• 한국식품위생안전성학회지
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• 제3권4호
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• pp.217-223
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• 1988

For the Effective utilization of the fish resources in coastal regions, investigations on preparation of powdered dried arkshell instant soup., quality stability of the products during storage and utilization as a food material were carried out with arkshell, Anadara broughtonii. Three kinds of powdered instant soup were prespared as 0% table salt(A), 5% table salt (B), 15% table salt(C) and packed with vacuum in laminated film bag. (polyester/nylon: 85${mu}ell$/15${mu}ell$, 18$\times$27cm) Their processing conditions and quality stability during storage at room temperature for 90 days were examined. Powdered instant soup was made by washing raw arkshell to remove visceral, clay, sand and blood, hot air drying(60$\pm$1$^{\circ}C$, 20 hrs) after draining and pulverizing dried arkshell to 35 mesh. Powdered instant soup was made by adding 2% sugar 0% table salt (5% and 15% table salt), 10.5% monosodium glutamate, 0.3% black pepper and 0.3% garlic powder to the pulverized dried arkshell. The condition of moisture and water activity of the products were 5.9-6.9% and 0.42-0.43, respectively. The moisture content s , water activity and pH of the products were showed little change and volatile basic nitrogen of them increased slightly during storage. Thiobarbituric acid value increased up to 60 days of storage and then decreased slightly. In solubility, powdered instant soup were showed no remarkable difference comparing with goods on the market. The color value of th products were showed little change during storage, In sensory evaluation, product B were scored slightly higher, in most cased, in flaver, color. taste and overall acceptability comparing with product A or product C during storage. Judiging form the sensory evaluation, powdered instant soup of 5% table salt (B) were the most desirable, and the quality of the products was stable for 90 days at 20$\pm$3$^{\circ}C$.

• 한국수산과학회지
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• 제53권2호
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• pp.244-250
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• 2020

Microplastic pollution in the marine ecosystem has been emerged as a global issue. In this study, we investigated the abundance of microplastics from clam Meretrix lusoria, blood arkshell Scapharca broughtonii, and warty sea squirt Styela clava obtained from a local market in Busan, Korea. The marine organisms were digested in 10% KOH, and were incubated at 40℃ and 150 rpm, for 7 days. The digest was filtered through standard sieve (5 mm, 1 mm, 300 ㎛, and 100 ㎛), and mciroplastics were identified using a light microscope and microFT-IR. The abundance of microplastics of clam, blood arkshell, warty sea squirt was 0.08 items/g, 0.05 items/g, and 0.12 items/g, respectively. The predominant microplastic size was in the range of 100-300 ㎛, occupying 48%, and the predominant type was fiber. The composition of microplastics was mostly rayon, semi-synthetic cellulosic material and polyester, which are main component of fabric and textile. We strongly believe that this preliminary work may provide useful information for the establishment of the standardized analysis method of microplastics ingested by marine organisms.

• 한국어병학회지
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• 제26권3호
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• pp.193-206
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• 2013

피조개, Scapharca broughtonii는 돌조개 과에 속하는 이매패류로 한국과 일본에서 매우 중요한 수산식품이며, 주로 국내 남해안 지역에서 양식되고 있다. 그러나 피조개 생산량은 여름철 대량폐사로 인하여 지난 10년 동안 급격하게 감소하였다. 대량폐사로 인한 경제적인 손실을 해결하기 위하여 피조개의 생리에 영향을 미치는 다양한 환경 인자에 대한 연구가 집중적으로 수행되어 왔으나 미생물학적인 연구는 미진한 실정이다. 본 연구에서는 피조개의 주요 혈액 성분인 헤모글로빈이 미생물의 병원성인자에 의하여 피해를 받아 발생하는 용혈현상과 피조개의 폐사와의 연관성을 규명하기 위하여 피조개 양식장의 용혈활성 미생물을 중심으로 분석하였다. 여름철 고수온기인 6월부터 9월까지 강진만과 진해만 피조개 양식장의 해저퇴적물과 피조개 체내에서 분리한 약 4,200여점의 배양가능 용혈성 미생물의 다양성 및 지역 특이적인 미생물을 분석하였다. 6월에 25속 118종, 7월에 24 속 89종, 8월에 30속 109종, 그리고 39속 141종의 미생물을 분리하였으며, 16S rDNA 정보를 통하여 지역별 미생물 다양성을 분석한 결과 폐사빈발 지역에서만 특이적으로 존재하는 140종의 미생물을 분리하였다. 이러한 지역 특이적 미생물 균총 연구는 피조개 대량폐사 원인 규명의 기초자료로 활용될 수 있을 것으로 사료되며 나아가 다양한 패류의 폐사연구에도 기여할 것으로 기대된다.