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KMID : 1011620100260060887
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Korean Journal of Food and Cookey Science
2010 Volume.26 No. 6 p.887 ~ p.893
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Quality Characteristics of Tofu Prepared with Spirulina
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김효진:Kim Hyo-Jin
이지연:Lee Jee-Yeon/이승희:Lee Seung-Hee/김미리:Kim Mee-Ree/이근종:Lee Kun-Jong/김미리:Kim Mee-Ree
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Abstract
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In this study, the quality characteristics of tofu prepared with added spirulina(0, 0.25, 0.5, 0.75, and 1%). As the concentration of spirulina increased, tofu yield decreased and the pH and turbidity increased. The Hunter L(lightness) and a(redness) values of tofu decreased as the amount of spirulina increased. Phycocyanin(C-phycocyanin, allophycocyanin and phycoerythrin) contents increased according to the spirulina amount. Moreover the antioxidant activity of tofu increased as the concentration of spirulina increased(IC50 values for control was 150.7 mg/g; 1% spirulina, 82.5 mg/g). Textural properties(TPA) for hardness, gumminess, and chewiness were higher in spirulina with added tofu, compared to those of control. Regarding the overall acceptability of sensory properties, spirulina with 0.5% added tofu had the highest scores among all treatments. From these results, it was suggested that the optimal amount of added spirulina was 0.5% for the preparation of high quality tofu.
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KEYWORD
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tofu, spirulina, quality characteristics, sensory evaluation
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