

By-products
A by-product or co-product is a secondary product derived from a manufacturing process or chemical reaction. It is not the primary product or service being produced.
In the context of production, a by-product can be defined as the ‘output from a joint production process that is minor in quantity and/or net realizable value (NVR) when compared to the main products.
A co-products is similar in quantity and/or revenues to the main product.
There are a wide variety of by- and co-products. USFGIS offers inspection services for products from vegetable as well as animal origin.
Common animal sources:
- blood meal – from slaughterhouse operations
- poultry by-product meal – clean parts of the carcass of slaughtered poultry, such as necks, feet, undeveloped eggs, and intestines
- feathers – from poultry processing feather meal – from poultry processing
- meat and bone meal – from the rendering of animal bones and offal
- whey from cheese manufacturing, and other dairy products.
Common vegetable sources:
- acidulated soap stock – from the refining of vegetable oil
- bagasse – the fibrous residue remaining after sugarcane or sorghum stalks are crushed to extract their juice
- black liquor from the production of cellulose pulp using the kraft process
- bran and germ – from the milling of whole grains into refined grains
- brewer’s yeast – from ethanol fermentation
- cereal food fines – from breakfast cereal processing
- corn gluten, from corn milling
- corn steep liquor – from corn wet-milling
- distillers grains – from ethanol fermentation
- glycerol – from the production of biodiesel
- grape seed oil – recovered from leftovers of the winemaking process
- molasses – from sugar refining
- orange oil and other citrus oils – recovered from the peels of processed fruit
- pectin – recovered from the remains of processed fruit
- sawdust and bark – from the processing of logs into lumber
- soybean meal – from soybean processing
- stover – residual plant matter after harvesting of cereals
- straw – from grain harvesting
- tall oil from the production of cellulose pulp using the Kraft process
- vinasse – from the fermentation of sugar to ethanol fuel
Below please find the available services for this specific product group.
Please contact us for detailed scope of services, pricing or any additional requests.
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