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›› 2005, Vol. 25 ›› Issue (S1): 137-138.

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EXAMINATION METHOD OF PINUS MASSONIANA LAMB. ROSIN BLENDED WITH P. ELLIOTTII ENGELM. ROSIN

SONG Zhan-qian   

  1. Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, China
  • Received:2005-06-20 Revised:1900-01-01 Online:2005-10-20 Published:2005-10-20

Abstract: A GC method for examinating rosin was presented. The different contents of isopimaric acid in rosins of Pinus massoniana and P.elliottii, which are <2% and >15% respectively, can be utilized to judge whether a rosin is a blended one. A P. massoniana rosin is judged to be blended with some P. elliottii rosin when its content of isopimaric acid is > 2%.

Key words: Pinus massoniana Lamb., Pinus elliottii Engelm., rosin

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