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Emulsifying Ability Index (EAI) (a) and Emulsifying Stability Index (ESI) (b) of SPI-green tea polyphenols conjugates (×) and SPI-black tea polyphenols conjugates (filled square) at several levels of tea polyphenols extract concentration. Different superscript letters show significant differences (p < 0.05) among concentrations. Values are the means of three replicates
