Because consumers look at color to gauge quality of catfish fillets, the authors developed a digital photography measurement method to assess yellowness.
KnipBio, a Massachusetts-based biotechnology startup founded in 2013, is refining the manufacturing process for a promising aquaculture feed ingredient that may one day form the foundation of the food that farmed fish eat.
Carotenoids are important pigments that contribute characteristic quality criteria for the marketing of aquaculture products. Aquatic animals cannot biosynthesize carotenoids de novo, hence their inclusion in aquafeeds is important because they are associated with various metabolic functions.
Dietary carotenoids maintain optimal pigmentation and health benefits in cultured aquatic animals. Researchers consider astaxanthin an essential nutrient.
The levels of carotenoids in commercial shrimp feeds are generally insufficient to reach the physiological levels needed for critical bioactive functions.