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《Journal of Northeast Forestry University》 2010-11
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Composition of Lac in Panzhihua Region

Zhang Wenwen(Research Institute of Resource Insects,Chinese Academy of Forestry,Kunming 650224,P.R.China) ;Bi Xingdan,Tang Yong,Li Ji(the State-owned Forest Farm of Panzhihua,Sichuan Province) ;Zhang Hong,Zheng Hua,Gan Jin(Research Institute of Resource Insects,Chinese Academy of Forestry)  
The difference in composition of lac collected from 6 regions of Panzhihua was analysed in terms of water soluble matter,lac dye,lac resins and lac wax.The contents of Cu,Fe,Zn,Mn,K,Ca,Mg,S and P in lac were determined by inductively coupled plasma-atomic emission spectrophotometer(ICP-AES).Results show that there is a significant difference in moisture content of lac from different regions.An obvious difference in contents of water soluble matter and dye in the lac was found between Miyifangtian and other five regions.The content of red pigment in lac from Yanyuan was the highest(12.41%).There was an insignificant difference in total resin content of lac from some regions,but a significant difference in balsam content of lac was observed between Ertan and other five regions.No marked difference in lac wax content was found between the six regions.There were significant differences in contents of S,P,K,Ca,Fe and Zn between different regions,indicating that climate and topography in the producing area have a certain influence on the composition of lac.
【Fund】: 国家林业局“948”项目(2008-4-78);; 国家林业科技成果推广项目([2010]11);; 科技部农业科技成果转化资金项目(2010GB24320619)
【CateGory Index】: TQ351.4
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