Nitric oxide-releasing packaging membranes

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United States of America

PATENT NO 10494493
SERIAL NO

15595897

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Biodegradable composite membranes with antimicrobial properties consisting of nanocellulose fibrils, chitosan, and S-Nitroso-N-acetylpenicillamine (SNAP) were developed and tested for food packaging applications. Nitric oxide donor, SNAP was encapsulated into completely dispersed chitosan in 100 mL, 0.1N acetic acid and was thoroughly mixed with nanocellulose fibrils (CNF) to produce a composite membrane. The fabricated membranes had a uniform dispersion of chitosan and SNAP within the nanocellulose fibrils, which was confirmed through Scanning Electron Microscopy (SEM) micrographs and chemiluminescence nitric oxide analyzer. The membranes prepared without SNAP showed lower water vapor permeability than that of the membranes with SNAP. The addition of SNAP resulted in a decrease in the Young's modulus for both 2-layer and 3-layer membrane configurations. Antimicrobial property evaluation of SNAP incorporated membranes showed an effective zone of inhibition against bacterial strains of Enterococcus faecalis, Staphylococcus aureus, and Listeria monocytogenes and demonstrated its potential applications for food packaging.

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Patent Owner(s)

Patent OwnerAddress
UNIVERSITY OF GEORGIA RESEARCH FOUNDATION INC809 BOYD GRADUATE STUDIES RESEARCH CENTER 200 DW BROOKS DR ATHENS GA 30602

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Goudie, Marcus J Athens, US 1 0
Handa, Hitesh Athens, US 6 0
Mani, Sudhagar Watkinsville, US 2 10
Pant, Jitendra Athens, US 2 0
Sundaram, Jaya Watkinsville, US 2 2

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