Effect of storage period on sedimentation value (Zeleny test) in wheat

Abstract

Specific conclusions on wheat quality can be drawn from sedimentation value (SV) obtained by Zeleny test (mL). A shortcoming of this method is a reduction of SV during postharvest wheat storage. We studied the dynamics of SV reduction in 15 NS wheat cultivars differing in technological quality. A series of experiments was performed to establish changes in SV depending on the length of wheat storage at room temperature in laboratory. Wheat samples, taken at one-month intervals, were tested for SV (Zeleny test) for one year. The average SV ranged from 20 to 40 mL. The samples with high initial SV generally had a high intensity of SV decline, especially during the last three months of storage. Linear regression showed a significant linear decrease in SV of 0.7 mL per month during the one-year storage period.