What is an "endosperm"?

The endosperm is a nutrient-rich tissue found within the seeds of flowering plants. It serves as a food reserve for the developing embryo, providing essential nutrients such as starches, proteins, and oils to support its growth and development. Endosperm tissue varies in composition depending on the plant species and can be starchy, oily, or proteinaceous. In many cereal grains like wheat, rice, and corn, the endosperm is the main component of the seed and is milled into flour for various culinary and industrial purposes. Additionally, in certain plants, such as coconut and coffee, the endosperm is consumed directly as a source of food or processed into products like coconut milk or coffee beans.