Ultra-low molecular weight hyaluronic acid and preparation method thereof

Ultra-low molecular weight hyaluronic acid and preparation method thereof

  • CN 111,040,048 A
  • Filed: 12/21/2019
  • Published: 04/21/2020
  • Est. Priority Date: 12/21/2019
  • Status: Active Application
First Claim
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1. An ultra-low molecular weight hyaluronic acid, characterized by:

  • the average molecular weight of the ultra-low molecular weight hyaluronic acid is less than 1200 daltons, the molecular weight distribution range is narrow, the ultra-low molecular weight hyaluronic acid is a mixture of disaccharide to dodecasaccharide of hyaluronic acid, the content of disaccharide of hyaluronic acid is 5-40%, the content of tetrasaccharide of hyaluronic acid is 40-70%, the content of hexasaccharide of hyaluronic acid is 10-30%, the content of octasaccharide of hyaluronic acid is 1-15%, the content of decasaccharide of hyaluronic acid is 1-10%, and the content of more than decasaccharide of hyaluronic acid is less than 6%;

    the structural general formula of the ultra-low molecular weight hyaluronic acid is shown as the following formula I;

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