Effect of Purification Methods on Micro/Nano Particles Leaching from Eucalyptus granlla Cell for Medicine

Wood extractives could be suited directly for biomedicine. Eucalyptus granlla has become one of the most important plantation resources in south China. Therefore, the fresh Eucalyptus granlla shavings were extracteded under the direct current electric field, alternating electric field, electromagnetic field and soxhlet extracting, and the extractives were analyzed by ZETA and SIZER to find out the leaching rule of nano particles from Eucalyptus granlla wood. The results were following as: (1) The external electric and electromagnetic field-extracting approach could decrease the grouping number of leached particles from Eucalyptus granlla wood. And the most significant apoptosis effect on leached particles was induced under the alternating electric field. (2) The extraction mass arrived at the maximum value when extracting time is about 5 h in the soxhletic-extracting approach, it is the best effect of electromagnetic field among the four extracting approaches.