Journal of Oral Science Research

Journal of Oral Science Research ›› 2016, Vol. 32 ›› Issue (12): 1244-1247.DOI: 10.13701/j.cnki.kqyxyj.2016.12.005

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Preparation ofNano-scale Freshwater Pearl Powder

MAO Qiu-hua1, XU Pu1*, WANG Bin-ping1, LI Mu-yuan2, CHENG Ya-nang1, LIAO Jun1 , CHEN Lin1, LU Li-ying1, YU Dou1, WANG Xiu-li1.   

  1. 1. Department of Oral Implantology, Affiliated Haikou Hospital of Xiangya Medical School, Central South University Hainan Provincial Stomatology Center, Haikou 570208, China;
    2. Jingrun Pearl Biological Technology Co. LTD., Haikou 570208, China.
  • Received:2015-09-30 Online:2016-12-25 Published:2016-12-26

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Abstract: Objective: To prepare nano-scale pearl powder by mechanical ball milling method. Methods: The size of nano-scale freshwater pearl powder was analyzed by laser particle size analyzer (LPSA), scanning electron microscope (SEM) and transmission electron microscopy (TEM). The protein and amino acid content of freshwater pearl powder were analyzed and compared by Kjeldahl method referred to the determination of amino acids in foods (GB/T 5009.124-2003). Results: Micro-pearl powder can be ground into nano-scale by wet ball milling method using absolute ethanol as the medium, which did not change the protein and amino acid content significantly. Conclusion: Nano-scale pearl powder can be prepared by mechanical ball milling method by using absolute ethanol as the medium.

Key words: Nanometer pearl powder, Milling method , Sand grinding dispersion machine

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