Abstract
ABSTRACT To maintain high quality and microbiological safety of paprika during storage for export, paprika samples after harvest were treated with 75 ppmv chlorine dioxide (ClO 2 ) gas and stored at 8°C, which is the optimal storage temperature, for 30 days. ClO 2 gas treatment reduced initial populations of total aerobic bacteria in samples by 1.62 log CFU/g as well as yeast and molds by 1.45 log CFU/g compared to those of the control. During storage, weight loss of all samples increased, and samples treated with ClO 2 gas showed lower weight loss than the control. In addition, total soluble solid and total phenolic contents were not significantly different between the samples during storage, whereas vitamin C content and hardness of all samples decreased. Hunter L, a, and b values of paprika samples were not significantly different between the treatments. These results suggest that ClO 2 gas treatment can be effective for improving microbiological safety and maintaining high quality of paprika during storage.
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