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Chemistry and Industry of Forest Products ›› 2018, Vol. 38 ›› Issue (1): 81-86.doi: 10.3969/j.issn.0253-2417.2018.01.012

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Antimidew and Antibacterial Characteristics of Larix Bio-oil

CHEN Chao, YU Yuxiang, HAN Liping, XING Jingchen, CHANG Jianmin   

  1. College of Material Science and Technology, Beijing Forestry University, Beijing 100083, China
  • Received:2017-07-10 Online:2018-02-25 Published:2018-02-28

Abstract: To evaluate the antimidew and antibacterial characteristics of bio-oil,the main volatile chemical components of Larix bio-oil were analyzed by GC-MS,and the filter paper and agar dilution methods were used to evaluate their antimidew and antibacterial effects on three common wood molds (Aspergillus niger,Penicillium citrinum and Trichoderma viride).The results showed that the Larix bio-oil contained a variety of antimicrobial components,such as phenols (34.59%),ketones (17.53%),aldehydes (11.31%),esters (6.66%),alcohols (6.55%),organic acids (6.04%),and etc.The maximum diameters of the bacteriostatic circles of Larix bio-oil for A.niger,P.citrinum and T.viride were 15.67,19.67 and 14.28 mm,respectively and the bacteriostatic circles were not found in the contrast samples indicated that the Larix bio-oil has good bacteriostatic effect.With the increase of bio-oil volume fraction,the inhibitory rates of 3 kinds of fungi increased,the minimum inhibitory concentration of three kinds of mould was 25% by agar dilution method.

Key words: Larix, bio-oil, chemical composition, bacteriostatic characteristics

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