“…In the production of many foods, dietary supplements and herbal medicines, the extraction of bioactive compounds from plant materials is usually the first process (Teng & Choi, 2013;Gong et al, 2015;Shang et al, 2016;Xu et al, 2016;Chanioti & Tzia, 2017;Miller et al, 2017). Plant materials are usually pulverised before extraction, as the particle size can impact on the extraction yields (Taralkar et al, 2016;Chen et al, 2017;Jovanovic et al, 2017). However, the particles created by the commonly used pulverisers (like shear pulverisers and roll pulverisers) usually have a broad particle size distribution, leading to some particles out of the particle size specification (i.e.…”