Reagents

With a long shelf life, we offer more than 30 enzymatic and colorimetric kits for organic acids, sugars, sulfites, phenolics and more. 

In addition to AOAC and OIV validation, our kits are validated with reference laboratories around the world as well as with in-house QC validation from BioSystems. 
54 products
    • Kit volume: 80 ml
    • Method: Two-reagent differential at 635 nm
    • Limit of linearity: 180 ml/l
    • Limit of detection: 2.0 mg/l (ppm)
    • Calcium is present in wine at concentrations of 6 to 165 mg/L. Instability due to calcium tartrate appears at 4 to 7 months of fermentation.
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  • Carbon dioxide is a natural gas produced during fermentation that is dissolved in wines. The addition of CO2 during preparation directly affects the aroma and taste of wine and can enhance freshness and acidity in the mouth, softening the sweetness. However, it can also intensify bitterness and astringency. Info + Purchase
  • Catechins reduce and prevent anthocyanin oxidation, keeping them from being precipitated. They are also responsible for the bitterness, astringency, yellow hue, structure and stability of the wine. When catechins are polymerized, they form procyanidins that gradually form complexes with proteins, peptides and polysaccharides. Info + Purchase
  • Citric acid is an organic acid naturally present in wine that contributes to total wine acidity. Its content is higher in white wine, as the content in red wine drops during malolactic fermentation yielding volatile acids. The permissible legal limit is 1 g/L, and its concentration must be controlled by wine exporters. Info + Purchase
  • Wine color plays a major role in the impression of quality. Color is also an important indicator in many winemaking processes.Regular use of this test allows enologists to document and confirm their own impressions. Info + Purchase
  • Control Wine (white and red) is a wine (10 x 5 ml) that contains various components at adequate concentrations for quality control in laboratories. The product is designed for intra-laboratory quality control and is supplied with acceptable value intervals. Info + Purchase
  • Control Wine (white and red) is a wine (10 x 5 ml) that contains various components at adequate concentrations for quality control in laboratories. The product is designed for intra-laboratory quality control and is supplied with acceptable value intervals. Info + Purchase
  • Copper is a metal that clearly originates in the process of vinegrowing. The main source is phytosanitary treatments of vineyards to prevent mildew. During harvest, the copper content may be 4 to 6 mg/L. During fermentation its concentration decreases to 0.2-0.3 mg/L due to the formation of copper sulfides or the presence of yeasts that fix the copper contained in the medium.The OIV has set a maximum acceptable limit of copper of 1 mg/L. Info + Purchase
  • The excess of bacteria that are producing D-Lactic acid can inhibit alcoholic fermentation, converting some sugars into D-lactic acid. This is one of the main problems in the winemaking process. Levels above 0.3 g/L of D-lactic acid indicate bacterial contamination. Info + Purchase
  • D-gluconic acid is an indicator of grape deterioration and sanitary condition Info + Purchase
    • Kit volume: 150 ml
    • Method: Two-reagent differential at 340 nm
    • Limit of linearity: 2 g/l
    • Limit of detection: 3 mg/l (ppm)
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  • This test indicates the best moment for grape harvesting and allows alcoholic fermentation to be monitored. It is widely used to determine the dryness of the wine before bottling. Info + Purchase