• Title, Summary, Keyword: seafood by-products

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Processing Optimization of Seasoned Laver Pyropia yezoensis Using Seasoning Sauce with Conger Eel Conger myriaster (붕장어(Conger myriaster) 시즈닝을 활용한 조미김(Pyropia yezoensis)의 제조공정 최적화)

  • Kim, Do Youb;Kang, Sang In;Lee, Chang Young;Kim, Hye Jin;Lee, Jung Suck;Heu, Min Soo;Kim, Jin-Soo
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.53 no.3
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    • pp.368-381
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    • 2020
  • This study was conducted to optimize the processing conditions of seasoned laver Pyropia yezoensis with conger eel Conger myriaster seasoning sauce (CES) using response surface methodology (RSM). The RSM program results for bonesoftness showed that the optimum independent variables based on the dependent variables (Y1, lipid removal rate; Y2, texture; and Y3, sensory fish odor score) were 431.0% for X1 (water amount), 115.6℃ for X2 (retort-operated temperature), and 50.1 min for X3 (retort-operated time). The RSM program results for the CES blend showed that the optimum independent variables (X1, amount of bone-softened conger eel by-products; X2, mixed sauce amount; and X3, starch amount) based on the dependent variables (Y1, amino-N; Y2, Hunter redness; and Y3, drying time) were 44.8% for A (pre-treated conger eel by-product), 36.0% for B (mixed sauce), and 19.2% for C (starch). The RSM program results for seasoned laver with CES showed that the optimum independent variables based on the dependent variables (Y1, water activity; Y2, Hunter yellowness; and Y3, overall acceptance) were 5.0% for X1, (CES amount), 313.8℃ for X2 (roasting temperature), and 6.0 s for X3 (roasting time). The seasoned laver with CES prepared under the optimum conditions was superior to commercial seasoned laver in terms of overall acceptance.

Comparison of Food Component of Oyster Drip Concentrates Steamed under Different Retort Pressures (레토르트 열처리 조건에 따른 굴자숙수 농축물의 식품성분 특성 비교)

  • Yoon, Min-Seok;Kim, Hyung-Jun;Park, Kwon-Hyun;Heu, Min-Soo;Yeum, Dong-Min;Kim, Jin-Soo
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.42 no.3
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    • pp.197-203
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    • 2009
  • This study was conducted to investigate the food components of cooking drips from shell oysters steamed under various retort pressures. Among the drips from shell oyster steamed under different retort pressures (1.0, 2.0, 2.5, 3.0, 3.5, 4.0 and 4.5 kg/$cm^2$) the oyster drip obtained at the 4.5 kg/$cm^2$ of retort pressure had the highest degree of brix, yield, crude protein, glycogen and trichloroacetic acid soluble-N contents, while its salinity was the lowest. In the results of food safety test, the presence of E. coli (18 MPN/100 g>) and viable cell (30 CFU/g>) in the oyster drip was in acceptable level as a food-stuff. However, the sensory evaluation such as color, flavor and taste, total amino acid and free amino acid contents of cooking drip from shell oyster steamed at 4.5 kg/$cm^2$ were inferior to those of oyster wash water. Differences in the major amino acids of total amino acid and free amino acid between oyster cooking drip and oyster wash water were also found. The results suggested that the effective use methods of oyster cooking drip should be investigated.

Nutritional and Taste Characterization of Commercial Salted Semi-dried Brown Croaker Miichthys miiuy (시판 반염건 민어(Miichthys miiuy)의 영양 및 맛 특성)

  • Park, Kwon Hyun;Kang, Sang In;Kim, Yong Jung;Heu, Min Soo;Kim, Jin-Soo
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.48 no.6
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    • pp.857-863
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    • 2015
  • This study characterized the nutrition and taste of commercial salted semi-dried brown croaker Miichthys miiuy (SSD-BC). The mean crude protein content of the commercial SSD-BC was $19.8{\pm}1.7%$ (range, 17.7-23.2%), and the mean crude lipid content was $0.6{\pm}0.3%$ (range, 0.3-1.1%). The total amino acid content ranged from 17.08 to 18.56 g/100 g, except for sample code 5, which was 22.24 mg/100 g and differed significantly from the other samples. The major amino acids in the commercial SSD-BC were aspartic acid, glutamic acid, leucine, and lysine. In the commercial SSD-BC, the calcium ranged from 11.1-21.4 mg/100 g, phosphorus from 148.4-209.2 mg/100 g, and magnesium from 12.2-48.2 mg/100 g. Monoenoic acid (37.1-40.3%) was the most common fatty acid, followed by saturated acid (33.9-36.3%) and polyenoic acid (25.1-29.2%). The prominent fatty acids in the commercial SSD-BC were 16:0 (23.9-26.5%), 16:1n-7 (11.3-13.0%), 18:1n-9 (19.7-21.5%), and 22:6n-3 (6.9-10.7%). The mean trichloroacetic acidsoluble nitrogen content was 248.1 (range, 137.2-334.2) mg/100 g. The evaluation demonstrated that the commercial SSD-BC is rich in nutrition and taste.

The Effects of Edible Coating and Hurdle-Technology on Quality Maintenance and Shelf-Life Extension of Seafood (식용 코팅 및 허들기술이 수산물의 품질 유지와 저장성 연장에 미치는 영향)

  • Baek, Ji Hye;Lee, So-Young;Oh, Se-Wook
    • Journal of Food Hygiene and Safety
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    • v.35 no.3
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    • pp.205-212
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    • 2020
  • Foodborne diseases occur frequently and have various being related to the intake of contaminated foods. Seafood products are susceptible to contamination due to higher water content and microorganisms, which combine to give them a short shelf-life. Various approaches have been applied to overcome this problem. Edible coatings that are also biodegradable and biocompatible have been discussed as one of the applicable solutions. These coatings can actually help to maintain seafood quality by inhibiting the growth of microorganisms and delaying the loss of moisture. This paper presents the effects of various natural bio-polymers, antimicrobial substances and physical sterilization techniques such as gamma irradiation, ultraviolet (UV) sterilization, and light-emitting diode (LED) sterilization on seafood coatings.

Processing and Characteristics of Canned Seasoned Boiled Oyster Crassostrea gigas and Canned Seasoned Roasted Oyster Crassostrea gigas (조미 자숙굴(Crassostrea gigas) 통조림 및 조미 구운굴(Crassostrea gigas) 통조림의 제조 및 품질특성)

  • Park, Jun-Seok;Park, Du-Hyun;Kong, Cheong-Sik;Lee, Yeong-Man;Lee, Jae-Dong;Park, Jin-Hyo;Kim, Jeong-Gyun
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.51 no.5
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    • pp.469-476
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    • 2018
  • The purpose of this study was to collect basic data that could be used in the manufacture of two kinds of canned oyster Crassostrea gigas. The steamed oyster was prepared by shucking after boiling for 6 min at $105^{\circ}C$ and then washing and dewatering. The roasted oyster was prepared by baking steamed oyster at $140^{\circ}C$ for 20 min. The manufacturing methods of canned seasoned boiled oyster and canned seasoned roasted oyster were as follows. The boiled or roasted oyster (50 g) was added to a can (RR-90) along with a mixture of seasoning sauce 40 and then seamed using a vacuum seamer under 20 cm Hg after pre-exhausting at $90^{\circ}C$ for 20 min. The two kinds of canned oyster products produced under sterilization of Fo 12 min were tested for cultured bacteria, external appearance, proximate composition, pH, VBN (Volatile basic nitrogen), TBA (Thiobarbiuric aicd) value, amino-N, salinity, color value sensory evaluation, etc. Results showed that the canned seasoned roasted oyster had higher overall acceptability than the canned seasoned boiled oyster. The reason for this was judged to be that the process of roasting at $140^{\circ}C$ for 20 min influenced the sensory evaluation.

Available Components of Cooking Drips, Dark Muscle, Head and Raw Vicera from Skipjack (가다랑어 자숙액, 혈합육, 두부 및 내장의 유효성분)

  • CHOI Yeung Joon;KIM In-Soo;LEE Keun-Woo;KIM Geon-Bae;LEE Nahm-Gull;CHO Young-Je
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.29 no.5
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    • pp.701-708
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    • 1996
  • To evaluate the possibility of using a by-products of skipjack canning as a food or feedstuff, the proximate composition, total and free amino acids, total lipid composition, and nucleotide related compounds were analyzed. The crude protein was highest in dark muscle, while lipid was highest in head. The important total amino acids in by-products were founded to be glycine, glutamic acid, alanine and histidine. The important free amino acids from dark muscle and head were taurine, histidine and anserine. The amounts of histidine, anserine and carnosine in dark muscle was higher than those of cooking drips, head, and raw vicera. The major fatty acids in by-products were palmitic, stearic, oleic and docosahexaenoic acid (DHA). The inosine and hypoxanthine were important nucleotide related compounds in by-products. The results suggests that by-products from skipjack can be used as food sources and feedstuffs especially for marine fish culture.

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Comparisons of the Sensory and Physicochemical Characterizations of Alaska Pollock Theragra chalcogramma Roe by Grade (명란의 등급별 관능적 및 이화학적 품질 특성 비교)

  • Jeong, Hyo-Pin;Cha, Jang Woo;Yoon, In Seong;Lee, Jung Suck;Heu, Min Soo;Jeong, Eun-Jeong;Kim, Jin-Soo
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.52 no.3
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    • pp.199-208
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    • 2019
  • The present study compared the sensory and physicochemical characterizations of Alaska pollock Theragra chalcogramma roe according to the L, M, S, 2S, KA, KB, KC, and G grades. The mean weights of the Alaska pollock roe were 81.2 g (74.1-85.7 g) in the L grade, 48.4 g (41.1-54.8 g) in the M grade, 38.6 g (33.5-45.6 g) in the S grade, 29.3 g (25.7-34.2 g) in the 2S grade, 45.7 g (41.4-50.0 g) in the KA grade, 41.4 g (37.7-46.1 g) in the KB grade, 38.3 g (36.0-42.6 g) in the KC grade, and 15.0 g (14.2-15.6 g) in the G grade. The results of the sensory (transparency, physical damage, texture, and odor) and physicochemical (moisture, amino nitrogen and volatile basic nitrogen contents, Hunter redness, and texture) evaluations revealed that, in the normal group, the quality of Alaska pollock roe was highest in the L grade followed by the M, S, and 2S grades whereas, in the cut-group order, the quality was highest in the KA grade followed by the KB, KC, and G grades. The present results suggest that the L, M, S, 2S, KA, and KB grades could be used for high-quality Alaska pollock roe products.

Whole-Body Microbiota of Sea Cucumber (Apostichopus japonicus) from South Korea for Improved Seafood Management

  • Kim, Tae-Yoon;Lee, Jin-Jae;Kim, Bong-Soo;Choi, Sang Ho
    • Journal of Microbiology and Biotechnology
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    • v.27 no.10
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    • pp.1753-1762
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    • 2017
  • Sea cucumber (Apostichopus japonicus) is a popular seafood source in Asia, including South Korea, and its consumption has recently increased with recognition of its medicinal properties. However, because raw sea cucumber contains various microbes, its ingestion can cause foodborne illness. Therefore, analysis of the microbiota in the whole body of sea cucumber can extend our understanding of foodborne illness caused by microorganisms and help to better manage products. We collected 40 sea cucumbers from four different sites in August and November, which are known as the maximum production areas in Korea. The microbiota was analyzed by an Illumina MiSeq system, and bacterial amounts were quantified by real-time PCR. The diversity and bacterial amounts in sea cucumber were higher in August than in November. Alpha-, Beta-, and Gammaproteobacteria were common dominant classes in all samples. However, the microbiota composition differed according to sampling time and site. Staphylococcus warneri and Propionibacterium acnes were commonly detected potential pathogens in August and November samples, respectively. The effect of experimental Vibrio parahaemolyticus infection on the indigenous microbiota of sea cucumber was analyzed at different temperatures, revealing clear alterations of Psychrobacter and Moraxella; thus, these shifts can be used as indicators for monitoring infection of sea cucumber. Although further studies are needed to clarify and understand the virulence and mechanisms of the identified pathogens of sea cucumber, our study provides a valuable reference for determining the potential of foodborne illness caused by sea cucumber ingestion and to develop monitoring strategies of products using microbiota information.

A Retrospective Study on the Comparison of Outbreaks of Food Poisoning for Food Hygiene in Korea and Japan

  • Lee, Won-Chang;Chung, Choog-Il
    • Journal of Food Hygiene and Safety
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    • v.11 no.4
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    • pp.277-285
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    • 1996
  • Retrospective study on the comparison of outbreaks of food poisoning for food hygiene in Korea and Japan. The average value of morbidity rate by year in Korea during the period of 1971 to 1992 was 2.9 per 100,000 population, and that of Japan was 29.1. The mean value of mortality rates in case of food poisoning by year in Korea was 2.33%, and that of Japan was 0.07%. When compared the rates of morbidity and mortality between Korea and Japan during the same period, the morbidity rates of Japan were much higher than those of Korea (p<0.01). However, mortality rate of patients in Korea were much higher then those of Japan(p<0.01). Resulting from comparative observation of food poisoning by preparing facilities between Korea and Japan. The highest list the places where the outbreaks occurred was home-made foods accounted for 48.8% of the total cases in Korea and that of Japan was restaurants accounted for 33.0%. Causative foods in Korea, the most common incrimination vehicles were seafood, meat and animal products and grain and vegetables, including mushroom. However, in the case of the common incrimination vehicles Japan were unknown and other foods, seafood, vegetables and meat and animal products etc.. Food poisoning of pathogenic substance in Korea were 60.9% of bacterial food poisoning of the total cases showing that Vibrio species, Salmonella spp., Staphylococcus spp., pathogenic E. coli, Clostridium spp. and other spp. were 33.3%, 26.2%, 16.3%, 5.3%, 0.4% and 18.5%, respectively. On the other hand, in Japan, major causes were Vibrio spp. (45.7%), Staphylococcus spp. (23.7%), Salmonella spp. (16.8%), pathogenic E. coli (3.8%), Clostridium spp. (0.2%) and other spp. (9.6%).

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Improvement on Yield and Functional Properties of Autoclave-Treated Salmon Frame Extracts using Commercial Enzymes (효소 처리에 의한 고온가압 연어 frame 추출물의 수율 및 건강 기능성 개선)

  • Heu, Min-Soo;Ji, Seong-Gil;Koo, Jae-Geun;Kwon, Jae-Seok;Han, Byung-Wook;Kim, Jeong-Gyun;Kim, Hyung-Jun;Kim, Jin-Soo
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.42 no.6
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    • pp.537-544
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    • 2009
  • This study was conducted to improve yield and functional properties of autoclave-treated salmon frame extracts (SFETA) using commercial enzymes (Alcalase 2.4 L FG, Flavourzyme 500 MG, Neutrase 0.8 L and Protamex 1.5 MG). Yield and angiotensin I converting enzyme (ACE) inhibitory activity of all enzymatic hydrolysates improved compared to those of control (undigested extracts), which were the highest in hydrolysates incubated with Protamex 1.5 MG for 4 hrs (P4-treated hydrolysates) and 2 hrs (P2-treated hydrolysates), respectively. However, antioxidant activities of all enzymatic hydrolysates showed less than 29%. According to the trichloroacetic acid soluble-N, volatile component intensity and sensory evaluation, when compared to control, taste of P4-treated hydrolysates improved, while its fish odor strongly smelt. Therefore, for efficient use of P4-hydrolysates, the fish odor should be improved by Maillard reaction of extracts or pre-treatment of salmon frame.