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REPRINTS, COPIES
| Acott, K.M. and T. P. Labuza. 1975. Microbial growth response to water sorption preparation. J. Food Technology 10:603-611. |
| Purpose: This reported examination of the effect of water on the growth response of four organisms, Pseudomonas fragi, Candida cypolytica, Staphyloccus aureus, and Aspergillus niger in two intermediate moisture food systems. |
| Abstract: Intermediate moisture food systems were prepared by both an adsorption and desorption method to similar Aw. Hysteresis occurred above an Aw of 0.86. Four organisms, Candida cypolytica, Pseudomonas fragi, Staphylococcus aureus and Aspergillus niger, when inoculated in a pork system, showed more rapid growth in systems prepared by a desorption process than by an adsorption process at the same Aw. In a solid chicken cube system, the same effect was found but the difference was less between the adsorption and the desorption systems. These results indicate that the method of addition of water to a food system as well as the Aw is important in determining the response to growth. |
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