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Chemistry and Industry of Forest Products ›› 2019, Vol. 39 ›› Issue (3): 123-128.doi: 10.3969/j.issn.0253-2417.2019.03.017

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Preparation, Antibacterial Activity and Preservation of Lacquer Wax Composite Coating Preservative

Xingying XUE1,3,Hao ZHOU1,2,Changwei ZHANG1,2,Hongxia CHEN1,2,Chengzhang WANG1,3,*()   

  1. 1. Institute of Chemical Industry of Forest Products, CAF; National Engineering Lab. for Biomass Chemical Utilization; Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration; Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China
    2. Research Institute of Forestry New Technology, CAF, Beijing 100091, China
    3. Nanjing Zhongsen Biological Technology Co., Ltd., Nanjing 210042, China
  • Received:2018-12-21 Online:2019-06-28 Published:2019-06-26
  • Contact: Chengzhang WANG E-mail:wangczlhs@sina.com
  • Supported by:


Lacquer wax composite coating preservatives were made by adding different amounts of lacquer wax into 12% bleached shellac and used for the preservation of ponkan, and the antibacterial test of the preservatives was carried out as well. By investigating the stability of coating film, the optimized preparation conditions of lacquer wax composite coating wax were as follows:12.0% shellac, 1%-3% lacquer wax, stirring speed of 900 r/min, and dispersing time of 15 min. The results of antibacterial test showed that the antibacterial effects of the composite coating film on Staphylococcus aureus, Bacillus subtilis and Staphylococcus epidermidis were the best under the conditions of the amount of lacquer wax 2%, and the inhibitory rates were 24.3%, 26.5% and 25.2%, respectively, which were higher than those of the shellac coating(the inhibition rates increased by 40.5%, 62.6% and 62.6%, respectively). The composite coating film displayed obvious preservation effects on the ponkan and effectively prolonged the preservation period. After storage for 20 days at room temperature, the rot rate of the samples treated by composite coating was only 1.0%. When the treated ponkan were stored for 60 d, the rot rate of treated samples was 10.0%, compared with the blank control(38.4%) and shellac coating samples(18.6%), the rot rate was lower by 28.4 and 8.6 percent point, respectively(P < 0.01).

Key words: lacquer wax, shellac, antibacterial activity, preservation

CLC Number: