Unitech Scientific products

D-Glucose/Fructose UniTab Reagent (=GF):  An enzymatic test kit for determination of total D-glucose plus D-fructose (reducing sugars) in grape juice, fermenting wine, and other  samples.   

L-Malic Acid Unitab Reagent (=LMA):  An enzymatic test kit for determination of L-malic acid in grape juice, fermenting wine, and other liquid samples and other samples.  Contains enzymes, substrates and buffer components in tablet form and as aqueous solutions and suspensions.  

Determine primary amino nitrogen compounds (or Nitrogen by OPA = NOPA) in grape juice & fermenting wine/must samples.. Contains buffered N-Acetyl-l-cysteine (NAC) tablets, ophthaldialdehyde (OPA), and Nitrogen Standard Solution. Each tablet is dissolved in 5 mL of deionized water, permitting the user to prepare only as much working reagent as required for daily use.  This “fast blanking” method only requires working reagent (the blank reagent solution is no longer required).  This procedure is based on a published method from UC Davis.

D-Lactic Acid UniFlex Reagent (=DLA-F): An enzymatic test kit for the determination of D-lactic acid in wine and other liquid samples and other samples. Contains buffer, NAD Substrate, enzymes, and standard as ready-to-use aqueous solutions and suspensions.

Anthocyanins, Color Density, Hue, Bleaching ; Measurement of phenolics during harvest & vinification can provide valuable information for optimizing and controling wine quality. 

For the determination of tartaric acid in wine and other liquid samples. In the presence of tartaric acid, the reagent forms an orange/red color which is read photometrically.

A photometric test kit for determination of Total Sulfites in juice, fermentation samples and wine. Perform a batch of Sulfite tests in 30-minutes. Suitable for Red, White, and Rose wines – sample blanking method.

An enzymatic test kit for determination of both D-glucose and D-fructose (reducing sugars) in foods, beverages and other samples. Contains ready-to-use Buffer solution and two enzyme suspensions (Hexokinase/G6PDH and PGI), permitting independent determinations of D-glucose and D-fructose. Also contains D-fructose and D-glucose standards.  The Fructose Standard is of particular benefit in monitoring the (slower) PGI mediated reaction.