This method describes how to determine the capacity for water imbibition (moisture uptake) in barley.
Barley intended for the production of malt is evaluated on the basis of its capacity for water imbibition.
Barley is steeped according to a defined scheme, and the absorption of the steeping liquor by the kernels at defined times is determined by calculating the moisture content. The moisture content after 72 h steeping time is used to assess the absorption of steeping liquor or the capacity for water imbibition in barley.
Production facilities in the beverage industry which fill beverages in containers with crown cap or pull-off closures
Bottles are filled with mineral water and sealed with crown caps or pull-off closures to be tested. The samples are subjected to treatment in a light cabinet and subsequently tasted against a reference sample.
Water intended for use as an ingredient in the production of beer (brewing liquor) or other foods
A specified quantity of water is evaporated, and any remaining moisture is subsequently eliminated in a drying oven. The dry residue is then weighed.
The method describes how to determine acrylamide in drinking water using gas chromatography.
Water intended for use as an ingredient in the production of beer (brewing liquor) or other foods
The method facilitates the determination of trace amounts of acrylamide monomers in aqueous matrices and is based upon the bromination of the acrylamide double bond. The reaction product (2,3-dibromopropionamide) is extracted from the mixture with ethyl acetate after precipitation with sodium sulfate. The extract is purified in a Florisil column and analyzed using gas chromatography (GC/ECD). The detection limit in aqueous matrices is approx. 0.032 µg/l.
Water intended for use as an ingredient in the production of beer (brewing liquor) or other foods
This method describes how to measure the benzene content of drinking water using an extraction technique.
Drinking water intended for use as an ingredient in the production of beer (brewing liquor) or other foods
The unfiltered water sample is extracted using a non-polar solvent (e.g., pentane), and the extract is measured using gas chromatography with a flame ionization detector.