U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PubAg

Main content area

You searched for: Subject term algae Remove constraint Subject term: algae Subject term antioxidant activity Remove constraint Subject term: antioxidant activity
Start Over

Search

265  Search Results

« Previous | 1 - 20 of 265 |
Number of results to display per page

Search Results

1. Carotenoids: chemistry, sources and physiology

Author:
Ishida, B.K.; Bartley, G.E.
Source:
Guide to nutritional supplements / editor, Benjamin Caballero pp. -
Subject:
vitamin metabolism; algae; photochemistry; structure-activity relationships; hydrophobicity; tomatoes; retinol-binding protein; electrochemistry; secondary metabolites; dietary nutrient sources; nutrient transport; eukaryotic cells; isomers; storage quality; oxidative stability; intestinal absorption; antioxidant activity; vitamin A; Solanum lycopersicum var. lycopersicum; isomerization; nutrient availability; biochemical pathways; free radical scavengers; mutants; plant-based foods; chemical constituents of plants; provitamins
Handle:
10113/38184

2. N-3 fatty acid enrichment and oxidative stability of broiler chicken (A review)

Author:
H. A. Manilla; F. Husvéth
Source:
Acta alimentaria 1999 v.28 no.3 pp. 235-249
ISSN:
0139-3006
Subject:
fatty acid composition; algae; consumer preferences; Spermatophytina; broiler chickens; off flavors; chicken meat; dietary nutrient sources; omega-3 fatty acids; affordability; seed oils; storage quality; oxidative stability; fish oils; antioxidant activity; fish meal; docosahexaenoic acid; antibiotics; eicosapentaenoic acid; fish consumption; vitamin E
Abstract:
... Increasing awareness of the health benefits of n-3 fatty acids has led to studies related to the manipulation of the fatty acid composition of animal products. These fatty acids, especially eicosapentaenoic acid (EPA; C20:5n-3) and docosahexaenoic acid (DHA; C22:6n-3), are abundant in foods of marine origin. Fish consumption is, however, limited by seasonal availability, affordability and consumer ...
DOI:
10.1556/AAlim.28.1999.3.3

3. Antioxidative meroterpenoids from the brown alga Cystoseira crinita

Author:
Fisch, K.M.; Bohm, V.; Wright, A.D.; Konig, G.M.
Source:
Journal of natural products 2003 v.66 no.7 pp. 968-975
ISSN:
0163-3864
Subject:
terpenoids; algae; plant extracts; carbon; spectral analysis; Ustilago violacea; Chlorella; Bacillus megaterium; hydroquinone; protons; Escherichia coli; antifungal properties; phytochemicals; antioxidant activity; chemical structure; antioxidants; thiobarbituric acid-reactive substances; antibacterial properties; Eurotium; free radicals; Sardinia
DOI:
10.1021/np030082f
PubMed:
12880316

4. Marine natural products as novel antioxidant prototypes

Author:
Takamatsu, S.; Hodges, T.W.; Rajbhandari, I.; Gerwick, W.H.; Hamann, M.T.; Nagle, D.G.
Source:
Journal of natural products 2003 v.66 no.5 pp. 605-608
ISSN:
0163-3864
Subject:
animal products; humans; algae; phytochemicals; reactive oxygen species; plant extracts; chemical structure; secondary metabolites; prototypes; Porifera; spectral analysis; cell lines; antioxidant activity; Cyanobacteria; Jamaica
DOI:
10.1021/np0204038
PubMed:
12762791
PubMed Central:
PMC4969048

5. Two new xanthone derivatives from the algicolous marine fungus Wardomyces anomalus

Author:
Abdel-Lateff, A.; Klemke, C.; Konig, G.M.; Wright, A.D.
Source:
Journal of natural products 2003 v.66 no.5 pp. 706-708
ISSN:
0163-3864
Subject:
RNA-directed DNA polymerase; xanthone; phenols; algae; lipid peroxidation; Ulva; carbon; spectral analysis; protein-tyrosine kinases; secondary metabolites; protons; enzyme inhibition; Human immunodeficiency virus 1; hosts; marine fungi; isomers; antioxidant activity; thiobarbituric acid-reactive substances; Microascaceae
DOI:
10.1021/np020518b
PubMed:
12762814

6. Incorporation and stabilization of omega-3 fatty acids in surimi made from cod, Gadus morhua

Author:
Park, Y.; Kelleher, S.D.; McClements, D.J.; Decker, E.A.
Source:
Journal of agricultural and food chemistry 2004 v.52 no.3 pp. 597-601
ISSN:
0021-8561
Subject:
docosahexaenoic acid; algae; Gadus morhua; omega-3 fatty acids; food processing; oils; gels; strength (mechanics); antioxidant activity; oxidative stability; emulsions; color; cod (fish); oxidation; antioxidants; surimi
Abstract:
... Surimi containing omega-3 fatty acids from algal oil was prepared by the addition of oil-in-water emulsions or bulk oil. Emulsion and bulk oil were added separately to surimi to provide ~500 mg of omega-3 fatty acids per serving of surimi (85 g). Addition of the emulsion had no effect on surimi gel strength, whereas bulk oil decreased gel strength an average of 31%. All surimi treatments containin ...
DOI:
10.1021/jf034703m

7. Sea tangle supplementation lowers blood glucose and supports antioxidant systems in streptozotocin-induced diabetic rats

Author:
Lee, K.S.; Choi, Y.S.; Seo, J.S.
Source:
Journal of medicinal food 2004 v.7 no.2 pp. 130-135
ISSN:
1096-620X
Subject:
peroxides; aqueous solutions; catalase; algae; diabetes mellitus; alginates; blood glucose; plant extracts; enzyme activity; superoxide dismutase; alpha-tocopherol; glutathione peroxidase; animal models; antioxidant activity; rats; dietary supplements; vitamin A; protective effect
DOI:
10.1089/1096620041223996
PubMed:
15298757

8. Nutritional intervention with omega-3 fatty acids in a case of malignant fibrous histiocytoma of the lungs

Author:
Pardini, R.S.; Wilson, D.; Schiff, S.; Bajo, S.A.; Pierce, R.
Source:
Nutrition and cancer 2005 v.52 no.2 pp. 121-129
ISSN:
0163-5581
Subject:
sarcoma; elderly; dose response; docosahexaenoic acid; lung neoplasms; nutritional intervention; eicosapentaenoic acid; algae; histiocytosis; clinical nutrition; patients; fat intake; fish oils; omega-3 fatty acids; antioxidant activity; anticarcinogenic activity
Abstract:
... We present a case of a 78-yr-old man with malignant fibrous histiocytoma with multiple lesions in both lungs. Following diagnosis, he declined conventional chemotherapy and elected nutritional intervention by increasing intake of omega-3 fatty acids and lowering intake of omega-6 fatty acids. We estimated that he consumed 15 g of the long-chain omega-3 fatty acids eicosapentaenoic (EPA) and docosa ...
DOI:
10.1207/s15327914nc5202_2
PubMed:
16201843

9. Protective effect of Sargassum polycystum (brown alga) against acetaminophen-induced lipid peroxidation in rats

Author:
Raghavendran, H.R.B.; Sathivel, A.; Devaki, T.
Source:
Phytotherapy research 2005 v.19 no.2 pp. 113-115
ISSN:
0951-418X
Subject:
rats; peroxides; hepatotoxicity; algae; lipid peroxidation; Sargassum; acetaminophen; extracts; antioxidant activity; oxidative stress; protective effect
DOI:
10.1002/ptr.1552
PubMed:
15852486

10. Photoinactivation of Ascorbate Peroxidase in Isolated Tobacco Chloroplasts: Galdieria partita APX Maintains the Electron Flux through the Water-Water Cycle in Transplastomic Tobacco Plants

Author:
Miyake, Chikahiro; Shinzaki, Yuki; Nishioka, Minori; Horiguchi, Sayaka; Tomizawa, Ken
Source:
Plant & cell physiology 2006 v.47 no.2 pp. 200-210
ISSN:
0032-0781
Subject:
plant biochemistry; algae; ascorbate peroxidase; red light; photosystem I; Rhodophyta; hydrogen peroxide; Nicotiana tabacum; superoxide dismutase; enzyme activity; antioxidant activity; tobacco; enzyme activation; transgenes; glutathione-disulfide reductase; transgenic plants; photosystem II; nucleotide sequences; NADH or NADPH oxidoreductases; electron transport chain; chloroplasts
Abstract:
... We evaluated the H₂O₂-scavenging activity of the water-water cycle (WWC) in illuminated intact chloroplasts isolated from tobacco leaves. Illumination under conditions that limited photosynthesis [red light (>640 nm), 250 [micro]mol photons m⁻² s⁻¹ in the absence of HCO₃ ⁻] caused chloroplasts to take up O₂ and accumulate H₂O₂. Concomitant with the O₂ uptake, both ascorbate peroxidase (APX) and gl ...
DOI:
10.1093/pcp/pci235
PubMed:
16338960

11. Encapsulation of Haematococcus pluvialis using chitosan for astaxanthin stability enhancement

Author:
Kittikaiwan, P.; Powthongsook, S.; Pavasant, P.; Shotipruk, A.
Source:
Carbohydrate polymers 2007 v.70 no.4 pp. 378-385
ISSN:
0144-8617
Subject:
films (materials); storage conditions; chitosan; algae; astaxanthin; Haematococcus pluvialis; encapsulation; environmental factors; oxidative stability; degradation; antioxidant activity; light
Abstract:
... Astaxanthin is receiving commercial interest due to its use as a preferred pigment in aquaculture feeds. Its antioxidant activity is approximately 100 times higher than that of β-tocopherol, and can be used as a potential agent against cancer. Astaxanthin can easily be degraded by thermal or oxidative processes during the manufacture and storage. In this study, astaxanthin and its biological activ ...
DOI:
10.1016/j.carbpol.2007.04.021

12. Highly Brominated Mono- and Bis-phenols from the Marine Red Alga Symphyocladia latiuscula with Radical-Scavenging Activity

Author:
Duan, X.J.; Li, X.M.; Wang, B.G.
Source:
Journal of natural products 2007 v.70 no.7 pp. 1210-1213
ISSN:
0163-3864
Subject:
algae; phenols; bromination; chemical structure; spectral analysis; antioxidant activity; Rhodomelaceae
DOI:
10.1021/np070061b
PubMed:
17602526

13. Radical-scavenging activity of Aegean Sea marine algae

Author:
Nahas, R.; Abatis, D.; Anagnostopoulou, M.A.; Kefalas, P.; Vagias, C.; Roussis, V.
Source:
Food chemistry 2007 v.102 no.3 pp. 577-581
ISSN:
0308-8146
Subject:
chemiluminescence; algae; Phaeophyceae; plant extracts; free radical scavengers; edible seaweed; antioxidant activity; metabolites; Mediterranean Sea; Aegean Sea
Abstract:
... In the present work, thirteen algae from the Aegean Sea were examined for radical-scavenging activity (RSA) using the DPPH and chemiluminescence (CL) tests. Extracts of the brown alga Taonia atomaria exhibited the best RSA in comparison to the extracts of the other investigated species and approached the activity of powerful antioxidant standards. Column chromatography separation of T. atomaria ex ...
DOI:
10.1016/j.foodchem.2006.05.036

14. Antioxidative activity of (1-3), (1-6)-β-d-glucan from Saccharomyces cerevisiae grown on different media

Author:
Jaehrig, S.C.; Rohn, S.; Kroh, L.W.; Wildenauer, F.X.; Lisdat, F.; Fleischer, L.G.; Kurz, T.
Source:
Lebensmittel-Wissenschaft + Technologie 2008 v.41 no.5 pp. 868-877
ISSN:
0023-6438
Subject:
bakers yeast; fermentation; free radicals; algae; glucose; galactose; peptones; Saccharomyces cerevisiae; bioassays; wort (brewing); electron paramagnetic resonance spectroscopy; antioxidant activity; beta-glucans; culture media; antioxidants
DOI:
10.1016/j.lwt.2007.06.004

15. Effect of a glycoprotein from Hizikia fusiformis on acetaminophen-induced liver injury

Author:
Hwang, Hye-Jeong; Kim, In-Hye; Nam, Tae-Jeong
Source:
Food and chemical toxicology 2008 v.46 no.11 pp. 3475-3481
ISSN:
0278-6915
Subject:
in vivo studies; algae; nutrition-genotype interaction; plant extracts; mitogen-activated protein kinase; oxidative stress; tissue repair; glutathione; alanine transaminase; extraction; edible seaweed; glycoproteins; hepatoprotective effect; in vitro studies; antioxidant activity; ethanol; antioxidants; hepatocytes; liver; acetaminophen; hepatotoxicity
DOI:
10.1016/j.fct.2008.08.032
PubMed:
18809456

16. Bioavailability of Astaxanthin in Haematococcus Algal Extract: The Effects of Timing of Diet and Smoking Habits

Author:
Yumika OKADA; Masaharu ISHIKURA; Takashi MAOKA
Source:
Bioscience, biotechnology, and biochemistry 2009 v.73 no.9 pp. 1928-1932
ISSN:
1347-6947
Subject:
Haematococcus; absorption; algae; antioxidant activity; astaxanthin; bioavailability; biotechnology; blood serum; diet; half life; pharmacokinetics
Abstract:
... Astaxanthin is a caroteonid that possesses strong antioxidant activity. Recently, many studies on biological activity have been reported. In general, the absorption of carotenoids is affected greatly by diet and by smoking. In this report, we investigated astaxanthin pharmacokinetics after administration of Haematococcus algal extract, a source of astaxanthin, to smokers and nonsmokers before and ...
DOI:
10.1271/bbb.90078

17. Characteristics and Nutritional and Cardiovascular-Health Properties of Seaweeds

Author:
Bocanegra, Aránzazu; Bastida, Sara; Benedi, Juana; Rodenas, Sofia; Sánchez-Muniz, Francisco J.
Source:
Journal of medicinal food 2009 v.12 no.2 pp. 236-258
ISSN:
1096-620X
Subject:
nutrient content; algae; vitamins; blood pressure; health foods; energy content; edible seaweed; mineral content; dietary fiber; humans; phytochemicals; body weight; lipid metabolism; antioxidant activity; weight gain; nutrient availability; nutritive value; functional properties; polyunsaturated fatty acids; dietary minerals
DOI:
10.1089/jmf.2008.0151
PubMed:
19459725

18. Protective Effects Against H2O2-Induced Damage by Enzymatic Hydrolysates of an Edible Brown Seaweed, Sea Tangle (Laminaria japonica)

Author:
Park, Pyo-Jam; Kim, Eun-Kyung; Lee, Seung-Jae; Park, Sun-Young; Kang, Dong-Soo; Jung, Bok-Mi; Kim, Kui-Shik; Je, Jae-Young; Ahn, Chang-Bum
Source:
Journal of medicinal food 2009 v.12 no.1 pp. 159-166
ISSN:
1096-620X
Subject:
inhibitory concentration 50; DNA damage; catalase; algae; hydrogen peroxide; cytotoxicity; glutathione transferase; flow cytometry; free radical scavengers; glutathione peroxidase; cultured cells; enzymatic hydrolysis; antioxidant activity; Laminaria; in vitro studies; enzyme activity; hydrolysates; oxidative stress; protective effect
DOI:
10.1089/jmf.2007.0675
PubMed:
19298210

19. Purification, Structural Characterization, and Antioxidant Activity of Antioxidant Substance from the Red Seaweed Gloiopeltis tenax

Author:
Lim, Byung-Lak; Ryu, Il-Hwan
Source:
Journal of medicinal food 2009 v.12 no.2 pp. 442-451
ISSN:
1096-620X
Subject:
Gloiopeltis; nuclear magnetic resonance spectroscopy; sulfates; algae; galactose; chemical reactions; medicinal plants; plant extracts; mannose; chemical structure; free radical scavengers; beta-carotene; dosage; Fourier transform infrared spectroscopy; medicinal properties; antioxidant activity; fucose; ascorbic acid
DOI:
10.1089/jmf.2007.0688
PubMed:
19459750

20. Synthesized oversulphated, acetylated and benzoylated derivatives of fucoidan extracted from Laminaria japonica and their potential antioxidant activity in vitro

Author:
Wang, Jing; Liu, Li; Zhang, Quanbin; Zhang, Zhongshan; Qi, Huimin; Li, Pengcheng
Source:
Food chemistry 2009 v.114 no.4 pp. 1285-1290
ISSN:
0308-8146
Subject:
chemical composition; sulfates; algae; fucoidan; plant extracts; chemical analysis; free radical scavengers; acetylation; Laminaria; in vitro studies; antioxidant activity
Abstract:
... Three sulphated polysaccharide derivatives (oversulphated, acetylated and benzoylated fucoidan) were successfully synthesized, and their antioxidant activities were investigated employing various established in vitro systems. A novel catalyst N-bromosuccinimide (NBS) was used in acetylation and benzoylation reaction, and the degree of acetylation was evaluated using IR and NMR spectra. Both fucoid ...
DOI:
10.1016/j.foodchem.2008.10.082