You call that enzyme as 'Lysozyme'.
Salivary amylase.
Alot
Salt prevents apples from browning because it inhibits the enzyme responsible for the oxidation process that causes the browning reaction. This enzyme, called polyphenol oxidase, requires oxygen to function, and salt helps block this reaction by reducing the oxygen available.
Apples change because oxidation, polyphenol oxidase (PPO) in the enzyme mix with air and turn it brown. There are ways to stop the process but just for a little.
Very probable salt stop the action of the enzyme poliphenol oxidase (this enzyme help the oxidation of apple internal surface).
I heard that Lincoln had a huge love of apple cobbler and anything that contained apples
Protease (pepsin) plus hydrochloric acid
Browning of the apples is caused by the oxidation of the enzyme phenol oxidase:phenol oxidase + oxygen---------------melanins
it can be found in fruits n veg like apples and carrots
Apples and some other fruits undergo a process called enzymatic browning when cut and allowed access to the air. The process is a bit complicated using the enzyme polyphenoloxidase which results in the brown pigmentation.
I looked it up at Answers.com (http://www.answers.com/tyrosinase?cat=health) Appears that TYROSINASE is contained in some fruits and vegetables (like apples, or potatoes; the entry in Answers.com also explains that this enzyme is responsible for the dark colour produced when cut raw food is exposed to air.