인지기능 활성을 가진 생약복합물을 선정하여 최적조성물을 조제한 다음 생약복합물의 첨가비율을 달리하여(0%,5%, 10%, 15%, 20%) 제조한 두유 젤리의 품질에 미치는 영향을 조사하였다. 인지기능 생약복합물을 일정비율로 첨가하여 제조한 두유 젤리 제품의 수분활성도는 대조군에 비 하여 생약복합물 첨가군이 더 증가하였으며 생약복합물이 많을수록 증가하는 경향이었다. pH는 대조군에 비해 생약복합물 첨가한 젤리에서와 생약복합물의 첨가량에 증가함에 따라 약간 감소하는 경향이었다. 당도는 대조군에 비하여 생약복합물을 첨가한 젤리에서 모두 높게 나타났다. 색도는 두유젤리에 대한 생약복합물의 첨가량이 증가할수록 젤리의 L값은 낮아졌으나 적색도(a)값과 황색도(b)값은 높아졌다. 텍스쳐 측정 결과 경도, 검성, 씹힘성은 생약복합물 15%,20% 첨가군에서 대조군에 비해 유의적으로 증가하였으나 부서짐성, 탄력성, 응집성, 복원성은 전군에서 거의 차이를 보이지 않았다. 또한 관능평가 결과 전반적으로 유의적인 차이가 없는 것으로 나타나 첨가량 20% 범위 이내에서는 인지기능 활성을 고려하여 첨가량을 조절할 수 있는 것으로 나타났다.
In this study, soy milk jellys with medicinal herbs (MH) composites showing cognitive effects were prepared and their characteristics were examined. Eight kinds of medicinal herbs were extracted with hot water and added to soy milk based on their contents. Medicinal herbs showed cognitive effects, namely promoting acetylcholinesterase (AChE) inhibition. In the preparation of soy milk jellys containing MH extracts of various contents (0%, 5%, 10%, 15% and 20%), pH of all groups significantly (p<0.05) decreased with increasing MH extracts compared to the control group. The brix of the soy milk jellys was the highest in the 5% content of MH extracts among all groups. The "a" and "b" values of soy milk jellys increased with the content of MH extracts, while the "L" value decreased adding to the content of MH extracts compared to the control. The hardness, gumminess, and chewiness of soy milk jellys were improved the most by the addition of 15~20% MH extracts, while the fracturability, adhesiveness, springiness, cohesiveness, and resilience of soy milk jelly was not significantly different (p<0.05) among all groups. Through a sensory evaluation, it was revealed that the taste, texture, overall preference, flavor, and sweetness of soy milk jellys was not significantly different (p<0.05) among all groups. Therefore, since the addition of 20% MH extracts did not significantly alter the sensory evaluation, it can usually be adjusted to make soy milk jellys with cognitive effects.