시중에서 판매되는 국내외 14종의 쌀된장의 품질 특성을 분석하고자 아미노태 질소 함량, 암모니아태 질소 함량, 환원당 함량, Protease활성, Amylase활성 및 일반 세균수를 조사하였다. 그 결과, Protease 활성은 국내 제품인 KRD-1 (415.16 unit/g)과 KRD-2 (380.57 unit/g)의 값을 나타내었고, 일본제품은 510.14~695.10 unit/g으로 분석되었다. Amylase 경우, KRD-1 (46.52

Soybean-based food items have been developed as common fermented side dish sauces in South Korea, Japan, and China. Each of these countries, however, has its own fermentation method, including a microorganism-based fermentation process, the mixing of ingredients, the fermentation process, and the mixing of starch. The purpose of this study was to determine the quality characteristics of the commercial product. Fourteen kinds of rice soybean paste (Korea, 2 Japan, 12) were prepared, and their physiochemical properties (ammonium nitrogen, amino nitrogen, amylase, protease, and reducing-sugar contents) were analyzed. JRD-1 was found to contain the highest amount of amino-type nitrogen (426.45 mg%) while KRD-2 showed 316.10 mg%. For the protease activities, the following results were obtained: JRD-9, 695.10 unit/g JRD-11, 671.45 unit/g and JRD-5, 665.03 unit/g. As for the amylase activities, the results that were obtained were JRD-7, 53.65 unit/g JRD-8, 50.71 unit/g KRD-1, 46.52 unit/g JRD-1, 46.29 unit/g and JRD-11, 33.61 unit/g. This research provided information for the quality characteristics of commercial rice soybean paste.

• 김윤성
• 김지연
• 최혜선