Location: Functional Foods Research Unit
Project Number: 5010-41000-152-00
Start Date: Dec 13, 2010
End Date: May 03, 2015
Steam jet cooking technology will be investigated as an efficient method for producing amylose helical inclusion complexes with functional properties relevant to a wide range of food and industrial applications. Whereas many types of such complexes have been prepared in small quantities under laboratory conditions, this research will focus on developing thermomechanical production methods using only starch, water, and specific ligands of interest to form complexes that can be used for applications currently employing covalently modified starches, expensive natural gums, and other materials. Preliminary experiments with high amylose starch and sodium palmitate have demonstrated that amylose inclusion complexes could be readily formed in high yields in jet cooked starch dispersions. A series of anionic, cationic, and uncharged ligands will be investigated in terms of ability to form complexes thermomechanically with various commodity starches such as normal dent, high amylose, and waxy cornstarch, and their morphological, chemical, and physical properties will be determined. Specific ligands will be chosen for particular end-use applications, including surfactants, lubricants, papermaking retention aids, flocculating agents, and controlled release agents for food and non-food products. The complexes possessing crystalline spherulite morphology will be investigated as solid supports for the growth of microbes in liquid culture and as a dispersal medium for microbial products. For each application, the best ligands will be selected from available candidates, sufficient quantities of amylose inclusion complexes will be prepared using steam jet cooking methods, and laboratory tests will be performed to determine the performance of the complexes for the specific end use. As the efficacy of these products are successfully demonstrated, prototype products will be prepared and collaboration with the private sector will be sought for transfer of the technology to the private sector for field testing and market development.