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Polymers 2018, 10(11), 1210;

Application of Adzuki Bean Starch in Antioxidant Films Containing Cocoa Nibs Extract

Department of Food Science and Technology, Chungnam National University, Daejeon 34134, Korea
Author to whom correspondence should be addressed.
Received: 2 October 2018 / Revised: 20 October 2018 / Accepted: 30 October 2018 / Published: 31 October 2018
(This article belongs to the Special Issue Recent Advances in Bioplastics)
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In this study, starch extracted from adzuki bean (ABS) was used as a biodegradable film source. In addition, to develop a new antioxidant film, various amounts of cocoa nibs extract (CNE, 0.3%, 0.7%, and 1%) were incorporated. With the addition of CNE, the elongation at break of the ABS films increased and the tensile strength decreased. The ABS films with CNE showed increased 2,2′-azino-bis-3-ethylbenzthiazoline-6-sulphonic acid (ABTS) and 1,1-diphenyl-2-picrylhydrazyl (DPPH) scavenging activities with increasing amounts of CNE. In particular, the ABTS and DPPH radical scavenging activities of the ABS films containing 1% CNE were 100% and 94.9%, respectively. Furthermore, decomposition of the films was observed after 28 days of biodegradation. Thus, ABS films containing CNE can be applied as a new active packaging material. View Full-Text
Keywords: adzuki bean; antioxidant activity; biodegradable films; cocoa nibs extract adzuki bean; antioxidant activity; biodegradable films; cocoa nibs extract

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Kim, S.; Baek, S.-K.; Go, E.; Song, K.B. Application of Adzuki Bean Starch in Antioxidant Films Containing Cocoa Nibs Extract. Polymers 2018, 10, 1210.

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