본 연구에서는 돌산 갓을 이용하여 저염 피클을 개발하기 위한 기초적인 연구로 저장기간 중 이화학적 및 관능 변화에 대해 분석하였다. 돌산 갓 피클을 −2℃에서 90일 동안 저장하였다. 염도는 1.63~1.85% 범위를 유지하였다. pH는 저장 0일째 약 4.5에서 저장 90일째 4.37로 감소하였다. 산도는 저장기간 중 60일째까지 점진적으로 증가하다가 이후 약 1.10%로 급격히 증가하였다. 색도의 L값은 잎에서 30일째까지 증가하였다가 이후 감소하였고, 줄기에서는 저장기간 동안 감소하였다. 저장기간 동안 a값은 증가하였고, 반면에, b값은 감소하여 갈변 현상이 진행된 것을 알 수 있었다. 유산균 수는 0일째 DMP잎에서 1.4×103 CFU/ml, DMP 줄기에서 5.6×103 CFU/ml로 나타났고 이후 점차 감소하였다. 관능검사 결과는 아삭거림이 30일째 감소하였고, 질긴 정도는 증가하였다. 신맛은 증가하였고, 짠맛은 감소하였다. 90일간 저장기간 동안에도 연부현상이 발생하지 않았다. 그래서 최적의 돌산 갓 피클은 30일째 적합하다고 판단되며 돌산 갓은 저염 피클제품으로서의 이용 가능성을 제시하고, 수입 위주의 피클을 대체함과 동시에 돌간 갓을 이용한 식품의 다양화에 기여하고자 분석을 실시하였다.
The principal objective of this fundamental research was to analyze the physicochemical changes and sensory properties of Dolsan leaf mustard pickles (DMP) for the development of low-salt pickles in order to contribute to the diversification of food. The DMPs were stored at −2℃ for 90 days, with salinity maintained at 1.63% to 1.85%. The pH was decreased during storage, and the acidity was gradually increased for up to 60 days of storage, after which it was increased rapidly to 1.10. The L-values (lightness) from the stems were decreased during storage. The a-values (greenness) were increased, while the b-values (yellowness) were decreased. It was shown that the DMP had a progressive browning phenomenon and the number of lactic acid bacteria gradually decreased. The sensory evaluation showed that crunchy textures were decreased and touch textures were increased at 30 days. Therefore, Dolsan leaf mustard is suitable as a material for low-salt pickles during storage for 90 days. The results of the analysis of the physicochemical and sensory properties indicate that the optimal storage for DMP was maintained for up to 30 days.
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