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http://dx.doi.org/10.3746/jkfn.2016.45.1.068

Functional Activities of Cacao Nibs and Couvertures according to Process Conditions  

Choi, Soo-Young (Department of Food and Nutrition.Research Institute of Human Ecology, Seoul National University)
Son, Yang-Ju (Department of Food and Nutrition.Research Institute of Human Ecology, Seoul National University)
Yoo, Kyung-Mi (Department of Food and Nutrition, SoongEui Women's College)
Lee, Ki-Won (WCU Biomodulation Major, Department of Agricultural Biotechnology, Seoul National University)
Hwang, In-Kyeong (Department of Food and Nutrition.Research Institute of Human Ecology, Seoul National University)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.45, no.1, 2016 , pp. 68-75 More about this Journal
Abstract
This study was conducted to provide information regarding changes in antioxidant activity in response to conching temperatures, conching times, and cacao mass content (CMC) in dark chocolate. The radical scavenging activities and functional components of cacao nibs were highest for raw cacao nib (R0) under all conditions. Moreover, antioxidant activities and functional compounds increased during roasting for 25 min. As the conching temperature increased, the radical scavenging activities and functional components increased. Quantitative analysis of major catechin-derived compounds by HPLC revealed that R0 had the highest value for other roasted cacao nibs in all aspects (P<0.05). The content of procyanidin B2, catechin, and epicatechin increased during roasting for 25 min. Finally, evaluation of couvertures revealed that procyanidin B1 content increased as conching time increased to 48 h, except for 70% CMC and conched at $60^{\circ}C$ (HH) and 70% CMC and conched at $50^{\circ}C$. Overall, HH48 contained the richest catechin-derived components.
Keywords
cacao nib; roasting; conching; chocolate; antioxidant activity;
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