• 한국수산과학회지
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• 제56권6호
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• pp.818-825
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• 2023

The surge in online seafood consumption has increased parcel delivery, leading to a need to implement effective preservation methods. As the cold chain system is not fully established in Korea, styrofoam boxes and cold packs are commonly used for low-temperature seafood distribution. The impact of cold packs on product preservation depends on the number utilized. Herein, the freshness of vacuum-packed frozen fish fillets (Paralichthys olivaceus and Scomber japonicus) stored at 25±0.5℃ for up to 84 h was measured. Chemical (pH and volatile base nitrogen), microbiological (viable cell count), and physical (odor intensity) properties were assessed using 2 or 4 cold packs in a styrofoam box. Four cold packs yielded lower values, indicating superior freshness, and extended fish freshness by approximately 12 h compared with two cold packs. Therefore, it is recommended to use a minimum of 4 cold packs (-350 g/cold pack) in a styrofoam box for distributing approximately 300 g of frozen fish fillets at room temperature during the summer, considering an average delivery period of 2 days in Korea.

• 한국식품조리과학회지
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• 제18권1호
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• pp.1-7
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• 2002

우리나라 중 ·고등학생들의 수산물에 대한 기호도를 조사하고, 특히 학교에서 제공되는 식단이 이들의 기호도에 얼마나 근접되어 있는지를 조사함으로써 학교급식에서의 수산물 소비를 증진시키기 위하여 전국의 중학생 892명과 고등학생 1010명을 대상으로 조사한 결과를 요약하면 다음과 같다. 1. 수산물에 대한 선호도를 조사한 결과 평균 50% 정도가 수산물을 좋아하는 쪽으로 답하였으며, '싫어하는 편이다' 혹은 '아주 싫어한다'라고. 한 학생은 10% 미만이었다. 2. 수산물을 좋아하는 이유에 대해 중학생이나 고등학생 모두 '맛이 좋아서'라고 응답한 비율이 각각 61.0%와 62.6%로 가장 높게 조사되었으며, 다음으로는 '영양이 풍부하기 때문'이라고 한 응답 비율이 2위를 차지하였다. 한편 수산물을 싫어하는 가장 큰 원인은 '냄새' 때문인 것으로 나타났다. 3. 수산물을 이용한 조리법으로는 중 ·고등학생 모두 회(중학생 28.4%, 고등학생 34.4%)와 튀김(중학생 21.1%, 고등학생 15.4%), 구이(중학생 20.4%, 고등학생 19.0%)를 선호하는 것으로 나타났다. 반면 젓갈, 무침, 국, 전 등의 조리방법은 그 선호도가 10%에도 미치지 못하였다. 4. 수산물에 대한 기호도 조사 결과 중 ·고등학생들은 꽃게, 새우, 참치, 오징어 등을 이용한 음식을 좋아하였으며, 조리법으로는 튀김류와 볶음류를 선호하고 있었다. 5. 수산물을 육류와 비교하였을 때 수산물의 영양적인 우수성을 가장 많이 인정하고 있었으나, 수산물은 비위생적이고 조리가 번거로우며 맛이 떨어진다는 문제점이 지적되기도 하였다. 6. 학교급식시 제공되는 수산물 음식에 대하여 '매우 좋아한다'라고 응답한 비율은 중학생 6.6%, 고등학생 3.7%에 불과하였으며, 특히 중학생들은 매우 낮은 기호도를 보이고 있었다. 그 이유에 대해서는 '맛이 좋지 않다'라는 점이 가장 많이 지적되었다(중학생 14.7%, 고등학생 23.5%). 7. 수산물 음식의 개선방향에 대하여 맛이 향상되기를 가장 많이 희망하고 있었으며(중학생 37.7%, 고등학생 48.5%), 그 다음이 종류의 다양화(중학생 19.8%, 고등학생 24.0%), 조리법의 다양화(중학생 12.6%, 고등학생 22.4%)의 순이었다. 본 연구에서 중·고등학생들이 수산물을 기피하는 이유로는 수산물 자체의 맛 때문이며, 조리방법에 따라서도 좌우되는 것으로 나타났다. 음식에 대한 기호도는 식품의 종류에 따른 기호와 더불어 조리법에 따른 기호가 복합적으로 작용한다. 따라서 선호 경향이 높지 않은 수산물이라도 조리법에 변화를 주어 그 수용도를 증가시킴으로써 다양한 수산물을 섭취할 수 있도록 하는 노력이 요구된다.

• Bulletin of the Korean Chemical Society
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• 제31권11호
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• pp.3084-3092
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• 2010

This paper describes the development of an automated, hand-held sensor for the fast assessment of seafood freshness. The sensor developed here combined: an array-based chemical sensor, composed of incrementally different conducting polymer elements deposited on a small chip; a highly sensitive, custom-made electronics for the detection of very small signal changes; precise temperature control of the sensor chamber; and an on-board microcontroller for data collection, storage, automation, and analysis. The instrument was used to successfully test seafood samples with different degree of freshness and spoilage. A linear relationship between microbiological count and e-Nose signal for three different fish fillet was developed. Once the linear relationship is included into the hand-held unit software, the e-Nose signal can be used for assessment of seafood freshness without performing the microbiological count technique.

• 한국수산과학회지
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• 제49권3호
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• pp.330-336
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• 2016

Pollution caused by fecal solids released from recirculating aquaculture systems (RAS) is a growing global concern requiring immediate attention. Thus, this study investigated the physicochemical characteristics of fecal solid feed from RASs used for eel and rainbow trout farming. The concentrations of proteins, lipids, crude ash, and moisture in eel fecal solids were 10.9%, 1.2%, 85.8%, and 72.2%, respectively, while those in rainbow trout fecal solid feed were 20.5%, 3.2%, 70.9%, and 87.0%, respectively. The control group was fed a mixture of sea cucumber and dried sea mud. The protein digestibilities of eel and rainbow trout fecal solids were 25.43% and 23.96%, respectively, while the respective lipid digestibilities were 35.62% and 36.80%, respectively.

• 한국정보통신학회논문지
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• 제12권9호
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• pp.1623-1632
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• 2008

식품선택에 있어서 소비자들은 철저한 품질관리를 통한 식품의 안전성과 신뢰성을 중요하게 여긴다. 또한 지역과 환경을 고려한 지속 가능한 생산과 소비에 관심이 많다. 본 연구에서는 소비자의 요구와 세계적인 식품인증 흐름에 따른 안전성과 신뢰성 있는 수산물 생산을 위해, 국제적 위생관리 기준인 HACCP인증과 이력제 인증, 친환경 수산물인증의 기반시스템이 되도록 고품질 수산물 생산지원시스템을 제안하고 설계하였다. 고품질 수산물 생산지원 시스템은 양식장 HACCP, 환경 제어모니터링, 생산이력, 질병예방/질병알림, 수산물 가격조회 등 5개 부분으로 구성된다. 제안 시스템은 다양한 u-IT 기술인 USN, 네트워크 CCTV, 모바일 기기 등의 첨단 융 복합 기술을 활용한다.

• The Journal of Asian Finance, Economics and Business
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• 제9권4호
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• pp.93-98
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• 2022

The article analyzes the impact of factors affecting the use of cost information is examined, which adds to the empirical evidence on the factors affecting the use of cost information in Vietnam's seafood processing firms. 58 seafood processing firms in Vietnam were surveyed using a questionnaire survey of all levels of management, chief accountants, and accountants. A total of 235 questionnaires were gathered for the survey. Because many of the surveys were invalid due to empty cells, the author selected to use 214 questionnaires. The 5-level Likert scale is familiarly used in many studies, so the author also quantifies each factor according to five levels. Quantitative research was carried out with SPSS 25 software. Research results show that 4 factors The function of cost information, cost management, information technology, and management support in the seafood processing industry in Vietnam all have a positive impact on the use of cost information. The author has provided recommendations based on the research findings to expand the use of cost information, consequently helping to improve the performance of Vietnamese seafood processing businesses. Managers must improve a variety of resources, including facilities (software, hardware), people (in-depth training on CAS for administration), departmental awareness, and UCI's ability to assess responsibility and reward in the organization.

• 한국수산과학회지
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• 제55권6호
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• pp.827-835
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• 2022

Commercial boiled frozen ark shell Scapharca subcrenata (BFAS) is generally used as a seasoned seafood products. One problem facing the industry is that quality decreases during thawing. This study investigated ways to improve quality and shelf-stability of BFAS for use as a non-thermally prepared seasoned seafood products. The Viable bacteria were detected in BFAS after thawing under running water, but were not detected after blanching for over 2 min at 95±5℃. Blanching and dewatering times were optimized by response surface methodology (RSM) to reduce the initial number of bacteria and improve BFAS texture. Experimental design was deemed appropriate because no significant difference (P>0.05) was observed between predicted and actual moisture content, hardness, and overall acceptance values. Optimal blanching and dewatering times were 210 s and 80 s, respectively. Optimized blanching and dewatering processes can significantly improve safety and BAFS qualities including texture. These results indicate that BFAS demand as a staple for home meal replacements can be increased by application of optimized blanching and dewatering processes, especially in Korean seafood processing companies where running water thawing is common.

• Fisheries and Aquatic Sciences
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• 제5권2호
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• pp.79-86
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• 2002

Listeria spp. were isolated from the samples submitted from various seafood plants such as raw materials, products, swab samples of plants floor and conveyor belts through the whole processing procedures. All the samples were collected from 3 kinds of seafood plants such as a imitation crab meat plant, jeotgal plant and frozen seafood plant. And also serotypes of the identified L. monocytogenes were determined. Among the 301 strains of isolated Llsteria spp., 96 strains, 179 strains and 26 strains were identified as L. monocytogenes, L. innocua and L. welshimeri, respectively. While among the 145 strains of Listeria spp. isolated from the imitation crab meat plant, $74\;(51.0\%)$ strains, $64\;(44.1\%)$ strains and $7\;(4.8\%)$ strains were identified as L. monocytogenes, L. innocua and L. welshimeri, respectively. In the case of the 126 strains of Listeria spp. isolated from the frozen seafood plant, $22\;(17.5\%)$ strains of L. monocytogenes,$93\;(73.8\%)$ strains of L. innocua, and $11\;(8.5\%)$ strains of L. wdshimeri were detected. Among the 30 strains isolated from a jeotgal plant, $22\;(73.3\%)$ strains of L. innocua and $8\;(26.7\%)$ strains of L. welshimeri were detected. The detection rates of L. monocytogenes, one of the very important food poisoning bacteria especially in frozen and/or refrigerated seafoods, were relatively high as $77.1\%$ (74/96 strains) in a imitation crab meat plant and $22.9\%$ (22/96 strains) in a frozen seafood plant, but not detected from jeotgal plant. Distribution of L. monocytogenes serotypes and characterization were examined. The serotypes of 96 L. monocytogenes isolated from pork skin, pork fat, the floor and conveyor belts were 1/2a $(59.4\%)$, l/2b $(6.2\%)$, 1/2c $(12.5\%)$ and unknown serotypes $(21.9\%)$. Unknown serotypes were divided into three specific groups by the O antigen they have.

• 한국수산과학회지
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• 제27권6호
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• pp.839-846
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• 1994

Changing concepts in fishery science increasingly are recognizing depletion of traditional stocks, utilization of alternate(non-traditional) species, demand for high quality products, and a total resource utilization approach. Innovative practices are occurring in fisheries processing wherein solid and liquid discharges are no longer treated as 'waste,' but rather as valuable feedstocks for recovery of a variety of value-added ('value enhanced') by-products. Among these are protein hydrolysates, soluble proteins and amino acids, proteolytic enzymes, flavor and flavor extracts, pigments, and biopolymers such as chitosan. Properties and applications of this deacetylated derivative of chitin are noted. Crustacean processing by-products are discussed in terms of their serving as materials for generation of natural flavors and flavor extracts, and products such as fish sauces using contemporary enzymatic techniques. Various food and feed applications of fisheries processing by-products are illustrated with increased usage seen in formulated diets for an expanding aquaculture market. Examples are given of aquaculture becoming increasingly significant in global fisheries resource projections. Critical issues in the international seafood industry Include those of seafood quality, processing quality assurance (HACCP), and recognition of the nutritional and health-related properties of fisheries products. A variety of current seafood processing research is discussed, including that of alternate fish species for surimi manufacture and formulation of value-added seafood products from crawfish and blue crab processing operations. Increasing emphasis is being placed on international aspects of global fisheries and the role of aquaculture in such considerations. Coupled with the need for the aquatic food industry to develop innovative seafood products for the 21st century is that of total resource utilization. Contemporary approaches in seafood processing recognize the need to discard the traditional concept of processing 'waste' and adapt a more realistic, and economically sound, approach of usable by-products for food and feed application. For example, in a period of declining natural fishery resources it is no longer feasible to discard fish frames following fillet removal when a significant amount of residual valuable flesh is present that can be readily recovered and properly utilized in a variety of mince-based formulated seafood products.

• 한국수산과학회지
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• 제49권3호
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• pp.263-269
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• 2016

Large quantities of by-products—such as fish frame, head, skin and viscera—are generated during seafood processing, and these by-products are not utilized extensively. Therefore, sea rainbow trout Oncorhynchus mykiss (SRT) frame muscle (FM) jerky was prepared by grinding SRT-FM, followed by mixing with seasoning, forming and drying. The nutritional and microbiological characteristics of the SRT-FM jerky were then investigated. The proximate composition of the SRT-FM jerky was 19.1% moisture, 38.7% crude protein, 7.9% crude lipid and 4.4% ash. The viable bacterium count of the SRT-FM jerky was 3.9 log CFU/g, and Escherichia coli and Staphylococcus aureus were not detected. The total amino acid content of SRT-FM jerky was 37.3 g/100 g, and the major amino acids were aspartic acid, glutamic acid, leucine and lysine. Based on the recommended daily intake of fish jerky (100 g), the most abundant mineral was potassium. The fatty acid composition of the SRT-FM jerky was 26.2% saturated acid, 34.5% monoenoic acid and 39.3% polyenoic acid, and the major fatty acids were 16:0, 18:1n-9, 18:2n-6, 20:5n-3 and 22:6n-3. These results suggest that SRT-FM jerky has high nutritional value.