• Journal of Ecology and Environment
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• 제40권3호
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• pp.136-143
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• 2016

Background: Mussels are stubborn organisms attached to solid substrata by means of byssus threads. The abundance of marine mussel Mytilus edulis in marine facilities like power stations was reason to select among fouling animals. Methods: Mortality patterns as well as physiological behavior (oxygen consumption, foot activity, and byssus thread production) of two different size groups (14- and 25-mm shell length) of M. edulis were studied at different hydrogen peroxide concentrations ($1-4mg\;l^{-1}$). Results: Studied mussels showed progressive reduction in physiological activities as the hydrogen peroxide concentration increased. Mussel mortality was tested in 30 days exposure, and 14 mm mussels reached the highest percentage of 90% while 25 mm mussels reached 81%. Produced data was echoed by Chick-Watson model extracted equation. Conclusions: This study points that, while it could affect the mussel mortality moderately in its low concentrations, hydrogen peroxide has a strong influence on mussels' physiological activities related to colonization. Therefore, hydrogen peroxide can be an alternative for preventing mussel colonization on facilities of marine environment.

• Environmental Engineering Research
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• 제22권1호
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• pp.108-115
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• 2017

Chlorination has been the most common antifouling method, but alternatives are under searching. In this article, we report how the hydrogen peroxide could enhance the effect of chlorination to prevent fouling by inhibiting larvae settlement and abatement of mussel colonization or by extinct of them; through marine mussel Mytilus edulis. The addition of hydrogen peroxide shows synergic effect on the veliger larvae (up to 19 folds) and effectively reduces required time of mussel mortality by 8-22%. For resolution of micro- and macro-fouling caused by the marine mussel, as well as diminishing of time and conventional chlorine dose could be important factor in favour of environment and economics.

• Journal of Biosystems Engineering
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• 제32권2호
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• pp.115-120
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• 2007

The adhesive performance of marine mussel extract was compared with that of the commercial medical adhesives for fastening biotissue (SIS) bandages. Joints bonded with mussel extract showed stronger strength than those bonded with other commercial adhesives. The bonding strength was much improved when the moisture in the Joint was reduced using superporous hydrogel regardless of curing time under humid condition ($37^{\circ}C$ and 91% relative humidity). Water inflow into the SIS joint seemed to degrade the performance of mussel extracts adhesive especially for the joints of short period of curing time. The strength of SIS joints coated with surgical sealant was well maintained after being exposed to water inflow.

• 한국패류학회지
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• 제25권3호
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• pp.179-187
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• 2009

The effects of water temperature and salinity on embryonic development and spat survival of mussel Musculista senhousia were investigated. Embryos were incubated in water ranging from 0 to $35^{\circ}C$ and with salinity from 5‰ to 40‰. Mussel spat were tested in water from 0 to $40^{\circ}C$ and with salinity from 0‰ to 100‰. The optimal conditions for mussel embryos were $20-25^{\circ}C$ and salinity from 25‰ to 35‰, based on Within this temperature range, higher temperatures correponded to a shorter duration of the embryonic period. Optimisation of mussel spat survival was at $25-35^{\circ}C$ and salinity from 30‰ to 40‰; both values are higher than those for embryo, which hinted M. senhousia embryos are more vulnerable than spat. Temperatures below $15^{\circ}C$ were lethal for embryos, making temperature a feasible method with which to control the large population of M. senhousia in ark-shell farm during its spawning period.

• 한국패류학회지
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• 제20권1호
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• pp.45-53
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• 2004

This study have conducted to calibrate the productivities on the mussel (Mytilus galloprovincialis) cultures in Jinhae Bay. Annual water temperature, salinity and dissolved oxygen have varied to 7.2-$25.9^{\circ}C$, 32.9-34.0 psu, 7.9-8.7 mg/l, respectively. In April, the smallest size of spat, 3.3 mm in shell length, have recruited, and 82.5 mm have recorded to the maximum. In summer, variations of growing up between individuals showed both shell length and weights at same cohort. Annual production at 2 m, 5 m, 8 m depth calculated to 10.91, 10.85 and 9.19 gWWt/ind./yr, respectively. Mussel cultivated in the upper part of the water column (two meter depth) were significantly longer and heavier than those in lower part (eight meter depth). After the recruitment, monthly production showed gradual increment at all positions during summer. As results, annual production of mussel cultivated seemed to be controlled by conditions of growing up in summer. Based on the productivities calculated to this study, the total annual production of the mussel cultivated in Jinhae Bay have estimated about 196 ton/ha/yr.

• 수산해양교육연구
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• 제23권4호
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• pp.709-722
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• 2011

This study was investigated to obtain basic data which can be applied to processing of retort pouched seasoned sea mussel. Shell was washed and steamed before shucking. Sea mussel meat was seasoned in boiled and mixed seasoning sauce(soy sauce 23%, monosodiun glutamate 2%, sorbitol 2%, sesame oil 1%, vinegar 2%, starch syrup 15%, water 55%) for 30 min. The seasoned sea mussel was vacuum packed in plastic film bag and sterilized for various Fo values(Fo 7~13 min.) in a hot water circulation system retort at $121^{\circ}C$. The chemical composition such as pH, VBN, amino-N, total amino acid, free amino acid, color value (L, a, b), texture profile, TBA value, mineral, sensory evaluation and viable cells count of the retort pouched seasoned sea mussels sterilized with various conditions(Fo 7~13 min.) were measured. The same experimental items were also measured during storage. There was no remarkable difference between sterilization conditions and sensual characteristics. The results showed that the product sterilized at Fo 7 min. was the most desirable because this condition is most economical.

• 생명과학회지
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• 제9권3호
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• pp.282-288
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• 1999

This study was designed as a part of efforts to investigate the biochemical pollutant markers for diagnosis of marine pollutions by changes in cholinesterase activity of the mussel (Mytilus coruscus) in South Sea of Korea. Acetylcholinesterase (AChE) activities in muscle of cultured mussels in South Sea were remarkably lower (20∼41%, respectively) than those of wild mussel in Pohang(control) of East Sea. Acetylcholine (Ach) activities in muscle of cultured mussels in South Sea were remarkably lower (15∼30%, respectively) than those of wild mussel in Pohang of East Sea. Monoamineoxidase (MAO-B) activities in muscle of cultured mussels in South Sea were significantly 2∼19% higher than those of wild mussel in Pohang of East Sea. It suggests that AChE, ACh and MAO-B activities in muscle of cultured mussels of South Sea may be used as the most effective mean in a biochemical markers for early warning of environmental damages caused by organophosphorus pesticides.

• 한국해양환경ㆍ에너지학회지
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• 제10권1호
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• pp.21-28
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• 2007

진주담치와 넙치를 치사농도 이하의 납과 카드뮴을 첨가한 배양수조에 2주간 노출시킨 후 해당 중금속의 생물농축을 조사하였다. 노출 후 생물체내 중금속 농도는 배양액의 중금속 농도에 비례하여 증가하였으며, 진주담치에서 그 경향이 뚜렷하였다. 체내에 농축되어진 중금속 농도는 모두 고농도의 배양액에 노출시킨 시료에서 최대치를 기록하였으며, 납 5.0 mg/L 배양액에서 넙치 및 담치의 납 최대농도는 각각 $170({\pm}10)\;{\mu}g/g$, $5,260({\pm}70)\;{\mu}g/g$, 카드뮴 1.0 mg/L 배양액에서 넙치 및 담치의 카드뮴 최대농도는 각각 $72({\pm}4)\;{\mu}g/g$, $1,040({\pm}40)\;{\mu}g/g$으로 두 금속의 생물축적이 배양액 농도와 직접 관련이 있음을 나타냈다. 납과 카드뮴의 생물농축비(배양액 노출농도에 대한 분석시료의 농도비)는 두 중금속 모두 배양액의 농도에 반비례하여 낮은 노출농도에서 최대치를 보였고, 특히 진주담치에서 납의 생물농축비는 배양액 농도 0.01 mg/L에서 무려 12,100(${\pm}1,400$)을 보여주었다. 이러한 사실은 두 실험생물이 중금속 농도가 낮은 용액에 노출되었을 때 더 빨리 중금속을 섭취한다는 사실을 뒷받침한다. 한편, 진주담치의 중금속 축적을 기관별로 비교, 분석한 결과 납은 내장낭보다 아가미에서 다소 높은 반면 카드뮴은 내장낭에서 더 높은 농축특성을 보였다.

• 대한화학회지
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• 제4권1호
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• pp.85-87
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• 1957

We have studied on the effect of hydrochloric acid on the hydrolysis of dried cuttlefish, sardine, shrimp, sea mussel and undaria taking various concentration of acid, heating at various periods at constant temperatures and under atmospheric pressure following results were obtained. 1. The addition of HCl increases hydrolysis ratio of marine products rapidly, having maximum point of its ratio at 30% of dried cuttlefish and shrimp, at 25% of sea mussel and undaria, at 15% of sardine. 2. Hydrolysis ratios of cuttlefish and shirmp, sea mussel and undaria, and sardine reach maximum values at 30% of HCl, 25% of HCl and 15% of HCl, respectively.

• 한국환경성돌연변이발암원학회지
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• 제26권1호
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• pp.25-29
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• 2006

흥합 (Mytilus coruscus) 추출물 RM 60을 사용하여 E. coli D31을 대상으로 항균활성 펩타이드를 분리 정제하였다. 정제한 펩타이드는 MALDI-TOF Mass spectrometry를 사용하여 분자량을 측정한 결과, 1464.92 Da로 나타났으며 Edman 분해법을 이용한 peptide sequencer를 사용하여 일차구조를 분석 중에 있다.