FIELD: food industry.
SUBSTANCE: according to the method involving oil sampling the oil sample is thermostated within a temperature (t) range from (-8) to (-16)°C during 1 hour, the sample temperature is measured, the sample is placed into the impulse NMR analyser sensor; one measures the initial amplitude of signals of NMR protons of the oil triacylglycerols across the whole system (ASYS) in percentage terms and the amplitude of signals of NMR protons of the oil triacylglycerols in a liquid phase (ALP) in percentage terms, then one calculates the amplitude of signals of NMR protons of the oil triacylglycerols in a solid phase (ASP) in percentage terms from the formula ASP=ASYS-ALP, the vegetable oil classified as olive oil if ASP>-0.06t2-3.7t+10.2.
EFFECT: achievement of high efficiency of olive oil identification.
3 ex, 1 dwg
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Authors
Dates
2012-03-20—Published
2011-01-12—Filed