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Preparation, Evaluation and Characterization of Rutin-Chitooligosaccharide Complex.

Ruge Cao1, Qiuchen Ma1, Yu Fu1

  • 1State Key Laboratory of Food Nutrition and Safety, College of Food Engineering and Biotechnology, Tianjin University of Science and Technology, No. 29, 13th Avenue, TEDA, Tianjin, 300457, China.

Plant Foods for Human Nutrition (Dordrecht, Netherlands)
|June 8, 2019
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Summary
This summary is machine-generated.

A new rutin-chitooligosaccharide (Rutin-COS) complex improves rutin

Keywords:
AntioxidationBacteriostasisChitooligosaccharideComplexDebitteringRutin

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Area of Science:

  • Food Science
  • Biochemistry
  • Material Science

Background:

  • Rutin, a flavonoid, has beneficial bioactivities but is limited by bitterness and poor water solubility.
  • These properties hinder its use in functional foods.
  • Developing novel delivery systems is crucial for enhancing rutin's applications.

Purpose of the Study:

  • To prepare and characterize a novel complex of rutin and chitooligosaccharide (Rutin-COS).
  • To evaluate the impact of spray-drying and freeze-drying methods on Rutin-COS properties.
  • To assess the improved water solubility, reduced bitterness, and enhanced bioactivities of the complex.

Main Methods:

  • Complexation of rutin with chitooligosaccharide (COS) using spray-drying and freeze-drying techniques.
  • Characterization of the Rutin-COS complex using Scanning Electron Microscopy (SEM), 1H-NMR, and Rotating-frame Overhauser Effect Spectroscopy (ROESY).
  • Evaluation of water solubility, bitterness, antioxidant activity, and antibacterial activity.

Main Results:

  • Spray-drying proved more effective than freeze-drying for creating a stable Rutin-COS complex.
  • The spray-dried Rutin-COS exhibited significantly increased water solubility and reduced bitterness compared to native rutin.
  • Enhanced antioxidant and antibacterial activities were observed in the spray-dried Rutin-COS complex.
  • Complexation was confirmed to involve hydrogen bonds between rutin's A and B rings and COS.

Conclusions:

  • Spray-drying is a superior method for producing stable Rutin-COS complexes with improved functional properties.
  • The Rutin-COS complex overcomes the limitations of rutin, making it suitable for functional food applications.
  • This study highlights the potential of complexation with COS to enhance the bioavailability and efficacy of rutin.