Cockles(Tegillarca granosa) species that found throughout the Indo-Pacific region and this study was conducted in Yeosu from November 2015 through April 2016. Antioxidant activities (lipid peroxidation, DPPH radical scavenging, superoxide anion radical scavenging, reducing power, and iron chelating assays) were studied at different stages during the processing. The results showed that all cockle samples were related to antioxidant activities, they also possessed effective abilities as free radical scavengers, reducing agents, and iron chelators in most cases. Seasonal variations in antioxidant activities were also observed, characterized by high activity values in April, spring season, a period where phytoplankton is their primary food source which propagates considerably. Moreover, the harvested cockles exhibited the higher radical scavenging activities than marketed cockles by compared in the similar concentration and the activities increased with increasing concentration. The results also showed the useful in the assessment of the cockle potential for the development of functional foods, food ingredients or pharmaceuticals. Moreover, keeping the freshness of the cockle during processing chain is pivotal for keeping its antioxidant activities.

토탄과 같은 자연소재를 이용한 자연친화적인 연안 저질개선제 살포가 꼬막의 혈액학적 성상 몇 근육 글리코겐 함량에 미치는 영향에 대하여 알아보기 위하여 실내 실험을 실시하였다. 저질개선제를 단위면적(m2)당 0, 100, 300, 800g의 양을 살포 후 10일 동안 숙성시킨 꼬막을 수조에 수용하여 14일 동안 사육 실험한 결과 저질개선제를 단위면적(m2)당 800g 살포한 구에서 48시간 후에 1개체가 폐사한 것 이외에 심험종료까지 폐사가 일어나지 않아 자연소재로 구성된 저질개선제가 생물 자체에는 직접적인 독성을 나타내지 않는 것으로 판단된다. 꼬막 혈액의 전혈량, 헤마토크리트값, 헤모글로빈량에 있어서는 저질개선제 살포 농도별 큰 차이를 보이지 않았으나 혈액 글루코스량 및 근육 글리코겐량은 대조구와 비교하여 증가하는 경향이었다.