Application of extrusion-cooking technique for foamed starch-based materials Maciej Combrzyński, Leszek Mościcki, Marcin Mitrus, Karol Kupryaniuk and Anna Oniszczuk BIO Web Conf., 10 (2018) 01004 Published online: 26 March 2018 DOI: 10.1051/bioconf/20181001004