期刊
MARINE DRUGS
卷 16, 期 8, 页码 -出版社
MDPI
DOI: 10.3390/md16080255
关键词
anti-oxidant; fucoxanthin; Ishimozuku; Sphaerotrichia divaricata
资金
- Japan Society for the Promotion of Science (JSPS) from the Ministry of Education, Culture, Sports, Science and Technology of Japan [26850076]
- Grants-in-Aid for Scientific Research [26850076] Funding Source: KAKEN
Fucoxanthin is a specific carotenoid in brown seaweeds with remarkable biological properties. Ishimozuku (Sphaerotrichia divaricata), an edible brown alga from northern Japan, has morphology that is almost identical to that of Okinawa-mozuku (Cladosiphon okamuranus) harvested off Okinawa, Japan. However, because of Ishimozuku's lower availability compared to Okinawa-mozuku, the contents of its nutrient compounds remain unclear. The present study analyzed fucoxanthin and anti-oxidant compound contents of Ishimozuku harvested off the northern coast of Japan from 2014 to 2016. First, 80% ethanol extract solutions were prepared from Ishimozuku harvested from several west coast areas of Aomori, Japan. Then, polyphenol content was analyzed using the Folin-Ciocalteu method. Then anti-oxidative effects were analyzed by their 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity and hydrogen peroxide scavenging activity. Furthermore, fucoxanthin contents were measured using high performance liquid chromatography (HPLC) analysis. Fucoxanthin contents of Ishimozuku were 105.6-1148.5 mu g/g dry weight. Total polyphenol contents of Ishimozuku were of 0.296-0.958 mg/g dry weight: higher than Okinawa-mozuku (0.082 +/- 0.011 mg/g dry weight). The anti-oxidation effects of Ishimozuku accompanied the polyphenol content. These results suggest that Ishimozuku contains various anti-oxidant components and has high potential to provide the promotion of human health.
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