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Wyszukujesz frazę "ethanolic extract" wg kryterium: Wszystkie pola

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    Tytuł:
    Antimycobacterial activity of ethanolic extract of Artemisia absinthium L.
    Autorzy:
    Hojageldiyev, T.
    Bolmammedov, Y.
    Gurbanaliyev, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1075710.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Artemisia absinthium
    Mycobacteria tuberculosis
    Mycobacterium tuberculosis
    antimycobacterial
    ethanolic extract
    Opis:
    It is known that, drugs used in the treatment of tuberculosis show toxic effect to organism especially to liver beside its therapeutic effect. Because of ineffectiveness of drugs used in the treatment regimen of tuberculosis against multidrug resistance (MDR) and extensively drug-resistance (XDR) tuberculosis requires the development of new treatment methods and new novel drugs. Considering the usage of Artemisia absinthium in traditional medicine in treatment of wounds which suggests its antibacterial activity it seems that, also it may have significant antimycobacterial activity. The objective of present study was to evaluate antibacterial activity of ethanolic extract of A. absinthium against M. tuberculosis. In this study, the effect of ethanolic extract of A. absinthium was tested against tuberculosis and pharmaco-toxicological properties evaluated on laboratory animals. The 20%, 40%, 70% and 96% ethanolic extracts of A. absinthium prepared then its bacteriostatic and bactericidal activities were evaluated by validated methods. Data were analyzed by GraphPad Prism 7.0 at the level P<0.05. Results showed that ethanolic extracts of A. absinthium show no toxicological properties with having high LD50. All concentrations of extract show high bacteriostatic activity on M. tuberculosis. 96% ethanolic extract has highest bactericidal effect among other concentrations. By conducting further studies, as a results of our study, antimycobacterial drug can be prepared from A. absinthium.
    Źródło:
    World Scientific News; 2019, 119; 224-230
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Antidepressant activity of ethanolic extract of oleo gum resins of Ferula asafoetida Linn
    Autorzy:
    Kumar, T. Bharath
    Reddy, V. Jayasankar
    Rushendran, R.
    Mamatha, T.
    Roja, J.
    Roopavani, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/972623.pdf
    Data publikacji:
    2017
    Wydawca:
    Instytut Medycyny Wsi
    Tematy:
    antidepressant activity
    models of depression
    brain monoamines
    antioxidant activity
    Ferula asafoetida
    Opis:
    Objective. The study was undertaken to evaluate the antidepressant activity of ethanolic extract of Ferula asafoetida oleo gum resins. Materials and Methods. Five groups of rats (180–200g) and mice (20–30g) of both genders, each group comprising six animals, were used (i.e., normal, positive control, standard, FAEE 200mg/kg, and FAEE 400mg/kg treated groups). Forced swimming test (FST), Tail suspension test (TST), Potentiation of Norepinephrine-Induced Toxicity (PNEIT), Haloperidol- Induced Catalepsy (HIC), and Reserpine-Induced Hypothermia (RIH), were used as the validate models of depression in rodents. The study was confirmed by brain monoamines estimation (i.e. Dopamine, Norepinephrine and 5-HT), MAO levels and invivo antioxidant studies (CAT and SOD). Results. FAEE treated animals showed a significant and dose dependent effect on a decrease in immobility time in FST, TST, and decrease in catalepsy time in HIC. FAEE and imipramine (15mg/kg) showed a significant increase in body temperature in RIH, and also showed a potent lethality in PNEIT. FAEE treated animals showed a significant increase in the levels of brain monoamines, in vivo antioxidants, and a significant decrease in MAO levels. Conclusion. Results of present study indicate that FAEE has potent antidepressant-like activity, and this effect may be due to the anti-oxidant property of Ferulic acid and umbelliferone, or may be due to neuroprotective activity of other major phytoconstituents, e.g. flavonoids, phenolic acids and polysulfide compounds. To identify the particular compound responsible for the antidepressant-like activity required further molecular level studies.
    Źródło:
    Journal of Pre-Clinical and Clinical Research; 2017, 11, 1; 50-60
    1898-2395
    Pojawia się w:
    Journal of Pre-Clinical and Clinical Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of the solvent on the extraction of polyphenols from distillery stillage and on their antioxidant activity
    Autorzy:
    Mikucka, Wioleta
    Zielińska, Magdalena
    Powiązania:
    https://bibliotekanauki.pl/articles/1830630.pdf
    Data publikacji:
    2021-09-29
    Wydawca:
    Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
    Tematy:
    DPPH assay
    Folin-Ciocalteu
    phenolic content
    methanolic extract
    ethanolic extract
    Opis:
    The increase in the costs of storage and disposal of post-production residues has resulted in the search for new directions for their recycling, which is closely related to the necessity of protecting the natural environment and promoting a circular economy. Moreover, the apparent interest shown by the food market in raw materials with high antioxidant activity implies an increasing use of by-products. The objective of the study was to determine the effect of the type and concentration of the solvent on the efficiency of extracting polyphenols from distillery stillage as well as their antioxidant activity by using several solvents: methanol:water (70:30 v/v), methanol:water (100:0 v/v), ethanol:water (70:30 v/v) or ethanol:water (100:0 v/v). The DPPH radical method was used to determine the antioxidant activity of the obtained extracts. The normalised variable (NV) and statistical measure (MS) were determined, based on which the effectiveness of the solvents was evaluated. The highest polyphenolic content and the antioxidant activity were obtained by using ethanol:water (70:30 v/v) as a solvent in the extraction of polyphenolic compounds from distillery stillage.
    Źródło:
    Acta Universitatis Lodziensis. Folia Biologica et Oecologica; 2021, 17; 54-62
    1730-2366
    2083-8484
    Pojawia się w:
    Acta Universitatis Lodziensis. Folia Biologica et Oecologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Characterization of Catechins from Smilax domingensis Willd. in Cuba
    Autorzy:
    Soledispa, Pilar A.
    González, José
    Cuéllar, Armando
    Pérez, Julio
    Monan, Max
    Powiązania:
    https://bibliotekanauki.pl/articles/1077467.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    GC/MS
    Smilax domingensis
    catechins
    ethanolic extract
    flavanols
    Opis:
    Gas Chromatography coupled with mass spectrometry was applied to study the fragmentation of selected flavonoids from the ethanolic extract of Smilax domingensis Willd., Smilacaceae, known as zarzaparrilla, after Soxhlet extraction during 20 hours. Compounds belonging to one of the major subgroups found in common plants, i.e. flavanols were studied. Following solvent extraction and derivatization using BSTFA, possibly two different metabolites from the same chemical group were characterized in one analytical run: (+)-catechin and (-)-epicatechin. For the very first time, qualitative data on these analytes in the drug were determined after detailed validation of a sensitive, cheap and reliable GC-MS method.
    Źródło:
    World News of Natural Sciences; 2019, 23; 297-305
    2543-5426
    Pojawia się w:
    World News of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Phytochemical composition and antibacterial activity of ethanolic extract from trunk of Rothmannia wittii (Craib) Bremek. (Rubiaceae) newly found in Vietnam
    Autorzy:
    Van, H.T.
    Nguyen, T.T.
    Ton, H.T.T.
    Dinh, K.T.T.
    Le, V.S.
    Pham, T.V.
    Tran, G.B.
    Powiązania:
    https://bibliotekanauki.pl/articles/2096309.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Rothmannia wittii
    extract
    phytochemical composition
    antibacterial activity
    LC-MS
    Opis:
    Rothmannia wittii, which is found in Binh Chau-Phuoc Buu Nature Reserve, Bung Rieng ward, Xuyen Moc District, Ba Ria-Vung Tau Province, Vietnam, is a rare species of Rubiaceae family. The present study aimed to determine the phytochemical composition and antimicrobial activity of the ethanolic extract of the R. wittii trunk. A total of 10 compounds were identified by liquid chromatography-mass spectrophotometry (LC-MS), including 1) benzene, 1-(1,5-dimethyl-4- hexenyl)-4-methyl, 2) diphenylsulfone, 3) 6β-hydroxy-10-O-acetylgenipin, 4) cinnamyl-cinnamate, 5) genipin, 6) megastigmatrienone, 7) ethyl p-methoxy-trans-cinnamate, 8) rothalazepane, 9) 1,3,6-trimethylpyrano[2,3-d ]imidazole-2,5(1H,3H)-dione, and 10) shanzhiol. The extract also exhibited an antibacterial activity against six bacterial strains: Bacillus cereus, Pseudomonas aeruginosa, Escherichia coli, Staphylococcus aureus, Salmonella typhimurium and Salmonella enteritidis, as determined via disk diffusion agar method.
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2020, 101, 4; 301-307
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Immunomodulatory activity of ethanolic leaf extract of Terminalia chebula
    Autorzy:
    Vadlamani, S.
    Bala Durga, D.K.A.
    Kumar, B.V.
    Powiązania:
    https://bibliotekanauki.pl/articles/11323.pdf
    Data publikacji:
    2015
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Opis:
    Terminalia chebula, a plant rich with phytochemicals, was selected in the present investigation for evaluating its immunomodulatory activities. Extract of the leaves were prepared in various solvents. Ethanolic extract was found to contain significant amount of phytochemicals. Hence, it was selected to study immunomodualtory activity. Silica gel column chromatography of ethanolic extract was performed. The fractions were further subjected to TLC and most active fractions were administrated to balb/C mice for evaluating immunomodulatory studies. Out of the five fraction (S1 – S5), S3 was found to possess immunostimulant activity. Provision of Ethanol Extracts of Terminalia chebula on balb/C mice can increase the antibody titers IgM and IgG.
    Źródło:
    International Letters of Natural Sciences; 2015, 47
    2300-9675
    Pojawia się w:
    International Letters of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Antidermatophytic activity of ethanolic leaves extract of Limonia acidissima Groff.
    Autorzy:
    Shivakumar Singh, P.
    Vidyasagar, G.M.
    Powiązania:
    https://bibliotekanauki.pl/articles/11036.pdf
    Data publikacji:
    2015
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Opis:
    In the present study Limonia acidissima Groff. ethanolic leaves extract was used for the detection of its antidermatophytic assay. It results broad spectrum of antifungals and antibacterial. Where the antimycotic activity against Trichophyton rubrum, Trichophyton tonsurans, Trichophyton mentagrophytes, Microsporium gypseum, Candida albicans and four Bacillus subtilis, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa were more pronounced. The effective antidermatophytic activity observed against M. gypseum, T. tonsurans, E. coli and B. subtilis. Minimum Inhibitory Concentration of all the test microbes was determined using broth dilution technique. MFC, MBC also standardized. Preliminary Phytochemical tests were carried for the revealing basics antimicrobial responsible molecules of secondary metabolites.
    Źródło:
    International Letters of Natural Sciences; 2015, 39
    2300-9675
    Pojawia się w:
    International Letters of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ameliorative Effect of Ethanolic Extract of Laportea aestuans (L.) Chew on Gastric Oxidative Damage in Aspirin - Induced Gastric Ulcer in Male Rats
    Autorzy:
    Onadeko, Akinwande
    Akinola, Olusegun
    Powiązania:
    https://bibliotekanauki.pl/articles/1839808.pdf
    Data publikacji:
    2021
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Gastric Ulcer
    Oxidative Stress
    Cimetedine
    Phytochemicals
    Aspirin
    Laportea aestuans
    Opis:
    Non-steroidal anti-inflammatory drugs (NSAIDs) are connected with the generation of free radicals and one of its adverse effects is gastric ulceration. Ulceration was induced orally using aspirin. Twenty-four male Wistar rats were used for this study (120-150g). Rats were divided into 6 groups with each group containing 4 rats. Rats were pre-treated orally with cimetidine, a reference drug. Group 1 rats orally received 1% gum acacia solution as the control group, Group 2 rats orally administered 25 mg/kg aspirin and served as the ulcerated, untreated group, rats in groups 3 and 4 were pre-treated orally with 200 mg/kg and 400 mg/kg respectively for 3 days while rats in groups 5 and 6 were pre-treated orally with 50 mg/kg cimetidine and 50 mg/kg catechin respectively for 3 days. The result of this study shows that the ulcerated, untreated rats showed increased concentrations of gastric volume with a concomitant decrease in protein concentration compared to the control group, cimetidine and catechin reversed these observations. Activities of glutathione, catalase were decreased in the ulcerated, untreated group but pre-treatment with different doses, cimetidine and catechin reversed these observations. In conclusion, the ethanoic extract of L. aestuans can be said to be used as an anti-ulcerogenic agent against aspirin-induced gastric ulcer which is due to the presence of phytochemicals in the plant.
    Źródło:
    World News of Natural Sciences; 2021, 39; 86-94
    2543-5426
    Pojawia się w:
    World News of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of anti-fibrotic activity of ethanolic extract of Nelumbo nucifera gaertn. Seed against doxorubicin and unilateral ureter obstruction-induced renal fibrosis
    Autorzy:
    Rushendran, R.
    Jayasankar Reddy, V.
    Bharath Kumar, T.
    Mamatha, T.
    Roja, J.
    Roopavani, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/972628.pdf
    Data publikacji:
    2017
    Wydawca:
    Instytut Medycyny Wsi
    Tematy:
    renal fibrosis
    anti-fibrosis
    nelumbo nucifera
    pirfenidone
    kidney
    Opis:
    Objective. The study were undertaken to evaluate anti-fibrotic activity of ethanolic extract of Nelumbo nucifera seed (NNSEE) against doxorubicin and Unilateral Ureter Obstruction-induced renal fibrosis. Materials and method. Animals were divided into five groups with six animals in each group, i.e. Normal, Positive control, Standard (Pirfenidone 200mg/kg), Test-I (NNSEE 200mg/kg), and Test-II (NNSEE 400mg/kg). Renal fibrosis was developed by doxorubicin and UUO-induced methods. After induction of renal fibrosis, profibrotic responses in biochemical parameters were observed, e.g. BUN, serum creatinine levels were elevated, while total protein and GFR levels decreased. Antioxidant (SOD and CAT) levels are also attenuates and hyalinized glomeruli cells, damage to tubular cells were noted in histopathology, which are all responsible for the development of renal fibrosis. Results. The result showed that the anti-fibrotic activity of NNSEE at a dose of 200 and 400mg/kg b.wt was comparable with the standard treatment 200mg/kg b.wt of pirfenidone (anti-fibrotic drug). These data supplemented with histopathological studies of rat kidney sections. NNSEE had reversed all the manifestation of renal fibrosis. Conclusion. Results of the study indicate that the NNSEE has potent anti-fibrotic activity, as well as antioxidant property, in dose dependent manner that may be due to the presence of major phytochemical constituents such as alkaloids, polyphenols.
    Źródło:
    Journal of Pre-Clinical and Clinical Research; 2017, 11, 1; 66-75
    1898-2395
    Pojawia się w:
    Journal of Pre-Clinical and Clinical Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of the corrosion inhibition effect of Ipomoea batatas leaves extract on mild steel in sulphuric acid
    Autorzy:
    Udowo, V. M.
    Uwah, I. E.
    Magu, T. O.
    Thomas, U. E.
    Powiązania:
    https://bibliotekanauki.pl/articles/1178378.pdf
    Data publikacji:
    2017
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Ethanolic extract of Ipomoea batatas leaves (EEIBL)
    Gasometry
    Gravimetry
    Ipomoea batatas
    Langmuir Isotherm
    Opis:
    The inhibition of mild steel corrosion in 1 M sulphuric acid media by ethanolic extracts of Ipomoea batatas was investigated using the gravimetric and gasometric methods. The extracts recorded an inhibition efficiency of 61.1 % and 52.6 % at room temperature for the gravimetry and the gasometry respectively. The inhibition process was initiated by the physical adsorption of the inhibitor extracts to the metal surface and the data obtained fitted very well into the Langmuir adsorption isotherm.
    Źródło:
    World Scientific News; 2017, 77, 2; 354-361
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Aktywność przeciwdrobnoustrojowa etanolowego ekstraktu propolisu
    Antibacterial activity of ethanol extract of propolis
    Autorzy:
    Wojtyczka, Robert Dariusz
    Kubina, Robert
    Kabała-Dzik, Agata
    Bułdak, Rafał Jakub
    Powiązania:
    https://bibliotekanauki.pl/articles/1038639.pdf
    Data publikacji:
    2012
    Wydawca:
    Śląski Uniwersytet Medyczny w Katowicach
    Tematy:
    etanolowy ekstrakt propolisu
    właściwości przeciwdrobnoustrojowe
    metoda seryjnych rozcieńczeń
    ethanolic extract of propolis
    antimicrobial activity
    serial dilution method
    Opis:
    INTRODUCTION Propolis (bee glue) is a resinous hive product collected by honeybees (Apis mellifera carnica) from various plant sources and is used to seal holes in their honeycombs, smooth out the internal walls and protect the entrance against intruders. Many pharmaceutical properties including antibacterial, antifungal, antiviral, antiprotozoan, anti-infl ammatory, antioxidant, hepatoprotective, immunostimulating, antitumor, and cytostatic activities have been reported for propolis. MATERIAL AND METHODS The following microorganisms were used in this study to test antimicrobial activity of propolis. Six bacteria strains obtained from ATCC Staphylococcus aureus ATCC 25923; Staphylococcus aureus ATCC 29123; Enterococcus faecalis ATCC 29212; Escherichia coli ATCC 11775; Pseudomonas aeruginosa ATCC 27853; Candida albicans ATCC 60193 strains were used. Antimicrobial activity of propolis ethanol extract was investigated by the Serial Dilution Method. RESULTS The present results allow the conclusion that Gram-positive bacteria (Staphylococcus aureus) are more susceptible than Gram-negative bacteria (Escherichia coli and Pseudomonas aeruginosa) to ethanolic extract of propolis. CONCLUSIONS 1. Ethanol extract of propolis demonstrates diverse antimicrobial properties depending on species of the examined strain and activity time. 2. Ethanol extract of propolis demonstrates strong antimicrobial activities regarding Gram-positive cocci strains belonging to Staphylococcus aureus species.
    WSTĘP Propolis (kit pszczeli) jest żywicznym produktem zbieranym przez pszczoły (Apis mellifera carnica) z rozmaitych roślin i jest używany do zamykania otworów w plastrach, pokrywania wewnętrznych ścian i ochrony wejścia przed intruzami. Propolis wykazuje wiele cech farmaceutycznych, takich jak właściwości przeciwbakteryjne, przeciwgrzybicze, przeciwwirusowe, przeciwzapalne, antyutleniające, hepatoprotekcyjne, immunostymulujące, przeciwnowotworowe oraz cytostatyczne. MATERIAŁ I METODY W celu określenia działania przeciwbakteryjnego do badań użyto następujących szczepów: Staphylococcus aureus ATCC 25923; Staphylococcus aureus ATCC 29123; Enterococcus faecalis ATCC 29212; Escherichia coli ATCC 11775; Pseudomonas aeruginosa ATCC 27853; Candida albicans ATCC 60193. Antybakteryjne działanie etanolowego ekstraktu propolisu oceniono metodą seryjnych rozcieńczeń. WYNIKI Uzyskane wyniki antybakteryjnego działania sześciu referencyjnych szczepów pokazują większą wrażliwość bakterii Gram-dodatnich (Staphylococcus aureus) na działanie EEP niż bakterie Gram-ujemne (Escherichia coli i Pseudomonas aeruginosa). WNIOSKI 1. Etanolowy ekstrakt propolisu wykazuje zróżnicowane właściwości przeciwdrobnoustrojowe w zależności od gatunku badanego szczepu i czasu działania. 2. Etanolowy ekstrakt propolisu wykazuje silne działanie przeciwbakteryjne w stosunku do szczepów ziarniaków Gram-dodatnich z gatunku Staphylococcus aureus.
    Źródło:
    Annales Academiae Medicae Silesiensis; 2012, 66, 2; 39-48
    1734-025X
    Pojawia się w:
    Annales Academiae Medicae Silesiensis
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Phytochemical evaluation and comparative antibiocide efficacy of Aqueous, Ethanolic and equal mixture of aqueous and ethanolic (1:1) bark extract of Lannea coromandelica L. procured from Eastern region of India
    Autorzy:
    Das, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/10777.pdf
    Data publikacji:
    2014
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Opis:
    The present investigation was evaluating the potential antibacterial activity of three different extracts of the bark of Lannea coromandelica Linn. (LC) tree procured from Eastern India. Extraction of bark separation was carried out using aqueous, ethanol and a mixture of aqueous and ethanol. Microbiocides of all the extracts were separately evaluated against several microorganisms viz. Bacillus substilis, Staphylococcus aureus, Streptococcus pyogenes, Pseudomonus aeruginosa, Escherichia coli and Serratia marcescens by agar diffusion technique. The Minimum Inhibition Concentration (MIC) of all the extracts was carried out by the serial dilution method. The results of MIC ranged from 12.5 to 150 mg/ml (all the three extracts). The concentration dependent (**P < 0.01) potential antimicrobial activity was resulted and at the dose of 200 mg/ml, combined aqueous and ethanol extract of LC (LCAE + LCEE) gave significant results against gram positive bacteria where the maximum zone of inhibition was recorded against Streptococcus pyogenes (17.0± 0.05**) followed by Straphyloccus aureus (13.6 ±0.05**). Further, the same extract showed the maximum relative percentage inhibition against Straphyloccus aureus (178.64%) followed by Streptococcus pyogenes (143.42%). Such variation may be due to the effects of choice of solvent and the quantity of the extracted amount and also the geographical source of the plant part. These results represent scientific evidence to support the traditional medicinal uses of LC bark extracts and indicate a promising potential used against the treatment of infectious diseases caused by pathogenic bacteria and also provide scientific evidence for their efficacy to prepare the alternate newer medicine for antibiotics.
    Źródło:
    International Letters of Natural Sciences; 2014, 21
    2300-9675
    Pojawia się w:
    International Letters of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Compatibility assessment between four ethanolic plant extracts with a bug predator Orius horvathi (Reuter) (Heteroptera: Anthocoridae) used for controlling the western flower thrips Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae)
    Autorzy:
    Razavi, N.
    Ahmadi, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/66363.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    ethanol extract
    plant extract
    Orius horvathi
    Heteroptera
    Anthocoridae
    pest control
    flower thrip
    thrip
    Frankliniella occidentalis
    Thysanoptera
    Thripidae
    integrated pest management
    natural enemy
    Opis:
    The western flower thrips, Frankliniella occidentalis (Pergande) attacks a large number of crop plants. The current insecticides have caused resistance in insects and have caused outbreaks of thrips. In many instances, alternative methods of insect management and natural products, offer adequate pest control and pose fewer hazards. Several species of minute pirate bugs of the genus Orius play a significant role in the biological control of a large number of thrips species, such as F. occidentalis. In this study, the insecticidal activity of four ethanolic plant extracts (Cercis siliquastrum L., Calendula officinalis L., Peganum harmala L., Melia azedarach L.) in integration with Orius horvathi (Reuter) were evaluated for controlling F. occidentalis. The present research aimed to find plant extracts with a good impact on F. occidentalis but which have fewer side effects on O. horvathi. The results showed that P. harmala extract can be considered compatible with the natural enemy for controlling thrips. When the predatory bugs O. horvathi, were released three days after P. harmala extract spraying, the integration was more effective. While the P. harmala plant extract plays an important role in thrips control, it is necessary to consider the specified time interval between the application of the P. harmala plant extract and the release of the O. horvathi predatory bugs. The ethanolic extract of M. azedarach caused a balance between the pest population and the natural enemy. This result is very important in an Integrated Pest Management (IPM) program because this ethanolic extract of M. azedarach had lower side effects on the natural enemy. This means that an integration of plant derived chemicals and the natural enemy, O. horvathi, can effectively control thrips.
    Źródło:
    Journal of Plant Protection Research; 2016, 56, 1
    1427-4345
    Pojawia się w:
    Journal of Plant Protection Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Antibacterial activity of ethanolic extracts of some moss species
    Aktywność przeciwbakteryjna wyciągów etanolowych wybranych gatunków mchów
    Autorzy:
    Karpinski, T.M.
    Adamczak, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/71461.pdf
    Data publikacji:
    2017
    Wydawca:
    Instytut Włókien Naturalnych i Roślin Zielarskich
    Tematy:
    antibacterial activity
    antiviral activity
    ethanol extract
    moss species
    Dryptodon pulvinatus
    Schistidium crassipilum
    Orthotrichum anomalum
    Opis:
    Introduction: For centuries, mosses have been used in traditional medicine due to their antibacterial, antifungal, and antiviral activities. Objective: The present study was designed to evaluate the antibacterial activity of ethanolic extracts obtained from 12 moss species: Brachythecium albicans, Bryum argenteum, Ceratodon purpureus, Dicranum scoparium, Dryptodon pulvinatus, Orthotrichum anomalum, Oxyrrhynchium hians, Plagiomnium undulatum, Polytrichum juniperinum, P. piliferum, Schistidium crassipilum, and Syntrichia ruralis. Methods: The antimicrobial activity of extracts was investigated against three Gram(+) bacteria (Enterococcus faecalis, Staphylococcus aureus, and Streptococcus pyogenes) and two Gram(-) bacteria (Escherichia coli and Klebsiella pneumoniae), using the agar disc-diffusion method. Results: The high activity against all investigated bacteria was determined for extracts of D. pulvinatus, P. undulatum, B. argenteum, S. crassipilum, O. anomalum (mean inhibition zone: 11.3–13.1 mm) and to a lesser extent in the case of D. scoparium (8.3 mm). Extracts from P. juniperinum and P. piliferum showed activity only against Gram-positive bacteria, with an inhibition zone from 7.3 to 9.7 mm. Four species: B. albicans, C. purpureus, O. hians, and S. ruralis had not antibacterial properties. Conclusions: The obtained results indicate that mosses could be a significant source of antibacterial agents. For the first time, we presented antibacterial activity of ethanolic extracts from S. crassipilum and O. anomalum.
    Wstęp: Od wieków mchy były stosowane w tradycyjnej medycynie, ze względu na ich działanie przeciwbakteryjne, przeciwgrzybicze i przeciwwirusowe. Cel: Celem niniejszej pracy było określenie aktywności przeciwbakteryjnej wyciągów etanolowych otrzymanych z 12 gatunków mchów: Brachythecium albicans, Bryum argenteum, Ceratodon purpureus, Dicranum scoparium, Dryptodon pulvinatus, Orthotrichum anomalum, Oxyrrhynchium hians, Plagiomnium undulatum, Polytrichum juniperinum, P. piliferum, Schistidium crassipilum i Syntrichia ruralis. Metody: Działanie przeciwbakteryjne wyciągów badano wobec trzech bakterii Gram-dodatnich (Enterococcus faecalis, Staphylococcus aureus i Streptococcus pyogenes) oraz dwóch bakterii Gram-ujemnych (Escherichia coli i Klebsiella pneumoniae), stosując metodę dyfuzyjno-krążkową. Wyniki: Wysoką aktywność przeciwko wszystkim badanym bakteriom stwierdzono w przypadku wyciągów uzyskanych z D. pulvinatus, P. undulatum, B. argenteum, S. crassipilum i O. anomalum (średnia strefa zahamowania wzrostu: 11.3–13.1 mm), a niższą dla D. scoparium (8.3 mm). Wyciągi z P. juniperinum i P. piliferum wykazały aktywność jedynie wobec bakterii Gram-dodatnich. Ekstrakty z B. albicans, C. purpureus, O. hians i S. ruralis nie posiadały właściwości przeciwbakteryjnych. Wnioski: Uzyskane wyniki wskazują, że mchy mogą mieć znaczenie jako źródło związków działających przeciwbakteryjnie. Były to pierwsze badania wykazujące przeciwbakteryjną aktywność wyciągów etanolowych uzyskanych z S. crassipilum i O. anomalum.
    Źródło:
    Herba Polonica; 2017, 63, 3
    0018-0599
    Pojawia się w:
    Herba Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Antibacterial activity of ethanolic leaf extracts obtained from various ficus species (Moraceae) against the fish pathogen, Citrobacter freundii
    Aktywność antybakteryjna etanolowych ekstraktów uzyskanych z liści różnych gatunków fikusów w stosunku do patogenu ryb, Citrobacter freundii
    Autorzy:
    Tkachenko, H.
    Buyun, L.
    Terech-Majewska, E.
    Osadowski, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/84875.pdf
    Data publikacji:
    2016
    Wydawca:
    Akademia Pomorska w Słupsku
    Tematy:
    antibacterial activity
    ethanol extract
    leaf extract
    ficus
    eel
    Anguilla anguilla
    Ficus
    growth inhibition
    Moraceae
    fish pathogen
    Citrobacter freundii
    Opis:
    The diversity of culturable bacteria inhabiting the Baltic sea surface waters was more divergent at a polluted location than at clean areas. The most important members of the family Enterobacteriaceae that are pathogenic to fish are the enteric redmouth disease agent, Yersinia ruckeri and two species of Edwardsiella, E. tarda and E. ictaluri, Serratia, Proteus and Citrobacter have all been implicated as potential fish pathogens. The use of pharmaceutical substances is rather limited in fish compared to mammalian therapeutics. Medicinal herbs play an alternative role to antibiotic therapy in aquaculture. Ficus species (Moraceae) leaves possess great medicinal potential for the therapy of bacterial and fungal infections and may be used as a natural antiseptic and antimicrobial agent in veterinary. Accordingly, these products can be used in aquaculture as therapeutic and prophylactic agents against fish pathogens, with antimicrobial properties. Present study aimed to investigate the in vitro antimicrobial activity of the ethanolic leaf extracts of various Ficus species against fish pathogen, Citrobacter freundii. The antimicrobial susceptibility testing was done on Muller-Hinton agar by disc diffusion method (Kirby-Bauer disk diffusion susceptibility test protocol). Our results demonstrate that various species of Ficus had mild antibacterial in vitro activity against C. freundii isolated locally from infected eel (Anguilla anguilla L.). The results proved that the extracts from F. drupacea, F. septica, F. deltoidea as well as F. hispida, F. mucuso, F. pumila, F. craterostoma exhibit a favorable antibacterial activity against C. freundii. These validate scientifically their inhibitory capacity attributed by their common use in folk medicine and contribute towards the development of new treatment options in aquaculture based on natural products. The chemical analysis of the aforementioned plant extracts should be performed to determinate their chemical composition and identify the exact phytocompounds responsible for antimicrobial activity against C. freundii. In addition, they should be subjected to pharmacological evaluations with the aim of assessing their in vivo efficacy, toxicity, potential adverse effects, interactions and contraindications. Given the increasing rate of resistance development in bacterial pathogens in aquaculture environments, medicinal plants with antibacterial properties are very important as natural resources for new active compounds.
    Zioła lecznicze odgrywają rolę alternatywnej terapii antybiotykowej w akwakulturze. Substancje biologicznie aktywne pozyskiwane z roślin mają równie dobre, a nawet bardziej skuteczne działanie w porównaniu z tradycyjnymi lekami syntetycznymi, w dodatku nie wywołują oporności drobnoustrojów, która często pojawia się podczas antybiotykoterapii. W różnych regionach świata tradycyjnie w celach medycznych stosowane są różne gatunki roślin tropikalnych, m.in. fikusy (Moraceae). Głównym celem badań była ocena wrażliwości patogenu ryb Citrobacter freundii na etanolowe ekstrakty z liści wybranych gatunków fikusów. Przeciwbakteryjne działanie ekstraktów oceniano in vitro, stosując metodę dyfuzyjnokrążkową. Nasze wyniki wskazują, że różne gatunki Ficus wykazują in vitro łagodne działanie przeciwbakteryjne przeciwko C. freundii izolowanego lokalnie z zainfekowanego węgorza (Anguilla anguilla L.). Przeprowadzone badania wykazały, że największą aktywność przeciwbakteryjną wobec szczepu C. freundii wykazały etanolowe wyciągi uzyskane z liści gatunków fikusów: F. drupacea, F. septica, F. deltoidea, F. hispida, F. mucuso, F. pumila, F. craterostoma. Wstępne badania screeningowe wskazują zatem, że wyciągi z liści niektórych gatunków fikusów o właściwościach antybakteryjnych mogą stanowić alternatywne środki terapeutyczne przeciwko infekcjom bakteryjnym w akwakulturze. Produkty te mogą być stosowane jako środki terapeutyczne i profilaktyczne, niemniej jednak powinni jeszcze zostać przeprowadzone bardzo intensywne badania dotyczące ich właściwości przeciwbakteryjnych.
    Źródło:
    Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 2016, 20
    1643-0115
    Pojawia się w:
    Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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