Record Details

Gamma irradiation inactivation kinetics of medically important bacteria contaminating seafoods

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Title Gamma irradiation inactivation kinetics of medically important bacteria contaminating seafoods
Names Quinn, Dorothy Jean (creator)
Anderson, Arthur W. (advisor)
Date Issued 1966-07-08 (iso8601)
Note Graduation date: 1967
Abstract Gamma irradiation inactivation kinetics were studied using
fifteen organisms naturally contaminating seafoods. Survival curves
for seven Salmonella, three Shigella, two Streptococcus species and
a Staphylococcus, Escherichia and Proteus species were determined
using Hartsell's broth and fresh oysters. Also, the Shigella species
and one species of Streptococcus, Escherichia and Proteus were
studied in sterile crabmeat.
A "tailing effect" at high doses was noted with Salmonella
choleraesuis, Salmonella paratyphi A, Salmonella Wichita, Salmonella
typhosa, Salmonella paratyphi B and Streptococcus faecalis.
A similar effect was observed with Shigella dysenteriae and
Streptococcus faecalis irradiated in all three substrates, Shigella
sonnei irradiated in crabmeat, Escherichia coli irradiated in
Hartsell's broth and Proteus vulgaris in oysters.
The organisms all demonstrated maximum resistance when
irradiated in oysters with the exception of Shigella sonnei which was
more resistant in crabmeat. The substrate offering the least protection
was Hartsell's broth.
Genre Thesis/Dissertation
Topic Oysters -- Bacteriology
Identifier http://hdl.handle.net/1957/47336

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