Colloidal systems based on synthetic polymers have a history of use as delivery systems in pharmaceutical sector. In spite of intensive research and encouraging results on synthetic polymer based delivery systems; these cannot be used in food applications because of the stringent regulatory requirements in the food industry. With the current popularity of functional foods, where the emphasis is on fortifying food products with novel functional ingredients, the need for finding food-grade delivery systems have been felt more than ever before1. Hence, a great deal of effort has been put in identifying food-approved materials to generate novel colloidal structures which could be further used for encapsulation and delivery of nutrients and nutraceuticals. The objective of the current talk is to demonstrate illustrative examples based on our recently published research focussing on the use of food-grade materials for the development of novel micro/nano structures for encapsulation and delivery of functional ingredients including phytochemicals, vitamins, flavors, and colorants. Specifically, the talk will focus on the generation, morphological characterization (including advanced microscopy) and demonstrated applications of biopolymeric colloidal particles (prepared using protein-zein and resin-shellac)2-5; supramolecular nanocolloids (prepared by spontaneous interaction of phytochemicals)6-7; cellulose derivative based novel core-shell beads8; colloidal complexes from polymer-polyphenol interactions9; responsive emulsions10 and biopolymeric microcapsules11. References:1)  LWT Food Sci Tech., 2011 , 44:1958-1964.2)  Soft Matter, 2010 , 6:6192-6199.3)  Food Chem., 2012 , 133:423-429.4)  J. Agri. Food Chem., 2010 ,58:12497-12503.5)  Soft Matter, 2011 , 7, 8549-8555.6)  J. Colloid Interf. Sci., 2012 , 374:150-156.7)  Soft Matter, 2012 , 8:3515-3517.8)  Soft Matter, 2011 , 7:4294-4301.9)  ChemPhysChem, 2012,  13, 3777-3781.10)  Soft Matter, 2013 , DOI:10.1039/C3SM27900F.11)  Adv. Funct. Mater., 2013 , DOI: 10.1002/adfm.201300320.

Novel colloidal structures from food-grade materials for functional food applications

246th National Meeting (2013)

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