Epogee, the developer of a fat replacement, has raised $8.3 million in its first round of venture funding. The Indianapolis-based firm splits rapeseed oil into glycerin and fatty acids. It then revamps the molecule by inserting what it calls a propoxyl link between the glycerol backbone and the fatty-acid chains. Epogee claims the new structure prevents digestive enzymes from acting on the molecule, reducing calories absorbed from fat by 92%. The company will use the funds to expand manufacturing and technical support to customers.