HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Newcomer, J. L. Articles by Smith, C. K. Search for Related Content PubMed Articles by Newcomer, J. L. Articles by Smith, C. K.

Effect of an Electric Current on the Efficiency of Homogenization of Ultrasonically Irradiated Milk¹

Departments of Agricultural Engineering, Dairy, and Microbiology and Public Health Michigan Agricultural Experiment Station, East Lansing

ABSTRACT

This study was concerned principally with determining the influence of a dissolved gas phase and/or an electric current on the efficiency of homogenization. There is evidence of a positive relation between homogenization efficiency and current strength through the sample. Theoretically, there should be an optimum electric current strength, and the homogenization efficiency should be expected to increase with an increase in current strength, reach maximum, then decrease, with a further increase in current. Such an experimental relationship was observed. During radiation in a metallic tube, the efficiency factor was not affected conclusively by reversing the polarity of the container and the platinum probe. But, when the milk was radiated directly in the transducer bowl, the homogenization efficiency factor improved when the central electrode was negatively charged.

¹ Approved for publication by the Michigan Agricultural Experiment Station as Journal Article No. 2069.

² Based on a thesis submitted for the M.S. degree, Department of Agricultural Engineering, Michigan State University, May, 1955. 3 In the early literature concerning this subject, the term "supersonics," and occasionally "suprasonics," was used by some authors instead of "ultrasonics." Since about 1935, the term ultrasonics is most frequently used.