Edible seaweed Edible seaweed Edible seaweed, or sea vegetables, are algae that can be eaten and used in the preparation of food. They typically contain high amounts of fiber. They may belong to one of several groups of multicellular algae: the red algae, green algae, and brown algae. Seaweeds are also harvested or cultivated for the extraction of polysaccharides such as alginate, agar and carrageenan, gelatinous substances collectively known as hydrocolloids or phycocolloids. Hydrocolloids have attained commercial significance, especially in food production as food additives. The food industry exploits the gelling, water-retention, emulsifying and other physical properties of these hydrocolloids. Most edible
Edible Schoolyard garden programs. Others argue that "career skills grow along with plants" and that presence of a school garden serves to add to and enrich a school's curriculum. W. Steven Barnett, a professor of education, notes that while "little research exists on the efficacy of a garden-based curriculum," Flanagan presents a false choice, noting that the gardens are "integrated into the child's learning experience." The head of Samuel J. Green School in New Orleans, which also has an Edible Schoolyard, noted an improvement in eating a "healthful diet and doing well in school" among students at the school since the Edible