Spray-drying wall materials: relationship with bioactive compounds.

Area of Science:

• Food Science and Technology
• Materials Science
• Biochemistry

Background:

• Spray drying is a prevalent encapsulation technique in the food industry.
• Various biopolymers serve as wall materials for encapsulating bioactive compounds.
• Understanding the physicochemical properties of these wall materials is crucial for effective encapsulation.

Purpose of the Study:

• To review the physicochemical characteristics of biopolymer wall materials used in spray drying for encapsulating bioactive compounds intended for human consumption.
• To identify optimal biopolymer combinations for enhanced encapsulation efficiency and reduced allergenicity.

Main Methods:

• Literature review of biopolymers used as wall materials in spray drying.
• Analysis of physicochemical properties relevant to encapsulation.
• Evaluation of carbohydrate-based and protein-based biopolymer blends.

Main Results:

• Different biopolymers exhibit distinct physicochemical properties affecting encapsulation efficacy.
• Blends of carbohydrate-based and protein-based biopolymers demonstrate superior encapsulation performance.
• Utilizing vegetable proteins in blends can lead to products with lower allergenic potential.

Conclusions:

• The selection of appropriate biopolymer wall materials is critical for successful spray drying encapsulation.
• Biopolymer blends, especially those incorporating vegetable proteins, present a promising strategy for encapsulating bioactive compounds in food applications.
• This approach enhances product functionality while addressing consumer health concerns regarding allergens.