Postharvest fruits are still alive, fruit ripening and softening is a complicated development course of physiological and biochemical changes, and it is regulated by cell wall degrading enzymes.

• 摘要果实采后仍然是活的有机体，其后熟软化是一个复杂的生理生化变化过程，其中细胞壁降解酶起着重要的调控作用。