Synergy in Aqueous Systems Containing Bioactive Ingredients of Natural Origin: Saponin/Pectin Mixtures

Area of Science:

• Colloid and Surface Science
• Food Science
• Biomaterials Science

Background:

• Natural ingredients like saponins and pectins are crucial for designing eco-friendly food, cosmetic, and pharmaceutical formulations.
• Controlling the composition of aqueous solutions is key to achieving stable and functional disperse systems.

Purpose of the Study:

• To investigate the synergistic interactions between Quillaja saponins and apple pectins in aqueous systems.
• To understand how varying ingredient ratios affect the properties and stability of these complex solutions.

Main Methods:

• Profile analysis tensiometer (PAT-1) for surface tension and dilational rheology.
• Thin-liquid-film (TLF) microinterferometry and TLF-pressure-balance technique (TLF-PBT) for foam film analysis.

Main Results:

• The ratio of Quillaja saponins to apple pectins significantly influences the structure and stability of aqueous solutions.
• A specific saponin:pectin ratio demonstrated the most pronounced synergy effect.
• Foam film properties, including drainage kinetics and rupture pressure, were successfully modulated.

Conclusions:

• The study provides essential data for developing stable foam formulations using Quillaja saponins and apple pectins.
• These findings support future applications in industrial, pharmaceutical, and biomedical fields.
• Fine-tuning ingredient ratios allows for precise control over the performance of natural disperse systems.