Control of salmonella in frog legs by chemical & physical methods
Rao, N.M.; Nandy, S.C.; Joseph, K.T.; Santappa, M.
Indian Journal of Experimental Biology 16(5): 593-596
1978
ISSN/ISBN: 0019-5189 PMID: 744625 Document Number: 130063
Hexamine was effective at 0.025% (wt/vol) in nutrient broth against Salmonella. However, a 3% conc. was required to destory Salmonella in frog legs. A synergistic effect was observed between NaCl (10%) and hexamine (0.25%) when tested against Salmonella-contaminated frog legs. The pH had considerable influence on the viability of Salmonella and on the concentration of the antiseptics used. Ethylene oxide fumigation was effective in sterilizing the contaminated frog legs. Salmonella growth was inhibited by heat treatment given in different phases. UV irradiation on Salmonella-contaminated frog legs did not produce any significant effect, but .gamma.-irradiation yielded promising results. Cent percent destruction was observed at 0.5 and 0.7 M rad when the initial counts of Salmonella were 2.5 .times. 103 and 3.6 .times. 105/g of frog legs.