Vintessential: Ammonia Test Kits for Wine

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 Nitrogen (AN) content to the Primary Amino Acid Nitrogen (PAAN) content.

Ammonia 30 Test kit

Product Code: 4A120

Please note these tests require the use of a spectrophotometer.

Reagent No.	Reagent	Preparation	Quantity	Stability
1	Buffer	Nil	33 mL	2 years at 4°C
2	NADH	Add 1.7 mL of distilled water to either bottle as required, mix to dissolve	2 x 1.7 mL	2 years at 4°C / 1 month at 4°C once diluted
3	GlDH	Mix gently by inversion before use	0.7 mL	2 years at 4°C
4	Standard	Nil	3.3 mL	2 years at 4°C

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Download Calculation Worksheets

Ammonia Auto Test Kit

Product Code: 4B120

This kit has been designed to work with a Discrete Analyser. Get in touch for more information or a quotation.

Reagent No.	Reagent	Quantity	Stability
1	Buffer	2 x 19.5 mL	24 months at 4°C
2	NADH	2 x 19.5 mL	6 months at 4°C
3	GIDH	2 x 13.2 mL	12 months at 4°C