METHOD OF QUANTITATIVE EVALUATION OF MEAT AND MEAT PRODUCTS ODOUR Russian patent published in 2008 - IPC G01N33/12 A23L1/31 

FIELD: chemistry.

SUBSTANCE: invention can be applied in analytical chemistry of food, and particularly in quantitative evaluation of meat and meat products odour and its change in the process of technological processing and storage. The method involves application of a detector device of 'electronic nose' type. Its matrix is based on six piezoquartz sensors. Their electrodes with oscillation frequency of 8-10 MHz are coated with chromatographic phase solutions of selected substances absorbing volatile meat and meat products odour components. After certain treatment the film mass reaches 10-15 mcg. The sensors are left to rest until the oscillation frequency is stable. Samples are selected and matured in sealed glass vessel, balanced gas phase is selected and placed to the static cell of the detector. Sensor oscillation frequency is registered; visual odour images are mapped according to the signal values and compared to the standards. Completeness degree of the sample odours is evaluated by the visual image figure area.

EFFECT: streamlining of meat and meat products odour analysis, possibility to control products quality at any stage of the production, improved productivity and evaluation objectivity.

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