• Preventive Nutrition and Food Science
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• 제4권2호
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• pp.103-106
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• 1999

Fish sauce is a liquid form of salt-fermented fish and has played an important role in Korean dietary life. Fish sauce was manufactured by utilizing Alaska pollack scrap from Himedara(seasoned and dried Alaska pollack tail) processing . In addition, the effects of squid viscera as a fermentation enhancer were also evaluate.Ph of Alaska plllack scrap sauce with squid viscera was lower than that of control over the entire fermentation process. Squid viscera acceleraged the production of amino-nitrogen, VBN , TBA and free amino acids, and the degradation of IMP and Inosine. The addition of squid viscera and koji at 5% concentration, respectively , also accelerated the digestion of Alaska pollack scrap and was similar to the results of squid viscera at 10% concentration.

• Fisheries and Aquatic Sciences
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• 제12권4호
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• pp.305-310
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• 2009

This study was carried out to evaluate the use of fermented skipjack tuna viscera (FSTV) as an alternative for fish meal in juvenile olive flounder (Paralichthys olivaceus) diets. Lactobacillus bulgaricus was used as a starter for fermentation of skipjack tuna viscera. Four isonitrogenous (49% crude protein) and isocaloric (4 kcal/g DM) diets were formulated to contain graded levels (0, 5, 10, and 15%) of FSTV. Each experimental diet was fed three replicate groups (40 fish per tank) of juvenile flounder (average weight, $3.3\pm0.2$ g) for 5 weeks. At the end of feeding experiment, inclusion of FSTV up to 15% in diets did not affect survival rate (%) and weight gain of fish. Feed efficiency, protein efficiency ratio, protein and lipid retentions of fish fed the diet containing 10% FSTV were higher than those of fish fed the control diet (P<0.05). The values of fish fed the diet containing 15% FSTV were not different from those of fish fed other diets. Whole body lipid content of fish fed the diet containing 10% FSTV was higher than that of fish fed the diet containing 15% FSTV and control diet. The present results indicate that fermented skipjack tuna viscera could partially replace fish meal in juvenile flounder feed, and the inclusion of 10% FSTV may be efficient in improving the feed utilization of fish.

• Asian-Australasian Journal of Animal Sciences
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• 제10권2호
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• pp.210-214
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• 1997

Ruminal degradation characteristics and intestinal availability of crude protein (CP) in four animal-origin feeds (fish meal, meat meal, viscera meal, feather meal) were estimated by mobile nylon bag technique. Three ruminally and duodenally cannulated Holstein dairy cows (average body wt. 550kg) fed a diet containing 40% concentrate and 60% orchard grass hay on a dry matter (DM) basis. Assuming that the outflow rate of diet in rumen is 5% per hour (k =0.05), contents of quickly degradable CP (QDP), slowly degradable CP (SDP), and undegradable CP (UDP) in the rumen were 27.6%, 9.4%, 63.0% for fish meal, 34.3% 28.1%, 37,6% for meat meal, 43.9%, 12.5%, 43.6% for viscera meal, and 14.4%, 15.8%, 69.8% for feather meal, respectively. Intestinal CP degradability was 51.0% for fish meal, 27.2% for meat meal, 37.9% for viscera meal and 56.2% for feather meal. Available UDP in the intestinal tract was contained 288 g, 217 g, 246 g and 423 g per kilogram DM of diet in fish meal, meat meal, viscera meal and feather meal, respectively.

• 한국해양바이오학회지
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• 제1권4호
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• pp.311-316
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• 2006

Enzymatic ethanolysis of fish oil with immobilized lipase was investigated for reducing the free fatty acid contents and enhancing the function of fish oil. Ethanolysis reactions were carried out in erlenmeyer flask (25ml) containing a mixture of squid viscera oil and 99.9% ethanol using 1% (based on w/w squid viscera oil) immobilized lipase. The reaction mixtures were incubated at $50^{\circ}C$ and shaken at 100rpm. Ethanol was added into the mixture by stepwise addition method of Shinmada[9]. Measurement of free fatty acid molar amounts was studied by Acid Value. Tendency of oil variation during transesterification was studied by TLC method. Enzymatic ethanolysis composed diglyceride, monoglyceride and fatty acid ethyl ester with reducing free fatty acid contents. Also, selective ethanolysis by Lipozyme TL-IM and Lipozyme RM-IM mostly did not react at the sn-2 position of squid viscera oil. Lipozyme RM-IM was more suitable enzyme to reduce the free fatty acid contents by ethanolysis than Lipozyme TL-IM. Squid viscera oil was transformed into suitable properties (5 in Acid Value) for functional fish oil production.

• 한국수산과학회지
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• 제29권3호
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• pp.296-308
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• 1996

혈합육어 (멸치와 전어)와 백색육어 (농어와 도다리)의 육과 내장에서 추출한 조효소에 대하여 천연기질 및 합성 기질에 대한 효소 활성과 disc-PAG 전기영동에서 분리된 효소 단백질의 분포를 선택적 합성기질을 써서 비교 검토하였다. 육에는 SH-proteinase인 cathepsin L, B, 및 H 유사 효소가 분포하는 것을 확인 할 수 있었으며, 이 밖에도 cathepsin G 및 D도 다소 분포하는 것으로 추정되었다. 그리고 내장에는 강한 활성의 chymotrypsin 및 trypsin 유사 효소가 주로 분포하고 있음이 확인되었다. 육과 내장에서 추출한 조효소들은 공통적으로 멸치, 전어, 도다리 그리고 농어의 순으로 활성이 높은 것을 알 수 있었으며, 전체적으로 혈합육어에 분포되어 있는 효소가 백색육어류에 분포되어 있는 효소에 비하여 약 100배정도 높았다. 육과 내장의 조효소를 방어의 근원섬유단백질에 작용시킨 결과, 육 중의 조효소는 myosin heavy chain의 분해가 두드러졌으며, 특히 멸치의 효소가 근원섬유 단백질의 구성 subunit 모두에 대하여 강한 분해능을 보였다. 내장 조효소의 경우는 반응 초기에 myosin heavy chain과 actin을 현저하게 분해시켰으며, 혈합육어인 멸치와 전어 조효소의 분해능이 백색육어인 농어와 도다리의 조효소보다 강한 것을 확인 할 수 있었다. 육의 조효소는 어종에 따라 서로 다른 분해 양상을 보였으며, 내장 조효소는 혈합육어와 백색육어의 효소 활성뿐만 아니라 효소의 분포상으로도 많은 차이가 있었다.

• 한국수산과학회지
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• 제32권4호
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• pp.458-465
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• 1999

Distribution of the proteolytic activities of crude pretense extracted from the viscera of ten kinds of fish was examined. Their proteolytic activities on proteinous substrates (azocasein, hemoglobin, and casein) from the viscera of anchovy, bastard flatfish, mackerel and red sea bream were higher than those of other fishes, and the crude pretenses were further fractoinated with acetone or ammonium sulfate. Optimum concentrations for pretenses fractionation were $0\~55\%$ for acetone and $30\~70\%$ for ammonium sulfate. The fractionated viscera pretense of mackerel showed the highest proteolytic activity among four kinds of fishes. Activities of cathepsin D- and pepsin-like enzymes at pH 3.0, cathepsin L-, B-, H- and G-like enzyme at pH 6,0, and Hypsin- and chymotrypsin- like enzymes (pH 8.0) were detected in the fractionated viscera pretense, whereas activities of cathepsin L- and chymoeypsin-like enzyme were observed in commercial pretenses. Proteolytic activities of Alcalase, Protamex, and Aroase AP-10 for azocasein were slightly higher than the fractionated viscera pretenses, but their amidolytic activities at pH 6.0 and 8.0 toward synthetic substrates were lower than counterpart. The fractionated pretenses from fish viscera would be utilized as commercial pretenses.

• 한국수산과학회지
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• 제6권1_2호
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• pp.1-19
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• 1973

Heavy metal concentrations have been determined in fishes and shellfishes sampled from October 1971 to April 1972 in Korea. In general, fish viscera, shellfish muscle and crustacean exoskeleton contained high concentrations of the metals. With regard to the regional variations of the metals, samples of the west coast of Korea contained relatively high concentrations of mercury, copper, cadmium and lead, but those of the south coast contained high levels of cadmium and lead. In particular, the concentrations of copper in the samples of the west coast were almost twice as much those of the other coasts. The concentrations of mercury in the samples, as a whole, ranged from 0.02 to 0.58 ppm with an average of 0.16 ppm. The concentrations of cadmium were higher in the fish viscera and shellfish than the fish muscle, ranging from less than 0.02 to 0.78 ppm with an average of 0.12 ppm in the fish and shellfish muscle samples. The lead concentrations were slightly high in the fish viscera. In the muscle and bone of fish and shellfish, the range was 0.06-4.84 ppm with an average of about 1 ppm. The concentrations of copper were very high in the viscera of fish and shellfish. The shellfish muscle contained almost four times as much copper as in the fish muscle, particularly cephalopods, i. e., squid and octopus, contained very high levels of copper, and oysters collected from Gunsan area on the west coast contained the highest levels of copper. The concentrations of copper ranged from 0.12 to 28.7 ppm with an average of 1.4 ppm in the fish muscle and of 5.9 ppm in the shellfish muscle.

• 한국식품과학회지
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• 제24권1호
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• pp.86-91
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• 1992

가다랑어 내장의 효율적 이용방법을 개발하기 위하여 내장을 자숙한 후 압착분리한 잔사에 Aspergillus oryzae를 이용하여 발효시킴과 동시에 이때 분리된 추출액을 원심분리하여 유분을 제거한 후 농축시켜 발효중인 잔사에 다시 첨가하는 개량식 발효어분 제조법(FFMA)을 개발하여 발효시 추출액을 첨가하지 않는 가등(加藤)법(FFMN) 및 비발효법인 재래법(NFM)과 비교 연구결과는 다음과 같다 발효어분에 있어서 일반성분의 변화는 3가지 방법간에는 큰 차이는 볼 수 없었고, 칼슘의 함량이 개량법에서 161.0 mg%로 가등(加藤)법과 재래법의 147.0 mg% 및 148.0 mg%보다 높았다. $Vitamin\;B_{1},\;B_{2}$ 및 C의 함량은 개량법에서 각각 1.76, 2.18 및 43.10 mg%로 가등(加藤)법의 1.373, 1.383 및 35.6 mg%, 재래법의 0.732, 0.669 및 14.20 mg%보다 각기 높게 나타났다. 과산화물가는 개량법에서 33.6으로 가등(加藤)법의 29.0보다 약간 높았으나 재래법의 126.0보다는 훨씬 낮았다. 개량식 발효어분에서 추출된 추출물과 가다랑어 내장을 그대로 추출된 추출물의 유리아미노산 함량은 총 유리아미노산에서는 발효 어분에서 3957 mg/100g로 내장의 경우보다 1.9배 정도 높았다. 총 유리필수아미노산의 경우도 발효어분에서 884 mg/100g로 내장의 경우보다 1.2배 정도 높았고, 총 유리비필수아미노산의 경우도 발효어분에서 2733 mg/100g로 내장의 경우보다 2.5배 높았다. 개별 유리아미노산의 경우 발효어분을 사용한 경우가 내장을 사용한 경우보다 필수아미노산의 경우 threonine, methionine, lysine 등의 함량이 높았고 비필수아미노산은 거의 모두가 월등히 높게 나타났다.

• Asian-Australasian Journal of Animal Sciences
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• 제11권2호
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• pp.196-200
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• 1998

The proximate composition of viscera of six fish species viz., Catla catla, Labeo, rohita Cirrhina mrigala, Hypophthalmichthys molitrix, Ctenopharyngodon idella and Cyprinus carpio under the influence of artificial feed $(T_1)$, broiler manure $(T_2)$, buffalo manure $(T_3)$, N:P:K (25:25:0 $T_4$) and control pond $(T_5)$ has been studied on final harvest after the end of experimental period of one year. The overall comparison of six fish species under five different treatments showed that Cyprinus carpio remained the best for visceral total protein contents. The maximum visceral protein content was recorded in fishes under $T_2$ except Cirrhina mrigala, while the minimum under $T_5$. The comparison of five treatments showed that maximum (6.69) percentage of fat in viscera of fish was recorded under $T_2$, closely followed by $T_4$ while minimum (4.89) under the effect of $T_5$. Among the six fish species under five treatments Cyprinus carpio showed maximum accumulation/deposition of total fats in viscera.

• Applied Biological Chemistry
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• 제40권4호
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• pp.318-322
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• 1997

오징어 내장유를 식용자원으로 이용하기 위한 일련의 연구로서 젤라틴, 물 및 정제 오징어 내장유로 형성된 유화물의 첨가에 의한 어육버거의 품질개선을 시도하였다. 과산화물값, 갈변도, 헌터색조, 젤리강도 및 관능검사의 결과로 미루어 보아, 고등어버거의 기능성 개선을 위한 유화물의 적절한 첨가량은 마쇄한 고등어육에 대하여 6%로 판단되었다. 채육한 고등어육에 대하여 6%에 해당하는 유화물을 첨가하여 제조한 고등어버거는 휘발성 염기질소, 총균수 및 히스타민함량이 각각 19.0 mg/100g, $6.2{\times}10^4CFU/g$ 및 50.7 mg/100g으로 그 함량이 낮아 식품위생적으로 안전하다고 판단되었다. 유화물 첨가 고등어버거의 포화산에 대한 고도불포화지방산의 비율은 1.13이었다. 색조, 젤리강도, 지방산조성 및 관능검사를 측정한 결과 유화물 첨가에 의해 고등어버거의 색조, 조직감 및 지질의 기능성을 일부 개선할 수 있었다.