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Effects of Hot-Air Heat Treatment on the Surface Color of Phyllostachys bambusoides Bamboo

  • LEE, Hyoung-Woo;LEE, Eun-Ju
    • Journal of the Korean Wood Science and Technology
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    • v.49 no.6
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    • pp.566-573
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    • 2021
  • We investigated color changes on the outer surfaces of Phyllostachys bambusoides bam-boo by heat treatment under three different temperatures (180℃, 200℃, and 220℃) for three different durations (60 min, 90 min, and 120 min). A method of predicting the bam-boo surface color change after heat treatment was developed to provide valuable information and increase the added value of domestic bamboo products. The three average color parameters L*, a*, and b* decreased, and the overall color changes increased as the severity factor increased. The values of L* × a* × b* were highly related to the severity factor, and the optimal duration time for the desired bamboo surface color with a certain heat-treatment temperature could be estimated.