Rice can be processed into various forms of pre-mixture to make breads and cookies. The tastes and functions of rice products can be enhanced by adding natural coloring materials. To promote rice consumption, various breads and donuts were made using a mixture of wheat and rice flour. By measuring the level of acceptance in terms of appearance and taste, standard recipes for proper mixing ratios were developed.
In this study, four colors of paprika powder (red, orange, yellow, and green) were used as sources of natural colors. While high quality paprika of good commercial value is desirable, low quality paprika can also be used for the purpose.
The first step is to develop standard recipes for rice flour foods (bread, donut, cookie, etc.) using paprika powder to come up with five different colors. Based on the results of a sensory test, the optimal rice flour proportions as substitute for wheat flour are 15-30% for bread, 20-60% for donut, and 20% for quick bread. In these mixtures, the final products (Fig. 1, Fig. 2, Fig. 3) proved to be excellent in taste and quality. The pre-mixture with the right combination of rice, wheat, and paprika powder can be prepared in advance of making the final products (Fig. 4). A suitable pre-mixture can be selected for each product, and other flavoring materials such as milk, butter, etc. can be added to make the breads and cookies more tasty and acceptable. When making a leavened bread at home without using natural color pre-mixture, follow the recipe in (Table 1).
The addition of rice flour as substitute for wheat flour may increase the cost of breads and cookies. However, the use of low-quality paprika can provide highly functional natural coloring and essential nutrients. More importantly, the fundamental benefit of this technology is the increase in rice consumption, and a decrease in Korea's wheat importation (Fig. 5).
Figure 1 Donut Made of Rice Flour
Figure 2 Cookie Made of Rice Flour
Figure 3 Donut Made of Multi-Purpose Pre-Mixture with Natural Coloring
Figure 4 Preparation of Multi-Purpose Pre-Mixture with Natural Color
Figure 5 Educating Consumers How to Make Rice Flour Products
Table 1 Recipe for Making Leavened Dough.
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