Particle formulation of hydroalcoholic rosemary (Rosmarinus officinalis L.) extracts using a spouted bed

•Polyphenolic extracts are directly applied in spouted-bed encapsulation.•A batch spouted-bed process is used for the encapsulation.•Active constituents are quantitatively transferred from the extracts into particles.•Maltodextrin with dextrose equivalent 6 is sufficient as a sole carrier and shell material.