Back

Falling Numbers

PDFdnwIcon Testing Service Catalog (PDF) Print Email

TECHNICAL DATA SHEET

Price of the test:

$55 per analysis

Acceptable Matrices:

Designed specifically for wheat and wheat flours. Other starchy flours can also be tested.

Unacceptable Matrices:

Soy flour, flax seed



Sample Size Requirements:

25 grams



Reportable Units:

Falling number


Turn Around Time:

10 Business Days


Is Rush Available?

No


Method Reference:

AACC 56-81B


Method Description:

Sprouting of the grain seed causes the release of a number of enzymes, including alpha-Amylase. A slurry is made with the ground grain and water and heated in a tube to gelatinize the starch. The time required for a weight to drop through the slurry is then measured. If alpha-Amylase is present, some of the starch will be broken down and the viscosity of the slurry will drop. This causes the weight to fall through the slurry faster, resulting in a lower Falling Number.


Information Required by Submitter:

The Falling Numbers instrument is used to measure the relative amount of sprout damage in wheat and other cereal grains, or flours made from those grains. Samples with Falling Numbers >400 are considered to have an insignificant amount of sprout damage.