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

Volume

1

fYear

1997

fDate

June 29 1997-July 2 1997

Firstpage

85

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/PPC.1997.679281

Filename

679281