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Effects of methoxy group content on properties of soluble soybean polysaccharide film
  
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KeyWord:methoxy group  soybean polysaccharide  film property  atomic force microscope (AFM)
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LIU Saina  
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Abstract:
      The effects of methoxy group content on the properties of soluble soybean polysaccharide film were studied. The results indicated that the viscosity of soluble soybean polysaccharide film liquids increased and absolute Zeta potential decreased with methoxy group content increasing. Film properties, which contained film thickness, solubility in water, moisture content, transparency and elongation at break, significantly decreased with methoxy group content increasing; however, tensile strength, separation from water and oxygen gradually increased. Atomic force microscope(AFM) results showed that with methoxy group content increasing, the density and surface smooth of the soybean polysaccharide film became better, otherwise the surface of film structure was rough.
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