A ecosystem model was applied for understanding of circulation process of state variables in marine ecosystem. A mass balance was conducted by calculating the physical process. The sensitivity analysis was conducted to know which coefficient is the most effective factor to the state variables in the model. The results of the mass balance indicate that the primary production was 58.6 ton C/day in the case of mass flux. DIN and DIP in nutrient ingestion of phytoplankton were each 7.9 ton N/day, 1.1 ton P/day. POC and DOC in mineralization of organic matter were each 10.8 ton C/day, 40.6 ton C/day. The results of sensitivity analysis showed that the maximum growth rate of phytoplankton was the most important factor for overall state variables. In the case of nutrients, Half saturation constant of DIN, and mineralization rate of DOM for COD were important factor.

본 연구에서는 경제적 측면에서 일반 소금보다 우수한 해양심층수 소금을 이용하여 간장을 제조한 후 발효기간에 따른 품질특성을 조사하였다. pH와 완충능은 발효가 진행됨에 따라 점차 감소하였다. 순추출물의 함량은 점차 증가하여 발효 120일째에 7.5%로 나타났다. 간장의 갈색화는 발효 30일 째에 대부분의 갈색화가 진행되었다. 총질소와 아미노태 질소는 발효가 진행됨에 따라 점차 증가하여 발효 12일째 각각 1.4%와 0.75%를 나타내었다. 유리아