Consulta: subjectFacets:"Saponins"
Registros recuperados: 13
Data/hora: 11/06/2024 02:44:02

Ensaio quantitativo para determinação de saponinas.
Provedor de dados: 14
Autores: ARAUJO, A. M. de; SALLES, H. O.
bitstream/item/221051/1/CNPC-2020-Art-36.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Saponina; Saponins.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128196

Étude des saponines isolées d'une espèce d'holothurie &lt;Holothuria tubulosa&gt; de la lagune de Bizerte
Provedor de dados: 20
Autores: Tekitek, A.; Sellem, F.; Langar, H.; El Abed, A.; Louiz, I.
قمنا في هذا البحث باستخلاص عدد من الصابونيات من صنف من اصناف خيار البحر المتواجدة ببحيرة بنزرت وهي (اولوتيغيا تيبيلوزا)  &lt;tubulosa Holothuria&gt; وتمت دراسة هذه المواد المستخلصة حسب مرحلة النضوج الجنسي و تم كذلك اثبات ان هذا المستحضر ذو مفعول بيولوجي اذ تسبب في انحلال كريات الدم الحمراء
Tipo: Journal Contribution
Palavras-chave: Cadmium; Chemical extraction; Cytotoxicity; Saponins; Cadmium; Http://aims.fao.org/aos/agrovoc/c_1178.
Ano: 2003
URL: http://hdl.handle.net/1834/1129

Alternatives for methane emission mitigation in livestock systems
Provedor de dados: 96
Autores: Lascano,Carlos E.; Cárdenas,Edgar.
Human activities are contributing to Global Climate Change through the production of Green House Gases (GHG), which result in increased air, land and ocean temperatures and extreme changes in precipitation in regions of low and high rainfall. The most important GHG's are carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O). It is estimated that 18 % of the annual GHG emissions come from different types of livestock and that 37% of CH4, with higher global warming potential (23) relative to CO2 (1), comes from fermentation processes in ruminants. It is possible that in the future beef and milk exports from producing countries is subject to bans if cattle systems do not comply with measures to reduce GHG. There are several alternatives available and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Climate change; Defaunation; Feed chemical additives; Genetic transformation of bacteria; Greenhouse gases; Immunization; Saponins; Tannins.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010001300020

Quantification, chemical and biological characterization of the saponosides material from Sida cordifolia L. (escobilla)
Provedor de dados: 98
Autores: Velásquez Ballesteros,Oscar Julián; Murillo Perea,Elizabeth; Jairo Méndez,John; Murillo Arango,Walter; Noreña,Diana Alexandra.
Introduction: Sida cordifolia L. (Malvaceae) is a weed about which not much is known in Colombia. This plant is used in folk medicine to treat oral mucosa, blennorrhea, asthma and bronchitis.In Brazil it finds application as an anti-inflammatory,while in Colombia its "baba" is used for treating hair loss, constipation and internal fever, among other ailments. Objectives: to quantify the saponoside content and evaluate its antioxidant and antifungal functionality. Methods: we prepared organic, aqueous and hydroalcoholic extracts from the aerial section of the plant. The saponoside material was quantified by the DNS and p-anisaldehyde methods. The most concentrated extracts were selected for antioxidant and antifungal assays. Results: it was found that Sida...
Tipo: Journal article
Palavras-chave: Sida cordifolia; Saponins; Weed; Antioxidant; P-anisaldhyde.
Ano: 2013
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47962013000200013

A comparative study of phytoconstituents and antibacterial activity of in vitro derived materials of four Passiflora species
Provedor de dados: 42
Autores: J. SIMÃO,MARIELA; J.S. BARBOZA,THIAGO; G. VIANNA,MARCELA; GARCIA,RENATA; MANSUR,ELISABETH; P.R. IGNACIO,ANA CLAUDIA; PACHECO,GEORGIA.
Abstract Passiflora species are well known for their common use in popular medicine for the treatment of several diseases, such as insomnia, anxiety, and hysteria, in addition to their anti-inflammatory, antioxidant, analgesic and antibacterial potential. However, few data about the chemical composition and the medicinal potential of in vitro derived materials are available. Therefore, the goal of this work was to compare, for the first time, the phytoconstituents of in vitro derived materials of four Passiflora species, and evaluate the antibacterial potential of their extracts against 20 Gram-positive and negative strains. Chromatographic analysis indicated the presence of saponins in roots extracts from all studied species, whereas leaf extracts...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antibacterial; Chromatography; Flavonoids; Passiflora; Saponins.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000602805

Antifungal activity of the extracts and saponins from Sapindus saponaria L.
Provedor de dados: 42
Autores: Tsuzuki,Joyce K.; Svidzinski,Terezinha I.E.; Shinobu,Cristiane S.; Silva,Luiz F.A.; Rodrigues-Filho,Edson; Cortez,Diógenes A.G.; Ferreira,Izabel C.P.
Extracts from the dried pericarp of Sapindus saponaria L. (Sapindaceae) fruits were investigated for their antifungal activity against clinical isolates of yeasts Candida albicans and C. non-albicans from vaginal secretions of women with Vulvovaginal Candidiasis. Four clinical isolates of C. albicans, a single clinical isolated of each of the species C. parapsilosis, C. glabrata, C. tropicalis, and the strain of C. albicans ATCC 90028 were used. The hydroalcoholic extract was bioactivity-directed against a clinical isolate of C. parapsilosis, and showed strong activity. The n-BuOH extract and one fraction showed strong activity against all isolates tested. Further column-chromatography on silica gel separation of this fraction afforded two pure triterpene...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sapindaceae; Sapindus saponaria; Saponins; Antifungal activity; Candida.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652007000400002

Investigations of anticholinestrase and antioxidant potentials of methanolic extract, subsequent fractions, crude saponins and flavonoids isolated from Isodon rugosus
Provedor de dados: 48
Autores: Zeb,Anwar; Sadiq,Abdul; Ullah,Farhat; Ahmad,Sajjad; Ayaz,Muhammad.
BACKGROUND: Based on the ethnomedicinal uses and the effective outcomes of natural products in various diseases, this study was designed to evaluate Isodon rugosus as possible remedy in oxidative stress, alzheimer's and other neurodegenerative diseases. Acetylecholinestrase (AChE) and butyrylcholinesterase (BChE) inhibitory activities of crude methanolic extract (Ir.Cr), resultant fractions (n-hexane (Ir.Hex), chloroform (Ir.Cf), ethyl acetate (Ir.EtAc), aqueous (Ir.Aq)), flavonoids (Ir.Flv) and crude saponins (Ir.Sp) of I. rugosus were investigated using Ellman's spectrophotometric method. Antioxidant potential of I. rugosus was determined using DPPH, H2O2 and ABTS free radicals scavenging assays. Total phenolic and flavonoids contents of plant extracts...
Tipo: Journal article
Palavras-chave: Anticholinesterase; Antioxidant; Flavonoids; Phenolics; Saponins; Isodon rugosus.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602014000100070

Extraction of saponins and toxicological profile of Teucrium stocksianum boiss extracts collected from District Swat, Pakistan
Provedor de dados: 48
Autores: Shah,Syed Muhammad Mukarram; Sadiq,Abdul; Shah,Syed Muhammad Hassan; Khan,Shahzeb.
BACKGROUND: The current era is facing challenges in the management of neoplasia and weeds control. The currently available anti-cancer and herbicidal drugs are associated with some serious side effects. Therefore numerous researchers are trying to discover and develop plant based alternative particularly for the rational management of cancer and weed control. Teucrium stocksianum possess antioxidant and analgesic activities. The current study was designed to evaluate crude saponins (CS), methanolic extract and sub-fractions of T. stocksianum for cytotoxic and phytotoxic potentials. CS, methanolic extract and sub-fractions were extracted from powdered plant material using different solvents. Cytotoxic potential of the extracts at a dose of 10, 100 and 1000...
Tipo: Journal article
Palavras-chave: Saponins; Teucrium stocksianum; Cytotoxicity; Phytotoxicity.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602014000100059

Antitumor and anti-angiogenic potentials of isolated crude saponins and various fractions of Rumexhastatus D. Don
Provedor de dados: 48
Autores: Ahmad,Sajjad; Ullah,Farhat; Ayaz,Muhammad; Zeb,Anwar; Ullah,Farman; Sadiq,Abdul.
BACKGROUND: Cancer, being the foremost challenge of the modern era and the focus of world-class investigators, gargantuan research is in progress worldwide to explore novel therapeutic for its management. The exploitation of natural sources has been proven to be an excellent approach to treat or minify the excessive angiogenesis and proliferation of cells. Similarly, based the ethnomedicinal uses and literature survey, the current study is designed to explore the anti-tumor and anti-angiogenic potentials of Rumex hastatus. Anti-tumor and anti-angiogenic activities were carried out using potato-disc model and chorioallantoic membrane (CAM) assay respectively. Moreover, R. hastatus was also assessed for antibacterial activity against Agrobacterium...
Tipo: Journal article
Palavras-chave: Rumex hastatus; Agrobacterium tumefaciens; Saponins; Angiogenesis; Tumor.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602016000100018

Effect of aqueous and alcohol extracts of Phytolacca tetramera (Phytolaccaceae) leaves on Colletotrichum gloeosporioides (Ascomycota)
Provedor de dados: 51
Autores: Hernández¹,Marcelo; Murace,Mónica; Ringuelet,Jorge; Petri,Inés; Gallo,Daniel; Arambarri,Ana.
Phytolacca tetramera Hauman "ombusillo" is an endemism of southeastern Buenos Aires province (Argentina). This species has fungicidal action against opportunistic pathogens of humans. In order to search natural alternatives for the control of diseases in plants caused by fungi, the objective was to evaluate the effects of aqueous and alcohol extracts of P. tetramera leaves on Colletotrichum gloeosporioides (Penz.) Sacc. This fungus has a wide distribution in different species with agricultural, forestry, and ornamental value. The antifungal activity of aqueous and ethanol leaf extracts was assessed in vitro against fungi. The fungus was subjected to two types of extracts already incorporated into the Potato Dextrose Agar (PDA) medium at 5-50%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antifungal activity in vitro; Biological control; Ombusillo; Phytolaccaceae; Saponins.
Ano: 2013
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722013000200003

Evaluation of foam properties of saponin from Ilex paraguariensis A. St. Hil. (Aquifoliaceae) fruits
Provedor de dados: 60
Autores: Canto,Gizele Scotti do; Treter,Janine; Yang,Samanta; Borré,Gustavo Luís; Peixoto,Maria Paula Garofo; Ortega,George González.
Saponins are natural compounds able to form abundant foam, a desirable quality required in some chemical, foods, cosmetic and pharmaceutical processes. Ilex paraguariensis A. St. Hil. (Aquifoliaceae) known as mate, is a South American widely cultivated specie due to the preparation of a tea-like beverage from its leaves. Moreover, its green fruits are a rich source of non-toxic and very low haemolytic saponins. In this study, mate saponin fraction (MSF) was evaluated as a foam former, focusing on its foamability, foam lifetime, and film drainage in the presence of different electrolytes (ionic strength I = 0.024 M). Sodium dodecyl sulphate (SDS) and polysorbate 80 (Poly-80) were used as reference surfactants. The critical micelle concentration (CMC), the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ilex paraguariensis; Aquifoliaceae; Mate; Saponins; Surfactants; Foam; Assay.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502010000200010

Molluscicidal effects of saponin-rich plant extracts on the grey field slug
Provedor de dados: 118
Autores: González-Cruz,Diego; San Martín,Ricardo.
D. Gonzalez-Cruz, and R. San Martin. 2013. Molluscicidal effects of saponin-rich plant extracts on the grey field slug. Cien. Inv. Agr. 40(2): 341-349. Slug control is a major concern in crop fields because these mollusks consume and damage plants that are destined for human consumption and ornamentation. The grey field slug Deroceras reticulatum (Müller, 1774) is one of the most commonly occurring mollusks with agronomic importance, consuming up to 80% of the leaf surface of raps and other crops. The major difficulty in slug control is that the main products used for this purpose can also endanger non-target animals, such as pets and birds. New methods of control that are naturally based and environmental friendly are urgently required, both for the...
Tipo: Journal article
Palavras-chave: Biopesticides; Camellia; Quillaja; Deroceras; Saponins; Slugs.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202013000200009

Different leaf extracts from Brunfelsia uniflora in mice
Provedor de dados: 65
Autores: Carvalho,Ciro José Sousa de; Melo,Marília Martins; Michell,Ana Flávia Ribeiro Machado; Torres,Bruno Benetti Junta; Riet-Correa,Franklin; Guedes,Roberto Maurício Carvalho; Ferraz,Vany Perpetua; Soto-Blanco,Benito; Silva,Silvana Maria Medeiros de Sousa.
ABSTRACT: In Brazil, at least 16 poisonous plant species can affect the central nervous system of livestock. Recently in the state of Piauí, Northeastern Brazil, Brunfelsia uniflora was reported as a cause of nervous signs in donkeys, cattle, and small ruminants. In order to assess the toxicity of B. uniflora extracts, 20 Swiss mice were distributed into four groups (n=5) receiving by gavage alkaloids, flavonoids, saponins, or saline (control group). After administration of the extracts in a single dose (5g kg-1), all mice were observed daily for clinical signs. Mice that received the extracts showed moderate to severe clinical signs, including piloerection, vocalization, and seizures. All mice dosed with saponins died between 10 and 20min after...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Toxicity; Alkaloids; Saponins; Flavonoids; Brunfelsia; Solanaceae.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000100552