Ordered Hydrocolloids Networks as Delivery Vehicles of Nutraceuticals: Optimal Encapsulation of Curcumin and Resveratrol

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Nutraceutical compounds such as curcumin and resveratrol are effective for preventing and treating diabetes, cardiovascular disease, obesity and cancer. However, their unstable properties and water insolubility curtail the wholesome application as well as developing food supplements, functional foods and medicinal foods. Highly efficient and economical delivery systems are helpful to overcome this quandary. Among the several available carrier materials, hydrocolloids stand out tall due to their inbred non-toxic traits, cost-effectiveness and compatibility to humans. Herein, iota-carrageenan (IC), from the marine algae, has been chosen as the model hydrocolloid, which forms thermo-reversible gels and oriented fibers with ordered networks, and curcumin and resveratrol, as model nutraceuticals, have been encapsulated in the IC fibers for different time periods, namely for 1, 2, 3, 4 and 5 weeks to determine the optimal encapsulation time. The results demonstrate that encapsulation time dictates the overall entrapped amount in the IC network with an optimal duration of 3 weeks. The two nutraceuticals are readily protected from heat by the IC network and released in a sustained manner. The outcome offers an elegant opportunity to develop value-added delivery systems of nutraceuticals, in particular, and health promoting and disease preventing compounds, in general, based on the ordered hydrocolloid networks.

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Food Hydrocolloids



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