Nano techniques: an updated review focused on anthocyanin stability

Area of Science:

• Food Science and Technology
• Nanotechnology
• Nutraceuticals

Background:

• Anthocyanins (ACNs), a subgroup of flavonoids, offer significant nutritional value.
• Limited stability and bioavailability hinder the practical application of ACNs.
• Nanoencapsulation presents a promising strategy to overcome these limitations.

Purpose of the Study:

• To review nano-technique applications for anthocyanin stabilization.
• To emphasize the impact on physicochemical stability and health benefits.
• To summarize toxicological evaluations of nano delivery systems.

Main Methods:

• Review of scientific literature on nanoencapsulation techniques for ACNs.
• Analysis of studies focusing on nano-particles and nano-fibrils as delivery systems.
• Evaluation of data on stability, bioavailability, controlled release, and toxicology.

Main Results:

• Nanoencapsulated ACNs in nano-particles and fibrils demonstrate improved stability.
• Enhanced bioavailability and controlled release properties were observed.
• Toxicological profiles of nano delivery systems were summarized.

Conclusions:

• Nanoencapsulation significantly improves the stability and bio-efficacy of anthocyanins.
• Delivery systems offer advanced functions for ACNs in food and medical applications.
• Further research perspectives and challenges for ACN delivery systems are identified.