Wikipedia
Pheophorbidase
Pheophorbidase (, phedase, PPD) is an enzyme with systematic name pheophorbide-a hydrolase. This enzyme catalyses the following chemical reaction
pheophorbide a + HO $\rightleftharpoons$ pyropheophorbide a + methanol + CO (overall reaction) (1a) pheophorbide a + HO $\rightleftharpoons$ C-132-carboxypyropheophorbide a + methanol (1b) C-132-carboxypyropheophorbide a $\rightleftharpoons$ pyropheophorbide a + CO (spontaneous)This enzyme participates in the chlorophyll degradation in higher plants and algae.