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    赵博识, 于志明, 张扬, 漆楚生, 唐睿琳, 刘源松, 王皓炜, 韩祎昀. 可可球二孢的培养及其侵染橡胶木表面性能的研究[J]. 北京林业大学学报, 2020, 42(3): 160-167. DOI: 10.12171/j.1000-1522.20190382
    引用本文: 赵博识, 于志明, 张扬, 漆楚生, 唐睿琳, 刘源松, 王皓炜, 韩祎昀. 可可球二孢的培养及其侵染橡胶木表面性能的研究[J]. 北京林业大学学报, 2020, 42(3): 160-167. DOI: 10.12171/j.1000-1522.20190382
    Zhao Boshi, Yu Zhiming, Zhang Yang, Qi Chusheng, Tang Ruilin, Liu Yuansong, Wang Haowei, Han Yiyun. Growth of Lasiodiplodia theobromae and its dyeing effect on the surface properties of rubber wood[J]. Journal of Beijing Forestry University, 2020, 42(3): 160-167. DOI: 10.12171/j.1000-1522.20190382
    Citation: Zhao Boshi, Yu Zhiming, Zhang Yang, Qi Chusheng, Tang Ruilin, Liu Yuansong, Wang Haowei, Han Yiyun. Growth of Lasiodiplodia theobromae and its dyeing effect on the surface properties of rubber wood[J]. Journal of Beijing Forestry University, 2020, 42(3): 160-167. DOI: 10.12171/j.1000-1522.20190382

    可可球二孢的培养及其侵染橡胶木表面性能的研究

    Growth of Lasiodiplodia theobromae and its dyeing effect on the surface properties of rubber wood

    • 摘要:
      目的可可球二孢是导致橡胶木蓝变的主要菌种之一,对蓝变的研究大多以防治为主。本研究利用蓝变颜色的多样性将防治转化为诱导,以提高蓝变现象的利用价值。
      方法通过分析不同配比的察式培养基对可可球二孢菌落在培养基和橡胶木表面生长速度的影响,优选菌落适宜生长环境,并探究不同时间条件下菌落对橡胶木表面性能的影响。
      结果可可球二孢菌落的适宜生长环境为酵母膏9 g/L、葡萄糖20 g/L、pH值弱酸性、硫酸镁1.0 g/L、硫酸亚铁0.03 g/L、氯化钾0.2 g/L;随着时间的增加,橡胶木表面的染色面积比逐渐提高,颜色逐渐由红黄到蓝绿色系,整体颜色逐渐变暗,耐光色牢度逐渐提高,静态接触角提高了13.04%,动态接触角显著变大,表面粗糙度和耐磨性能逐渐降低。
      结论本研究制备出可可球二孢调色橡胶木,并利用不同时间梯度对橡胶木表面纹理和颜色进行调控,证明了生物方式加工木材的可行性,扩大了微生物在木材加工中的利用价值。

       

      Abstract:
      ObjectiveLasiodiplodia theobromae is one of the main fungi causing the blue stain of rubber wood, and most researches focused on prevention of blue stain. This paper uses the diversity of blue stain from prevention to induction, to improve the utilization value of blue phenomenon.
      MethodBy analyzing the effects of different proportions of czapek-dox medium on the growth rate of Lasiodiplodia theobromae on the culture medium and the surface of rubber wood, the optimum environment was optimized, and we investigated the dyeing effects of Lasiodiplodia theobromae on the surface properties of rubber wood.
      ResultThe results showed that optimum environment was yeast extract 9 g/L, glucose 20 g/L, pH weak acidity, MgSO4 1.0 g/L, FeSO4 0.03 g/L, KCl 0.2 g/L. With the increase of time, the dyeing area of surface color gradually increased, and the color changed from red and yellow to blue and green, and the light fastness gradually increased, and static state contact angle was improved by 13.04%, and the dynamic state contact angle inproved prominently, and surface roughness and wear resistance gradually decreased.
      ConclusionIn this study, Lasiodiplodia theobromae dyed rubber wood was prepared, and the surface texture and color of rubber wood were controlled by different time gradients, which verified the feasibility of biological wood processing and expanded the utilization value of microorganisms in wood processing.

       

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