Abstract
ABSTRACTTotal numbers of aerobic microorganisms, Gram negative bacteria, Clostridium perfringens, coagulase positive staphylococci, and yeasts and molds were monitored during storage of segments of bovine hides. The preservatives tested were acetic acid, formic acid, and potassium sorbate. Potassium sorbate at any concentration tested did not control adequately any group of microorganisms monitored. Acetic and formic acids at all concentrations tested, significantly inhibited growth of all groups of microorganisms. At the highest concentration tested (0.67M) not only did the formic acid inhibit growth of microogramisms, but it had a lethal effect on all groups monitored except yeasts and molds. Formic acid was a better preservative than acetic acid. Neither formic nor acetic acid inhibited growth of yeasts and molds to the same extent as the other groups monitored.
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