(19)

(11)

EP 3 041 950 A1

(12)

(43) Date of publication: 13.07.2016 Bulletin 2016/28 (21) Application number: 14840271.2 (22) Date of filing: 27.08.2014

(51) International Patent Classification (IPC):  C12P 21/06(2006.01) C12R 1/07(2006.01) C12N 1/20(2006.01) (86) International application number: PCT/FI2014/000019 (87) International publication number: WO 2015/028701 (05.03.2015 Gazette 2015/09)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME (30) Priority: 27.08.2013 FI 20135866 (71) Applicant: Teknologian tutkimuskeskus VTT Oy 02150 Espoo (FI)	(72) Inventors: SAARELA, Maria FI-02044 VTT (FI) LANTTO, Raija FI-02044 VTT (FI) MAUKONEN, Johanna FI-02044 VTT (FI) (74) Representative: Boco IP Oy Ab  Itämerenkatu 5 00180 Helsinki 00180 Helsinki (FI)