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| Registros recuperados: 34 | |
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| Afzal,Hira; Ahmed,Sohail; Khan,Rashad Rasool; Sufian,Muhammad; Arshad,Muhammad; Qasim,Muhammad. |
| ABSTRACT The house fly, Musca domestica L. (Diptera: Muscidae), is a major pest of all aspects of life, like the domestic, medical and veterinary and causal agent of several pathogenic diseases. The present study was conducted to evaluate the potential of different insecticide-free baits against house fly by incorporating flower methanol extract of Helianthus annuus (sunflower) and Tegetes erecta (marigold) at 10%, 20% and 30% bait formulation of corn syrup, dried milk and water. However, imidacloprid and thiacloprid (each at 5% concentration) were also included in the study for comparison. Results showed that insecticide baits were superior in causing mortality of adult house fly but dependent upon syrup. Overall, 20% baits of both extracts caused more... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological control; Plant extracts; Synthetic insecticides; Disease vector. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262020000100217 |
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| Camargo,L.R.P.; Suffredini,I.B.. |
| Escherichia coli é uma bactéria presente no trato intestinal de animais de sangue quente. Entretanto, a perda do equilíbrio em sua relação com o hospedeiro pode causar doenças que levam a perdas econômicas, quando se trata de animais de produção, e perdas incalculáveis, quando se trata de animais silvestres. O presente estudo testou diversos extratos aquosos e orgânicos, obtidos de plantas da Amazônia brasileira, contra Escherichia coli (ATCC 25922). Usando o ensaio de disco difusão em ágar Mueller-Hinton (DDA), foram testados 1.791 extratos quanto à sua atividade antibacteriana. Os extratos que mostraram halo de inibição de crescimento bacteriano foram testados no modelo da microdiluição em caldo (MDBC) contra uma suspensão bacteriana preparada na escala... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Escherichia coli; Plant extracts; Pathogenicity. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000200041 |
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| Cardoso,PF; Scarpassa,JA; Pretto,LG; Otaguiri,ES; Yamada-Ogatta,SF; Nakazato,G; Perugini,MRE; Moreira,IC; Vilas-BÔas,GT. |
| Plants contain numerous constituents and are valuable sources of new biologically active molecules. Avocado (Persea americana Mill.) is cultivated and used as food in most tropical and subtropical countries. Its high nutritional value and biological activities, as antioxidant, antimicrobial and analgesic properties, have been thoroughly investigated. Interest in plant extracts with antimicrobial properties has increased as a result of the indiscriminate use of antibiotics, leading to the emergence of resistant bacterial strains. Among bacterial species with clinical importance to multiple hosts, Streptococcus agalactiae is outstanding, as it can cause infections especially in humans, fsh and cattle. Te current study aimed to evaluate the antimicrobial... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Plant extracts; Disk difusion method. |
| Ano: 2016 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572016000200007 |
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| Cauerhff,Ana; Castro,Guillermo R. |
| Background: In the past decade, considerable attention has been paid for the development of novel strategies for the synthesis of different kind of nano-objects. Most of the current strategies are usually working by the use physical or chemical principles to develop a myriad of nano-objects with multiple applications. Main fields of nanotechnology applications range from catalysis, micro- and nano-electronics (semiconductors, single electrons transistors), non-linear optic devices, photo-electrochemistry to biomedicine, diagnostics, foods and environment, chemical analysis and others. Results: Two main avenues for nanoparticles synthesis: cell-free extract and cell cultivation have been reported. The state of art of both biotechnological approaches for... |
| Tipo: Journal article |
Palavras-chave: Bacteria; Bionanoparticles; Fermentation; Fungi green chemistry; Plant extracts. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582013000300011 |
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| Cogo,Laura Lúcia; Monteiro,Cristina Leise Bastos; Miguel,Marilis Dallarmi; Miguel,Obdulio Gomes; Cunico,Miriam Machado; Ribeiro,Marcelo Lima; Camargo,Eloá Ramalho de; Kussen,Gislene Maria Botão; Nogueira,Keite da Silva; Costa,Libera Maria Dalla. |
| The antibacterial activity of plant extracts obtained from Bixa orellana L., Chamomilla recutita L., Ilex paraguariensis A. St.-Hil., Malva sylvestris L., Plantago major L. and Rheum rhaponticum L. has been evaluated against two reference strains and eleven clinical isolates of Helicobacter pylori. All the plant species chosen are used in popular Brazilian cuisine and folk medicine in the treatment of gastrointestinal disorders. Initial screening was made by the disk diffusion test and then minimum inhibitory concentration was determined by the agar dilution method. The results presented in this work demonstrated that among the plant preparations analyzed, B. orellana L., C. recutita L., I. paraguariensis A. St.-Hil. and M. sylvestris L. were capable of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Helicobacter pylori; Antibacterial activity; Plant extracts. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000200007 |
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| Corrêa,Carline Barroso; Veras,Galileu Crovatto; Silva,Giselle Paula Silva da; Brabo,Marcos Ferreira; Silva,Evaldo Martins. |
| Abstract: The objective of this work was to evaluate the performance, body composition, and physiological state of tambaqui (Colossoma macropomum) fingerlings fed diets containing different levels of green tea (Camellia sinensis) extract (GTE). A completely randomized design was used with five treatments, different levels of GTE (0.00, 0.05, 0.30, 0.55, and 0.80 g kg-1) and three replicates. The diets were offered to fingerlings twice a day, for 90 days. The increase of dietary GTE levels promoted a positive quadratic effect on body lipids, hepatic lipids, retention of body lipids, glucose, and total triglycerides, and the minimum values of these variables were estimated with 0.61, 0.54, 0.73, 0.60, and 0.30g kg-1 GTE in the diet, respectively. There was a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Camellia sinensis; Colossoma macropomum; Flavonoids; Lipid reduction; Phytotherapy; Plant extracts. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000500540 |
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| Cruz-Estrada,Angel; Gamboa-Angulo,Marcela; Borges-Argáez,Rocío; Ruiz-Sánchez,Esaú. |
| Background: The whitefly (Bemisia tabaci Genn.) is a widely distributed and highly harmful plant pest species. The management of B. tabaci has been typically carried out by chemical pesticides. In the last decade however, there has been an increasing interest in natural products, particularly those of plant origin, to control this pest species. In the present work, aqueous and ethanolic extracts of native plants from the flora of the Yucatán peninsula (Acalypha gaumeri, Annona squamosa, Carlowrightia myriantha, Petiveria alliaceae and Trichilia arborea) and the introduced plant Azadirachta indica were collected and evaluated for insecticidal activity against eggs and nymphs Bemisia tabaci. Results: Most of the aqueous and ethanolic extracts showed high... |
| Tipo: Journal article |
Palavras-chave: Annona squamosa; Bemisia tabaci; Botanical insecticides; Plant extracts; Petiveria alliaceae. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582013000100006 |
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| Emir,Ahmet; Emir,Ceren; Bozkurt,Buket; Onur,Mustafa Ali; Somer,Nehir Unver; Kaya,Gulen Irem. |
| ABSTRACT In the present study, a reversed-phase high-performance liquid chromatographic method has been used for the quantitative determination of lycorine in the aerial parts and bulbs of G. elwesii Hook. A simple method for the extraction of lycorine in low mass plant samples was employed utilizing pre-packed columns with diatomaceous earth (Extrelut(r)). The chromatographic separation was performed using an isocratic system with a mobile phase of trifluoroacetic acid-water-acetonitrile (0.01:92.5:7.5, v/v/v) applied at a flow rate 1 mL min-1 using diode array detector. The content of lycorine in the bulbs and aerial parts of G. elwesii collected from Demirci (Manisa) was found as 0.130 and 0.162 %, respectively. Additionally, in the bulbs of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alkaloids; Amaryllidaceae; Plant extracts; High Performance Liquid Chromatography/method validation; High Perfomance Liquid Chromatography/quantitative analysis.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502017000100603 |
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| Guerrero,Ricardo O; Mahmud,T; Khan,H; Casañas,Bárbara; Morales,Mara. |
| Summary Bangladesh is an Asian country where only 20 per cent of the people are provided with modern healthcare services while the rest 80 per cent are dependent on traditional plant-based systems. Moreover, it is estimated that only 500 medicinal plant species had been recorded in Bangladesh out of 1,900 species regarded as having medicinal value. Purpose: Sixteen collections of medicinal plants of different families were extracted with several solvents (Ethanol 95%, water, chloroform, ethyl ether). The resulting extracts were subjected to five different specific bioassays: 1. Brine shrimp lethality test; 2. Antioxidant activity; 3. Inhibition of xanthine oxidase (XO); 4. Inhibition of ß-glucosidase, and 5. Inhibition of acetylcholinesterase. Methods.... |
| Tipo: Journal article |
Palavras-chave: Bangladesh; Plant extracts; Brine shrimp lethality test; Antioxidant activity; Xanthine oxidase inhibition; SS-glucosidase inhibition; Acetylcholinesterase inhibition. |
| Ano: 2004 |
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47962004000200009 |
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| Hussein,Elsayed Alsaied Masoud; Mohammad,Ali Al-Hajry; Harraz,Farid Abourageh; Ahsan,Mohd Faisal. |
| Abstract Phytochemical content of plant extracts can be used effectively to reduce the metal ions to nanoparticles in one-step green synthesis process. In this study, six plant extracts were used for the synthesis of silver nanoparticles (AgNPs). Biologically synthesized AgNPs was characterized using UV-Vis Spectrophotometer, Field Emission Scanning Electron Microscope (FE-SEM), X-ray diffraction (XRD), Energy Dispersive X-ray spectroscopy (EDX) and Fourier Transform Infrared (FTIR) spectroscopy. The individual and combined effects of AgNPs and tetracycline against S. aureus and K. pneumoniae were assessed. Ginger, onion and sidr extracts supported AgNPs formation while arak, garlic and mint extracts failed to convert the silver ions to AgNPs. The present... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Silver nanoparticles; Biosynthesis; Plant extracts; Tetracycline; S. aureus; K. pneumoniae. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100308 |
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| Jadon,Kuldeep Singh; Shah,Rakesh; Gour,Hari Narayan; Sharma,Pankaj. |
| Abstract Sweet or bell pepper is a member of the Solanaceae family and is regarded as one of the most popular and nutritious vegetable. Blight, in the form of leaf and fruit blight, has been observed to infect bell pepper crops cultivated at the horticulture farm in Rajasthan College of Agriculture, Udaipur, India. Based on disease severity, we attempted to curb this newly emerged problem using different fungicides, plant extracts, bio-control agents, and commercial botanicals against the fungus in laboratory and pot experiments. Bio-control agent Trichoderma viride and plant growth promoting Rhizobacteria (PGPR) isolate Neist-2 were found to be quite effective against bell pepper blight. All evaluated fungicides, botanicals, commercial botanicals, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Plant extracts; Bio-control agents; Trichoderma; PGPR; Botanicals; Neem oil; Zatropin; Fungicides. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000401020 |
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| JAVAID,A.; AFZAL,L.; SHOAIB,A.. |
| ABSTRACT Macrophomina phaseolina, a soil-borne plant pathogen, has the ability to cause diseases in about 500 plant species. Unfortunately, so far no registered fungicide is available against this fungal pathogen. In the present study, different extracts of Sisymbrium irio, a weed of family Brassicaceae, were tested for evaluation of their antifungal activity against M. phaseolina. In screening bioassays, antifungal activity of methanolic extracts of 1% to 6% concentrations of different parts (leaf, stem, root and fruit) of the weed was assessed against the fungal pathogen. Methanolic leaf and root extracts significantly reduced fungal biomass up to 59% and 69% over control, respectively. Methanolic leaf and root extracts were further partitioned using... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antifungal activity; London rocket; Plant extracts. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100255 |
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| 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 |
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| LUCENA,DAIANE C.; BERTHOLDO-VARGAS,LUCIA R.; SILVA,WILSON C.; MACHADO,AARON F.; LOPES,TAMIRIS S.; MOURA,SIDNEI; BARROS,NEIVA M.. |
| ABSTRACT Piper aduncum found naturally in the Amazon and southeastern Brazil, is known for its secondary metabolites that have activity on insects. Anticarsia gemmatalis and Spodoptera frugiperda are among the major insect pests associated with agricultural production. This research evaluated the biological activity of hexane, ethyl acetate, and ethanol extracts of P. aduncum leaves on mortality and duration of larval and pupal periods, as well as weight, width, and length of A. gemmatalis and S. frugiperda pupae. The mortality of A. gemmatalis larvae in trials with P. aduncum extracts were 93.3% (hexane) and 90% (ethyl acetate), estimating LC50 of 6.35 and 5.79 mg/mL, respectively. Mortality in S. frugiperda submitted to the hexane extract ranged from... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fall armyworm; Velvetbean caterpillar; Pest management; Plant extracts. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000401869 |
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| Registros recuperados: 34 | |
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