This is mostly caused by tires that are overinflated. When a tire is overinflated, the tire, in essence, bulges out more in the center. The tire then rides mostly on that bulge and that bulge wears faster than the sides of the tire. Keeping your tires properly inflated can help you to avoid center wear.
Lysozyme is abundant in a number of secretions, such as tears, saliva, human milk, and mucus. It is also present in cytoplasmic granules of the macrophages and the polymorphonuclear neutrophils (PMNs). Large amounts of lysozyme can be found in egg white.
Enzymatic Reaction (image will open in a new window) Lysozyme is an antimicrobial enzyme that is found in a wide variety of organisms including birds, mammals, plants, insects, and bacteria (Newman et al. 1974). The lysozyme of chicken egg white has been most extensively studied. History: Lysozyme from chicken egg was first described by Laschtschenko in 1909 (Laschtschenko 1909).