중심합성계획법을 이용한 반응표면분석에 따라 다시마 추출액으로 tea fungus 발효 특성을 모니터링 하였으며, 그 발효액의 관능적 검사를 하였다. 그 결과, 다시마 추출액을 이용한 산형 발효 음료 제조시 산도는 , pH는 , 당도는 및 겔 두께는 mm 등으로 처리구에 따라 큰 변화가 있었으며, 산의 함량이 가장 높은 처리구는 알코올 함량 2.00%, 당 함량 10.17% 및 감귤과즙 함량 1.99%이었고, 그때 예측된 산도는 0.94였다.

This study investigated the fermentation and quality characteristics of a fermented beverage, prepared by semi-anaerobic culture, using sea tangle extract. A central composit design using alcohol(0, 0.5, 1.0, 1.5, 2.0% [all v/v] ), sugar(0, 5, 10, 15, 20% [all w/v] ) and citrus juice(0, 1.0, 2.0, 3.0, 4.0 % [all v/v] ) was used to find the optimal mix for fermentation. Sensory characteristics, such as color, flavor, taste, sweetness, saltiness, sourness and overall quality, were measured using a response surface methodology computer program. The optimal conditions that produced the highest acidity of 0.94 were 2.0 % ethanol, 10.17 % sucrose and 1.99 % citrus juice. The optimal conditions that produced gel 20.13 nun in thickness were 1.98% alcohol, 10.94% sucrose and 1.62% citrus juice. The overall optimal conditions that satisfied all the sensory requirements for a sea tangle beverage were 1.0% alcohol, 10.0% sucrose and 4.05% citrus juice.

• 김미림
• 최미애
• 정지숙