Vintessential™ test kits are specifically designed for winemaking and wine laboratories but have applications in many other beverage industries. They are considered the gold standard of wine analysis testing and are used by accredited laboratories worldwide.
Vintessential™ test kits were first launched in 2003 and they are the market leaders in Australia, New Zealand and the USA. We are continually working on new Test Kits in-house and in conjunction with renowned research bodies. Produced in ISO17025 accredited wine testing laboratories Vintessential™ test kits offer unsurpassed accuracy and certainty of results for our many customers around the world.
Acetic acid can indicate spoilage in wine and is limited by regulation in most wine-producing countries. In wine, it can be determined enzymatically by monitoring the reaction that produces NADH. The amount of NADH formed is measured at 340 nm and is stoichiometrically related to the amount of acetate consumed. Analytical principle The Vintessential™ Acetic […]
During fermentation of grape juice, yeasts require nitrogen as a nutrient, with a portion provided by primary amino acids. This test kit is suitable for measuring the primary amino acid nitrogen content in grape juice and non-fermenting must. The Yeast Available Nitrogen (YAN) content of the juice can be determined by adding this PAAN content […]
Ammonia is found in both grape juice and wine. It is an important nutrient for yeast during primary fermentation. The amount of NADH consumed is measured at 340 nm and is stoichiometrically related to the amount of ammonia present. The Yeast Available Nitrogen (YAN) content of the juice can be determined by adding the Ammonia […]
Citric acid may be used at the final stages of winemaking to make minor adjustments to acid levels without affecting the bi-tartrate stability of the wine. In wine, it can be determined enzymatically by monitoring a reaction that consumes NADH. The amount of NADH consumed is measured at 340 nm and is stoichiometrically related to […]
Sulfur dioxide is used as a preservative in wine and there are restrictions limiting the amount that can be added in most wine producing countries. This test kit is a fast and easy way to determine the amount of free sulfur dioxide in wine samples, without the need for the laborious setup associated with traditional […]
Gluconic acid is a non-volatile organic acid produced in grapes when certain bacteria and mould (especially Botrytis cinerea) cause glucose to oxidise. This simple test is performed with a spectrophotometer to provide an accurate result in real units of grams per litre. Analytical principle The Vintessential™ Gluconic Acid Test Kit uses an enzymatic method to […]
D-Glucose/D-Fructose 30 Test Kit Instructions. As the main sugars found in grape juice and wine, glucose and fructose can be determined enzymatically by using this spectrophotometric assay. Analytical principle The Vintessential™ Glucose / Fructose Test Kit determines the concentration of fermentable sugars through a sequence of enzymatic reactions involving hexokinase (HK), glucose-6-phosphate dehydrogenase (G6PDH) and […]
Malo-lactic fermentation occurs in wine when MLF bacteria convert malic acid to lactic acid. This spectrophotometric assay accurately determines the levels of malic acid, allowing MLF progress to be monitored and ensuring that conversion is complete. Analytical principle The Vintessential™ L-Malic Acid Test Kit determines malic acid concentrations using enzymatic reactions involving malate dehydrogenase (MDH) […]
For all wines made with added sucrose (sparkling wines, as well as table wines in those countries where chaptalisation is permitted), it is important to invert it before measuring residual sugar. This kit enables you to measure sugars easily. Analytical principle The Vintessential™ Sucrose + D-Glucose + D-Fructose Test Kit enables the determination of sucrose, […]
Sulfur dioxide is used as a preservative in wine, and there are restrictions limiting the amount that can be added in most wine-producing countries. This test kit is a fast and easy way to determine the amount of total sulfur dioxide in wine samples, without the need for the laborious setup associated with traditional methods. […]
This kit has been designed to work perfectly with our new Chemwell Discrete Analysers (and Thermo’s Arena and Gallery Analysers). All the volumes are set to run out at the same time, so you won’t suffer any wastage. Acetic acid can indicate spoilage in wine and is limited by regulation in most wine-producing countries. In […]
During fermentation of grape juice, yeasts require nitrogen as a nutrient, with a portion provided by primary amino acids. This test kit is suitable for measuring the Primary Amino Acid Nitrogen (PAAN) content in grape juice and non-fermenting must. The Yeast Assimilable Nitrogen (YAN) content of the juice can be determined by adding this PAAN […]
Ammonia is found in both grape juice and wine. It is an important nutrient for yeast during primary fermentation. The Yeast Assimilable Nitrogen (YAN) content of the juice can be determined by adding the Ammonia Nitrogen (AN) content to the Primary Amino Acid Nitrogen (PAAN) content. Analytical principle The Vintessential™ Ammonia Test Kit enables automated […]
This kit contains six vials of varying concentrations of the main wine components analysed enzymatically. The 6 calibration solutions in the kit each contain the following compounds: D-Glucose & D-Fructose, concentrations ranging from 0g/L to 20g/L L-Malic Acid, concentrations ranging from 0g/L to 3g/L Acetic Acid, concentrations ranging from 0g/L to 2g/L Purpose The Vintessential™ […]
Sulfur dioxide is used as a preservative in wine and there are restrictions limiting the amount that can be added in most wine producing countries. This test kit is a fast and easy way to determine the amount of free sulfur dioxide in wine samples, without the need for the laborious setup associated with traditional […]
This kit has been designed to work perfectly with our new Chemwell Discrete Analysers (and Thermo’s Arena and Gallery Analysers). All the volumes are set to run out at the same time, so you won’t suffer any wastage. As the main sugars found in grape juice and wine, glucose and fructose can be determined enzymatically […]
This kit has been designed to work perfectly with our new Chemwell Discrete Analysers (and Thermo’s Arena and Gallery Analysers). All the volumes are set to run out at the same time, so you won’t suffer any wastage. Malo-lactic fermentation occurs in wine when MLF bacteria convert malic acid to lactic acid. This spectrophotometric assay […]
Analytical principle The Vintessential™ Malic Acid test kit provides automated determination of malic acid concentrations in wine, juice and must samples. The assay is commonly used throughout the winemaking process to monitor acid composition, assess grape maturity and track fermentation progress. Malic acid is quantified using a series of enzyme-catalysed reactions that generate a measurable […]
Purpose The Vintessential™ PAAN Standard Kit is designed to support calibration, verification and quality assurance of Primary Amino Acid Nitrogen (PAAN) analysis performed on compatible autoanalysers. The standards provide known concentrations of primary amino nitrogen, enabling laboratories to verify instrument performance, validate analytical methods and maintain confidence in routine testing results. Key parameters Analyte: Primary […]
Purpose The Vintessential™ Mixed Standard Kit contains certified concentrations of multiple wine analytes and is designed to support calibration, verification and ongoing quality assurance of automated wine analysis systems. By providing a stable reference material across a range of commonly measured wine parameters, the kit enables laboratories to validate analytical performance, monitor consistency and maintain […]
Sulfur dioxide is used as a preservative in wine and there are restrictions limiting the amount that can be added in most wine producing countries. This test kit is a fast and easy way to determine the amount of free sulfur dioxide in wine samples, without the need for the laborious setup associated with traditional […]
This kit contains 8 standards for the measurement of Yeast Assimilable Nitrogen (YAN) content of juices on automated discrete analysers. Used together, these standards are suitable for the calibration of Vintessential™ test kits: Primary Amino Acid Nitrogen for Discrete Analysers 500 tests and Ammonia kit for Discrete Analysers 500 tests. The standards are prepared in […]
