Consulta: subjectFacets:"Phytochemicals"
Registros recuperados: 18
Data/hora: 04/06/2024 05:26:52

Caracterização fitoquímica dos extratos bruto e aquoso da polpa e da casca de pitaya vermelha (Hylocereus polyrhizus).
Provedor de dados: 14
Autores: LIRA, S. M.; COELHO, L. C.; MARQUES, C. G.; HOLANDA, M. O.; DANTAS, J. B.; LIMA, A. C. V. DE; SANTOS, G. B. M.; SILVA, G. S. DA; ABREU, F. A. P. de; DIONISIO, A. P.; ZOCOLO, G. J.; GUEDES, M. I. F.
bitstream/item/211201/1/CLV19050.pdf
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Fitoquimicos; Pitaya vermelha; Phytochemicals; Red pitaya; Pitaya; Extrato Vegetal; Plant extracts.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120456

Lantana camara: Phytochemical Analysis and Antifungal Prospective
Provedor de dados: 87
Autores: BASHIR,S.; JABEEN,K.; IQBAL,S.; JAVED,S.; NAEEM,A.
ABSTRACT: In the current study phytochemical analysis and in vitro antifungal potential of fruits, leaves and stem of Lantana camara L. were studied. The phytochemical analysis indicated the presence of alkaloids, flavonoids, tannins, saponins, glycosides and terpenoids in fruit, stem and leaves of L. camara. The in vitro antifungal activity of fruit, stem and leaves of L. camara was tested against Colletotrichum gloeosporioides Penz. Different concentrations (1-5%) of methanolic extract of all the selected parts of L. camara were applied in vitro against the test fungus. The results of in vitro experiment revealed that higher concentration of methanolic fruit extract (5%) significantly reduced the biomass C. gloeosporioides up to 66%. This effective...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anthracnose; Bioactivity; Colletotrichum gleosporioides; GC-MS; Phytochemicals.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100167

Physical and chemical characteristics of melon in organic farming
Provedor de dados: 91
Autores: Kohn,Rosete A. G.; Mauch,Carlos R.; Morselli,Tânia B. G. A.; Rombaldi,Cesar V.; Barros,Willian S.; Sorato,V.
Melon farming is characterized as an important family agriculture activity and the organic production of fruits and vegetables has shown a large growth in terms of areas in Brazil and around the world. This work aimed to study the postharvest quality of melon cultivated in an organic system. The organic treatments constituted of base fertilizer with cattle manure vermicompost (recommended dose, ½ dose and double dose) plus the use of biofertilizer (sprayed or sprayed + irrigated), and an additional treatment with chemical fertilization. The postharvest quality was evaluated through physico-chemical and phytochemical attributes. The organic management with half the recommended dose of vermicompost plus the sprayed biofertilizer and the chemical...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cucumis melo var. inodorus; Organic fertilization; Postharvest; Quality; Phytochemicals.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662015000700656

BIOACTIVE COMPOUNDS IN CONVENTIONAL AND NO ADDED SUGARS RED STRAWBERRY GUAVA (Psidium cattleianum Sabine) JELLIES
Provedor de dados: 94
Autores: REISSIG,GABRIELA NIEMEYER; VERGARA,LISIANE PINTANELA; FRANZON,RODRIGO CEZAR; RODRIGUES,ROSANE DA SILVA; CHIM,JOSIANE FREITAS.
ABSTRACT  This study aimed to prepare jellies of conventional type of red strawberry guava (with added sucrose) and no added sugar and evaluate the physical and chemical composition and content of bioactive compounds in them. Four jellies formulations were prepared: conventional with addition of sucrose (F1), aspartame (F2), saccharin and cyclamate (F3), acesulfame and sucralose (F4). Physicochemical analysis of pH were carried out, as well as analysis of titratable acidity, total soluble solids, ashes, proteins, lipids, moisture, carbohydrates, calories, lightness, color tone, total phenols, anthocyanins, carotenoids, ascorbic acid and antioxidant activity, by the capture of DPPH and ABTS radicals. Conventional and no added sugars jellies did not differ...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Native fruits; Processing; Phytochemicals; Special purpose foods.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452016000300901

Effect of different fermentation processes on the phytochemical properties of green table Olives
Provedor de dados: 94
Autores: Rababah,Taha M.; Al- u’datt,Muhammad; Al-Mahasneh,Majdi; Gammoh,Sana; Mahili,Hana’a; Ajouly,Tha’er.
Abstract  Most olive varieties are grown in Jordan using Baladi, Nabali, Crosodi and k18 table olives. This study evaluated the effect of de-bittering fermentation methods on the total phenolic, flavonoid contents, and antioxidants. The phytochemical results of fresh and fermented table olives showed significant decrease after fermentation process and during three months of storage. Baladi fresh table olive presented the highest phenol content (350.9mg GAE/100g) followed by Nabali, Crosodi and k18 varieties, respectively. The highest antioxidant value was found in Baladi variety (42.2%) followed by k18, Crosodi and Nabali varieties, respectively. Crosodi fresh table olive presented the highest flavonoid content (107.4 mg CE/100G), followed by k18, Nabali...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Table olives; Phytochemicals; Fermentation; De-bittering.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452020000100901

Bioactive compound retention in frozen red and yellow Strawberry guava pulps added with L-Ascorbic acid
Provedor de dados: 94
Autores: Vergara,Lisiane Pintanela; Reissig,Gabriela Niemeyer; Franzon,Rodrigo Cezar; Rodrigues,Rosane da Silva; Chim,Josiane Freitas.
Abstract  Brazil presents a great variety of native fruits, which have aroused commercial interest, such as the strawberry guava. In this sense, many researches have looked for alternatives that allow postharvest availability of fruits, considering that perishability is a limiting factor for its commercialization. The freezing process is an important alternative in the sense of making these fruits available for longer on the market. The use of L-ascorbic acid is a potent protective agent in the stability of bioactive compounds in fruit pulps. The objective of this study was to evaluate potentially bioactive compounds present in red and yellow strawberry guava pulps added with L-ascorbic acid (1% m / m) and verify its effect on retention of these compounds...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Native fruits; Psidium cattleianum Sabine; Phytochemicals; Antioxidant; Storage.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000600301

Association between glucosinolate concentration and injuries caused by cabbage stink bugs Eurydema spp. (Heteroptera: Pentatomidae) on different Brassicas - doi: 10.4025/actasciagron.v35i1.15622
Provedor de dados: 1
Autores: Bohinc, Tanja; University of Ljubljana; Hrastar, Robert; Slovenian Institute of Hop Research and Brewing; Košir, Iztok Jože; Slovenian Institute of Hop Research and Brewing; Trdan, Stanislav; University of Ljubljana.
In 2010, we were determining the contents of glucosinolates in different Brassicas in order to study their influence on feeding of cabbage stink bugs (Eurydema spp.) and the consequent extent of damage. We confirmed that glucosinolates content depends on plant species, plant organs and the time of sampling. In the samples aliphatic glucosinolates (glucoiberin, progoitrin, epiprogoitrin, epiprogoitrin, sinigrin, gluconapin, glucoraphenin, sinalbin) prevailed. Glucobrassicin, an important indolic glucosinolate compound, was detected in all tested Brassicas. Its concentration in the oil radish samples was highest during the first assessment (30 DAS), 8.84 ± 0.65 µmol g-1 ds, while the oilseed rape samples displayed lowest concentration during the last...
Tipo: Fieldwork and laboratory analysis
Palavras-chave: Phytochemicals; Cabbage stink bugs; Cabbage; White mustard oil radish  white mustard Phytochemicals; Cabbage stink bugs; Cabbage; White mustard.
Ano: 2012
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/15622

TOTAL PHENOLIC CONTENT AND ANTIOXIDANT CAPACITY OF NON-NATIVE WINE GRAPES GROWN IN ZACATECAS, MEXICO
Provedor de dados: 115
Autores: Franco-Bañuelos,Ambrosio; Contreras-Martínez,Cristina S.; Carranza-Téllez,José; Carranza-Concha,José.
Abstract The production of non-native wine grapes (Vitis vinifera L.) in Zacatecas, Mexico has increased in recent years; however, information about their chemical composition is not yet available. Polyphenols are associated with the antioxidant capacity of grapes due to their beneficial health effects. Therefore, the aim of this study was to evaluate the total phenolic content (TPC) and the antioxidant capacity (AC) of non-native wine grapes grown in Zacatecas, México. The AC and TPC of 4 white grape varieties and 4 red grape varieties were analyzed. Experimental design was completely randomized with three replications and the data was analyzed using ANOVA and compared with Tukey test (p≤0.05). Pearson’s correlation and linear regression were calculated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Wine grape cultivars; Phytochemicals; Antioxidant activity.
Ano: 2017
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952017000600661

Optimization of Phenolics and Flavonoids Extraction Conditions and Antioxidant Activity of Roasted Yerba-Mate Leaves (Ilex paraguariensis A. St.-Hil., Aquifoliaceae) using Response Surface Methodology
Provedor de dados: 42
Autores: BASSANI,DÉBORA C.; NUNES,DOMINGOS S.; GRANATO,DANIEL.
This study focused on maximizing the extraction of total phenolics and flavonoids as well as the antioxidant activity measured by the 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay from roasted yerba mate (Ilex paraguariensis) as a function of time (5, 7.5 and 10 min) and temperature of extraction (60, 75 and 90°C). The data were subjected to Response Surface Methodology and the results showed that polynomial equations were significant, did not present lack of fit, and presented adjusted determination coefficients above 98%, proving their suitability for prediction purposes. Using the desirability function, the optimum operating conditions to obtain a higher extraction of antioxidants was found to be 10 min of extraction at 90°C, and the tea prepared under...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phenolic composition; Correlation analysis; Desirability function; Phytochemicals; Functional foods.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000200923

Phenolic compounds and vitamins in wild and cultivated apricot (Prunus armeniaca L.) fruits grown in irrigated and dry farming conditions
Provedor de dados: 48
Autores: Kan,Tuncay; Gundogdu,Muttalip; Ercisli,Sezai; Muradoglu,Ferhad; Celik,Ferit; Gecer,Mustafa Kenan; Kodad,Ossama; Zia-Ul-Haq,Muhammad.
BACKGROUND: Turkey is the main apricot producer in the world and apricots have been produced under both dry and irrigated conditions in the country. In this study, phenolic compounds and vitamins in fruits of one wild (Zerdali) and three main apricot cultivars ('Cataloglu', 'Hacihaliloglu' and 'Kabaasi') grown in both dry and irrigated conditions in Malatya provinces in Turkey were investigated. RESULTS: The findings indicated that higher content of phenolic compounds and vitamins was found in apricot fruits grown in irrigated conditions. Among the cultivars, 'Cataloglu' had the highest rutin contents both in irrigated and dry farming conditions as 2855 µg in irrigated and 6952 µg per 100 g dried weight base in dry conditions and the highest chlorogenic...
Tipo: Journal article
Palavras-chave: Apricot; Phytochemicals; Ripening; Irrigation; HPLC.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602014000100046

Assessment of the phytochemical constituents and antioxidant activity of a bloom forming microalgae Euglena tuba
Provedor de dados: 48
Autores: Chaudhuri,Dipankar; Ghate,Nikhil Baban; Deb,Shampa; Panja,Sourav; Sarkar,Rhitajit; Rout,Jayashree; Mandal,Nripendranath.
BACKGROUND: Unstable generation of free radicals in the body are responsible for many degenerative diseases. A bloom forming algae Euglena tuba growing abundantly in the aquatic habitats of Cachar district in the state of Assam in North-East India was analysed for its phytochemical contents, antioxidant activity as well as free radical scavenging potentials. RESULTS: Based on the ability of the extract in ABTS•+ radical cation inhibition and Fe3+ reducing power, the obtained results revealed the prominent antioxidant activity of the algae, with high correlation coefficient of its TEAC values to the respective phenolic and flavonoid contents. The extract had shown its scavenging activity for different free radicals and 41.89&amp;#8201;±&amp;#8201;0.41...
Tipo: Journal article
Palavras-chave: Euglenoid; Phytochemicals; Free radical scavenging; Antioxidant; Reducing power.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602014000100024

In vitro antioxidant capacity and free radical scavenging evaluation of active metabolite constituents of Newbouldia laevis ethanolic leaf extract
Provedor de dados: 48
Autores: Habu,Josiah Bitrus; Ibeh,Bartholomew Okechukwu.
^len
Tipo: Journal article
Palavras-chave: Newbouldia laevis; Phytochemicals; Ethanolic extraction; Antioxidants; Free radical scavengers; Bioactive constituents.
Ano: 2015
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602015000100016

Probing the Pharmacological Parameters, Molecular Docking and Quantum Computations of Plant Derived Compounds Exhibiting Strong Inhibitory Potential Against NS5 from Zika Virus
Provedor de dados: 52
Autores: Rasool,Nouman; Jalal,Amir; Amjad,Adnan; Hussain,Waqar.
ABSTRACT Zika virus (ZIKV) is known for microcephaly and neurological disease in humans and the nonstructural proteins of ZIKV play a fundamental role in the viral replication. Among the seven nonstructural proteins, NS5 is the most conserved and largest protein. Two major functional domains of NS5 i.e. methyltransferase (MTase) and RNA-dependent RNA polymerase (RdRp) are imperative for the virus life cycle and survival. The present study explicates the inhibitory action of phytochemicals from medicinal plants against NS5 from ZIKV, leading to the identification of potential inhibitors. The crystal structure of the protein is retrieved from RCSB protein data bank. A total of 2035 phytochemicals from 505 various medicinal plants are analysed for their...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ZIKV-NS5; Phytochemicals; Molecular Docking; DFT calculations.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000100324

In Silico Target Identification and Validation for Antioxidant and Anti-inflammatory Activity of Selective Phytochemicals.
Provedor de dados: 52
Autores: Rana,Shikha; Dixit,Savita; Mittal,Alok.
Abstract Phytochemicals present in plant extract include a number of biological active compounds which have shown promising antioxidant and anti-inflammatory activities in many animal studies. Present knowledge about the biochemical interactions of these compounds present in phytochemical extracts and target enzymes or proteins responsible for antioxidant and anti-inflammatory activity is limited. Present work is an attempt to identify and validate possible biological targets as enzymes or proteins involved in these targeted studies using molecular docking as computational method. IMPPAT: Indian Medicinal Plants, Photochemistry and Therapeutics (a curated database) has been used to retrieve various phytochemicals derived from selected plants which includes...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Target identification and validation; Phytochemicals; Antioxidant activity; Anti-inflammatory activity; Molecular docking.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100431

Bactericidal antibiotic-phytochemical combinations against methicillin resistant Staphylococcus aureus
Provedor de dados: 58
Autores: Kyaw,Bhone Myint; arora,Shuchi; Lim,Chu Sing.
Methicillin resistant Staphylococcus aureus (MRSA) infection is a global concern nowadays. Due to its multi-drug resistant nature, treatment with conventional antibiotics does not assure desired clinical outcomes. Therefore, there is a need to find new compounds and/or alternative methods to get arsenal against the pathogen. Combination therapies using conventional antibiotics and phytochemicals fulfill both requirements. In this study, the efficacy of different phytochemicals in combination with selected antibiotics was tested against 12 strains of S. aureus (ATCC MRSA 43300, ATCC methicillin sensitive S. aureus or MSSA 29213 and 10 MRSA clinical strains collected from National University Hospital, Singapore). Out of the six phytochemicals used, tannic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phytochemicals; Antibiotic combinations; Synergism; Antibiotic resistance; Methicillin-resistance Staphylococcus aureus (MRSA).
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000300013

An in silico investigation of phytochemicals as potential inhibitors against non-structural protein 1 from dengue virus 4
Provedor de dados: 60
Autores: Qaddir,Iqra; Majeed,Arshia; Hussain,Waqar; Mahmood,Sajid; Rasool,Nouman.
Dengue fever has emerged as a big threat to human health since the last decade owing to high morbidity with considerable mortalities. The proposed study aims at the in silico investigation of the inhibitory action against DENV4-NS1 of phytochemicals from two local medicinal plants of Pakistan. Non-Structural Protein 1 of Dengue Virus 4 (DENV4-NS1) is known to be involved in the replication and maturation of viron in the host cells. A total of 129 phytochemicals (50 from Tanacetum parthenium and 79 from Silybum marianum) were selected for this study. The tertiary structure of DENV4-NS1 was predicted based on homology modelling using Modeller 9.18 and the structural stability was evaluated using molecular dynamics simulations. Absorption, distribution,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: DENV4-NS1; Phytochemicals; Molecular Docking; Molecular Dynamics Simulations; Druglikeness.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100593

Influence of osmotic dehydration on bioactive compounds, antioxidant capacity, color and texture of fruits and vegetables: a review
Provedor de dados: 65
Autores: Landim,Ana Paula Miguel; Barbosa,Maria Ivone Martins Jacintho; Júnior,José Lucena Barbosa.
ABSTRACT: Osmotic dehydration (OD) is a conservation technique applied to foodstuffs, which promotes partial reduction of water, extends their shelf life and reduces both post-harvest losses and changes in product characteristics. Currently, it has been given emphasis on trying to understand how the process affects the quality of processed vegetables, because process variables can interfere in their antioxidant capacity, color and texture. Moreover, the antioxidant capacity can be affected by chemical changes, leaching losses, reduced moisture and solid gain as well as the present bioactive in the profile of the performed analysis method. In color, the overall changes are caused by temperature increase, which can cause enzymatic and/or non-enzymatic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Processing; Quality; Phytochemicals.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001001714

Cassava starch edible coating incorporated with propolis on bioactive compounds in strawberries
Provedor de dados: 64
Autores: Thomas,Ariela Betsy; Nassur,Rita de Cássia Mirela Resende; Boas,Ana Carolina Vilas; Lima,Luiz Carlos de Oliveira.
ABSTRACT Strawberry is a fruit appreciated throughout the world due to its attractive quality attributes and stands out due to its high phenolic compound content, which positively contribute to biological properties of nutritional interest. The objective of this study was to evaluate the effect of cassava starch coatings incorporated with propolis combinations on the phytochemical content and the maintenance and increase of the strawberry antioxidant activity. The treatments were 3% cassava starch (CS), 3% cassava starch + 33% ethanolic propolis extract (CS + P33%), 3% cassava starch + 66% ethanolic propolis extract (CS + P66%) and control (C). The fruits were stored at 4 °C ± 0.5 ºC and 90%RH for 16 days, making up a completely randomized design with 4...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phytochemicals; Antioxidant; Fragaria ananassa.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542016000100087