Initially, fresh-cut spinach contained AA as a predominant form of vitamin C. However, a de- crease in AA and an accumulation of DHA were observed during storage. The increase in DHA was more prominent in MAP and resulted in a higher vitamin C value of spinach in MAP than air. An increase in the pH of spinach stored in MAP was also observed (Gil et al., 1999). In contrast, fresh-cut products of Swiss chard con- tained only DHA, and vitamin C was better pre- served in air than MAP (Gil et al., 1998).