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KMID : 1024420160200010053
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Food Engineering Progress
2016 Volume.20 No. 1 p.53 ~ p.58
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Physicochemical Characteristics and Antioxidant Activities of Cookies with Red Raspberry (Rubus crataegifolius)
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Yun Kyung-Mi
Chung Ha-Sook
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Abstract
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Red raspberry (Rubus crataegifolius) is a well-known fruit with excellent antioxidant, anti-inflammatory, anti-bacterial and anti-cancer resources containing bioactive phenolic acids, terpenoids, glucosinolates, and glycosides. The aim of our study is to investigate the effect of red raspberry cookies on quality characteristics and antioxidant activities. Cookies were prepared adding different concentrations of red raspberry powder (0, 5, 10, 20, 30, and 50% to the flour weight). The bulk density, pH, spread ratio, loss rate, leavening rate, color, hardness of dough, and cookies were investigated. As a result, the pH of the dough, leavening and loss rate, and L- and b-value of the cookies are significantly decreased with increasing levels of red raspberry powder (p <0.05). On the other hand, spread ratio, a-value, and brix of the cookies are significantly increased with increasing levels of red raspberry powder (p <0.05). Total phenol compounds and FRAP assay are significantly increased with increasing levels of red raspberry powder (p <0.05). Based on the overall observation, red raspberry cookies with 10-20% Rubus crataegifolius powder is recommended to take advantage of its functional properties with consumer acceptability.
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KEYWORD
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red raspberry, Rubus crataegifolius, functional cookies, quality characteristics, antioxidant activities
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