Edible Films With Superpowers (Ginger-Carrot)
LEAVE heirloom tomatoes to the organic farmers and pork belly to the chefs. In the chemistry department at Rutgers University and other laboratories like it, the real action is in less trendy ingredients like oregano, crab shells and milk.
In a handful of food science labs around the country, people who talk about food in terms of microbes and polymers have been turning the natural pathogen fighters found in everyday food into edible films and powders.
If their work pans out, thin films woven with a thyme derivative that can kill E. coli could line bags of fresh spinach. The same material in powder form might be sprinkled on packages of chicken to stop salmonella.
Strawberries could be dipped in a soup made from egg proteins and shrimp shells. The resulting film — invisible, edible and, ideally, flavorless — would fight mold, kill pathogens and keep the fruit ripe longer.
For average eaters who are still scratching their heads over trans fat, food coated with invisible films that lure bad microorganisms to their death might as well be nuclear fusion. But food scientists believe the potential for using these everyday ingredients to make a safer food supply is huge.
“These natural films are really a very hot topic these days,” said Michael Chikindas, a food scientist working with the team at Rutgers. “The range of applications is endless, from very delicate foods to Army rations and space missions.”
