<![CDATA[Low dietary fiber intake remains a nutritional concern associated with an increased risk of constipation, colorectal cancer, and obesity. Developing analog rice from local food resources is a promising strategy to improve dietary fiber intake while supporting food diversification. This study aimed to evaluate the effects of tofu dregs flour substitution and carrageenan addition on the dietary fiber content and bulk density of corn-based analog rice and to identify the formulation with the highest dietary fiber content among the tested treatments. A 3×3 factorial randomized block design was applied using the ratio of corn flour to tofu dreg flour (C) (90:10, 80:20, 70:30) and carrageenan addition (K) (2%, 2.5%, and 3%) as the treatment factors. Dietary fiber content was analyzed with the enzymatic-gravimetric method, while bulk density was determined using the volumetric method. The results showed that tofu dregs flour substitution, carrageenan addition, and their interaction significantly affected soluble dietary fiber content (p<0.05), whereas no significant effect was observed on insoluble dietary fiber, total dietary fiber, and bulk density (p>0.05). The highest dietary fiber content (10.03%) was obtained from the formulation C3K3 (70% corn flour: 30% tofu dreg flour with 3% carrageenan), consisting of 2.20% soluble dietary fiber and 7.83% insoluble dietary fiber. Bulk density result ranged from 0.625 to 0.666 g/mL and didn’t differ significantly among treatments. C3K3 showed the highest total dietary fiber content among the tested formulations and potential for further development as a high-fiber analog rice product based on local food resources for future food diversification.]]>
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