Triumfetta cordifolia mucilage and sweet potato dextrin as new hydrocolloid-based carrier with microencapsulation potential of polyphenols

Abstract

Triumfetta cordifolia mucilage (MTC) is an alternative carrier for improvement of microencapsulation efficiency of bioactives by spray drying. Ximenia americana fruits are abundant in antioxidant bioactives (polyphenolic compounds). In general, fruits are subject to seasonal availability having a short lifespan. Microencapsulation is a preservation technique that guarantees the availability of fruits. Natural polysaccharides are strong potentials that can be valorized as encapsulating material. Therefore, this work has aimed to develop an encapsulating material from pyrodextrin of Ipomoea batatas and MTC for microencapsulation of polyphenols’ X. americana juice. The addition of mucilage improved physicochemical parameters of Ximenia microcapsules. The blend leaded to higher encapsulation efficiency (>70%) than pyrodextrin alone (45%). The formulated carrier agent 1.5g mucilage/100g Dextrin hydrocolloids mixture had the first decision score of application properties. Mixtures of mucilage and pyrodextrin proved to be appropriate for encapsulating phenolic compounds, yielding powders that have promising potential for use in the functional food formulations.