VBN, amino-N, TBA, mineral, color value, free amino acid, hardness and sensory evaluation of two kinds of canned boiled oyster produced at various sterilization condition (Fo 8~12 min.) were measured after divide to meat and juice. The results showed that canned boiled oyster in bamboo salt sterilized at Fo 8 min. was the most desirable because this condition is the most economical and tasty.

Fractionation and Characterization of Protease Inhibitors from Fish Eggs Based on Protein Solubility (어류 알로부터 Protease Inhibitors의 단백질 용해도 차이에 의한 분획 특성)

  • Kim, Hyeon Jeong;Kim, Ki Hyun;Song, Sang Mok;Kim, Il Yong;Park, Sung Hwan;Gu, Eun Ji;Lee, Hyun Ji;Kim, Jin-Soo;Heu, Min Soo
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.46 no.2
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    • pp.119-128
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    • 2013
  • A protease inhibitor was fractionated from fish eggs using methods based on protein solubility. Fractionation efficiency was evaluated with regard to percent recovery and total inhibitory activity (U). The fractionation of protease inhibitor (PI) from egg extracts of skipjack tuna (ST, Katsuwonus pelamis), yellowfin tuna (YT, Thunnus albacores), and Alaska pollock (AP, Theragra chalcogramma) was performed by precipitation with cold acetone or ammonium sulfate (AS). Fractions exhibiting the strongest inhibitory activity contained 20-40% (v/v) cold acetone or 40-60% saturated AS fractions. AS fractionation was more effective in isolating PI than was precipitation with acetone. The total inhibitory activity and percent recovery of fraction obtained with AS 40-60% toward trypsin and $N{\alpha}$-benzoyl-L-arginine-p-nitroanilide (BAPNA) were 4,976 U and 24.2% for ST, 3,331 U and 38.1% for YT, and 4,750 U and 43.8% for AP, respectively. In comparisons against six commercial proteases, 40-80% AS fractions, made by combining the 40-60% and 60-80% AS fractions from fish egg extract, exhibited the strongest inhibition of trypsin when using a casein substrate. These results suggest that fish eggs act as serine protease inhibitors and may be useful for protease inhibition in foodstuffs.

Preparation and Characterization of Canned Salmon Frame (연어 frame 통조림의 제조 및 특성)

  • Park, Kwon-Hyun;Yoon, Min-Seok;Kim, Jeong-Gyun;Kim, Hyung-Jun;Shin, Joon-Ho;Lee, Ji-Sun;No, Yoon-I;Heu, Min-Soo;Kim, Jin-Soo
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.43 no.2
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    • pp.93-99
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    • 2010
  • This study was conducted to prepare canned salmon frame and to characterize its food components. In the preparation of high-quality canned foods, the boiling water generated in the pre-heating process should be removed, and then the pre-treated canned salmon frame should be sterilized for an $F_0$ value of 12 min. The proximate composition of the canned salmon frame prepared under optimal conditions (CSFP) was 58.4% moisture, 15.7% protein, 21.4% lipid, and 3.5% ash. Based on the results of volatile basic nitrogen and microbiological tests, the CSFP was acceptable. The sensory score for the color of CSFP was 4.1 points, which was higher than that of commercial canned salmon frame (CCSF). However, there were no significant differences in the sensory scores for flavor and taste between CSFP and CCSF. The total amino acid content of CSFP was 14.58 g/100 g, which was 4.9% lower than that of CCSF. The major amino acids in CSFP were aspartic acid (11.0%), glutamic acid (14.8%), and lysine (10.6%), which accounted for 36.4% of the total amino acid content. The CSFP was high in calcium and phosphorus, while it was low in magnesium and zinc. The major fatty acids in CSFP were 16:0 (15.2%), 18:1n-9 (17.0%), 18:2n-6 (16.7%), 20:5n-3 (9.3%), and 22:6n-3 (8.8%). Based on the results, CSFP is a high-quality canned food in terms of hygiene and nutrition.

The Promotion of Experiential Marine Sports by Developing aPlan for Fishing Village and Port (어촌·어항을 활용한 해양스포츠 체험관광 활성화 방안)

  • JI, Sam-Up;KIM, Yong-Jae;LEE, Jae-Hung
    • Journal of Fisheries and Marine Sciences Education
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    • v.17 no.1
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    • pp.86-105
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    • 2005
  • The plan of developing a fishing village and port will be indirectly funded by the government. In the short term, there will be five different multi-functional fishing village models which are based on the first industry to attach to the third industry of marine sports experience tourism. In the long run, they have to be reached gradually. The popular scenic spot of the marine sports experience tourism is made by human resources and fundamental installations considering that it must be done in unpolluted water. It is necessary to separate the fish harbor into two sides. One side is an existing fishing industry. The other side is made up of several pontoons for the marine sports equipment of the marine mooring. It is necessary to build facilities, such as the mooring facility, the storage facility, the repair-check facility, supply-cleaning facility, information booth, accommodations, education facility, and a marine culture exchange facility.

Ecologically Sustainable Management of Short-necked Clam, Ruditapes philippinarum, on the Coast of Yeongi at Tongyeong, Korea (통영 연기해역의 바지락자원 적정관리에 관한 연구)

  • Cho, Sang-Man;Jeong, Woo-Geon;Lee, Sang-Jun
    • The Korean Journal of Malacology
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    • v.24 no.3
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    • pp.189-197
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    • 2008
  • In order to develop the sustainable ecological management, short-necked clams, Ruditapes philippinarum, were collected from Yoengi coast in Tongyoeng, Korea. The growth of the clam was estimated as: $L_f=68.08{\cdot}(1-e^{-0.145(t+0.324)})$ from ring radius composition of shell. Instantaneous co-efficiency of total mortality and natural mortality were calculated as: 0.991/year and 0.494/year, respectively. The age of the clams from the first capture was estimated to be 3.28. The total biomass was estimated to be 212 MT in the fisheries area (6.4 ha). Applied by these parameters, the annual recruit biomass and the current yield per recruit were calculated to be 649.5 individual/$m^2$ and $0.7\;g/m^2$, respectively. The current fishing intensity was much lower for maximum sustainable yield and acceptable biological catch. Although higher yield per recruit could be achieved by increasing fishing intensity, it is favorable to retain the current fishing intensity because of the unique fishing attitude on Yeongi coast in Tongyoeng, Korea.

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Species Composition of Fishes in the Eelgrass Bed of Jangpyeong in Tongyeong, Korea (통영 장평리 잘피밭에 출현하는 어류의 종조성)

  • Choi, Hee Chan;Park, Jong Hyeok;Baeck, Gun Wook
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.51 no.3
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    • pp.278-285
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    • 2018
  • Monthly variation in species composition of fishes in the eelgrass bed of Jangpyeong in Tongyeong, Korea was determined using monthly samples from a seine net from May 2016 to April 2017. A total of 32 species, 2,042 individuals and 3,991.1 g of fishes were collected during the study period. The dominant species were Takifugu niphobles, Rudarius ercodes, Gymnogobius heptacanthus, Zoarchias glaber, Pholis nebulosi and Leucopsarion petersii. These species accounted for 79.5% of the total number of individuals. The fish assemblages in the eelgrass bed showed clear seasonal changes: the number of fish species increased in March and was highest in October, while the number of individuals increased in December and was highest in July.

Diet composition of the sandfish, Arctoscopus japonicus in the coastal waters of East Sea, Korea (동해 연안에 출현하는 도루묵(Arctoscopus japonicus)의 위내용물 조성)

  • KANG, Da Yeon;KO, A-Reum;JEONG, Jae Mook;BAECK, Gun Wook
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.55 no.4
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    • pp.320-326
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    • 2019
  • The diet composition of Arctoscopus japonicus was studied using 448 specimens collected in the coastal waters of East Sea, Korea. The size of the specimens ranged from 6.2-25.3 cm in total length (TL). A. japonicus were fed mainly on amphipods that constituted 76.1% in IRI. Euphausiids were the second largest prey component. The diets also include small quantities of crabs, copepods, mysids, cephalopods, monogeneans, and fishes. A. japonicus showed ontogenetic changes in feeding habits. Smaller individuals (6-10 cm, TL) fed mainly on amphipods. The proportion of amphipods decreased as body size increased, whereas the consumption of euphausiids gradually increased (10-14 cm, TL). As the body size more increased, the proportion of amphipods increased whereas euphausiids decreased (14-26 cm, TL).

Technical Trends and Issues Related to Maintenance/Inspection Drones for Ships or Offshore Plants (선박/해양플랜트 유지보수 점검용 드론의 기술현황과 과제)

  • Kim, Kyunghwa;Chun, Kangwoo
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.23 no.5
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    • pp.585-594
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    • 2017
  • Drones, which were first developed for the military use, have been widely applied in various industrial fields through the rapid development of element technology. Following this trend, the marine industry has started to utilize drones for maintenance and inspection purposes, especially, in Europe. To extend the use of drones in the marine industry, this paper first discusses the necessity of drones for the marine use by presenting problems related to maintenance and inspection works on ships and offshore plants. In addition, the technical levels of advanced countries where drones have been commercialized already in the marine industry are mentioned. Furthermore, technical challenges that must be solved are explained in preparation for a drone era in the marine industry. Lastly, the potential growth of the drone market in the marine industry is considered.

Policy Tasks for bringing the Marine Healing Industry to Waterfront Spaces (해양친수공간에서 해양치유산업의 정책 과제)

  • PARK, Hong-Gyun
    • The Journal of shipping and logistics
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    • v.34 no.4
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    • pp.677-694
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    • 2018
  • The ocean is a unique space for exchange with the city, forming an organic relationship between people and waterfront areas. The marine healing industry improves quality of life through medical care and well-being, and creates added value by combining with the medical industry. The policy analysis results are as follows. First, the marine healing industry is the newest high-growth area. Furthermore, a professional medical service hospital is the first priority. This will include the development of marine healing facilities and strengthening forest healing connectivity, emphasizing the development of highly specialized medical technologies. The second priority is value creation in marine healing specialization, accompanied by an integrated and systematic policy for research and development of new medicines in marine healing effects. It is also important to apply new market trends and develop applied marine healing service programs. Thirdly, it is necessary to explore the possibility of a fragmented market for policy development.