TPP-chitosomes as potential encapsulation system to protect carotenoid-rich extract obtained from carrot by-product: A comparison with liposomes and chitosomes

Author(s)

Esposto, Bruno Stefani ; Botelho Pinho, Sabrina Guarda ; Thomazini, Marcelo ; Ramos, Ana Paula ; Tapia-Blacido, Delia Rita ; Martelli-Tosi, Milena

• Document type: Journal article
• Source: Food Chemistry; v. 397, p. 8-pg., 2022-08-06.

Abstract

The objectives of this study were to extract bioactive compounds from carrot by-products and evaluate their chemical stability after encapsulation in liposomes (L) coated either with chitosan (Ch) or using sodium tripolyphosphate for chitosan complexation (TPP-Ch). The main compounds quantified in this study were carotenoids and total phenolic compounds, which reached encapsulation efficiencies higher than 75%. The TPP-Ch charged with carrot extract showed greater particle size (90.5 nm) and zeta potential (+22 mV) than vesicles without coating (68.0 nm and -2 mV, respectively), indicating that liposomes were successfully coated with chitosan. Regarding results of the carotenoid's encapsulated stability, TPP-Ch particles were more efficient preventing their degradation in all the experimental conditions studied (40 and 70 degrees C). It is significant that loaded TPP-Ch particles demonstrated similar results for the stability of carotenoid-rich extracts in ethanol, which would therefore be suitable for application in food industry or any aqueous matrices. (AU)

• FAPESP's process: 19/22502-4 - Study of in vitro digestion of TPP-chitosomes encapsulating phytochemical compounds extracted from carrot byproducts
• Grantee: Bruno Stefani Esposto
• Support Opportunities: Scholarships abroad - Research Internship - Master's degree
• FAPESP's process: 19/05511-0 - Byproducts recovery from carrot juice processing: extraction of phytochemical compounds, encapsulation and application in biodegradable films
• Grantee: Bruno Stefani Esposto
• Support Opportunities: Scholarships in Brazil - Master
• FAPESP's process: 16/18788-1 - Raman microspectroscopy and chemometrics for the characterization of polymer-based microcarrier systems of active/photoactive compounds
• Grantee: Milena Martelli Tosi
• Support Opportunities: Regular Research Grants
• FAPESP's process: 19/23171-1 - Byproducts recovery from food processing: extraction of phytochemical compounds, encapsulation and application in biodegradable films / coatings
• Grantee: Milena Martelli Tosi
• Support Opportunities: Regular Research Grants