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| Algae | Ascorbic acid |
| Bacteria | Bakery waste |
| Brewer's spent grain | Brewer's yeast |
| Cellulose | Fats |
| Food waste | Grain distiller's by-products |
| Leaf protein concentrate and grass juice | Malt culms malt sprouts malt coombs |
| Manure | Minerals |
| Molasses distiller's by-products | Molasses/Urea blocks |
| Nonprotein nitrogen | Paper |
| Pulping by-products | Seaweed |
| Spent hops | Treated wood |
| Untreated wood | Woodand wood by-products |
| Wood sugar and wood molasses |
