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Citation: Zhao Dajian, Yiang Jianhua, Yu Xianchao, Wang Derun. MOLECULAR WEIGHT OF XANTHAN POLYSACCHARIDE[J]. Chinese Journal of Applied Chemistry, ;1989, 6(5): 86-88. shu

MOLECULAR WEIGHT OF XANTHAN POLYSACCHARIDE

1.
1. Department of Biology, Nankai University, Tianjin;
2.
2. Central Laboratory, Nankai University, Tianjin

Received Date: 23 November 1988
Available Online: 16 March 1989

In this paper,four fractions of xanthan gum with different molecular weight determined by SALS technique were prepared by ultrasonication. Taking these fractions as standards, the various average molecular weight of natural xanthan, M_n=1.41×10⁶,M_w=3.08×10⁶,M_v=2.80×10, M_z=6.65×10⁶, were obtained by GPC in 0.80M NaCl aqueous solution. The molecular weight distribution index D and intrinsic viscosity of native xanthan werecalculated as 2.18 and 2049.5mL/g respectively.
- Xanthan,
- Molecular weight,
- Molecular weight distribution,
- Gel permeation chromatography,
- Small angle laser light scattering
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