Microencapsulation technologies for functional ingredients
Expertise in microencapsulation of functional ingredients using complex coacervation (proteins and polysaccharides) and spray-drying with natural polymers. Capabilities span encapsulation of vegetable oils, vitamins, and food/feed additives with demonstrated stability in acidic environments, supporting nutrition, food, and feed applications.
Overview
This offering provides applied research expertise in microencapsulation technologies designed to protect and deliver functional ingredients in food, feed, and nutrition applications. The approach leverages two complementary encapsulation methods: complex coacervation using protein-polysaccharide combinations and spray-drying with a broad spectrum of water-soluble natural polymers. These technologies address key industry challenges such as ingredient stability, controlled release, and protection of sensitive bioactives during processing and storage.
Technical specifications
Encapsulation methods:
- Complex coacervation using protein and polysaccharide combinations for both water-soluble and water-insoluble functional ingredients
- Spray-drying technology using a broad range of water-soluble natural polymers
Validated encapsulation experience:
- Vegetable oils
- Water-soluble and water-insoluble vitamins
- Food and feed additives
Performance characteristics:
- Capsules demonstrate stability in acidic environments
- Release triggering in neutral media may require additional resources; enzymatic disintegration in the intestines is offered as a practical alternative
- Multiple protein-polysaccharide combinations available for tailoring capsule properties
Development approach:
- Initial consultation on marketing aspects and selection of encapsulation materials (for example, animal-based versus plant-based, cost considerations)
- Selection of representative functional ingredients
- Feasibility studies and stability testing in both acidic and neutral media
- Scale-up experiments based on the most promising technology
Technology readiness level
The technology is at an applied research stage with demonstrated proof-of-concept across multiple ingredient categories including oils, vitamins, and additives. Capsules have been validated for stability in acidic environments. Next steps involve feasibility studies for specific ingredients, stability validation in neutral media, and scale-up experiments to advance toward commercial readiness.
About Fraunhofer Institute
Fraunhofer is a large, multi-site applied research organization based in Germany, operating a nationwide network of institutes and research units with a strong industry-facing mission. Its contract-research model aligns work to real manufacturing and deployment needs, with pilot lines, test labs, and demonstration facilities for validation and scale-up. Many institutes are integrated with nearby universities and regional industry clusters, enabling joint appointments, shared infrastructure, and fast talent pipelines. Research is supported by competitive European programs alongside German federal and state funding, complemented by extensive contract revenue from private-sector collaborations. A dedicated technology transfer function manages IP, licensing, and startup formation.
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