Wheat middlings
Wheat middlings or wheat mill run, stated by AAFCO, is coarse and fine particles of wheat bran and fine particles of wheat shorts, wheat germ, wheat flour and offal from the "tail of the mill".
Wheat middlings is an inexpensive byproduct intermediate of human food processing, commonly referred to as floor sweepings (although such products are generally captured long before they would end up on the floor). It is an inexpensive filler in pet food and a basis for manufacturing semolina. It has 96 percent of the energy value of barley and 91 percent of the energy value of corn.[1]
Due to its high energy content and low price, wheat middlings is being researched as a biofuel.[2] A burner designed to make good use of it is the USDA-OARDC AFBC, a small scale Atmospheric Fluidized Bed Combustor.[3] This technology originated in the 1920s in the chemical industry and was adopted by the power sector in the 1980s. Dr. Harold Keener has led the research on the OARDC-AFBC for the past twenty years, though the project lost some funding after the resolution of the energy crisis associated with the 1990 oil price shock.[4]
| Nutrient Value | ||
|---|---|---|
| Analysis | Percentage | |
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| Dry Matter | 89% | |
| Crude Protein | 16.5% | |
| Crude Fiber | 7.5% | |
| Neutral Detergent Fiber | 32% | |
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