浸提处理对竹粉霉变性能的影响  

Mildew in bamboo flour treated with different solvents

作　　者：刘彬彬[1] 张绍勇[2] 周月英[1] 林家羽 孙芳利[1] 

机构地区：[1]浙江农林大学工程学院,浙江临安311300 [2]浙江农林大学林业与生物技术学院,浙江临安311300

出　　处：《浙江农林大学学报》2015年第1期11-17,共7页Journal of Zhejiang A&F University

基　　金：国家自然科学基金资助项目(31470587);浙江省木材加工产业创新团队资助项目(2012R10023-15);浙江省重大科技创新平台成果转化推广计划项目(2011E61009);浙江农林大学研究生科研创新基金资助项目(3122013240251)

摘　　要：为了研究竹材抽提物对竹粉霉变性能的影响,以冷水、热水、V(乙醇)∶V(乙醚)=1∶1,V(苯)∶V(乙醇)=1∶1,质量分数10 g·kg-1盐酸(HCl)和10 g·kg-1氢氧化钠(Na OH)溶液超声浸提处理后的竹粉为研究对象,测试了常见霉菌木霉Trichoderma viride,青霉Penicillium citrinum和黑曲霉Aspergillus niger等对其侵染能力。结果表明:用冷水、热水、醇/醚、苯/醇浸提后的竹粉试样对木霉、青霉和黑曲霉的防治效果均较低,与对照材相当;10 g·kg-1盐酸和10 g·kg-1氢氧化钠处理后竹材对以上3种霉菌的抵抗能力较强,其中10 g·kg-1盐酸处理竹粉防霉效果最好。通过红外光谱分析浸提后的竹粉,发现表征多糖、木质素、半纤维素等成分的特征峰发生了改变。通过液相色谱分析浸提液中的糖分,发现除醇/醚浸提液外其他浸提液中葡萄糖与木糖总含量相差不大,但防霉效果相差很大,说明除了可溶性糖以外,竹粉中的其他成分对霉菌的生长和繁殖也有一定影响。To study the influence of bamboo extracts on mold properties of bamboo, bamboo flour was extracted using ultrasound with cold water, hot water, benzene/ethanol, ethanol/ether, 10 g·kg-1 NaOH, and 10 g·kg-1 HCI. The extracted bamboo flour was then used to conduct mold resistance tests against Trichoderma viride, PeniciUium citrinum and Aspergillus niger. Results showed that bamboo flour treated with cold water, hot wa ter, benzene/ethanol, or ethanol/ether had similar resistances; whereas when treated with 10 g.kg-1 NaOH and especially 10 g kg-1 HCI, the results were much better than the controls, the mold did not grow. The FTIR analysis of extracted bamboo flour showed that the characteristic peaks of polysaccharides, lignin, and hemicel- lulose had changed. The HPLC analysis of the sugar in bamboo and in ethanol/ether extracts showed that glu- cose and xylose contents were similar, but the antifungal effects were different. Thus, in addition to soluble sugars, other bamboo powder ingredients probably had some influence on fungal growth and reproduction.

关 键 词：木材科学与技术 竹粉 超声处理 溶剂浸渍 霉变性能 

分 类 号：S782.33[农业科学—木材科学与技术]