Seasonal variation in the chemical compositions of Akamoku Sargassum horneri harvested in Chikuzen Sea, Fukuoka [Japan] prefecture

• Published in: Aquaculture Science Vol. 57; no. 4; pp. 549 - 556
• Main Authors: Murakami, K., Hiroshima Inst. of Technology (Japan), Matoba, Y, Noda, K, Yamaguchi, Y, Fujii, T, Shinohara, N, Akimoto, T, Sugawa Katayama, Y, Katayama M
• Format: Journal Article
• Language: English; Japanese
• Published: Japanese Society for Aquaculture Science 20.12.2009
• Subjects: CHEMICAL COMPOSITION; COMPOSICION QUIMICA; COMPOSITION CHIMIQUE; Dietary fiber; DIETARY FIBRES; FIBRA DE LA DIETA; FIBRE ALIMENTAIRE; http://www.fao.org/aos/agrovoc#c_1794; http://www.fao.org/aos/agrovoc#c_24894; http://www.fao.org/aos/agrovoc#c_28386; http://www.fao.org/aos/agrovoc#c_37593; http://www.fao.org/aos/agrovoc#c_4039; http://www.fao.org/aos/agrovoc#c_4857; http://www.fao.org/aos/agrovoc#c_5754; http://www.fao.org/aos/agrovoc#c_6097; http://www.fao.org/aos/agrovoc#c_6259; JAPAN; JAPON; MINERALES; MINERALS; MINERAUX; PHAEOPHYCEAE; POLISACARIDOS; POLYHOLOSIDE; POLYSACCHARIDES; PROTEINAS; PROTEINE; PROTEINS; SARGASSUM; Sargassum horneri; SEASONAL VARIATION; Seaweed; VARIACION ESTACIONAL; VARIATION SAISONNIERE
• ISSN: 0371-4217; 2185-0194
• DOI: 10.11233/aquaculturesci.57.549

The chemical compositions of a brown alga, Akamoku, Sargassum horneri harvested at the depth of 1-2 m in ocean areas of Chikuzen Sea, Fukuoka Prefecture in Japan, were investigated. This study was intended to elucidate the relationship between the chemical components and the growth of S. horneri. Both its length and weight reached their maximum values in March or April. Differences between male and female plants by their receptacles were completely distinguishable in the middle of April. The protein content varied considerably at the growing stages of the plant. The maximum value of protein content was observed in immature plant in December. The protein content decreased in the following two months, increased in March when the plant fully matured, and thereafter decreased continuously through the rest of test period. The carbohydrate and total dietary fiber content showed differences between the male and female from middle February to May. Significant changes were not observed in lipid contents through the whole period tested. The ash and total dietary fiber content in S. horneri were similar or rather higher than those of other edible alga.