antioxidant activites of prickly pear opuntia ficus indica fruit and its betalains betanin and indicaxanthin

Báo cáo sinh học: "Breeding structure of Drosophila buzzatii in relation to competition in prickly pears (Opuntia ficus-indica)" potx

Ngày tải lên : 09/08/2014, 18:22

... the incidence of competition in Opuntia ficus- indica fruits (prickly pears) in the field, together with an analysis of genetic diversity for the Drosophila buzzatii (Patterson and Stone) flies ... of time in the field these fruits were recollected and placed separately in jars on a bed of sand, covered with gauze After 24 h, 30 labelled fruits were collected After 48 h, another 30 fruits ... g of wet weight), ’en masse’ they can form habitats of considerable size We not have an estimate of the relative contributions of Opuntia fruits and cladodes to the total population density of...

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Báo cáo sinh học: "Phenotypic plasticity of body pigmentation in Drosophila: Breeding structure of Drosophila buzzatii in relation to competition in prickly pears (Opuntia ficus-indica)" potx

Ngày tải lên : 14/08/2014, 15:21

... the incidence of competition in Opuntia ficus- indica fruits (prickly pears) in the field, together with an analysis of genetic diversity for the Drosophila buzzatii (Patterson and Stone) flies ... of time in the field these fruits were recollected and placed separately in jars on a bed of sand, covered with gauze After 24 h, 30 labelled fruits were collected After 48 h, another 30 fruits ... g of wet weight), ’en masse’ they can form habitats of considerable size We not have an estimate of the relative contributions of Opuntia fruits and cladodes to the total population density of...

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báo cáo khoa học: "Emerging role of Garcinol, the antioxidant chalcone from Garcinia indica Choisy and its synthetic analogs" doc

Ngày tải lên : 10/08/2014, 22:20

... identification and quantification of two isomeric polyisoprenylated benzophenones, isoxanthochymol and camboginol, in the extracts of the stem bark, seeds and seed pericarps of Garcinia indica and in the fruit ... mechanism of antioxidant activity of garcinol Hong et al have investigated possible mechanisms of antioxidant action of garcinol and its derivatives on arachidonic acid metabolism and NO radical ... decoction of the bark is used for treating paralysis The antioxidant activity of aqueous extract of the plant has been reported, which is higher than other reported spices and fruits thus promoting its...

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Báo cáo hóa học: " Genetic analysis of Thailand hantavirus in Bandicota indica trapped in Thailand" pptx

Ngày tải lên : 20/06/2014, 01:20

... reality of an endemic Southeast Asian group of hantaviruses and to understand their particularities, their current distribution among rodents in different areas and in different landscapes and finally ... improvement of our knowledge of the ecology and biogeography of the hantavirus natural reservoirs in Southeast Asia Thailand, which health system is strongly organized and possesses important and detailed ... a product of a host-switch of preTHAI from Bandicota to Rattus The results of previous studies suggested that new viruses, different hosts and different human syndromes may be Page of (page number...

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Báo cáo khoa học " Optimisation of extraction procedure for black fungus polysaccharides and effect of the polysaccharides on blood lipid and myocardium antioxidant enzymes activities " pdf

Ngày tải lên : 28/06/2014, 11:20

... of R (0.9355) indicated good agreement between the experimental and predicted values of extraction yield of polysaccharides 3.1 Effect of different extraction parameters on extraction yield of ... mannose, glucose and xylose, constituents The band at 2926 cm−1 is associated with the vibrations of C–H bond The band at 991 cm−1 is associated with the presence of ␤-pyran ring, which indicated the ... al., 2009) MDA and GSH levels of BFP-treated and untreated high fat mice are presented in Figs and Compared with normal control, MDA level and increased GSH level in myocardium and blood were...

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Báo cáo khoa học " Structure elucidation and antioxidant activity of a novel polysaccharide isolated from Tricholoma matsutake " ppt

Ngày tải lên : 28/06/2014, 11:20

... absorbance in the presence of the sample and H2 O2 , A0 is the absorbance of the control in the absence of the sample and H2 O2 , and A is the absorbance only in the presence of the H2 O2 2.6 Nuclear ... spectra of polysaccharide TMP-A Results and discussion 3.1 Extraction, purity and composition of polysaccharides The crude polysaccharide, named TMP, was obtained from the fruiting bodies of T matsutake ... elucidation of TMP-A The intensity of bands around 3408.22 cm−1 in the IR spectrum (Fig 1) was due to the hydroxyl stretching vibration of the polysaccharide and as expected they were broad The bands...

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Báo cáo vật lý: "Evaluation of In Vitro Antioxidant Activity of 5H-dibenz[b,f]azepine and Its Analogues" ppt

Ngày tải lên : 07/08/2014, 14:20

... mass spectroscopy and elemental analysis The IR spectra of compounds (e) and (f) showed the absent of the N–H absorption band at 3400 cm–1 and the presence of the C=O stretching band at 1600 cm–1, ... determined and compared with those of the synthesised compounds (Fig 3) The antioxidant activity of BHA and AA was still lower than that of the compounds (a) and (d) In general, the antioxidant ... reported the antioxidant properties of 5Hdibenz[b,f]azepine and some of its analogues, and it was possible to establish some structure-activity relationships based on the different substitutes and the...

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Báo cáo lâm nghiệp: "Antioxidant properties of wood extracts and colour stability of woods" pps

Ngày tải lên : 07/08/2014, 16:20

... colour stability of a wood and antioxidant capacity of its extracts MATERIALS AND METHODS 2.1 Chemicals, industrial extracts, and wood samples Reagents were the purest grade of Fluka, Merck, ... phenol content of laboratory extracts and their antioxidant power as measured by OUI and C50 4.2 Phenol content of extracts and antioxidant capacity Figure Correlation between antioxidant capacity ... presence of an antioxidant extract, oxygen consumption is slower, and we measured the antioxidant capacity of the extract by the ratio of oxygen uptake at a chosen time in the presence and in the...

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Báo cáo lâm nghiệp: " Impact of drought and leaf development stage on enzymatic antioxidant system of two Populus deltoides × nigra clones" potx

Ngày tải lên : 08/08/2014, 00:22

... activity (E and F), catalase activity (G and H), and peroxidase activity (I and J) of expanding (white) and recently mature leaves (black) of clones ‘Dorskamp’ (A, C, E, G, and I) and ‘Luisa_Avanzo’ ... participation of this class of molecules during drought [10] The objective of the present investigation was to focus on the response of some of the leaf enzymatic antioxidant system (SOD, catalase and ... well-known phenomenon [15] and is Poplar leaf enzymatic antioxidants under drought 325 Figure Predawn leaf water potential (Ψwp) of cuttings (A and B), and protein content (C and D), superoxide dismutase...

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Báo cáo y học: "Behavioral and antioxidant activity of a tosylbenz[g]indolamine derivative. A proposed better profile for a potential antipsychotic agent" pptx

Ngày tải lên : 08/08/2014, 20:23

... of experimental animals: 4) b) modifies the motor behavior of the experimental animals, c) shows antioxidant activity a) The Polar Surface Area (PSA) of a molecule is defined as the area of its ... to that of the indole ring in its low energy conformation (Figure 4) [24] is important to the differentiation of the biological profile between compounds PBIA and TPBIA The association of increasing ... energy conformation and van der Waals surface of comLow energy conformation and van der Waals surface of compound TPBIA Page of (page number not for citation purposes) Annals of General Hospital...

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Báo cáo y học: "Antioxidant activity of tuberosin isolated from Pueraria tuberose Linn" pot

Ngày tải lên : 11/08/2014, 03:20

... Effects of inhibition of glycation and oxidative stress on the development of diabetic nephropathy in rats Journal of diabetes and its complications 2002, 6(16):395-400 36 Tripathi YB, Reddy MM, Pandey ... tuberosin is one of the active principles of Pandey and Tripathi Journal of Inflammation 2010, 7:47 http://www.journal-inflammation.com/content/7/1/47 Pueraria tuberose for its claimed antioxidant ... 0.1 and p** < 0.001 Pandey and Tripathi Journal of Inflammation 2010, 7:47 http://www.journal-inflammation.com/content/7/1/47 Page of Table Effect of tuberosin on LPS induced NO production and...

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báo cáo khoa học: " An unedited 1.1 kb mitochondrial orfB gene transcript in the Wild Abortive Cytoplasmic Male Sterility (WA-CMS) system of Oryza sativa L. subsp. indica" ppt

Ngày tải lên : 12/08/2014, 03:21

... Sequence alignment of 0.7 kb and 1.1 kb transcripts of orfB gene Position of primers used in RT-PCR and RACE experiments are shown in the sequence alignment of the edited ~0.7 kb and unedited ~1.1 ... ~0.7 kb and ~1.1 kb bands; while the fertile Figure Northern blot analysis of sterile and restorer rice lines in search of 1.1 kb transcript Northern blot analysis of the WA sterile (lane 2) and ... Thirty-two clones of the maintainer F1(APMS-6A × APMS-6B) plants were randomly selected and sequenced and provided evidence for the presence of edited and unedited sequences About 71.87% of the clones...

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Báo cáo y học: " Antioxidant components of naturally-occurring oils exhibit marked anti-inflammatory activity in epithelial cells of the human upper respiratory system" pdf

Ngày tải lên : 12/08/2014, 13:22

... final volume of 20 μl containing μg of total RNA, 100 ng of random hexamers, 1X reverse transcription buffer, 2.5 mM MgCl2, mM dNTP, 20 units of multiscribe reverse transcriptase, and nuclease ... protection Involvement of antioxidant genes with varying kinetic profiles of activity could provide both immediate and more prolonged antioxidant capacity The activity of such a mechanism would ... resulted in activation of Nrf2 and increases in the expression of several representative antioxidant genes with both rapid response and late activation profiles The effectiveness of the short treatment...

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Báo cáo sinh học: "Correlation between antibutyrylcholinesterasic and antioxidant activities of three aqueous extracts from Tunisian Rhus pentaphyll" potx

Ngày tải lên : 12/08/2014, 17:20

... presence of tannins and flavonoids by using the methods previously described by Mansour et al [20] Two Page of milligrams of each extract were dissolved in ml of water The identification of major ... employed: 1.5 ml of phosphate buffer 50 mM pH = 7.2, containing 0.26 mM of 5,5’-dithiobis-2- nitrobenzoic acid (DTNB), 10 μl of human plasma and 10 μl of the tested compound (1, 10 and 100 μg/ml ... order to measure the antioxidant activity of extracts, 10 μl of each sample at various concentrations (0.5, 2.5, 4.5, 7.5 and 9.5 mg/ ml) was added to 990 μl of diluted ABTS +• and the absorbance...

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Báo cáo y học: "Antimicrobial and antioxidant activities of Cortex Magnoliae Officinalis and some other medicinal plants commonly used in South-East Asia" doc

Ngày tải lên : 13/08/2014, 15:21

... discovery of synergism between magnolol and honokiol Ethanolic extract of Folium Murraya Koenigii and boiled extract of Herba Polygonis Hydropiperis showed 80% and 50% of the activities of streptomycin ... Googoolye K, Aruoma OI: Assessment of the content of phenolics and antioxidant actions of the Rubiaceae, Ebenaceae, Celastraceae, Erythroxylaceae and Sterculaceae families of Mauritian endemic plants ... media and standard antibiotic discs Four strains of bacteria and one strain of yeast were used for antimicrobial tests The test bacteria included Grampositive Staphylococcus aureus (ATCC 6538P) and...

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Báo cáo y học: "Antioxidant effects of ethyl acetate extract of Desmodium gangeticum root on myocardial ischemia reperfusion injury in rat hearts" pps

Ngày tải lên : 13/08/2014, 15:21

... assess the antioxidant potential of the herbal extract Methods Preparation of ethyl acetate extract of Desmodium gangeticum root The whole plant of Desmodium gangeticum was authenticated by Prof James ... made up to ml by adding distilled water and kept in a water bath at 100°C for hour After cooling, ml of distilled water and ml of a mixture of n-butanol and pyridine (15:1 v/v) was added The mixture ... absorbance of the chromophore formed during the diazotization of nitrite with sulphanilamide and subsequent coupling with napthylethylenediamine was read at 546 nm and referred to the absorbance of standard...

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Antioxidant activity of essential oils

Ngày tải lên : 16/08/2014, 22:31

... absorbance of the control at t = and AA(t) is the absorbance of the antioxidant at t = h Determination of Ferric Reducing Antioxidant Power (FRAP Assay) The total antioxidant potential of a sample ... determination of ferric reducing antioxidant power (FRAP), determination of antioxidant activity with thiobarbituric acid reactive species (TBARS) and automatic determination of the oxidative stability of ... stock solution (50 mL) of the essential oils (concentrations of stock solutions were 50, 20, 10 and g/L) was put into a cuvette, and mL of ´ 10–5 mol L–1 methanolic solution of DPPH was added Absorbance...

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Characterization of effective antioxidant components of tropical fruit and vegetable species

Ngày tải lên : 12/09/2015, 09:55

... Identification of antioxidants in fruits and vegetables ….……………………… 21 III 1.6.1 Analysis of antioxidants in fruits and vegetables using HPLC/DAD…… …… .23 1.6.2 Analysis of antioxidants in fruits and vegetables ... Antioxidant components of fruits and vegetables……………………………………… 68 3.3.1 L-Ascorbic acid contribution to TAC of selected fruits and vegetables…………… 68 3.3.2 Total phenolic contents of fruits and ... capacity of fruits and vegetables available in the Singapore market and identify fruits and vegetables as potential dietary antioxidant sources The exact link between fruits and vegetables and certain...

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Evaluation of the antioxidant activity of scutellaria baicalensis and its constituents in diabetic rats

Ngày tải lên : 12/09/2015, 10:58

... for diabetes and its complications 1.2 OBJECTIVES The overall objective of this thesis was to investigate the antioxidant and anti-diabetic properties of Scutellaria baicalensis and its primary ... the prevention of diabetes mellitus-induced oxidative stress and its complications 47 2.5 In vivo models of diabetes 52 References 55 CHAPTER CHARACTERIZATION OF THE ANTIOXIDANT AND ANTI- DIABETIC ... Traditional Chinese Medicine to treat diabetes and its complications owing to its potent antioxidant and radical scavenging activities Many of the diabetic micro- and macrovascular complications are known...

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