Patent SG-11201803585P-A (SG)
Title: Process for liquid food preservation using pulsed electrical field treatment
Inventor: TIMMERMANS RIAN ADRIANA HENDRIKA
IPC: C02F1/48
Filed: 2016-11-17
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 26 May 2017(26.05.2017) WIPOIPCT (10) International Publication Number WO 2017/086784 A1 (51) International Patent Classification: A23L 3/005 (2006.01) A23B 5/01 (2006.01) A23C 3/033 (2006.01) C02F1/48 (2006.01) A23L 2/48 (2006.01) (21) International Application Number: PCT/NL2016/050799 (22) International Filing Date: (25) Filing Language: (26) Publication Language: 17 November 2016 (17.11.2016) English English (30) Priority Data: 62/256,497 17 November 2015 (17.11.2015) 16177902.0 5 July 2016 (05.07.2016) US EP (71) Applicant: STICHTING WAGENINGEN RESEARCH [NL/NL]; Droevendaalsesteeg 4, 6708 PB Wageningen (NL). (72) Inventors: TIMMERMANS, Rian Adriana Hendrika; Pad van Dikkertje Dap 7, 6708 TC Wageningen (NL). DE MORAES, Ricardo Ermirio; Rua Frederic Chopin 283, 01454-030 Sao Paulo SP (BR). MASTWIJK, Hendrikus Cornelis; Kruislaan 3, Bilthoven (NL). (74) Agent: NEDERLANDSCH OCTROOIBUREAU; P.O. Box 29720, 2502 LS The Hague (NL). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3)) Tf (54) Title: PROCESS FOR LIQUID FOOD PRESERVATION USING PULSED ELECTRICAL FIELD TREATMENT (57) : The present invention relates to a process for fast and homogeneously heating a liquid product to a predetermined temperature by means of resistive heating. According to the invention, sufficient and effective microbial inactivation is achieved upon applying an electrical field strength of between 0.1 - 5.0 kV/cm for a prolonged period of time, thus by selecting a relatively low electrical field strength and a pulse duration of at least 10 microseconds while the maximum temperature of the liquid product autonomously remains below 92°C during the resistive heating. The process of the invention is efficient at neutral pH and at pH be­ low 7. Furthermore, the process of the invention is efficient in inactivating a broad array of relevant micro-organisms. The present invention further relates to said process wherein the liquid product is pre-heated prior to subjecting the liquid product to the process. The present invention also relates to the liquid product obtainable by the process according to the invention. 00 o n o &