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AquaLab 4TE Series User Manual

AquaLab 4TE Series
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14 FURTHER READING AquaLab
activity and pH on the growth of Bacillus cells and spore: A response
surface methodology study. International Journal of Food Microbi-
ology 19:207-216.
Rockland, L.B., and G.F. Stewart. 1981. Water activity: Influ-
ences on food quality. Academic Press, New York.
Rockland, L.B., and S.K. Nishi. 1980. Influence of water activity
on food product quality and stability. Food Tech 34:42-59.
Saad, R.R. 1992. Effect of water activity on growth and lipids of
xerophilic fungi, Aspergillus repens and Aspergillus amstelodami.
Zentralblatt Fuer Mikrobiologie 147:61-64.
Salter, M.A., D.A. Ratkowsky, T. Ross, and T.A. McMeekin. 2000.
Modelling the combined temperature and salt (NaCl) limits for growth
of a pathogenic Escherichia coli strain using nonlinear logistic regres-
sion. International Journal of Food Microbiology 61:159-167.
Santos, J., T.M.Lopez-Diaz, M.C.Garcia-Lopez, M.C.Garcia-Fernandez,
and A.Otero. 1994. Minimum water activity for the growth of
Aeromonas hydrophila as affected by strain, temperature and humec-
tant. Lett Appl Microbiol 19:76-78.
Sautour, M., A. Rouget, P. Dantigny, C. Divies, and M. Bennsoussan.
2001. Prediction of conidial germination of Penicillium chrysogenum
as influenced by temperature, water activity and pH. Lett Appl Mi-
crobiol 32:131-134.
Seow, C.C., T.T. Teng, and C.H. Quah. 1988. Food preservation
by moisture control. Elsevier, New York.
Shebuski, J.R., O. Vilhelmsson, and K.J. Miller. 2000. Effects of
growth at low water activity on the thermal tolerance of Staphylo-
coccus aureus. Journal of Food Protection 63:1277-1281.
Taoukis, P., W. Breene, and T.P. Labuza. 1988. Intermediate mois-
ture foods. Adv Cereal Sci Technol 9:91-128.
86

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AquaLab 4TE Series Specifications

General IconGeneral
Accuracy±0.003 aw
Temperature Control15 to 50 °C
Measurement Time5 minutes
Measurement PrincipleChilled Mirror Dewpoint
Resolution0.0001 aw
Temperature Accuracy±0.1 °C
CommunicationUSB, RS-232
DisplayLCD
Measurement Range0.03 to 1.00 aw
Operating Temperature4-50 °C (39-122 °F)
Data Storage8000 readings
Power Supply50/60 Hz
Storage Temperature-20 to 50 °C

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