FIELD: chemistry.
SUBSTANCE: sampling is performed, evaluating the quality indicators, characterized by obtaining of an equilibrium wine gas phase, its composition is converted into an electrical signal using a 2-piezoelectric bulk acoustic waves resonators (piezo sensors). Polyoxyethylene(21)-sorbitan-monooleate (Tween) and polyvinylpyrrolidone (PVP) sorbents films sorbents are applied to the piezo sensor electrodes from acetone solutions. Piezo sensor responses (ΔF) are recorded for at least 60 seconds, formed as a sum signal and its area S"b.o." is calculated as geometric figure area for the time of measurement. Then the maximum signal ΔF value is determined for each piezo sensor, and volatile substances sorption A (Tween/pvp) efficiency parameter is calculated, "visual footprint" area is compared to the sorption efficiency parameter with the corresponding data for the wine samples that meet the requirements of the standard, and a decision is made on the quality of wine.
EFFECT: determination of sugars and presence of artificial flavours in grape wines with analysis time reduced by 3-4 times.
1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF DETERMINING ARTIFICIAL FLAVORING AGENTS IN ALCOHOL-CONTAINING SOLUTIONS | 2018 |
|
RU2706438C1 |
| METHOD FOR RECOGNIZING ARTIFICIAL AND NATURAL ORANGE AROMA IN JUICES AND BEVERAGES | 2004 |
|
RU2267780C1 |
| METHOD FOR IDENTIFYING FALSIFICATION OF AUTOMOTIVE GASOLINE | 2021 |
|
RU2765798C1 |
| METHOD OF FORMING MATRIX SENSORS OF "STATIC ELECTRONIC NOSE" TO IDENTIFY MUSCAT AROMA OF GRAPE, GRAPE JUICE AND RAW MATERIALS | 2010 |
|
RU2442158C2 |
| METHOD OF FORMING MATRIX SENSORS FOR "STATIC ELECTRONIC NOSE" FOR ASSORTMENT AND FALSIFICATIONS IDENTIFICATION OF APPLE JUICE, NECTARS AND DRINKS WITH ARTIFICIAL FLAVORS ADDITION | 2010 |
|
RU2442159C2 |
| SUGAR EXAMINATION METHOD | 2017 |
|
RU2678770C1 |
| METHOD FOR INDUSTRIAL FLAVOURS QUALITY ASSESSMENT | 2007 |
|
RU2328732C1 |
| TEST METHOD FOR DETERMINING DEGREE OF OXIDATIVE RANCIDIFICATION OF ANIMAL FAT | 2005 |
|
RU2296323C1 |
| TEST METHOD FOR DETERMINING VOLATILE ACIDITY OF WINE | 2007 |
|
RU2329495C1 |
| METHOD OF DETERMINATION OF ADULTERATION OF SEDATIVES BASED ON NATURAL OILS WITH APPLYING CATION OF PIEZOELECTRIC SENSOR ARRAY | 2008 |
|
RU2361206C1 |
