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http://dx.doi.org/10.3746/jkfn.2016.45.4.569

Effects of Cooking Method and Pasteurization Treatment on Instant Thin Rice Porridge Added with Fruits and Vegetables  

Lee, Hwa-Jin (Department of Food Science and Biotechnology, CHA University)
Kim, Soojung (Cha Bio FNC Co.)
Bang, Eun (Department of Food Science and Biotechnology, CHA University)
Shin, Haehun (Division of Foodservice Industry, Baekseok Culture University)
Cho, Hyung-Yong (Department of Food Science and Biotechnology, CHA University)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.45, no.4, 2016 , pp. 569-576 More about this Journal
Abstract
This study researched the effects of cooking methods on phytochemical-enriched thin rice porridge (RP) of three colors (red, yellow, and green). Each of the RPs was prepared by three cooking methods and retorted through two-steps (step 1, at $80^{\circ}C$ for 15 min; step 2, at $82^{\circ}C$ for 25 min) for pasteurization. Cooking method (CM) 1 involved heating a mixture of all ingredients while CM 2 involved addition of apple/beet (AB, red), sweet-pumpkin/cabbage (PC, yellow) or vitamin/pear (green) while heating rice flour and glutinous rice flour. CM 3 involved mixing pre-cooked fruits and vegetables with cooked thin RP. The viscosity of RP prepared by CM 1 was lower than those of other RPs (P<0.05). The result of colorimetric a value show that red and green color of AB and VP prepared by CM 2 and CM 3 were most vivid. Contents of phytochemicals and antioxidants were higher when RP was prepared by CM 2 and CM 3 compared to CM 1. ${\Delta}E$ values of PC showed no significant difference before and after pasteurization, whereas AB and VP were significantly different (P<0.05). Antioxidant activity after retorting was not significantly different from those of un-retorted RPs. The results of color, phytochemical content, and antioxidant activity show that CM 2 or CM 3 were considerably better than CM 1, whereas cooking method had no effect after two-step retorting. Therefore, uncomplicated cooking method such as CM 1 or CM 2 are suited for commercial production of RPs.
Keywords
cooking method; retort; phytochemical; antioxidant activity; thin rice porridge;
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Times Cited By KSCI : 9  (Citation Analysis)
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