A walnut is the nut of any tree of the genus particularly the
Persian or English walnut
Walnuts are rounded, single-seeded stone fruits of the walnut tree
commonly used for the meat after fully ripening. Following full
ripening, the removal of the husk reveals the wrinkly walnut shell,
which is usually commercially found in two segments. During the
ripening process, the husk will become brittle and the shell hard.
The shell encloses the kernel or meat, which is usually made up of
two halves separated by a partition. The seed kernels commonly
available as shelled walnuts are enclosed in a brown seed coat
which contains antioxidants. The antioxidants protect the oil-rich
seed from atmospheric oxygen, thereby preventing.