When Angela Cauley and Ian Blount founded Coalescence LLC nearly 10 years ago, they wanted to develop nutritious food products that would help feed the world's hungry. The married couple soon found they were in demand from food companies wanting them to blend or produce items for products sold in the United States. The Columbus-based company, which deals primarily in dry goods, earned contracts with Kellogg Co., Tyson Foods and other major food producers. It makes spices and flavorings for meatballs…