In the initial stage of storage, residual oxygen and ascorbic acid oxidase in fermented high hydrostatic pressure treated litchi juice could accelerate the aerobic degradation of ascorbic acid, andwhen the oxygenwas totally depleted, the anaerobic degradation of ascorbic acid occurred, whereas the degradation of fermented heat-treated litchi juice during storagemay mainly be anaerobic degradation because of the inactivation of ascorbic acid oxidase by heat. It had been reported that the aerobic degradation rate constants were 100–1000 times higher than the anaerobic degradation rate constants (Kabasakalis et al., 2000).