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Block copolymers are being introduced in food research as promising stabilisers able to control the digestibility of lipid-based systems such as oil-in-water emulsions. Lipid digestion takes place mainly in the duodenum and involves the action of different agents competing for the oil-water interface of emulsified lipids; bile salts secreted by the gallbladder play a crucial role preparing this interface for the adsorption of the enzyme pancreatic lipase. The aim of this work was to analyse the bulk interactions between triblock copolymers of the family of Pluronics (F127 or F68) and a bile salt (sodium taurodeoxycholate, NaTDC) in Pluronic-stabilised emulsions. These new findings can be exploited in tailoring novel food and pharmacological matrices with improved functional properties, while increasing the scope for identifying functionalities of other potential (bio)polymers.

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