Presented are compositions that can be used as antimicrobial coatings or protective coatings for agricultural (e.g., food) products. The compositions can comprise one or more saturated glycerides selected from monoglycerides and diglycerides; one or more surfactants; and one or more food-safe antimicrobials. The antimicrobial coatings or protective coatings can be used to prevent or delay food spoilage due to, for instance, infection by a foreign pathogen, moisture loss, or oxidation.