ELECTROLYZED WATER AND ITS CORROSIVENESS ON VARIOUS SURFACE MATERIALS COMMONLY FOUND IN FOOD PROCESSING FACILITIES

Journal of Food Process Engineering - Tập 28 Số 3 - Trang 247-264 - 2005
Beatrice Ayebah1, Y.‐C. HUNG1
1Department of Food Science and Technology
University of Georgia
1109 Experiment Street, Griffin, GA 30223

Tóm tắt

ABSTRACT ASTM A‐36 medium carbon steel, 110 copper, 3003‐H14 aluminum, polyvinylchloride (PVC) type 1 and 304 stainless steel coupons were immersed in electrolyzed (EO) water, chlorine water, modified EO water and deionized water for a period of 8 days, and the properties of these types of water, weights and surface roughness of the coupons were monitored. EO water significantly increased (P < 0.05) the surface roughness of carbon steel, aluminum and copper with time; however, chlorine water, modified EO water and deionized water produced minimal changes on these materials. Regardless of the treatment water used, the surface roughness of stainless steel and PVC essentially remained the same. Carbon steel, copper, aluminum and stainless steel had a fair, good, good and outstanding corrosion resistance in EO water, respectively. Chlorine and modified EO water had a much less corrosive effect than EO water on all the materials tested.

Từ khóa


Tài liệu tham khảo

10.1016/j.corsci.2004.01.022

ASTM., 1999, Standard G1‐90: Standard Practice for Preparing, Cleaning and Evaluating Corrosion Test Specimens, 1

ASTM., 1999, Standard G31‐72: Standard Practice for Laboratory Immersion Corrosion Testing of Metals, 1

10.3168/jds.S0022-0302(91)78523-8

10.1016/S0261-2194(02)00113-8

DAUFIN G., 1988, An introduction to the electrochemical principles of corrosion, Bull. Int. Dairy Fed., 236, 10

DAUFIN G., 1988, Corrosion by peracetic acid solutions, Bull. Int. Dairy Fed., 236, 3

10.1111/j.1745-4549.2004.tb00534.x

FONTANA M.G., 1986, Corrosion Engineering, 39

FRANK J.F., 2000, Influence of surface finish on the cleanability of stainless steel, J. Food Prot., 64, 1178, 10.4315/0362-028X-64.8.1178

10.1111/j.1365-2672.1990.tb01554.x

10.1046/j.0950-5423.2003.00762.x

10.1016/S0168-1605(00)00405-0

10.1111/j.1745-4549.2001.tb00446.x

10.4315/0362-028X-66.2.208

10.1016/S0167-7012(01)00385-2

10.1021/jf010822v

10.1016/S0010-938X(02)00231-7

10.1094/PDIS.2003.87.8.965

MUMMERY L., 1992, Surface Texture Analysis: The Handbook, 23

10.1016/S0168-1605(01)00622-5

10.1016/S0168-1605(03)00334-9

10.1111/j.1365-2621.2001.tb15216.x

STATISTICAL ANALYSIS SYSTEM (SAS)., 1995, User's Guide

10.1046/j.1525-1594.1999.06224.x

10.4315/0362-028X-62.8.857