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KMID : 1134820130420111886
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Journal of the Korean Society of Food Science and Nutrition
2013 Volume.42 No. 11 p.1886 ~ p.1891
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Development of Washing System for Improving Microbiological Quality of Blueberry after Postharvest
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Chun Ho-Hyun
Park Seok-Ho
Choi Seung-Ryul
Song Kyung-Bin
Park Seung-Jong
Lee Sun-Ho
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Abstract
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To inactivate the microorganisms on the surface of blueberries after harvest and to secure microbial safety, a bubble-aqueous chlorine dioxide washing system was developed. After treating the freshly prepared blueberries with the bubble-aqueous chlorine dioxide washing system, the changes in the microbial populations and quality of the blueberries were determined during storage 4±1°C. Microbiological data indicated that the populations of total aerobic bacteria, yeast and mold decreased by 1.4 and 1.3 log CFU/g at the treatment of 20 ppm aqueous chlorine dioxide with the system, respectively. There was no significant difference in color change and weight loss during storage among treatments. In addition, this washing system could handle approximately 60 kg of blueberry per hour, resulting in labor-saving. Therefore, these results clearly suggest that the bubble-aqueous chlorine dioxide washing system could be useful in improving the microbiological safety of fresh blueberries after harvest.
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KEYWORD
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blueberry, quality, washing system, microorganism
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