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Open AccessArticle

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

Department of Food Science and Technology, Chungnam National University, Daejeon 34134, Korea
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Polymers 2018, 10(11), 1210; https://doi.org/10.3390/polym10111210
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)
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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MDPI and ACS Style

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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