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《Journal of Anhui Agricultural Sciences》 2008-13
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Preliminary Study on the Effect of Extractives in Induced Discoloration of Silver Chain under Pretreatment

ZHAO Min et al (Key Laboratory of Wood Science and Engineering,Ministry of Education,Beijing Forestry University,Beijing 100083)  
[Objective]The research aimed to study the effect of the acetone extractives of silver chain wood during inducing discoloration under the pretreatment conditions.[Method]The qualitative analysis to the acetone extractives of silver chain wood before and after discoloring was carried on showing the main components of the acetone extractives and then taking comparison.[Result]Under the pretreatment conditions,the content of acetone extractives transformed.The hydroxyl and carboxyl,belonging to auxochromic groups,were oxidized into the carbonyl and ester groups.Also,there were plenty of auxochromic groups and chromophoric groups in the acetone extractives of silver chain.[Conclusion]The hydroxyl and carboxyl,belonging to auxochromic groups,were oxidized into the carbonyl and ester groups,belonging to chromophoric groups,during inducing discoloration under the pretreatment conditions,which makes the wood color deeper.There were plenty of auxochromic groups and chromophoric groups in the acetone extractives of silver chain.The interaction between the auxochromic groups and the chromophoric groups made the wood color deeper.
【Fund】: 国家自然科学基金(30671633)
【CateGory Index】: S792.27
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