To estimate the oxidative stability of CBM, triplicate subsamples were individually packaged in sterile polyethylene bags for storage at room temperature (20–25°C) for 0, 0.5, 1, 2, 4, or 6 mo. At each of these predetermined time points, the appropriate samples were transferred to frozen storage (–80°C) for subsequent analysis. All samples were analyzed at the same time, within 1 mo of the 6-mo storage period. All samples were analyzed for the presence of peroxides and aldehydes using the Peroxysafe and Aldesafe MSA colorimetric assay kits [35].