US 12,133,536 B2
Food product coatings
Jooyeoun Jung, Lincoln, NE (US); John Simonsen, Corvallis, OR (US); and Yanyun Zhao, Beaverton, OR (US)
Assigned to Oregon State University, Corvallis, OR (US)
Filed by Oregon State University, Corvallis, OR (US)
Filed on Jul. 30, 2019, as Appl. No. 16/526,377.
Application 16/526,377 is a continuation of application No. PCT/US2018/016021, filed on Jan. 30, 2018.
Claims priority of provisional application 62/452,897, filed on Jan. 31, 2017.
Prior Publication US 2019/0364916 A1, Dec. 5, 2019
Int. Cl. A23B 7/16 (2006.01); B82Y 40/00 (2011.01); C08L 1/02 (2006.01); C08L 5/08 (2006.01)
CPC A23B 7/16 (2013.01) [C08L 1/02 (2013.01); C08L 5/08 (2013.01); B82Y 40/00 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A coating composition, consisting essentially of:
a cellulose nanomaterial in an amount ranging from 0.1% w/w wet basis to 1% w/w wet basis wherein (i) the cellulose nanomaterial comprises cellulose nanofibrils or a combination of cellulose nanofibrils and cellulose nanocrystals, and (ii) a portion of the cellulose nanomaterial comprises cellulose microfibrils, cellulose microcrystals, or a combination thereof; and
one or more emulsion droplets dispersed within a matrix comprising the cellulose nanomaterial, wherein the one or more emulsion droplets are formed by an emulsion system comprising oleic acid and a sucrose ester of a fatty acid component, wherein the oleic acid is present in an amount ranging from 0.1% w/w wet basis to 2% w/w wet basis and the sucrose ester of a fatty acid component is present in an amount ranging from 0.1% w/w wet basis to 2% w/w wet basis; and
water;
wherein
(i) the sucrose ester of a fatty acid component forms an outer hydrophilic region of the one or more emulsion droplets and the oleic acid forms an internal hydrophobic region of the one or more emulsion droplets;
(ii) the cellulose nanomaterial and the emulsion system are present at a ratio ranging from 1:1 to 1:8 (cellulose nanomaterial:emulsion system); and
(iii) the coating composition provides a coating that exhibits a water vapor permeability value ranging from 0.03 g ml/m2 d Pa to less than 0.15 g ml/m2 d Pa.