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KMID : 0380620210530020187
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Korean Journal of Food Science and Technology
2021 Volume.53 No. 2 p.187 ~ p.194
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Optimization of the preparation method of citron (Citrus junos Sieb.) beverage containing hibiscus using response surface methodology
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Lee Chang-Joo
Lee Woo-Jin
Park Jong-Seok
Kim Sung-Woo
Jung Sung-Keun
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Abstract
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This study aimed to optimize the preparation method of citron (Citrus junos Sieb.) beverages with hibiscus using response surface methodology (RSM). The experimental conditions were established using a central composite design with three independent variables as follows: ratios of citron (40~60%), citric acid (0.34~0.94%), and hibiscus (0.3~0.7%).
The results indicate that an increase in the citron ratio contributed to increased sweetness and as the concentration of citron and hibiscus increased, the brightness of the citron beverage decreased and the yellowness increased. The citron ratio showed a significant correlation with the ABTS radical scavenging capacity. Among the 15 experimental groups, 4 representative samples showing statistical significance were selected, and sensory tests were performed, in comparison with commercially available products. As a result of the sensory test, four beverages prepared with the selected recipes showed higher preference than commercial beverages, and optimal recipe conditions were 40% citron, 0.34% citric acid, and 0.5% hibiscus7
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KEYWORD
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hibiscus, citron juice, response surface method, sensory test, optimization
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