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Pectic polysaccharides extracted from sesame seed hull: Physicochemical and functional properties
Hua-Min Liu1, Meng-Ke He1, Yong-Gang Yao1
1College of Food Science and Technology, Henan University of Technology, Zhengzhou 450001, China.
International Journal of Biological Macromolecules
|October 21, 2021
Summary
Sesame seed hull polysaccharides were extracted and analyzed. The SSP30 fraction showed potent antioxidant and emulsifying properties, highlighting its industrial potential.
Area of Science:
- Food Science
- Biochemistry
- Material Science
Background:
- Sesame seed hull is a rich source of pectic polysaccharides.
- Understanding the physicochemical properties of these polysaccharides is crucial for their valorization.
Purpose of the Study:
- To extract and characterize pectic polysaccharides from sesame seed hull.
- To evaluate their functional properties, including antioxidant and emulsifying activities.
Main Methods:
- Pectic polysaccharides were extracted using hydrochloric acid.
- Fractions were collected at different ethanol concentrations (30%, 50%, 90%).
- Physicochemical properties (galacturonic acid content, molecular weight) and functional activities were analyzed.
Main Results:
- The SSP30 fraction constituted 75.6% of total polysaccharides, rich in galacturonic acid (76.39%).
- SSP30 demonstrated superior hydroxyl radical scavenging and emulsion stabilization capabilities.
- Higher molecular weight polysaccharides precipitated at lower ethanol concentrations.
Conclusions:
- Sesame seed hull is a valuable source of functional pectic polysaccharides.
- The SSP30 fraction exhibits significant potential for food and industrial applications.
- Fractionation by ethanol concentration effectively separates polysaccharides based on molecular weight and properties.
