전복장의 열처리 공정의 최적화 및 저장성 평가에 관한 연구

The objective of this study was to optimize the thermal condition and determine the shelf life of heated Chunbok-jang product. The optimum thermal condition of heated Chunbok-jang product was determined by sensory test and heat penetration curve was obtained by Thermal Microprocessor. Sterilization time was 21-23 min until F₀ value reached 9 min, depending upon the number of abalone. As the solid content was reduced and the temperature of sterilization was increased, the thermal death time was decreased. The score of sensory test indicated that there was no significant difference in flavor of heated Chunbok-jang product made at different sterilization temperatures (110, 121.1, 125, and 130°C). Heated Chunbok-jang product, however, sterilized at 125°C showed the highest score in texture and taste values. Salinity and pH were not changed during seven month storage, but texture became firmer, and any microorganism had not been detected from the heated chunbok-jang product during these periods. As a result of the storage experiment, the shelf-life of heated Chunbok-jang product was 3-month at room temperature.