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ARS Home » Midwest Area » Peoria, Illinois » National Center for Agricultural Utilization Research » Plant Polymer Research » Research » Publications at this Location » Publication #315269

Research Project: NOVEL STARCH-BASED MATERIALS

Location: Plant Polymer Research

Title: Encapsulation of a model compound in pectin delays its release from a biobased polymeric material

Author
item Finkenstadt, Victoria

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 7/21/2015
Publication Date: 12/15/2015
Citation: Finkenstadt, V.L. 2015. Encapsulation of a model compound in pectin delays its release from a biobased polymeric material [abstract]. Pacifichem 2015 - The International Chemical Congress of Pacific Basin Societies, December 15-20, 2015, Honolulu, HI. ENVR 846.

Interpretive Summary:

Technical Abstract: A model compound was encapsulated in pectin and then extruded with thermoplastic starch to form a composite. The intended product was a food-contact tray made of biobased polymers infused with an anti-microbial agent; however, caffeine was used as the model compound in the preliminary work. The model compound was physically mixed with pectin or encapsulated through dissolution and freeze-drying. Three starches were evaluated. UV-VIS spectroscopy ('=274 nm) was utilized to measure the release of caffeine from the composite submerged in water. The release rate was delayed by at least one hour and had slower rates when encapsulated in pectin before extrusion.