Effect of different extraction conditions on phlorotannin content and antioxidant activity of extract from brown algae ( Sargassum angustifolium (

2022 ◽  
Author(s):  
Alireza Hodhodi ◽  
Aria Babakhani ◽  
Haniyeh Rostamzad
Keyword(s):  
Antioxidant Activity ◽  
Brown Algae ◽  
Phlorotannin Content ◽  
Sargassum Angustifolium

Effects of extraction conditions over the phlorotannin content and antioxidant activity of extract from brown algae Sargassum serratum (Nguyen Huu Dai 2004)

2016 ◽  
Vol 7 (1) ◽  
pp. 115-122 ◽  
Author(s):  
Vu Ngoc Boi ◽  
Dang Xuan Cuong ◽  
Phan Thi Khanh Vinh
Keyword(s):  
Antioxidant Activity ◽  
Brown Algae ◽  
Phlorotannin Content

scholarly journals Phenolic substances of brown algae and their antioxidant activity

2000 ◽  
Vol 36 (3) ◽  
pp. 289-291 ◽  
Author(s):  
I. D. Chkhikvishvili ◽  
Z. M. Ramazanov
Keyword(s):  
Antioxidant Activity ◽  
Brown Algae ◽  
Phenolic Substances

Isolation and characterization of fucoidans from five brown algae and evaluation of their antioxidant activity

2014 ◽  
Vol 13 (5) ◽  
pp. 851-856 ◽  
Author(s):  
Guiyan Qu ◽  
Xu Liu ◽  
Dongfeng Wang ◽  
Yi Yuan ◽  
Lijun Han
Keyword(s):  
Antioxidant Activity ◽  
Brown Algae ◽  
Isolation And Characterization

scholarly journals Karakteristik Kandungan Fukosantin dan Aktivitas Antioksidan Ekstrak Alga Coklat (Sargassum polycystum) pada Perlakuan Konsentrasi Pelarut Aseton dan Suhu Maserasi

2020 ◽  
Vol 8 (1) ◽  
pp. 80 ◽  
Author(s):  
Ni Kadek Eka Wati ◽  
Lutfi Suhendra ◽  
Ni Made Wartini
Keyword(s):  
Antioxidant Activity ◽  
Experimental Research ◽  
Brown Algae ◽  
Solvent Concentration ◽  
Sargassum Polycystum ◽  
Tukey Test ◽  
Two Factors

Fucoxanthin has great potential to be developed as an antioxidant. The purposes of this study were to determine the effect of acetone solvent concentration and maceration temperature on the fucoxanthin content and antioxidant activity of brown algae extract (Sargassum polycystum) and determine the best acetone solvent concentration and maceration temperature on the fucoxanthin content and antioxidant activity of brown algae extract (Sargassum polycystum) . The study was the experimental research which designed by using randomized block desin (RBD) with two factors. The first factor was solvent concentration that consists of 70, 80 and 90 percent. The second factor was maceration temperature that consists of 30±2?, 40±2? and 50±2?. The data were analyzed by analysis of varian (ANOVA) and continued with the Tukey test. The results showed that the concentration of acetone solvent was influential on the content of fucoxanthin and antioxidant activity but did not affect the yield. Maceration temperature is influential on yield, fucoxanthin content and antioxidant activity. Interactions between treatments of acetone solvent concentration and maceration temperature greatly affect the content of fucoxanthin and antioxidant activity but do not affect the yield. The treatment of acetone 80 percent solvent concentration and maceration temperature 30±2? is the best treatment to produce brown algae extract (Sargassum polycystum) with a yield of 3.24 ± 0.45 percent, fucoxanthin content 1.03 ± 0.01 g fukosantin/g and antioxidant activity 99 ± 8.49 ppm and show activity powerful antioxidant. Keywords: Sargassum polycystum, acetone, maceration, fucoxanthin, antioxidant.

Intra-thallus phlorotannin content and antioxidant activity in Phaeophyceae of temperate waters

2006 ◽  
Vol 49 (1) ◽  
Author(s):  
Solène Connan ◽  
Franck Delisle ◽  
Eric Deslandes ◽  
Erwan Ar Gall
Keyword(s):  
Antioxidant Activity ◽  
Phlorotannin Content

scholarly journals Antioxidant and antimitotic activities of sulfated polysaccharide from marine brown algae Padina tetrastromatica

2015 ◽  
Vol 7 ◽  
Author(s):  
Geena Mariya Jose ◽  
Anitha Radhakrishnan ◽  
G Muraleedhara Kurup
Keyword(s):  
Antioxidant Activity ◽  
Brown Algae ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Sulfated Polysaccharide ◽  
Sulfated Polysaccharides ◽  
Scavenging Activity ◽  
Padina Tetrastromatica ◽  
Nitric Oxide Radical

<p class="Default">Antioxidants play a central role in the prevention of carcinogenesis. The most natural compounds exhibit their protective effects by eliciting antioxidant potential. Sulfated polysaccharide was isolated from the brown algae <em>Padina tetrastromatica</em>, then purified and evaluated for its composition and <em>in vitro </em>antioxidant and antimitotic activities. Both ethanolic sulfated polysaccharide (ESPS) and ethanolic sulfated polysaccharide-column purified (ESPS-CP) exhibited considerable amount of carbohydrates (11.2% and 17.6%), sulfate (11.4% and 7.4%), fucose (5.5% and 15.7%), uronic acid (4.7% and 11.8%), xylose (0.5% and 0.03%) and sulfated polysaccharide (2.4% and 12.7%) content. The FTIR analysis and phytochemical screening also confirmed the presence of sulfated polysaccharides. In the <em>in vitro</em> antioxidant activity determination using DPPH (1-1-diphenyl 2-picryl hydrazyl) radical scavenging activity, hydroxyl radical scavenging activity, superoxide anion scavenging activity, hydrogen peroxide scavenging activity, total antioxidant activity and reducing power, ESPS showed more activity than ESPS-CP. In the case of nitric oxide radical scavenging, ESPS-CP was found to be more effective. At a concentration of 2mg/ml, both samples were potent antioxidants with significant IC<sub>50</sub> values. The antimitotic studies such as mitotic index in onion root tips and sprouting assay in green gram seeds also proved that both the extracts are able to prevent mitosis. The extrapolation of these results can find opportunities in therapeutic regiments of cancer.<strong></strong></p>

Effect of storage time on phlorotannin content and antioxidant activity of six Sargassum species from Nhatrang Bay, Vietnam

2015 ◽  
Vol 28 (1) ◽  
pp. 567-572 ◽  
Author(s):  
Dang Xuan Cuong ◽  
Vu Ngoc Boi ◽  
Tran Thi Thanh Van ◽  
Le Nhu Hau
Keyword(s):  
Antioxidant Activity ◽  
Storage Time ◽  
Phlorotannin Content

Isolation of Fucoxanthin from Brown Algae and Its Antioxidant Activity: In Vitro and 5% Fish Oil-In-Water Emulsion

2018 ◽  
Vol 95 (7) ◽  
pp. 835-843 ◽  
Author(s):  
Sabeena Farvin Koduvayur Habeebullah ◽  
Alagarsamy Surendraraj ◽  
Charlotte Jacobsen
Keyword(s):  
Antioxidant Activity ◽  
Fish Oil ◽  
Brown Algae ◽  
Water Emulsion ◽  
Oil In Water ◽  
Oil In Water Emulsion
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