carotenoids polylactic acid nanotechnology membrane membrane emulsification emulsions microfluidics foods microchannel encapsulation solvent-displacement beta-carotene rotating membrane enzymes o/w emulsion dead-end ß-carotene w/o emulsion cross-flow vibrating membrane active ingredients formulation high pressure homogenization emulsification r&d structuring personal care particles lycopene unilever droplets
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