Consulta: subjectFacets:"Flavonoid"
Registros recuperados: 22
Data/hora: 04/06/2024 18:57:24

Do different casein concentrations increase the adverse effect of rutin on the biology of Anticarsia gemmatalis Hübner (Lepidoptera: Noctuidae)?
Provedor de dados: 82
Autores: Salvador,Mariana C; Boiça Jr,Arlindo L; Oliveira,Maria C N De; Graça,José P Da; Silva,Débora M Da; Hoffmann-Campo,Clara B.
The flavonoid rutin is recognized as playing an important role in the protection of plants against lepidopterans. Bioassays with this compound are generally carried out using artificial diets. Proteins of high energy value, such as casein, are important ingredients of insect artificial diets as a source of essential amino acids. However, such proteins can generally increase the allelochemical activity. Our objective was to evaluate the effects of rutin on larvae of the velvetbean caterpillar Anticarsia gemmatalis Hübner by incorporating this allelochemical into diets with different concentrations of casein. Three casein concentrations (0, 7 g, or 14 g) combined with none, 0.65%, or 1.30% of rutin were added to the rearing diet and offered to the larvae...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Flavonoid; Velvetbean caterpillar; Biological parameter.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000500017

Leaf Morphoanatomy and Biochemical Variation on Coffee Cultivars Under Drift Simulation of Glyphosate
Provedor de dados: 87
Autores: REIS,L.A.C.; CARVALHO,F.P.; FRANÇA,A.C.; FRANCINO,D.M.T.; PINTO,N.A.V.D.; FREITAS,A.F.
ABSTRACT: The most widely used herbicide in coffee crop is glyphosate, it inhibits the biosynthesis of secondary metabolites, responsible for structures and substances of plant defense. This work aimed to evaluate the morphoanatomy, total phenols, flavonoids and caffeine in leaves of Arabica coffee submitted to different sub-doses of glyphosate. The treatments were combinations of three coffee cultivars (MGS Travessia, Oeiras MG 6851 and Catuaí IAC 144) and five sub-doses of glyphosate (0.0, 57.6, 115.2, 230.4 and 460.8 g a.e. ha-1). The total thickness of the leaf blade, thickness of adaxial and abaxial epidermis, palisade and spongy parenchyma, in addition to the total phenol, total flavonoids and caffeine were evaluated 30 days after spraying. Catuaí...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Herbicide drift; Coffea arabica; Epidermis; Parenchyma; Caffeine; Flavonoid.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100336

The Effects of Dietary Flavonoid Supplementation on the Antioxidant Status of Laying Hens
Provedor de dados: 89
Autores: Iskender,H; Yenice,G; Dokumacioglu,E; Kaynar,O; Hayirli,A; Kaya,A.
ABSTRACT Ninety-six 28-week-old Lohmann White laying hens were utilized to test the antioxidant effects of flavonoids (hesperidin, naringin, and quercetin at 0.5 g/kg diet) during an 8-wk experimental period. At the end of the experiment blood samples were collected to determine total protein, cholesterol, and malondialdehyde (MDA) serum levels as well as activities of glutathione reductase (GR), glutathione peroxidase (GSH-Px), glutathione-S-transferase (GST), and superoxide dismutase (SOD) and level of glutathione (GSH) in erythrocyte lysates. Data were analyzed using one-way ANOVA. Naringin supplementation did not alter serum cholesterol concentration, whereas hesperidin and quercetin supplementations decreased serum cholesterol concentration. Naringin...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidant; Flavonoid; Hesperidin; Naringin; Quercetin.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000400663

Antiplatelet but not anticoagulant activity of Morinda citrifolia L. leaf extracts
Provedor de dados: 98
Autores: Ramírez Beltrán,Roberto; García Mir,Vivian; Armenteros Herrera,Dulce María; Quintela Pena,Ana María; Garcia-Mesa,Milagros.
Tipo: Journal article
Palavras-chave: Morinda citrifolia L; (Noni); Medicinal plant; Platelet aggregation; Blood coagulation; Flavonoid; Cuba.
Ano: 2015
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47962015000200008

Antioxidants properties of chocolates sold in Peru
Provedor de dados: 109
Autores: Calixto-Cotos,María Rosario; Chire-Fajardo,Gabriela Cristina; Orihuela-Rivera,Carmen Adela.
Abstract The goals of this paper were to evaluate total polyphenol content (TPC), total flavonoid content (TFC), anti-oxidant capacity (AC) and reducing power (RP) of eight dark chocolates that are sold in Peru. Imported and domestic chocolate samples containing between 50% and 74% cacao were defatted. Defatted chocolate (DCh) was separated and treated to extract phenolic compounds. The TPC and AC were determined by using the Folin-Ciocalteu reagent and two in vitro models based on the free-radical capturing capacity DPPH and ABTS. The RP was evaluated by using the potassium pherricyanide method; in the TFCs assessments, catechin was used as the standard. Chocolate TPC varied between 1.69 ± 0.02 and 5.39 ± 0.17 mg gallic acid/g chocolate and AC (DPPH-IC50)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ABTS; Cacao; Defatted chocolate; DPPH; Folin-Ciocalteu; Flavonoid; Polyphenolic compounds; Reducing power.
Ano: 2018
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122018000400479

Chemotaxonomy and flavonoid diversity of Salvia L.(Lamiaceae) in Iran
Provedor de dados: 39
Autores: Kharazian,Navaz.
In this study, we evaluated the chemotaxonomic status and chemical diversity of Salvia L. species in Iran using leaf flavonoid profiles. From natural habitats in the country, we collected samples of 14 species of the genus: S. spinosa L.; S. macrosiphon Boiss.; S. reuterana Boiss.; S. sharifii Rech.f. &amp;amp; Esfand.; S. nemorosa L.; S. virgata Jacq.; S. syriaca L.; S. mirzayanii Rech.f. &amp;amp; Esfand.; S. atropatana Bunge; S. limbata C. A. Mey; S. sclarea L.; S. ceratophylla L.; S. multicaulis Vahl.; and S. hydrangea Dc. ex Benth. Two-dimensional maps of these species were created with thin-layer chromatography. In order to study the taxonomic position of these species and 37 accessions, cluster analysis was applied. The results of the cluster...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Thin-layer chromatography; Chemical diversity; Salvia; Flavonoid; Lamiaceae.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062014000200015

Analysis of the Phenol and Flavonoid Content from Basil Leaves (Ocimum Americanum L) Extract Using Pulsed Electric Field (PEF) Pre-Treatment
Provedor de dados: 111
Autores: Hendrawan, Yusuf; Sabrinauly, Sabrinauly; Hawa, La Choviya; Argo, Bambang Dwi; Rachmawati, Muchnuria.
Basil leaves (Ocimum Americanum Linn) are commonly known to contain phenol and flavonoid compounds which can act as antimicrobial and antioxidants. In general, the bioactive compound can be obtained by conventional extraction method, maceration. To increase the amount of bioactive compounds which can be extracted, it is necessary to conduct pre-treatment using Pulsed Electric Field (PEF). PEF has an advantage in increasing the compound transfer contained in cells to be extracted from the plant tissues via electroporation mechanisms, without causing significant temperature changes. This study aims to determine the effect of electric field strength variations (2, 3, and 4 kV/cm) and duration of pre-treatment (1, 2, and 3 minutes) to total phenol and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering Basil leaves; Phenol; Flavonoid; Pulsed electric field.
Ano: 2019
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5240

Chemical constituents of Simarouba versicolor
Provedor de dados: 42
Autores: ARRIAGA,ANGELA M.C.; MESQUITA,ALDENOR C. DE; POULIQUEN,YVONE B.M.; LIMA,ROBERTO A. DE; CAVALCANTE,SERGIO H.; CARVALHO,MARIO G. DE; SIQUEIRA,JOSÉ A. DE; ALEGRIO,LEILA V.; BRAZ-FILHO,RAIMUNDO.
From the roots, stems and fruits of Simarouba versicolor (Simaroubaceae) were isolated quassinoids (3, 5-7), triterpenoids (8-14), a mixture of steroids (15-17), the flavonoid kaempferol (18) and the squalene derivative 11,14-diacetoxy-7,10; 15,18-diepoxy-6,19-dihidroxy-6,7,10,11,14,15,18,19-octahydrosqualene (19). Spectral data were used for structural characterization.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Simarouba versicolor; Simaroubaceae; Quassinoids; Triterpenoids; Steroids; Flavonoid; Squalene derivative.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652002000300004

Phenolic compounds from the rhizome of Renealmia nicolaioides Loes.: a new diarylheptanoid
Provedor de dados: 42
Autores: GEVÚ,KATHLYN V.; CARVALHO,MÁRIO G. DE; SILVA,ILNA G. DA; LIMA,HELENA R.P.; CASTRO,ROSANE N.; CUNHA,MAURA DA.
Abstract: This study aims to identify phenolic compounds in dichloromethane and methanolic extracts of the rhizome of Renealmia nicolaioides collected in the North Region of Brazil. Two known diarylheptanoids, 1,7-bis(4-hydroxyphenyl)-(1E)-1-hepten-3-one (1), and 5R-1,7-bis(4-hydroxyphenyl)-1E-hepten-5-ol (2), and a new one (1R,2S,5S)-2-hydroxy-1,7(p-hydroxyphenyl)-centrolobine (3), as well as one flavonoid, 3-metoxi-quercetin (4) were isolated by chromatographic procedure and identified by spectroscopic techniques (1H and13C NMR, HRMS and CD). The acetyl derivative of 2 was used to confirm its structure. All four compounds are reported for the first time for this genus, and this is the first occurrence of compound 1 as a natural metabolite. The results...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Flavonoid; Alpinieae tribe; Zingiberaceae; Underground organ.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000100403

Does mechanical damage on soybean induces the production of flavonoids?
Provedor de dados: 42
Autores: SILVA,PAULO LUIZ DA; CORDEIRO,GLÁUCIA; SILVA,CAROLINA R. DA; BARROS,RAFAEL A.; SILVA,CAMILA R. DA; ZANUNCIO,JOSÉ C.; CAMPOS,WELLINGTON G.; OLIVEIRA,MARIA G.A.
Abstract The response of plants to grazing includes the production of chemical defense compounds such as proteases inhibitors and secondary metabolites as flavonoids, which makes them less palatable to feeding and negatively affecting the physiology of insects. The aim of this study was to evaluate the phytochemical response of soybean cultivars (Glycine max (L.) Merrill) resistant (IAC-17, IAC-24) and susceptible (IAC-P1) to insects after mechanical damage. These cultivars were mechanically injured, and after 24 hours samples of these plants were analyzed by HPLC to identify and quantify flavonoids. The flavonoids daidzein, quercetin, and rutin were quantified, with the highest concentration of daidzin in soybean cultivars after mechanical damage. Rutin...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycine max; Flavonoid; Herbivory; Mechanical damage; Secondary metabolite.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703415

Diosmin induces caspase-dependent apoptosis in human glioblastoma cells
Provedor de dados: 42
Autores: SOARES,JULIANA M.; FARIA,BRUNA M. DE; ASCARI,LUCAS M.; ALVES-LEON,SONIZA V.; SOUZA,JORGE M. DE; SOARES,ANTONIO G.; CORDEIRO,YRAIMA; ROMÃO,LUCIANA F.
Abstract: Diosmin is a flavone glycoside clinically used as the main component of Daflon for the treatment of venous diseases. Several studies demonstrated that this natural compound can induce apoptosis in different tumors. However, isolated diosmin has not been studied regarding its effects on glioblastoma so far. Since glioblastoma is a highly lethal and fast-growing brain tumor, new therapeutic strategies are urgently needed. Herein, we evaluated the role of this flavonoid against glioblastoma cells using in vitro assays. Diosmin significantly reduced the viability of GBM95, GBM02, and U87MG glioblastoma cells, but not of healthy human astrocytes, as verified by MTT assay. Vimentin immunostaining showed that diosmin induced morphological changes in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apoptosis; Diosmin; Flavonoid; Glioblastoma.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000700701

High resveratrol or quercetin concentrations reduce the oscillation index of frozen goat semen
Provedor de dados: 45
Autores: Silva,E.C.B.; Arruda,L.C.P.; Silva,S.V.; Souza,H.M.; Guerra,M.M.P.
ABSTRACT The aim of this study was to evaluate the effect of different concentrations of trans-resveratrol or quercetin on the ability of goat sperm to withstand being frozen. Six pools of semen obtained from six male goats were processed with different concentrations of resveratrol or quercetin (Experiment 1: 0, 15, 25, 50, 75 or 100µM resveratrol; Experiment 2: 0, 15, 25, 50, 75 or 100µM quercetin) and frozen. After thawing, the semen was evaluated for sperm kinematics, plasma membrane and acrosome integrity, morphology and oxidative stress following 0 and 1h of incubation. Immediately after thawing (0h), wobble (oscillation index) in the groups treated with 100µM of quercetin or resveratrol was lower (P&lt;0.05) than in those treated with 0 and 25µM...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidant; Flavonoid; No flavonoid; Oxidative stress; Semen freezing.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352016000501237

Apigenin inhibits cell migration through MAPK pathways in human bladder smooth muscle cells
Provedor de dados: 47
Autores: Qingxin,Liu; Xianggui,Chen; Guolin,Yang; Xuewen,Min; Maoxian,Deng.
Apigenin, a nonmutagenic flavonoid, has been shown to possess free radical scavenging activities, anticarcinogenic properties, antioxidant and anti-inflammatory effects. Recently, apigenin was reported to cause gastric relaxation in murine. To assess possible effects of apigenin on migration of bladder smooth muscle (SM) cell, we isolated SM cells from peri-cancer tissue of human bladder and established a cell model that was capable to overexpress transiently MEKK1 (MEK kinase 1). Results showed that overexpression of active human MEKK1 by adenoviruses infection induced migration of human bladder smooth muscle (hBSM) cells and phosphorylation of MAPKs, ERK, JNK and p38, which are the downstream molecules of MEKK1. Then, hBSM cell overexpressing MEKK1 were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Flavonoid; Cell motility; MAP kinase.
Ano: 2011
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452011000300002

Phytochemical Profile and Qualification of Biological Activity of an Isolated Fraction of Bellis perennis
Provedor de dados: 48
Autores: Costa Marques,Thiago H; Santos De Melo,Cassio H; Fonseca De Carvalho,Rusbene B; Costa,Luciana M; De Souza,Alexandre A; David,Jorge M; De Lima David,Juceni P; De Freitas,Rivelilson M.
This study describes the isolation and identification of apigenin-7-O-ghicopyranoside, a flavonoid isolated from the flowers of Bellis perennis L., Asteraceae, an species with a broad spectrum of biological activities. The in vitro antioxidant activity and the inhibition of the enzyme acetylcholinesterase were evaluated. The flavonoid showed strong in vitro antioxidant potential, because of the capacity of removal of hydroxyl radicals and nitric oxide, and also prevented the formation of thiobarbituric acid-reactive substances. These parameters were inhibited at the highest concentration of ApG at rates of 77.7%, 72% and 73.4%, respectively, in addition to inhibiting acetylcholinesterase, suggesting potential use in the treatment of neurodegenerative...
Tipo: Journal article
Palavras-chave: Acetylcholinesterase; Antioxidant; Bellis perennis; Flavonoid.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602013000300002

Plant Polyphenol Antioxidants and Oxidative Stress
Provedor de dados: 48
Autores: URQUIAGA,INES; LEIGHTON,FEDERICO.
In recent years there has been a remarkable increment in scientific articles dealing with oxidative stress. Several reasons justify this trend: knowledge about reactive oxygen and nitrogen species metabolism; definition of markers for oxidative damage; evidence linking chronic diseases and oxidative stress; identification of flavonoids and other dietary polyphenol antioxidants present in plant foods as bioactive molecules; and data supporting the idea that health benefits associated with fruits, vegetables and red wine in the diet are probably linked to the polyphenol antioxidants they contain.In this review we examine some of the evidence linking chronic diseases and oxidative stress, the distribution and basic structure of plant polyphenol antioxidants,...
Tipo: Journal article
Palavras-chave: Oxidative stress; Antioxidant; Plant polyphenol; Flavonoid; Chronic diseases; Diet.
Ano: 2000
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602000000200004

Bioactive Compounds and Antioxidant Activity in Leaves of Endemic and Native Isatis spp in Turkey
Provedor de dados: 52
Autores: Comlekcioglu,Nazan.
Abstract This study was undertaken to evaluate the health-promoting potentials of Isatis aucherii, Isatis buschiana, Isatis candolleana, Isatis tinctoria subsp. corymbosa and Isatis tinctoria. I. aucherii and I. candolleana are endemic, I. buschiana, I. tinctoria subsp. corymbosa are native in Turkey. While I. tinctoria is a well studied species, there is insufficient information about other endemic and native species. Therefore, this study is focused to reveal the bioactive compounds of poorly studied endemic and native species. In this context, protein, ash, glucosinolates, fatty acids, total phenolic and flavonoid content, and antioxidant activities were determined in leaf extracts. The highest protein and fatty oil contents were observed in I....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidant activity; Fatty acids; Flavonoid; Glucosinolate; Isatis; Phenolic.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100411

Bioefficacy of pectolinaringenin from Clerodendrum phlomidis Linn. F. against Anopheles stephensi and bhendi fruit borer, Earias vittella fab.
Provedor de dados: 52
Autores: Muthu,Chelliah; Baskar,Kathirvelu; Duraipandiyan,Veeramuthu; Ignacimuthu,Savarimuthu; Al-Dhabi,Naif Abdullah.
Larvicidal activity of pectolinaringenin from Clerodendrum phlomidiswas evaluated against Anopheles stephensi and antifeedant, larvicidal and growth inhibitory activities were evaluated against Earias vittella. Pectolinaringenin exhibited larvicidal activity of 100 and 98.24% against 2nd and 4th instar larvae of Anopheles stephensi at 5ppm concentration. It exhibited LC50 values of 0.35 and 0.55 ppm for 2nd and 4th instar larvae, respectively. At 100 ppm concentration, pectolinaringenin exhibited maximum antifeedant activity of 74.00% and larvicidal activity of 89.98%. The LC50 values were 36.2 and 10.23 ppm for antifeedant and larvicidal, respectively. The compound completely prevented the adult emergence at 50 and 100 ppm concentrations. This is the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anopheles stephensi; Adult emergence; Fraction; Flavonoid; Effective concentration.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000300358

Antioxidant properties of some filamentous green algae (Chaetomorpha Genus)
Provedor de dados: 52
Autores: Farasat,Massoumeh; Khavari-Nejad,Ramazan-Ali; Nabavi,Seyed Mohammad Bagher; Namjooyan,Foroogh.
The antioxidant activity and the contents of total phenolics and flavonoids were quantified in the methanolic extracts of four Chaetomorpha species including C. aerea, C. crassa, C. linum and C. brachygona. Eight samples of Chaetomorpha plants were collected from five locations along the northern coasts of the Persian Gulf in south of Iran from December 2010 until October 2011. Methanolic extracts of the seaweeds were assessed for their antioxidant activity using DPPH radical scavenging assay. C. linum showed highest antioxidant potential with a relatively low IC50 (1.484 ± 0.168 mg mL-1), the highest flavonoid content (18.177 ± 2.238 mg RE g-1 ) and a relatively high content of phenolics (2.895 ± 0.415 mg GAE g-1) in comparison with the other species. C....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidant; Phenolics; Flavonoid; DPPH; Green algae; Chaetomorpha.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132013000600005

Naringenin inhibits the growth and stimulates the lignification of soybean root
Provedor de dados: 52
Autores: Bido,Graciene de Souza; Ferrarese,Maria de Lourdes Lucio; Marchiosi,Rogério; Ferrarese-Filho,Osvaldo.
The flavanone naringenin, an intermediate in flavonoid biosynthesis, was tested for its effect on root growth, phenylalanine ammonia-lyase (PAL) and peroxidase (POD) activities, as well as phenolic compounds and lignin contents in soybean (Glycine max L. Merrill) seedlings. Three-day-old seedlings were cultivated in half-strength Hoagland nutrient solution (pH 6.0), with or without 0.1 to 0.4 mM naringenin in a growth chamber (25°C, 12-h photoperiod, irradiance of 280 µmol m-2 s-1) for 24 h. Inhibitory effects on root growth (length, weight, cell viability), PAL and soluble POD activities were detected after naringenin treatments. These effects were associated with stimulatory activity of the cell wall-bound POD followed by an increase in the lignin...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allelopathy; Lignin; Flavonoid; Peroxidase; Phenylalanine ammonia-lyase; Root growth.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000300005

New flavonoid with antidiabetic and antioxidant potential from Tetrastigma angustifolia (Roxb.) Deb leaves
Provedor de dados: 60
Autores: Junejo,Julfikar Ali; Zaman,Kamaruz; Ali,Mohammed; Rudrapal,Mithun.
Ethnomedicinal survey documents the traditional practices of Tetrastigma angustifolia leaves in the management of diabetes in the North-eastern region of India. The present study was aimed at isolation of possible antidiabetic principle(s) from T. angustifolia leaves and evaluation of antidiabetic efficacy of isolated compound(s) in experimental animal model. The methanolic extract of T. angustifolia leaves was obtained by Soxhlet extraction method and subjected to silica gel column chromatography (100-200 mesh). Fraction 18-176 chloroform:methanol (70:30) yielded a pale yellow colored compound. The structure of pure compound was elucidated with the help of UV, IR, NMR and Mass spectrometric/techniques. The antioxidant activity of the isolated compound was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: T. angustifolia; Leaves; Flavonoid; Antidiabetic; Antioxidant; Lead molecule.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100633

Potential nutritional and antioxidant activity of various solvent extracts from leaves and stem bark of Anisophyllea laurina R. Br ex Sabine used in folk medicine
Provedor de dados: 60
Autores: Onivogui,Gbago; Zhang,Xiaodan; Diaby,Mohamed; Maomy,Clotaire Gna; Song,Yuanda.
ABSTRACT Anisophyllea laurina is a plant that has been used in folk medicine to treat malaria, dysentery, diabetes, toothache and various skin diseases. Leaves extract had protein content of 9.68% and a high calcium content of 25084.317 mg/100 g while stem bark extract was found to contain greater amounts of calcium (8560.96 mg/100 g), potassium (7649.47 mg/100 g), magnesium (1462.49 mg/100 g) and iron (973.33 mg/100 g). Palmitic acid, linolenic acid, linoleic acid and oleic acid were the most abundant fatty acids in leaves and stem bark extracts. Furthermore, total phenolic (2382.39 mg GAE /100 g) and total flavonoid (385.79 mg QE/100 g) contents were abundant in stem bark while leaves extract was rich in total tannin content (3466.63 mg CE/100 g)....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anisophyllea laurina/extract/ antioxidant activity; Anisophyllea laurina/extract/ total phenolic; Proximate composition; Flavonoid; Tannin.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502017000200631

Phenotypic diversity of pea (Pisum sativum L.) varieties and the polyphenols, flavonoids, and antioxidant activity of their seeds
Provedor de dados: 65
Autores: Zhao,Tianyao; Su,Wenjin; Qin,Yang; Wang,Liyun; Kang,Yufan.
ABSTRACT: Pea (Pisum sativum L.) is the fourth leading legume crop in the world, and its demand is increasing. In this study, the morphological characteristics (seed shape, seed surface, seed coat color, hilum color, cotyledon color, 100-seed weight and color values), total phenolic content (TPC), total flavonoid content (TFC), 2,2’-azinobis-(3-ethylbenzthiazoline-6-sulphonate) (ABTS) free radical scavenging capacity and ferric reducing antioxidant power (FRAP) of 75 pea cultivars were investigated. Results showed rich genetic diversity and a wide range of phenolic contents and antioxidant activities. Sixteen varieties enriched with phenolic contents and high antioxidant activities were screened out. A significant correlation was reported among color...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pea; Phenotypic diversity; Flavonoid; Antioxidant activity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000500402