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You searched for: Publication Year 2005 Remove constraint Publication Year: 2005 Subject term antioxidant activity Remove constraint Subject term: antioxidant activity
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1. 2004 sivb congress symposium proceedings ““thinking outside the cell””: optimized chemodiversity in protoplast-derived lines of st. john's wort (hypericum perforatum l)

Author:
PAN Z. G.; LIU C. Z.; MURCH S. J.; SAXENA P. K.
Source:
In vitro cellular & developmental biology 2005 v.41 no.3 pp. 226-231
ISSN:
1054-5476
Subject:
Hypericum perforatum; antioxidant activity; benzyladenine; callus; cell division; culture media; genetic variation; genotype; germplasm; glucose; hypocotyls; naphthaleneacetic acid; organogenesis; phytopharmaceuticals; plantlets; protoplasts; salts; seedlings; shoots; somatic hybridization; thidiazuron
Abstract:
... A procedure for protoplast isolation and plant regeneration of St. John's wort has been developed to utilize cell-to-cell variability for optimum production of valuable medicinal compounds. Calluses, induced from hypocotyl segments of St. John's wort seedlings, were used for protoplast isolation, induction of sustained cell division, and ultimately, plant regeneration. Callus-isolated protoplasts ...
DOI:
10.1079/IVP2004635

2. Activity and concentration of polyphenolic antioxidants in apple juice. 3. Stability during storage

Author:
Sluis, A.A. van der; Dekker, M.; Boekel, M.A.J.S. van
Source:
Journal of agricultural and food chemistry 2005 v.53 no.4 pp. 1073-1080
ISSN:
0021-8561
Subject:
apple juice; polyphenols; antioxidants; quercetin; anthocyanins; phloridzin; chlorogenic acid; epicatechin; antioxidant activity; shelf life; food storage; oxygen; storage temperature
Abstract:
... Kinetic data are reported describing the stability of various classes of polyphenolic antioxidants in an apple juice enriched in these compounds as a function of storage temperature and oxygen concentration. The most thermally sensitive compounds were the various quercetin glycosides and epicatechin, whereas phloridzin and chlorogenic acid were more stable. The quercetin glycosides showed differen ...
DOI:
10.1021/jf040270r

3. Anthocyanin antioxidant activity and partition behavior in whey protein emulsion

Author:
Viljanen, K.; Kylli, P.; Hubbermann, E.M.; Schwarz, K.; Heinonen, M.
Source:
Journal of agricultural and food chemistry 2005 v.53 no.6 pp. 2022-2027
ISSN:
0021-8561
Subject:
anthocyanins; whey protein; raspberries; food chemistry; rapeseed oil; emulsifiers; black currants; emulsions; oxidation; Vaccinium vitis-idaea; antioxidant activity
Abstract:
... The antioxidant activities of anthocyanins and anthocyanin fractions isolated from blackcurrants, raspberries, and lingonberries were investigated in whey protein-stabilized emulsion. The extent of protein oxidation was measured by determining the loss of tryptophan fluorescence and formation of protein carbonyl compounds and that of lipid oxidation by conjugated diene hydroperoxides and hexanal a ...
DOI:
10.1021/jf047975d

4. Anthocyanins, flavonols, and free radical scavenging activity of Chinese bayberry (Myrica rubra) extracts and their color properties and stability

Author:
Bao, J.; Cai, Y.; Sun, M.; Wang, G.; Corke, H.
Source:
Journal of agricultural and food chemistry 2005 v.53 no.6 pp. 2327-2332
ISSN:
0021-8561
Subject:
Myrica; small fruits; fruit composition; anthocyanins; flavonols; antioxidant activity; free radicals; plant extracts; color
Abstract:
... Characterization of anthocyanins and flavonols and radical scavenging activity assays of extracts from four Chinese bayberry (Myrica rubra) varieties with different fruit colors were carried out. One dominant anthocyanin and three major flavonols were isolated by HPLC, and cyanidin-3-O-glucoside and two of three flavonols, myricetin and quercetin-3-O-rutinoside, were identified by cochromatography ...
DOI:
10.1021/jf048312z

5. Anti-amylase, anti-glucosidase and anti-angiotensin I-converting ezyme potential of selected foods

Author:
McCue, P.; Kwon, Y.I.; Shetty, K.
Source:
Journal of food biochemistry 2005 v.29 no.3 pp. 278-294
ISSN:
0145-8884
Subject:
hyperglycemia; postprandial state; plant-based foods; glycemic effect; alpha-amylase; alpha-glucosidase; angiotensin I; enzyme inhibitors; enzyme inhibition; phenolic compounds; traditional foods; phytochemicals; antioxidant activity; United States; Asia
Abstract:
... alpha-Amylase and alpha-glucosidase have been targeted as potential avenues for modulation of postprandial hyperglycemia through mild inhibition of the enzymatic breakdown of complex carbohydrates to decrease meal-derived glucose absorption. Water-soluble extracts with optimized phenolic content of selected American and Asian foods were investigated for inhibitory activity against alpha-amylase an ...
DOI:
10.1111/j.1745-4514.2005.00020.x

6. Anti-inflammatory effects of magnolol and honokiol are mediated through inhibition of the downstream pathway of MEKK-1 in NF-kappaB activation signaling

Author:
Lee, J.; Jung, E.; Park, J.; Jung, K.; Lee, S.; Hong, S.; Park, E.; Kim, J.; Park, S.
Source:
Planta medica 2005 v.71 no.4 pp. 338-343
ISSN:
0032-0943
Subject:
Magnolia obovata; phytochemicals; medicinal plants; biphenyl; lignans; anti-inflammatory activity; antioxidant activity; enzyme inhibition; signal transduction; interleukin-8; tumor necrosis factors; prostaglandin synthase; enzyme activity; Propionibacterium acnes; humans; cultured cells
DOI:
10.1055/s-2005-864100
PubMed:
15856410

7. Antibacterial and antioxidant activities of essential oils isolated from Thymbra capitata L. (Cav.) and Origanum vulgare L

Author:
Faleiro, L.; Miguel, G.; Gomes, S.; Costa, L.; Venancio, F.; Teixeira, A.; Figueiredo, A.C.; Barroso, J.G.; Pedro, L.G.
Source:
Journal of agricultural and food chemistry 2005 v.53 no.21 pp. 8162-8168
ISSN:
0021-8561
Subject:
Origanum vulgare; marjoram; Thymbra; essential oils; antibacterial properties; food pathogens; Listeria monocytogenes; food preservatives; antioxidant activity; antioxidants
Abstract:
... Antilisterial activities of Thymbra capitata and Origanum vulgare essential oils were tested against 41 strains of Listeria monocytogenes. The oil of T. capitata was mainly constituted by one component, carvacrol (79%), whereas for O. vulgare three components constituted 70% of the oil, namely, thymol (33%), gamma-terpinene (26%), and p-cymene (11%). T. capitata essential oil had a significantly h ...
DOI:
10.1021/jf0510079

8. Antidiabetic effect of Anacardium occidentale stem-bark in fructose-diabetic rats

Author:
Olatunji, L.A.; Okwusidi, J.I.; Soladoye, A.O.
Source:
Pharmaceutical biology 2005 v.43 no.7 pp. 589-593
ISSN:
1388-0209
Subject:
Anacardium occidentale; nut trees; fruit trees; medicinal plants; stems; bark; extraction; methanol; plant extracts; phytochemicals; glycemic effect; antioxidants; antioxidant activity; cholesteremic effect; rats; oxidative stress; carbohydrate loading; fructose; noninsulin-dependent diabetes mellitus; lipid peroxidation; oral administration; glucose tolerance; blood lipids; triacylglycerols; cholesterol; high density lipoprotein; malondialdehyde; urea; creatinine
DOI:
10.1080/13880200500301712

9. Antimicrobial and Antioxidant Potentials of Essential Oil and Acetone Extract of Myristica fragrans Houtt. (Aril Part)

Author:
Guridip Singh; P. Marimuthu; Carola S. de Heluani; C. Catalan
Source:
Journal of food science 2005 v.70 no.2 pp. M141
ISSN:
0022-1147
Subject:
essential oils; beta-phellandrene; palmitic acid; acetone; Fusarium graminearum; safrole; linoleic acid; Myristica fragrans; sabinene; spectroscopy; monitoring; butylated hydroxyanisole; thiobarbituric acid; antioxidant activity; antioxidants; butylated hydroxytoluene; gamma-terpinene; rapeseed oil; gas chromatography; bacteria; fungi
Abstract:
... The antifungal, antibacterial, and antioxidant potentials of essential oil and acetone extract were carried out by different techniques. In poison food medium method, the essential oil showed complete zones of inhibition against Fusarium graminearum at the all tested doses. For other tested fungi and bacteria, they gave good to moderate zone inhibition. The antioxidant activity was evaluated by me ...
DOI:
10.1111/j.1365-2621.2005.tb07105.x

10. Antimutagenic Properties of Green Tea

Author:
Bunkova, R.; Marova, I.; Nemec, M.
Source:
Plant foods for human nutrition 2005 v.60 no.1 pp. 25-29
ISSN:
0921-9668
Subject:
green tea; antioxidant activity; antimutagenic activity
DOI:
10.1007/s11130-005-2539-7
PubMed:
15898356

11. Antioxidant Defenses in Fish: Biotic and Abiotic Factors

Author:
Rosa M. Martínez-Álvarez; Amalia E. Morales; Ana Sanz
Source:
Reviews in fish biology and fisheries 2005 v.15 no.1-2 pp. 75-88
ISSN:
0960-3166
Subject:
antioxidant activity; antioxidants; environmental factors; feeding behavior; fish; fish culture; oxygen; phylogeny; physiology; temperature; xenobiotics
Abstract:
... Oxygen in its molecular state O₂, is essential for many metabolic processes that are vital to aerobic life. Aerobic organisms cannot exist without oxygen, which nevertheless is inherently dangerous to their lives. Like all aerobic organisms, fish are also susceptible to the effects of reactive oxygen and have inherent and effective antioxidant defenses that are well described in the literature. Th ...
DOI:
10.1007/s11160-005-7846-4

12. Antioxidant Potential of Pea Beans (Phaseolus vulgaris L.)

Author:
Terrence Madhujith And; Fereidoon Shahidi
Source:
Journal of food science 2005 v.70 no.1 pp. S85
ISSN:
0022-1147
Subject:
Phaseolus vulgaris; acetone; antioxidant activity; black beans; catechin; cholesterol; hulls; hydrogen peroxide; hydroxyl radicals; low density lipoprotein; oxidation; peas; seed extracts
Abstract:
... Four bean varieties (Phaseolus vulgaris L.) (white kidney, red pinto, Swedish brown, and black kidney) and their hull fractions were extracted with 80% acetone and evaluated for their phenolic contents and antiradical activities. Total phenolic content of bean hulls and whole seed extracts ranged from 6.7 to 270 and 4.9 to 93.6 mg/g extract as catechin equivalents, respectively. Trolox equivalent ...
DOI:
10.1111/j.1365-2621.2005.tb09071.x

13. Antioxidant activities of black and yellow soybeans against low density lipoprotein oxidation

Author:
Takahashi, R.; Ohmori, R.; Kiyose, C.; Momiyama, Y.; Ohsuzu, F.; Kondo, K.
Source:
Journal of agricultural and food chemistry 2005 v.53 no.11 pp. 4578-4582
ISSN:
0021-8561
Subject:
anthocyanins; polyphenols; testa; beta-glucosidase; soybeans; cotyledons; low density lipoprotein; enzymatic hydrolysis; oxidation; antioxidant activity; antioxidants
Abstract:
... Several studies have demonstrated that the daily intakes of soy foods were associated with a reduced cardiovascular risk. The aim of our study was to investigate the inhibitory effect of black soybeans on low density lipoprotein (LDL) oxidation in comparison to yellow soybeans. The extract from black soybean had a longer LDL oxidation lag time than that from yellow soybean (205 +/- 16 and 65 +/- 3 ...
DOI:
10.1021/jf048062m

14. Antioxidant activities of organic grape, pomace, juice, must, wine and their correlation with phenolic content

Author:
Yildirim, H.K.; Akcay, Y.D.; Guvenc, U.; Altindisli, A.; Sozmen, E.Y.
Source:
International journal of food science & technology 2005 v.40 no.2 pp. 133-142
ISSN:
0950-5423
Subject:
phenols; wine quality; wine grapes; lipid peroxidation; principal component analysis; grape pomace; varieties; low density lipoprotein; food composition; antioxidant activity; organic foods; red wines; antioxidants; grape must
DOI:
10.1111/j.1365-2621.2004.00921.x

15. Antioxidant activities of phenolic acids on ultraviolet radiation-induced erythrocyte and low density lipoprotein oxidation

Author:
Hsieh, C.L.; Yen, G.C.; Chen, H.Y.
Source:
Journal of agricultural and food chemistry 2005 v.53 no.15 pp. 6151-6155
ISSN:
0021-8561
Subject:
gallic acid; protocatechuic acid; caffeic acid; humans; erythrocytes; low density lipoprotein; oxidation; medicinal properties; antioxidant activity; ultraviolet radiation; ferulic acid; oxidative stress; protective effect
Abstract:
... The exposure of mammalian cells to UV light induces various deleterious responses. Some of the major harmful effects are DNA damage, cell membrane peroxidation, systemic immune suppression, and aging acceleration. Reactive oxygen species and free radicals are believed to be largely responsible for some of the deleterious effects of UV upon cells. Typical administration of antioxidants has recently ...
DOI:
10.1021/jf050707a

16. Antioxidant activity of Glossogyne tenuifolia

Author:
Wu, M.J.; Huang, C.L.; Lian, T.W.; Kou, M.C.; Wang, L.
Source:
Journal of agricultural and food chemistry 2005 v.53 no.16 pp. 6305-6312
ISSN:
0021-8561
Subject:
humans; free radicals; reactive oxygen species; medicinal properties; medicinal plants; plant extracts; neutrophils; low density lipoprotein; luteolin; free radical scavengers; oxidation; Asteraceae; antioxidant activity
Abstract:
... Glossogyne tenuifolia is a native traditional anti-inflammatory herb in Taiwan. It has previously been shown that the ethanol extract of G. tenuifolia (GT) inhibited the LPS-induced inflammatory mediator release from murine macrophage cell line and human whole blood. In the present work, the ethanol extracts of G. tenuifolia and its major constituent, luteolin-7-glucoside, were shown to be scaveng ...
DOI:
10.1021/jf050511a

17. Antioxidant activity of Myristica malabarica extracts and their constituents

Author:
Patro, B.S.; Bauri, A.K.; Mishra, S.; Chattopadhyay, S.
Source:
Journal of agricultural and food chemistry 2005 v.53 no.17 pp. 6912-6918
ISSN:
0021-8561
Subject:
free radicals; lipid peroxidation; medicinal plants; plant extracts; free radical scavengers; dried fruit; Myristica; antioxidant activity; spices; herbal medicines
Abstract:
... The 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay of the ether, methanol, and aqueous extracts of the spice Myristica malabarica (rampatri) revealed the methanol extract to possess the best antioxidant activity. Column chromatography of the methanol extract led to the isolation of a new 2-acylresorcinol and four known diarylnonanoids of which the diarylnonanoid, malabaricone C, showed the maximum DPP ...
DOI:
10.1021/jf050861x

18. Antioxidant activity of citrus limonoids, flavonoids, and coumarins

Author:
Yu, J.; Wang, L.; Walzem, R.L.; Miller, E.G.; Pike, L.M.; Patil, B.S.
Source:
Journal of agricultural and food chemistry 2005 v.53 no.6 pp. 2009-2014
ISSN:
0021-8561
Subject:
grapefruits; limonoids; flavonoids; coumarins; antioxidant activity; oxidation; low density lipoprotein; free radicals; hamsters; assays; free radical scavengers
Abstract:
... A variety of in vitro models such as beta-carotene-linoleic acid, 1,1-diphenyl-2-picryl hydrazyl (DPPH), superoxide, and hamster low-density lipoprotein (LDL) were used to measure the antioxidant activity of 11 citrus bioactive compounds. The compounds tested included two limonoids, limonin (Lim) and limonin 17-beta-D-glucopyranoside (LG); eight flavonoids, apigenin (Api), scutellarein (Scu), kaem ...
DOI:
10.1021/jf0484632

19. Antioxidant activity of commercial soft and hard wheat (Triticum aestivum L.) as affected by gastric pH conditions

Author:
Liyana-Pathirana, C.M.; Shahidi, F.
Source:
Journal of agricultural and food chemistry 2005 v.53 no.7 pp. 2433-2440
ISSN:
0021-8561
Subject:
acidity; soft white wheat; free radicals; hard white wheat; gastric acid; free radical scavengers; pH; in vitro studies; antioxidant activity; phenolic compounds
Abstract:
... Phenolic compounds from soft and hard wheat and their milling fractions were extracted into distilled deionized water, and their in vitro antioxidant activities were evaluated. Wheat samples were used as such (nontreated) or subjected to pH adjustment (treated) in order to simulate gastrointestinal pH conditions. The total phenolic content (TPC) was determined using Folin-Ciocalteu's procedure. Th ...
DOI:
10.1021/jf049320i

20. Antioxidant activity of different molecular weight sulfated polysaccharides from Ulva pertusa Kjellm (Chlorophyta)

Author:
Qi, Huimin; Zhao, Tingting; Zhang, Quanbin; Li, Zhien; Zhao, Zengqin; Xing, Ronge
Source:
Journal of applied phycology 2005 v.17 no.6 pp. 527-534
ISSN:
0921-8971
Subject:
Ulva; antioxidant activity; free radical scavengers; gel chromatography; hydrogen peroxide; hydroxyl radicals; inhibitory concentration 50; molecular weight; polysaccharides; superoxide anion
Abstract:
... Polysaccharides extracted from Ulva pertusa Kjellm (Chlorophyta) are a group of sulfated heteropolysaccharides, the ulvans. In this study, different molecular weight ulvans were prepared by H₂O₂ degradation and their antioxidant activities investigated including superoxide and hydroxyl radical scavenging activity, reducing power and metal chelating ability. The molecular weights of natural and deg ...
DOI:
10.1007/s10811-005-9003-9

21. Antioxidant activity of enzymatic extracts from a brown seaweed Ecklonia cava by electron spin resonance spectrometry and comet assay

Author:
Heo, S.J.; Park, P.J.; Park, E.J.; Kim, S.K.; Jeon, Y.J.
Source:
European food research & technology 2005 v.221 no.1-2 pp. 41-47
ISSN:
1438-2377
Subject:
glycosidases; DNA damage; free radicals; Laminariales; hydrogen peroxide; plant extracts; free radical scavengers; enzymatic hydrolysis; electron paramagnetic resonance spectroscopy; edible seaweed; antioxidant activity; ascorbic acid; South Korea
DOI:
10.1007/s00217-005-1187-3

22. Antioxidant activity of ethanolic extracts from several asparagus cultivars

Author:
Rodriguez, R.; Jaramillo, S.; Rodriguez, G.; Espejo, J.A.; Guillen, R.; Fernandez-Bolanos, J.; Heredia, A.; Jimenez, A.
Source:
Journal of agricultural and food chemistry 2005 v.53 no.13 pp. 5212-5217
ISSN:
0021-8561
Subject:
functional foods; cultivars; Asparagus officinalis; phenols; food processing wastes; plant extracts; asparagus spears; extraction; antioxidant activity; ethanol; antioxidants
Abstract:
... Three different methods (antiradical activity, inhibition of primary oxidation, and ferric reducing power) have been used to evaluate the antioxidant activity of eight different asparagus cultivars and byproducts: white and green asparagus from Alcala del Rio (Guadalquivir Valley, Seville) and American hybrids, native spears, and their byproducts from Huetor-Tajar (Vega de Granada). The correlatio ...
DOI:
10.1021/jf050338i

23. Antioxidant activity of extract and a new isolated dioxaspiran derivative of Tripleurospermum disciforme

Author:
Souri, E.; Sarkhail, P.; Kaymanesh, P.; Amini, M.; Farsam, H.
Source:
Pharmaceutical biology 2005 v.43 no.7 pp. 620-623
ISSN:
1388-0209
Subject:
indigenous species; Tripleurospermum; perennials; biennials; medicinal plants; herbal medicines; flowers; extraction; chloroform; hexane; ethanol; methanol; water; plant extracts; phytochemicals; antioxidants; polyphenols; fractionation; chemical analysis; chemical structure; antioxidant activity; free radicals; conjugated linoleic acid; lipid peroxidation
DOI:
10.1080/13880200500302009

24. Antioxidant activity of sugar-tolerant yeast Zygosaccharomyces rouxii

Author:
Naylin, N.; Taing, O.; Hashinaga, F.; Toshima, Y.
Source:
Food biotechnology 2005 v.19 no.2 pp. 107-120
ISSN:
0890-5436
Subject:
health foods; culture media; sodium chloride; glucose; salt concentration; Zygosaccharomyces; starter cultures; salt stress; salt tolerance; serotypes; fermentation; bioprocessing; novel foods; antioxidants; antioxidant activity; free radicals; yeasts; pH; biosynthesis; linoleic acid; phenolic compounds
Abstract:
... Functional foods have been increasingly popular in Japan and are widely claimed to be beneficial for health. Among many kinds of such food, one distinct type is fermented food employing osmophilic or osmo-tolerant yeasts under high concentration of salt or sugar. We are the first to investigate the antioxidant activities of a strain of sugar-tolerant yeast isolated from high-sugar fermented food. ...
DOI:
10.1081/FBT-200063435

25. Antioxidant activity of the flavonoid hesperidin in chemical and biological systems

Author:
Wilmsen, P.K.; Spada, D.S.; Salvador, M.
Source:
Journal of agricultural and food chemistry 2005 v.53 no.12 pp. 4757-4761
ISSN:
0021-8561
Subject:
free radicals; catalase; hydrogen peroxide; superoxide dismutase; Saccharomyces cerevisiae; bioassays; free radical scavengers; hesperidin; mutants; paraquat; antioxidant activity; enzyme activity; oxidative stress
Abstract:
... The antioxidant hesperidin, a major flavonoid in sweet orange and lemon, was evaluated using chemical and biological systems. The chemical assay evaluates the hesperidin capacity to sequester 1,1-diphenyl-2-picrylhydrazyl (DPPH(.)). Biological studies were done using the eukaryotic cells of superoxide-dismutase proficient and deficient strains of Saccharomyces cerevisiae treated with hesperidin an ...
DOI:
10.1021/jf0502000

26. Antioxidant activity of the main phenolic compounds isolated from hot pepper fruit (Capsicum annuum L.)

Author:
Materska, M.; Perucka, I.
Source:
Journal of agricultural and food chemistry 2005 v.53 no.5 pp. 1750-1756
ISSN:
0021-8561
Subject:
hot peppers; cultivars; Capsicum annuum; capsaicin; high performance liquid chromatography; maturity stage; fruit composition; flavonoids; antioxidant activity; antioxidants; phenolic compounds
Abstract:
... Four cultivars (Bronowicka Ostra, Cyklon, Tornado, and Tajfun) of pepper fruit Capsicum annuum L. were studied for phenolics contents and antioxidant activity. Two fractions of phenolics, flavonoids (with phenolic acids) and capsaicinoids, were isolated from the pericarp of pepper fruit at two growth stages (green and red) and were studied for their antioxidant capacity. Both fractions from red fr ...
DOI:
10.1021/jf035331k

27. Antioxidant activity of various teas against free radicals and LDL oxidation

Author:
Ohmori, R.; Iwamoto, T.; Takeo, T.; Unno, T.; Itakura, H.; Kondo, K.
Source:
Lipids 2005 v.40 no.8 pp. 849-853
ISSN:
0024-4201
Subject:
Camellia sinensis; Eucommia ulmoides; Gymnema sylvestre; Artemisia indica var. maximowiczii; antioxidant activity; free radicals; low density lipoprotein
DOI:
10.1007/s11745-005-1447-4
PubMed:
16296404

28. Antioxidant activity studies on selected Sideritis species native to Turkey

Author:
Guvenc, A.; Houghton, P.J.; Duman, H.; Coskun, M.; Sahin, P.
Source:
Pharmaceutical biology 2005 v.43 no.2 pp. 173-177
ISSN:
1388-0209
Subject:
Sideritis; herbal tea; medicinal plants; aerial parts; plant extracts; antioxidant activity; Turkey (country); Mediterranean region
DOI:
10.1080/13880200590919528

29. Antioxidant and antimycobacterial activities of Tabernaemontana catharinensis extracts obtained by supercritical CO2 + cosolvent

Author:
Pereira, C.G.; Leal, P.F.; Sato, D.N.; Meireles, M.A.A.
Source:
Journal of medicinal food 2005 v.8 no.4 pp. 533-538
ISSN:
1096-620X
Subject:
antioxidant activity; Mycobacterium; antimicrobial properties; Tabernaemontana; antioxidants; yields; carbon dioxide; plant extracts; solvents; supercritical fluid extraction
DOI:
10.1089/jmf.2005.8.533
PubMed:
16379568

30. Antioxidant and antiproliferative activities of spirulina and chlorella water extracts

Author:
Wu, L.C.; Ho, J.A.A.; Shieh, M.C.; Lu, I.W.
Source:
Journal of agricultural and food chemistry 2005 v.53 no.10 pp. 4207-4212
ISSN:
0021-8561
Subject:
Spirulina maxima; Chlorella vulgaris; microalgae; extracts; antioxidants; phenolic compounds; antioxidant activity; protective effect; cell proliferation; apoptosis; cell lines; liver neoplasms; humans
Abstract:
... Liver fibrosis is a chronic liver disease that will further develop to cirrhosis if severe damage continues to form. A potential treatment for liver fibrosis is to inhibit activated hepatic stellate cell (HSC) proliferation and, subsequently, to induce HSC apoptosis. It has been reported that antioxidants are able to inhibit the proliferation of HSCs. In this study, the aqueous extract of spirulin ...
DOI:
10.1021/jf0479517

31. Antioxidant and cytotoxic isoprenylated coumarins from Mammea americana

Author:
Yang, H.; Protiva, P.; Gil, R.R.; Jiang, B.; Baggett, S.; Basile, M.J.; Reynertson, K.A.; Weinstein, I.B.; Kennelly, E.J.
Source:
Planta medica 2005 v.71 no.9 pp. 852-860
ISSN:
0032-0943
Subject:
humans; phytochemicals; Clusiaceae; cytotoxicity; plant extracts; Mammea americana; cultured cells; coumarins; spectral analysis; antioxidant activity; chemical structure; stereochemistry; anticarcinogenic activity
DOI:
10.1055/s-2005-871257
PubMed:
16206041

32. Antioxidant and free radical scavenging activities of some leafy vegetables

Author:
Monika Bajpai; Alka Mishra; Dhan Prakash
Source:
International journal of food sciences and nutrition 2005 v.56 no.7 pp. 473-481
ISSN:
1465-3478
Subject:
gallic acid; nutrient content; food analysis; Coriandrum sativum; free radicals; spinach; cilantro; phenols; caffeic acid; seeds; Spinacia oleracea; Trigonella foenum-graecum; leaves; fenugreek; chlorogenic acid; antioxidant activity; ferulic acid; antioxidants; Trigonella corniculata
Abstract:
... Some leafy vegetables were studied for their nutritional composition, antioxidant and free radical scavenging activities. The aerial parts of Coriandrum sativum, Spinacia oleracea, Trigonella corniculata and Trigonella foenum-graecum showed lower inhibitory concentration values (4.1–7.9 mg/ml), efficiency concentration values (178–321 mg/mg DPPH) and higher values of anti-radical power (0.31–0.51) ...
DOI:
10.1080/09637480500524299
PubMed:
16503558

33. Antioxidant and membrane effects of procyanidin dimers and trimers isolated from peanut and cocoa

Author:
Verstraeten, S.V.; Hammerstone, J.F.; Keen, C.L.; Fraga, C.G.; Oteiza, P.I.
Source:
Journal of agricultural and food chemistry 2005 v.53 no.12 pp. 5041-5048
ISSN:
0021-8561
Subject:
peanuts; cocoa beans; procyanidins; liposomes (artificial); phosphatidylcholines; antioxidant activity; membrane fluidity; membrane potential
Abstract:
... The antioxidant and membrane effects of dimer (Dim) and trimer (Trim) procyanidins isolated from cocoa (Theobroma cacao) (B- and C-bonded) and peanut (Arachis hypogea L.) skin (A-bonded) were evaluated in phosphatidyl choline liposomes. When liposomes were oxidized with a steady source of oxidants, the above dimers and trimers inhibited to a similar extent lipid oxidation in a concentration (0.33- ...
DOI:
10.1021/jf058018m

34. Antioxidant and micronutrient quality of fruit and root vegetables from the Indian subcontinent and their comparative performance with green leafy vegetables and fruits

Author:
Tarwadi, K.; Agte, V.
Source:
Journal of the science of food and agriculture 2005 v.85 no.9 pp. 1469-1476
ISSN:
0022-5142
Subject:
nutrient content; free radicals; root vegetables; assays; green leafy vegetables; fruit composition; antioxidant activity; mineral content; antioxidants; India
Abstract:
... Commonly consumed, fruit vegetables (12) and root vegetables (15) in the Indian subcontinent in cooked and uncooked states assessed for inhibition of thiobarbituric acid reactive substances (TBARS), superoxide radical scavenging activity (SOSA), ferrous iron chelating ability (FICA) and nine micronutrients, exhibited large variability in these parameters. SOSA and FICA were significantly associate ...
DOI:
10.1002/jsfa.2141

35. Antioxidant and pro-oxidant activities of aqueous extracts and crude polyphenolic fractions of rooibos (Aspalathus linearis)

Author:
Joubert, E.; Winterton, P.; Britz, T.J.; Gelderblom, W.C.A.
Source:
Journal of agricultural and food chemistry 2005 v.53 no.26 pp. 10260-10267
ISSN:
0021-8561
Subject:
Fabaceae; herbal tea; plant extracts; polyphenols; antioxidants; antioxidant activity; oxidation; lipid peroxidation; linoleic acid; fermentation
Abstract:
... Unfermented rooibos tea is known to contain higher levels of total polyphenols and flavonoids than its fermented counterpart, making it the obvious choice for the preparation of flavonoid-enriched fractions. Evaluation of aqueous extracts and crude polyphenolic fractions of unfermented and fermented rooibos showed anti- and/or pro-oxidant activities, using a linoleic acid-Tween-buffer emulsion for ...
DOI:
10.1021/jf051355a

36. Antioxidant capability of polysaccharides fractionated from submerge-cultured Agaricus blazei mycelia

Author:
Ker, Y.B.; Chen, K.C.; Chyau, C.C.; Chen, C.C.; Guo, J.H.; Hsieh, C.L.; Wang, H.E.; Peng, C.C.; Chang, C.H.; Peng, R.Y.
Source:
Journal of agricultural and food chemistry 2005 v.53 no.18 pp. 7052-7058
ISSN:
0021-8561
Subject:
Agaricus; mycelium; cell culture; polysaccharides; molecular weight; medicinal properties; antioxidant activity; free radicals; chelation; iron; free radical scavengers
Abstract:
... Five polysaccharide fractions (AB-1, AB-2, AB-3, AB-4, and AB-5) were obtained after a systemic solvent extraction and precipitation of Agaricus blazei mycelia with yields of 5.20, 9.03, 2.84, 17.47, and 0.44%, respectively. Among which, AB-1 and AB-3 demonstrated great DPPH(.) radical scavenging ability around 85.0 and 72.0%, respectively, at a concentration of 5 mg/mL. The ferrous ion chelating ...
DOI:
10.1021/jf0510034

37. Antioxidant capacity and phenolic content of spinach as affected by genetics and maturation

Author:
Pandjaitan, N.; Howard, L.R.; Morelock, T.; Gil, M.I.
Source:
Journal of agricultural and food chemistry 2005 v.53 no.22 pp. 8618-8623
ISSN:
0021-8561
Subject:
harvest date; cultivars; spinach; Spinacia oleracea; maturity stage; food composition; flavonoids; antioxidant activity; antioxidants; plant age; phenolic compounds
Abstract:
... Spinach leaves harvested at three maturity stages from eight commercial cultivars (CC) and eight advanced breeding lines (ABL) were evaluated for oxygen radical absorbing capacity (ORAC), total phenolics, and flavonoid composition and content. ABL had higher levels of total phenolics, total flavonoids, and ORAC than CC. Midmaturity spinach leaves had higher levels of total phenolics, total flavono ...
DOI:
10.1021/jf052077i

38. Antioxidant capacity as a reliable marker of stress in dairy calves transported by road

Author:
Pregel, P.; Bollo, E.; Cannizzo, F.T.; Biolatti, B.; Contato, E.; Biolatti, P.G.
Source:
Veterinary record 2005 v.156 no.2 pp. 53-54
ISSN:
0042-4900
Subject:
dairy cattle; animal transport; animal stress; antioxidant activity
DOI:
10.1136/vr.156.2.53

39. Antioxidant capacity of fresh-cut vegetables exposed to ionizing radiation

Author:
Fan, X.
Source:
Journal of the science of food and agriculture 2005 v.85 no.6 pp. 995-1000
ISSN:
0022-5142
Subject:
fresh-cut foods; head lettuce; romaine lettuce; endive; food irradiation; ionizing radiation; antioxidant activity; food composition; phenolic compounds; storage time; enzymatic browning
Abstract:
... The effect of ionizing radiation on antioxidant capacity, phenolic content and tissue browning of three vegetables was studied. Midrib and non-midrib leaf tissues of Romaine and Iceberg lettuce and endive were irradiated with gamma-rays at 0, 0.5, 1 and 2 kGy, and then stored at 7-8 degrees C for 8 days. Antioxidant capacity and phenolic content of tissues as well as tissue browning were analyzed ...
Handle:
10113/19303
DOI:
10.1002/jsfa.2057

40. Antioxidant capacity of plasma after red wine intake in human volunteers

Author:
Fernandez-Pachon, M.S.; Villano, D.; Troncoso, A.M.; Garcia-Parrilla, M.C.
Source:
Journal of agricultural and food chemistry 2005 v.53 no.12 pp. 5024-5029
ISSN:
0021-8561
Subject:
red wines; food intake; blood chemistry; blood plasma; antioxidant activity; free radicals; humans
Abstract:
... Plasma antioxidant capacity (AC) has been assessed in eight healthy human volunteers after wine intake. Analytical methods used for evaluating AC included the ferric reducing ability of plasma (FRAP) and oxygen radical absorbance capacity using two different fluorescent probes, beta-phycoerythrin (ORAC-PE) and fluorescein (ORAC-FL). In addition, the concentrations of endogenous antioxidants such a ...
DOI:
10.1021/jf0501995

41. Antioxidant constituents of the aerial parts of Globularia alypum growing in Morocco

Author:
Es-Safi, N.E.; Khlifi, S.; Kerhoas, L.; Kollmann, A.; El Abbouyi, A.; Ducrot, P.H.
Source:
Journal of natural products 2005 v.68 no.8 pp. 1293-1296
ISSN:
0163-3864
Subject:
Globularia; medicinal plants; plant extracts; phytochemicals; phenolic compounds; glycosides; chemical structure; spectral analysis; antioxidant activity; Morocco
DOI:
10.1021/np0501233
PubMed:
16124783

42. Antioxidant effect of saponin: potential action of a soybean flavonoid on glucose tolerance and risk factors for atherosclerosis

Author:
H. G. Rodrigues; Y. S. Diniz; L. A. Faine; C. M. Galhardi; R. C. Burneiko; J. A. Almeida; B. O. Ribas; >E. L. B. Novelli
Source:
International journal of food sciences and nutrition 2005 v.56 no.2 pp. 79-85
ISSN:
1465-3478
Subject:
antioxidant activity; saponins; flavonoids; oxidative stress; antioxidants; glucose tolerance; risk factors; rats; hypolipidemia; lipid peroxidation; soybeans; animal models; glycemic effect; lipemic effect; diet-related diseases; blood lipids; atherosclerosis
Abstract:
... At the present time, much attention is being paid to antioxidant substances because many pathological conditions are associated with oxidative stress. The purpose of the present study was to discover the potency of saponin (2-phenyl-benzopyrane), a soybean flavonoid, with respect to its hypoglycaemic and hypolipidaemic action, and the association of these effects with oxidative stress. Male Wistar ...
DOI:
10.1080/09637480500081738
PubMed:
16019317

43. Antioxidant effects of diarylheptanoid derivatives from Alnus japonica on human LDL oxidation

Author:
Lee, W.S.; Kim, J.R.; Im, K.R.; Cho, K.H.; Sok, D.E.; Jeong, T.S.
Source:
Planta medica 2005 v.71 no.4 pp. 295-299
ISSN:
0032-0943
Subject:
Alnus japonica; medicinal plants; plant extracts; heptane; low density lipoprotein; oxidation; antioxidant activity; chemical structure; spectral analysis; humans; South Korea
DOI:
10.1055/s-2005-864093
PubMed:
15856403

44. Antioxidant gene expression in the blood-feeding fly Glossina morsitans morsitans

Author:
Munks, R.J.L.; Sant'Anna, M.R.V.; Grail, W.; Gibson, W.; Igglesden, T.; Yoshiyama, M.; Lehane, S.M.; Lehane, M.J.
Source:
Insect molecular biology 2005 v.14 no.5 pp. 483-491
ISSN:
0962-1075
Subject:
Glossina morsitans morsitans; hematophagous insects; antioxidant activity; gene expression; sequence homology; insect development; developmental stages; tissue distribution; midgut; insect vectors; Trypanosoma; infection
Abstract:
... We report the characterization of 11 antioxidant genes from the tsetse fly Glossina m. morsitans. Through similarity searches which detected homology we suggest that these genes consist of two superoxide dismutases (one with a putative signal peptide), three thioredoxin peroxidases (one with a putative signal peptide), three peroxiredoxins, one further signal peptide-containing peroxidase with its ...
DOI:
10.1111/j.1365-2583.2005.00579.x
PubMed:
16164604

45. Antioxidant phenolic glycosides from Moricandia arvensis

Author:
Braham, H.; Mighri, Z.; Jannet, H.B.; Matthew, S.; Abreu, P.M.
Source:
Journal of natural products 2005 v.68 no.4 pp. 517-522
ISSN:
0163-3864
Subject:
plant extracts; quercetin; antioxidant activity; spectral analysis; Moricandia arvensis; glycosides; chemical structure; stereochemistry; phenolic compounds; Portugal
DOI:
10.1021/np049581m
PubMed:
15844940

46. Antioxidant pool in beer in kinetics of EPR spin-trapping

Author:
Kocherginsky, N.M.; Kostetski, Y.Y.; Smirnov, A.I.
Source:
Journal of agricultural and food chemistry 2005 v.53 no.17 pp. 6870-6876
ISSN:
0021-8561
Subject:
beers; antioxidants; antioxidant activity; electron paramagnetic resonance spectroscopy; reaction kinetics; oxidation; free radicals
Abstract:
... The kinetics of spin-trap adduct formation in beer oxidation exhibits an induction period if the reaction is carried out at elevated temperatures and in the presence of air. This lag period lasts until the endogenous antioxidants are almost completely depleted, and its duration is used as an indicator of the flavor stability and shelf life of beer. This paper demonstrates that the total kinetics o ...
DOI:
10.1021/jf051045s

47. Antioxidant potency of cumin varieties--cumin, black cumin and bitter cumin--on antioxidant systems

Author:
Thippeswamy, N.B.; Naidu, K.A.
Source:
European food research & technology 2005 v.220 no.5-6 pp. 472-476
ISSN:
1438-2377
Subject:
traditional medicine; free radicals; cumin; lipid peroxidation; nutritive value; Cuminum cyminum; physical models; free radical scavengers; food composition; Nigella sativa; antioxidant activity; phenolic compounds
DOI:
10.1007/s00217-004-1087-y

48. Antioxidant properties of kilned and roasted malts

Author:
Samaras, T.S.; Camburn, P.A.; Chandra, S.X.; Gordon, M.H.; Ames, J.M.
Source:
Journal of agricultural and food chemistry 2005 v.53 no.20 pp. 8068-8074
ISSN:
0021-8561
Subject:
malting barley; malt; Maillard reaction products; roasting; kilns; heat treatment; antioxidant activity; antioxidants; phenolic compounds
Abstract:
... Compounds possessing antioxidant activity play a crucial role in delaying or preventing lipid oxidation in foods and beverages during processing and storage. Such reactions lead to loss of product quality, especially as a consequence of off-flavor formation. The aim of this study was to determine the antioxidant activity of kilned (standard) and roasted (speciality) malts in relation to phenolic c ...
DOI:
10.1021/jf051410f

49. Antioxidant properties of malt model systems

Author:
Samaras, T.S.; Gordon, M.H.; Ames, J.M.
Source:
Journal of agricultural and food chemistry 2005 v.53 no.12 pp. 4938-4945
ISSN:
0021-8561
Subject:
model food systems; malt; malting; glucose; Maillard reaction products; proline; heat treatment; antioxidant activity; ferulic acid; antioxidants
Abstract:
... The aim of this study was to investigate the effect of kilning and roasting temperatures on antioxidant activity of malt model systems prepared from combinations of glucose, proline, and ferulic acid. Model systems (initial a(w) = 0.09, 6% moisture) were heated at 60 degrees C for up to 24 h, at 90 degrees C for up to 120 min, and at 220 degrees C for up to 15 min. The antioxidant activity of the ...
DOI:
10.1021/jf0501600

50. Antioxidant properties of prepared blueberry (Vaccinium myrtillus) extracts

Author:
Faria, A.; Oliveira, J.; Neves, P.; Gameiro, P.; Santos-Buelga, C.; Freitas, V. de; Mateus, N.
Source:
Journal of agricultural and food chemistry 2005 v.53 no.17 pp. 6896-6902
ISSN:
0021-8561
Subject:
anthocyanins; polyphenols; free radicals; assays; lipid peroxidation; free radical scavengers; Vaccinium myrtillus; liposomes (artificial); extracts; antioxidant activity; blueberries
Abstract:
... A blueberry extract (A) and two anthocyanin-derived extracts (B and C) were prepared. The contents of polyphenols, flavonoids, anthocyanins, and anthocyanin-derived pigments of the extracts were determined for the first time. The pigment profile of blueberry extract A corresponded to 15 anthocyanins, whereas extract B was mainly composed of anthocyanin-pyruvic acid adducts of the blueberry origina ...
DOI:
10.1021/jf0511300