Nutrition & Biosciences USA 4, Inc.

James Joshua Ohane

Yefim Brun

Lemuel Tong

Jorge Mok

Juan David Londono

Lucia Daniela Ionescu

Kyle Hyun Chang Kim

Christian Peter Lenges

Natnael Behabtu

Yougen Li

Rong Guan

Laurie A Howe

Nikita Iltchenko

Brian McCauley

Disclosed herein are compositions comprising insoluble alpha-glucan particles having a high degree of crystallinity and small particle size. For example, the alpha-glucan particles can have a degree of crystallinity of at least about 0.65, and/or an average size of less than a micron. At least 50% of the glycosidic linkages of the insoluble alpha-glucan in the disclosed particles are alpha-1,3 glycosidic linkages. Further disclosed are methods of producing insoluble alpha-glucan particles, as well as their use in various applications and products.

Highly crystalline alpha-1,3-glucan

Disclosed herein are coated articles comprising a substrate having at least one surface, and a coating composition disposed in a substantially continuous layer on at least one surface of the substrate, wherein the coating composition is present in an amount sufficient to increase the oxygen barrier property of the substrate, and the coating composition comprises a polysaccharide derivative. The polysaccharide derivative can comprise a poly alpha-1,3-glucan ether compound, such as a quaternary ammonium alpha-1,3-glucan ether. Also disclosed is packaging comprising the coated article.

Polysaccharide coatings with oxygen barrier properties

Compositions are disclosed herein comprising a graft copolymer that comprises: (i) a backbone comprising dextran that has been modified with about 1%-25% alpha-1,2 branches, and (ii) one or more alpha-1,3-glucan side chains comprising at least about 50% alpha-1,3 glycosidic linkages. Further disclosed are reactions for producing such graft copolymers, as well as their use in derivatives, films and various other applications.

Alpha-1,3-glucan graft copolymers

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West Chester, PA, United States of America

James Joshua Ohane