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Structural characterization and emulsifying properties of thinned-young apples polysaccharides
Yanjie Hou1, Tian Gong1, Jiangtao Zhang1
1College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, 710062, PR China.
Biochemical and Biophysical Research Communications
|July 13, 2019
Summary
Thinned-young apple polysaccharides exhibit excellent emulsifying properties. These natural compounds show potential as effective emulsifying agents in various applications.
Area of Science:
- Food Science
- Polymer Chemistry
- Biochemistry
Background:
- Apple polysaccharides are under investigation for their functional properties.
- Emulsifying agents are crucial in food and cosmetic industries.
- Extraction and characterization of novel polysaccharide emulsifiers are of significant interest.
Purpose of the Study:
- To extract and characterize polysaccharides from thinned-young apples.
- To evaluate the emulsifying capacity of these apple polysaccharides.
- To investigate the influence of pH and cation concentration on emulsion stability.
Main Methods:
- Hot water extraction of apple polysaccharides at 88°C for 120 minutes.
- Monosaccharide composition analysis and molecular weight determination.
- Emulsifying capacity assessment and emulsion stability studies under varying pH and ionic conditions.
Main Results:
- Polysaccharides from three apple varieties (Jinshiji, Qinyang, Pinklady) had identical monosaccharide composition (xylose, mannose, galactose, glucose) and molecular weights of 200-300 kDa.
- Jinshiji apple polysaccharide demonstrated superior emulsifying capacity compared to Qinyang and Pinklady.
- Emulsion droplet size was smaller at pH 2.0-4.0. High concentrations of Na+ and Ca2+ destabilized the emulsion, while low concentrations maintained stability.
Conclusions:
- Thinned-young apple polysaccharides possess significant emulsifying properties.
- The emulsifying performance is influenced by pH and cation ion concentration.
- These apple-derived polysaccharides show promise as natural emulsifying agents.
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