Abstract
Sterile Ulva, a green alga has the potential to grow stably, and is expected to be an efficient resource of functional food containing various nutrients such as proteins and sulfur amino acids. Ulva lactuca was isolated from the“Marine Park” in Yokohama, and its growth rate (g-dry/m2·d) was evaluated using a model reactor at the surface of the sea. In these experiments, the growth rate of Ulva lactuca was recorded to be approximately 20 g-dry/m2·d which is estimated to be 10 times greater than rice yield in paddy field. Based on these data, we newly designed a float production system. D-cysteinolic acid, which was contained in Ulva lactuca as major sulfur amino acid, showed both activities of active oxygen scavenging and triglyceride reduction. Hence, the facility using enriched deep seawater has a potential for the production of valuable resource to prevent diseases.
