期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 96, 期 1-2, 页码 215-218出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/S0925-4005(03)00527-6
关键词
full fat milk; electrical admittance; milk adulteration
A novel method to detect added water to full fat milk has been developed using single frequency electrical conductance measurements. The characteristics at 100 kHz and 8 degreesC for all skimmed milk samples revealed a linear decrease in conductance with increasing water content over the entire range of water concentrations. In contrast, the conductance of full fat milk showed a decrease only at added water concentrations higher than 10%. At lower added water concentrations, the full fat milk exhibited an anomalous conductivity maximum at 2-3% added water. (C) 2003 Elsevier B.V. All rights reserved.
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