We examined the quality characteristics of pound cake with prepared Aronia melanocarpa powder, which included the physical characteristics, antioxidant activity and sensory evaluation in this study. Pound cakes were prepared with various ratios of Aronia powder (0, 5, 10, 15, 20%). No significant difference in loss rate or weight was found from increased Aronia powder concentration. The color of pound cake was darker and reddish with the addition of Aronia powder. Lightness (L) and yellowness (b) significantly decreased with the addition of Aronia powder, whereas redness (a) increased (p<0.05). the qualities of hardness, cohesiveness, gumminess and chewiness of the pound cake prepared with the addition of Aronia powder were significantly increased when compared to control(p<0.05), with exception of 20% addtion. Total phenolic contents and DPPH radical scavenging activity was significantly elevated by the addition of Aronia powder(p<0.05). The pound cake with 10% Aronia powder showed the strongest positive sensory properties with regard to taste and overall palatibility. These results suggest that the addition of 10 % Aronia to pound cake batter could well serve to improve the overall quality, texture and taste of the final product.

The quality characteristics, total phenolic content, anthocyanin content, and DPPH radical scavenging activity of rice nutritional bar with added powder of aronia byproducts were investigated in this study. The rice nutritional bar was prepared by adding aronia byproducts powder at concentrations of 0%, 2%, 4%, and 6%. The pH of the rice nutritional bar batter was lowered for the control and 2% aronia byproducts powder was added. The moisture content, baking loss rate, leavening rate and specific volume of the rice nutritional bar decreased with as the aronia byproducts powder content increased. In relation to measurements of the colors of the rice nutritional bar crust and crumbs, as the content of aronia byproducts powder increased, the L and b values decreased while the a value increased. From texture analysis, the hardness and chewiness increased according to the level of added aronia byproducts powder, but the springiness and cohesiveness decreased. The total phenolic content, anthocyanin content, and DPPH radical scavenging activity showed the highest values in the rice bar with 6% aronia byproducts powder added. According to a sensory evaluation, overall preference was highest for the rice bar with 4% added aronia byproducts powder, whereas the color and taste was rated higher for the rice bar added with 4% and 6% aronia byproducts powder.

본 연구에서는 아로니아 분말을 밀가루에 대하여 0%, 5%, 10%, 15%로 대체하여 머핀을 제조하고 품질 특성 및 항산화능을 조사하였다. 머핀의 일반성분 분석 결과 수분 함량은 대조군보다 첨가군에서 높게 나타났고, 조단백질, 조지방 및 회분 함량은 시료 간에 유의적인 차이가 없었다. 머핀의 비체적은 15% 첨가군이 유의적으로 낮게 나타났다. 머핀의 명도와 황색도는 아로니아 분말 첨가량이 증가함에 따라 감소한 반면, 적색도는 증가하였다. 조직감 측정결과, 경도는 대조군과 5% 첨가군이 낮게 나타났고, 아로니아 분말 첨가량이 증가할수록 증가하였다. 관능검사 결과, 머핀의 외관은 대조군이 가장 높은 점수로 평가되었고, 냄새는 대조군과 5%, 10% 첨가군 간에 차이가 없었으나 15% 첨가군이 가장 낮은 점수로 평가되었다. 맛과 조직감은 대조군과 첨가군 간에 유의적인 차이가 없었다. 전반적인 기호도는 대조군과 5%, 10% 첨가군 간에 유의적인 차이가 없었으나 15% 첨가군이 가장 낮은 점수로 평가되었다. 머핀의 총 폴리페놀 함량 및 총 플라보노이드 함량은 아로니아 분말 첨가량이 증가할수록 증가하는 경향을 보였고 DPPH radical 소거능, 금속 킬레이트 효과 및 환원력도 대조군보다 아로니아 분말 첨가군에서 높게 나타났으며, 아로니아 분말 첨가량이 증가할수록 대체로 증가하는 경향을 보였다. 머핀의 총 폴리페놀 함량, 총 플라보노이드 함량과 항산화능 간의 상관관계를 조사한 결과 매우 높은 양(+)의 상관성이 있음을 보여주었다. 이상의 결과를 종합하여 볼 때, 아로니아 분말을 10%까지 첨가하여 머핀을 제조한다면 대조군과 비교하여 관능적인 면에서는 차이가 없고 기능적인 면에서는 항산화활성이 향상되어 기능성 식품으로서의 가능성이 있다고 하겠다.