Microcapsule Techniques to Emphasize Functional Plant Oil Quality and Their Applications in the Food Industry: A Review.

Natural functional plant oils (FPOs) have been widely exploited due to their abundant biological activities. However, when exposed to oxygen, light, moisture, and heat, some limitations such as oxidative deterioration, impaired flavor, loss of nutritional value and volatile compounds, and decreased shelf life hinder the widespread application of FPOs in the food industry. Notably, the microencapsulation technique is one of the advanced technologies, which has been used to maintain the biological and physicochemical properties of FPOs. The present review provided a comprehensive overview of the nutrient compositions and functionality of FPOs, preparation techniques for microcapsules, and applications of microencapsulated FPOs (MFPOs) in the food industry. FPOs obtained from a wide range of sources were abundant in bioactive compounds and possessed disease risk mitigation and improved human health properties. The preparation methods of microencapsulation technology included physical, chemical, and physicochemical methods, which had the ability to enhance oxidative stability, functional, shelf life, and thermostability properties of FPOs. In this context, MFPOs had been applied as a fortification in sausage, meat, bakery, and flour products. Overall, this work will provide information for academic fields and industries the further exploration of food and nutriment products.