• 한국수산과학회지
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• 제43권2호
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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.

• 한국수산과학회지
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• 제53권2호
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• pp.147-155
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• 2020

This study aimed amount optimization of salmon Oncorhynchus keta mince (SM), threadfin bream Nemipterus virgatus surimi (TBS), natural tomato (NTC) and paprika colorants (PC) for preparation of fish cake using molding device and response surface methodology (RSM). The results of the RSM program for processing of fish cake indicated that the amount optimization of independent variables based on the dependent variables (Y₁, gel strength; Y₂, overall acceptance) for high-quality FC were 263.8 g for SM, 88.5 g for TBS, 0.11 g for NTC and 0.20 g for PC. Hunter redness and overall acceptance of fish (salmon) cake, which was prepared under the optimum amounts, were 13.82 and 8.33 score, respectively. The fish (salmon) cake was superior in sensory overall acceptance to commercial fish cake.

• International journal of advanced smart convergence
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• 제12권4호
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• pp.208-216
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• 2023

The purpose of our study is to design datasets for Artificial Intelligence learning for cold sea fish farming. Salmon is considered one of the most popular fish species among men and women of all ages, but most supplies depend on imports. Recently, salmon farming, which is rapidly emerging as a specialized industry in Gangwon-do, has attracted attention. Therefore, in order to successfully develop salmon farming, the need to systematically build data related to salmon and salmon farming and use it to develop aquaculture techniques is raised. Meanwhile, the catch of pollack continues to decrease. Efforts should be made to improve the major factors affecting pollack survival based on data, as well as increasing the discharge volume for resource recovery. To this end, it is necessary to systematically collect and analyze data related to pollack catch and ecology to prepare a sustainable resource management strategy. Image data was obtained using CCTV and underwater cameras to establish an intelligent aquaculture strategy for salmon and pollock, which are considered representative fish species in Gangwon-do. Using these data, we built learning data suitable for AI analysis and prediction. Such data construction can be used to develop models for predicting the growth of salmon and pollack, and to develop algorithms for AI services that can predict water temperature, one of the key variables that determine the survival rate of pollack. This in turn will enable intelligent aquaculture and resource management taking into account the ecological characteristics of fish species. These studies look forward to achievements on an important level for sustainable fisheries and fisheries resource management.

• 한국식품영양과학회지
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• 제42권11호
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• pp.1759-1766
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• 2013

본 연구는 오징어 간에 분포하는 효소를 활용한 은연어 육가수분해물 제조의 최적 조건과 생성된 가수분해물의 식품 및 생물 활성 특성을 조사하였다. 가열 처리한 은연어 육가수분해물 제조의 최적 조건은 가수분해 온도 $55^{\circ}C$, pH 5.5, 오징어 간의 첨가 비율 0.67%이었다. 총 구성 아미노산은 함량은 가열 및 산 처리 가수분해물에서 유의적인 차이를 보이지 않았으나, 총 유리 아미노산 함량은 조성은 산 처리가수분해물이 높았다. 한편 무기질 함량은 가열 처리 가수분해물이 높았다. Cd의 허용 기준을 고려할 때 가수분해물 제조 시 전처리 공정은 가열이 적합한 것으로 나타났다. 가열 처리한 가수분해물의 분자량은 1,000~9,500 Da이 40.0%, 500 Da이 6.7%, 200~250 Da은 12.6%, 그 이외 분자량 물질이 34.8%인 반면, 산 처리 가수분해물은 450~5,600 Da이 40.9%, 200~300 Da이 16.8%, 그 이외의 분자량이 42.3%에 해당하였다. 가수분해물은 $200{\mu}g/mL$의 농도에서 HepG2 세포에 대한 독성은 관측되지 않았다. 가수분해물의 잠재적인 적용 분야를 확인하기 위해 식품 및 건강 기능성에 대한 연구를 진행하고 있는 중이다.

• Asian-Australasian Journal of Animal Sciences
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• 제27권4호
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• pp.479-487
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• 2014

Leptin plays an important role in energy homeostasis and reproductive function in fish, especially in reproduction. Migrating fish, such as salmonoids, are affected by external environmental factors, and salinity changes are a particularly important influence on spawning migrations. The aim of this study was to test whether changes in salinity affect the expression of leptin, estrogen receptors (ERs), and vitellogenin (VTG) in chum salmon (Oncorhynchus keta). The expression and activity of leptin, the expression of ERs and VTG, and the levels of estradiol-$17{\beta}$ and cortisol increased after the fish were transferred to FW, demonstrating that changes in salinity stimulate the HPG axis in migrating female chum salmon. These findings reveal details about the role of elevated leptin levels and sex steroid hormones in stimulating sexual maturation and reproduction in response to salinity changes in chum salmon.

• 한국어병학회지
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• 제6권2호
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• pp.87-92
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• 1993

1. 1990년 2월 강원도 삼척군에 소재한 송어양식장에서 전염성 조혈기 괴사증 증상으로 산천어 자치어가 대량폐사하였다. 2. 폐사한 산천어 치어로부터 세포배양법에 의해 전염성 조혈기 괴사증 바이러스가 분리되었다. 3. 분리된 바이러스는 구조단백의 크기와 항원성에 있어 미국에서 분리된 RB-76 바이러스주(electro-pherotype 1)와 유사하였다.

• Fisheries and Aquatic Sciences
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• 제2권2호
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• pp.176-181
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• 1999

The variations of gene expression and pituitary contents of GTH subunits during the ovarian development of masu salmon, Oncorhynchus masou, were investigated. The pituitary GTHs contents was measured by radioimmunoassays (RIAs) using purified GTH subunits and their antibodies. Pituitary contents of GTH $I\beta$ gradually increased from April through August, and reached the maximum in October. On the other hand, pituitary contents of GTH $II\beta$ remained low until August, but they rapidly increased in October. Total RNAs were prepared from pooled pituitaries and the GTH subunits mRNA in pituitaries was quantified by Northern blot hybridization using masu salmon cDNA probes for each GTH subunit. GTH $I\beta$ mRNA level increased with the progression of ovarian maturity. However, GTH $II\beta$ mRNA was detected only at a more advanced stage, and were extremly high at ovulation. A high levels for GTH a mRNA was detected only at ovulation stage. The synchronous increase in pituitary contents and mRNA levels suggested that ovarian maturity in masu salmon was regulated by both GTH I and GTH II.

• 한국양식학회지
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• 제17권1호
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• pp.62-68
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• 2004

A cDNA encoding the masu salmon, Oncorhynchus masou, estrogen receptor $\alpha$ (msER$\alpha$) was cloned from the pituitary gland by polymerase chain reaction (PCR). This cDNA contains an open reading frame encoding 513 amino acid residues, and the calculated molecular weight of this protein is about 56,430 Dalton. The amino acid sequences of the DNA binding and ligand binding domains of msER$\alpha$ showed high homology to those of other fish species (84-100%). Reverse transcription PCR analysis showed that the mRNA level of msER$\alpha$ in the pituitary was slightly higher in estradiol-17$\beta$(E2) injected masu salmon than that of control fish. To test the biological activity of msER$\alpha$, the cDNA was ligated to a mammalian expression vector and transfected into a gonadotrope-derived cell line, L$\beta$T2, with a reporter plasmid including estrogen responsive element. Expression of the reporter protein, luciferase, was E2 and msER$\alpha$-dependent. The masu salmon ER$\alpha$ is structurally conserved among teleost species and functions as a transcriptional activator in the pituitary cells.

• 한국수산과학회지
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• 제30권6호
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• pp.956-963
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• 1997

To enhance application of FPC in food industry, salmon FPC hydrolysates were produced and their functional properties were investigated. Hydrolysates of salmon FPC showed high solubilities ranged from approximately $80\~95\%$. Emulsifying activity index (EAI) values of hydrolysates were higher than that of egg white, however sugar ester showed the highest EAI value of 32.5. Though sugar ester had the best emulsifying stability value $({\Delta}EAI)$ of 9.65, hydrolysates showed better ${\Delta}EAI$ value than that of egg white. Foam Activity of hydrolysates was predominantly better than those of controls and also foam stability value showed similiar trend. Osmolality of hydrolysates was increased with the increase of degree of hydrolysis (DH) and concentration of protein, but it showed very lower osmolality than that of NaCl. Flow property of hydrolysates showed different upward-downward curves, and hysteresis loop increased with the increase of DH. ACE inhibitory activity showed similiar value ranged from $21.1\~24\%$ at all DH values.

• 한국어류학회지
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• 제12권2호
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• pp.118-123
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• 2000

성어기 시마연어의 성장 관련 형질에 대한 유전율 및 표현형 상관과 유전 상관의 추정을 실시하였다. 유전 인자는 전장, 체중 그리고 두장에 관하여 시마연어의 19개월령 및 23개월령에서 추정을 실시하였다. 유전율은 1995년 19개월령에서는 각각의 성장 형질에서 0.22로 추정되었으며, 1996년 23개 월령에서는 0.19~0.36으로 추정되었다. 성장 형질들간의 표현형 상관 및 유전 상관은 각각 0.85~0.98, 0.67~1. 26으로 높게 나타났다. 시마연어의 성장을 향상시키기 위해서는 가족 선발 혹은 가족 선발내의 개체 선발을 가미한 조합 선발이 유효할 것으로 판단된다.