Title :
Application of pulsed power technology in nonthermal food processing and system optimization
Author :
Xiangxiao Qiu ; Tuhela, L. ; Zhang, Q.H.
Author_Institution :
Dept. of Food Sci. & Technol., Ohio State Univ., Columbus, OH, USA
fDate :
June 29 1997-July 2 1997
Abstract :
A pilot plant scale pulsed electric field (PEF) continuous processing system was integrated with an aseptic packaging machine to test and demonstrate the efficacy of PEF technology as a nonthermal food processing method. Major components includes a 40000 V/17 MW, high voltage pulse generator and a set of multiple stages co-field PEF treatment chambers. Fluid foods could be processed at 50-150 L/h flow rate and packed aseptically into 200 ml plastic cup containers. System design was discussed and the microbial inactivation effect of this integrated PEF system was validated by microbially-enhanced orange juice (MEOJ) tests. The studies on PEF treated, aseptically packaged fresh orange juice indicated that this technology has the potential to extend the product shelf life.
Keywords :
food processing industry; 17 MW; 40 kV; aseptic packaging machine; aseptically packaged fresh orange juice; continuous processing system; fluid foods; high voltage pulse generator; microbial inactivation effect; microbially-enhanced orange juice; multiple stages co-field PEF treatment chambers; nonthermal food processing; plastic cup containers; product shelf life extension; pulsed electric field; pulsed power technology; system optimization; Electrodes; Food technology; Packaging machines; Pulse generation; Pulse shaping methods; Pulsed power supplies; System testing; Temperature; Thyratrons; Voltage;
Conference_Titel :
Pulsed Power Conference, 1997. Digest of Technical Papers. 1997 11th IEEE International
Conference_Location :
Baltimore, MA, USA
Print_ISBN :
0-7803-4213-5
DOI :
10.1109/PPC.1997.679281
