Glicerine Kit
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Glycerol is one of the quantitatively most important compounds in wine (5 - 8 g/l). It confers sensations of sweetness and roundness, counteracting the bitter and astringent sensations of the wine; it is also one of the factors contributing to the formation of ‘arches’ when the wine is swirled in the glass.
Modest glycerol contents can be found in musts made from raisined or rotten grapes. Glycerol is mainly produced by yeasts during the first stages of alcoholic fermentation: the NADH formed by the oxidation of glyceraldehyde-3-phosphate cannot release the H+ to acetaldehyde, which has not yet formed, so it reoxidises to dioxyacetonfosphate, which is reduced to glycerophosphate and then hydrolysed to glycerine (glyceropyruvic fermentation). This metabolic strategy makes it possible to maintain an adequate NAD+/NADH ratio and thus the continuation of glycolysis.
Technical features
ADVANTAGES
READY TO USE: Liquid and easy to use.
PRECISION AND SPECIFICITY: Characterized by high specificity, they provide accurate and repeatable data.
LOW COSTS AND LONG SHELF LIFE: Minimal cost per test and a long shelf life (average 24 months).
FAST ANALYSIS: Allow for quick and reliable results (up to 300 tests/hour), especially when used with automated instruments like our HYPERLAB series analyzers.
SIMPLE AND ECONOMIC CALIBRATION: It is possible to use single-method and/or multi-parametric calibration/verification standards. The determination of the Blank is performed automatically every 12 hours with the Hyperlab analyzers.
METHODS APPROVED BY INTERNATIONAL STANDARDS: Numerous enzymatic methods have been approved and validated by international organizations such as:
ISO (International Standardization Organization)
AOAC (American Association of Analytical Chemists)
IFU (International Federation of Fruit Juice Producers)
OIV (International Wine Office)
IDF (International Dairy Federation)
EBC (European Brewery Convention) and many others.
STERGLASS ENZYMATIC AND COLORIMETRIC KITS
Enzymatic and colorimetric kits are widely used in quality control for the main analytical determinations of a variety of food products such as fruit juices, wine, beer, dairy products, eggs, meat, and for the monitoring of fermentation processes carried out by microorganisms for the determination of sugars, organic acids, and other components such as sulfites, phenolic compounds, and metals.
Based on high-quality purified enzymes, enzymatic analysis allows for precise, highly accurate, and repeatable measurements, even in complex matrices. The absorbance variation, measured spectrophotometrically as a result of enzymatic transformations, is closely correlated with the concentration of the various analytes sought.
Industries
Applications
Product codes
| Steroglass code | Description | N° analyses |
|---|---|---|
| SQPE060138 | Glicerine 2x100ml | manual 100/200; automatic 400/600 |
| SQPE078691 | Uv Glycerol 50ml | manual 25/50; automatic 100/200 |