Chem. J. Chinese Universities ›› 1990, Vol. 11 ›› Issue (7): 789.

• Articles • Previous Articles    

A Study of the Molecular Weight of Xanthan

Wang Derun1, Yu Xianchao1, Zhao Dajian1, Cao Wuxiong1, Kang Zhadwen2, Wang Yi2   

  1. 1. Central Laboratory, Department of Biology, Nankai University, Tianjin;
    2. The, Sixth Institute of the Academy of Military Medicine, Beijing
  • Received:1988-12-06 Online:1990-07-24 Published:1990-07-24

Abstract: The methods of ultracentrifugation, measuring molecular length by transmissive electron-microscope and small angle laser light-scattering were used to determine the molecular weight of self-made xanthan. The molecular weight measured by the three methods above are 2. 5×106, 6×106-2. 5×106 and 2. 36×106 dalton, respectively. Three results are well consistent with each other.

Key words: Xanthan, Molecular weight, Ultracentrifugation, Transmissive electron- microscope, Small angle laser light-scattering

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