alexa Stability of Nano Encapsulated Rice Bran Derived Bioactive Pentapeptide inApple Juice
ISSN: 2157-7110

Journal of Food Processing & Technology
Open Access

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Research Article

Stability of Nano Encapsulated Rice Bran Derived Bioactive Pentapeptide inApple Juice

Fatima Alessa1, Navam Hettiarachchy1*, Srinivas J Rayaprolu1, Mourad Benamara2, Denise Greathouse3 and Surendra Singh4

1Department of Food Science, University of Arkansas, Fayetteville AR 72704, USA

2Department of Nanotechnology, University of Arkansas, Fayetteville AR 72701, USA

3Department of Chemistry, University of Arkansas, Fayetteville AR 72701, USA

4Physics Department, University of Arkansas, Fayetteville AR 72701, USA

*Corresponding Author:
Navam S Hettiarachchy
Department of Food Science & Institute of Food Engineering
University of Arkansas, 2650 N. Young Avenue
Fayetteville, AR 72704, USA
Tel: (479) 575-4779
Fax: (479) 575-6936
E-mail: [email protected]

Received date: April 10, 2014; Accepted date: August 23, 2014; Published date: August 29, 2014

Citation: Alessa F, Hettiarachchy N, Rayaprolu SJ, Benamara M, Greathouse D, et al. (2014) Stability of Nano Encapsulated Rice Bran Derived Bioactive Pentapeptide in Apple Juice. J Food Process Technol 5:356. doi:10.4172/2157-7110.1000356

Copyright: © 2014 Alessa F, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



Bioactive compounds can be derived from cereal grains and their components such as rice bran. These bioactive compounds have a potency to promote health. A pentapeptide with a sequence of amino acids Glu-Gln-Arg-Pro-Arg (EQRPR) prepared from heat stablized defatted rice bran (HDRB) has demonstrated multi-site anti-cancer properties in human cell lines. Fruit juces can be used as vehicles to incorporate the pentapeptide as a nutraceutical. To address the stability of the pentapeptide in the beverage and to prevent possible interactions with other components, nano-encapsulation with poly (lactic-co-glycolic acid) (PLGA) was used to deliver the bioactive ingredient. The nano-encapsulated pentapeptide (concentrations: 200/400/600 μg/mL) in the apple juice (model system) showed significant stability with no degradation for 2 months based on the high performance liquid chromatography analysis. The nanoparticles were uniform and stable with an effective diameter ranging between 82 and 83 nm and the results also indicated that there were no significant changes in the size over a storage period of 60 days. There was no microbial growth observed in the prepared apple juice samples. The un-encapsulated pentapeptide incorporated in the apple juice showed significant degradation after 7 days of storage. The PLGA nanoparticles showed a remarkable effect in protecting and stabilizing the bioactive compounds (pentapeptide) during the storage period at 4°C. The PLGA nanoparticles can thus be a promising carrier for the bioactive pentapeptide when incorporated into a juice medium.


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