Fish solubles are a coproduct of the fish oil and canning industries. Fish solubles are high in water-soluble vitamins and are available in condensed or dried varieties.
Guar meal is a coproduct from the production of guar gum. It's a mixture of germs and hulls and is a protein-rich ingredient for aquafeed, animal feed and pet foods.
Lipid-extracted algae is a co-product of the production of biofuel from algae. Once the fats are removed, the biomass that is left still has a high protein level, making it an ideal solution for pet foods, aquafeed and animal feed.
Single-cell protein is derived from microbial single-cell proteins, often used to reduce biological oxidation demands of streams leaving various agricultural processing plants. Single-cell protein has a high nucleic acid content and is a good alternative ingredient for aquafeed diets.
Yeast is a coproduct from the brewing of beer. The yeast is removed after the brewing process and made inactive by means of organic acids. Yeast is high in nucleic acids and can be used as a replacement for fish meal in aquafeed diets for salmonids and sea bass.