Broccoli spears were packaged using a semipermeable polymeric film and stored 96 hr at 20°C. CO 2 and O 2 concentrations within the packages equilibrated to about 9 and 3%, respectively. Relative to non‐packaged spears, ascorbic acid, chlorophyll and moisture retention were greater; and peroxidase activity was lower in packaged broccoli. No differences were found in total aerobic microbial population growth or Instron shear values between packaged and control spears.
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Barth et al. (1993) studied this question.
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