title: Induction of the superoxide anion radical scavenging capacity of dried 'funori'Gloiopeltis furcata by Lactobacillus plantarum S-SU1 fermentation.
abstract: To understand the beneficial properties of edible algae obtained from the north-eastern (Sanriku) Satoumi region of Japan, the antioxidant properties of hot aqueous extract solutions (AES) obtained from 18 dried algal products were determined. The samples included 4 Ceratophyllum demersum (matsumo), 5 Undaria pinnatifida (wakame), 5 Laminaria japonica (kombu), and 2 each of Gloiopeltis furcate (funori) and G. tenax (funori). Of these products, the total phenolic content and Fe-reducing power were highest in matsumo. On the other hand, the polysaccharide content, viscosity, and superoxide anion radical (O2˙(-))-scavenging capacity were highest in funori. Lactobacillus plantarum S-SU3, isolated from the intestine of Japanese surfperch, and Lb. plantarum S-SU1, isolated from salted squid, could ferment the AES of matsumo and funori, respectively. Although the Fe-reducing power of the matsumo solution was reduced due to fermentation, the O2˙(-)-scavenging capacity of the funori solution was increased by fermentation. Furthermore, the fermented funori suspension protected Saccharomyces cerevisiae, a live cell model, against H2O2 toxicity. These results suggest that the fermented funori is a promising functional food material that is capable of protecting against reactive oxygen species.
authors.affiliation: Department of Food Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato-city, Tokyo 108-8477, Japan. kuda@kaiyodai.ac.jp.
authors.forename: Takashi
authors.initials: T
authors.lastname: Kuda
authors.forename: Maki
authors.initials: M
authors.lastname: Nemoto
authors.forename: Miho
authors.initials: M
authors.lastname: Kawahara
authors.forename: Satoshi
authors.initials: S
authors.lastname: Oshio
authors.forename: Hajime
authors.initials: H
authors.lastname: Takahashi
authors.forename: Bon
authors.initials: B
authors.lastname: Kimura
mesh_terms: D049936:Anthocerotophyta / Q000378:metabolism / Q000382:microbiology*; D005285:Fermentation; D016166:Free Radical Scavengers / Q000032:analysis / Q000378:metabolism* / Q000494:pharmacology; D006861:Hydrogen Peroxide / Q000633:toxicity; D048191:Lactiplantibacillus plantarum / Q000378:metabolism*; D000459:Phaeophyceae / Q000378:metabolism / Q000382:microbiology*; D010936:Plant Extracts / Q000032:analysis / Q000378:metabolism* / Q000494:pharmacology; D000461:Rhodophyta / Q000378:metabolism / Q000382:microbiology*; D012441:Saccharomyces cerevisiae / Q000187:drug effects; D013481:Superoxides / Q000378:metabolism*
chemical_list: D016166:Free Radical Scavengers; D010936:Plant Extracts; D013481:Superoxides; D006861:Hydrogen Peroxide