نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه شیلات، دانشکده علوم دریایی، دانشگاه تربیت مدرس، نور، ایران.
2 گروه شیلات، دانشکده منابع طبیعی، دانشگاه گیلان، صومعه سرا، ایران.
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
The antioxidant extract of four seaweeds Sargassum angustifolium, Padina astraulis, Cystoseria merica, Colopomenia sinuosa was prepared by ultrasonic methods with three solvents (water, water/ethanol and ethanol) under 25 kHz, 400W conditions. In this study, aquatic extract of S. angustifolium had the highest phenolic content (P<0.05). The amount of phenolic compounds in water/ethanol extracts of S. angustifolium were significantly higher than other seaweed extracts. (P<0.05). The aqueous extract of C. merica had the highest amount of DPPH radical scavenging relative to the aqueous extracts of other seaweeds (P<0.05). The aqueous/ethanolic extracts of S. angustifolium had significantly higher radical scavenging than other algae/ethanol extracts (P<0.05). Also, the anti-radical properties of Ethanol extract of C. merica was higher than ethanloic extract of other algae (P<0.05). The water extracts in all species had more phenolic contents, but in DPPH test, water/ethanol extracts of S. angustifolium had highest radical scavenging activity. The result show that S. angustifolium and C. merica were suitable for antioxidants extraction.
کلیدواژهها [English]