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Wyszukujesz frazę "plant extracts" wg kryterium: Temat


Tytuł:
Proangiogenic activity of plant extracts in accelerating wound healing - a new face of old phytomedicines
Autorzy:
Majewska, Iwona
Gendaszewska-Darmach, Edyta
Powiązania:
https://bibliotekanauki.pl/articles/1039823.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
phytomedicines
angiogenesis
wound healing
plant extracts
Opis:
Angiogenesis, the formation of new capillaries from pre-existing vascular network, plays an important role in physiological and pathological processes such as embryonic development, wound healing, and development of atherosclerosis. Extension of the circulatory network is also considered to be one the most important factors during cancerogenesis. Inhibition of angiogenesis may lead to inhibition of tumor growth whereas stimulation may improve wound healing. Research achievements suggest the use of plants and their extracts as potential therapeutic agents with pro- or antiangiogenic activity. Since the anticancer and antiangiogenic properties of many phytomedicines have been amply reviewed elsewhere this paper will focus on the treatment of vascular insufficiency in wound healing. Globally accepted herbal drugs are thought to be safe and effective, however, there is a need for more evidence-based confirmation in controlled and validated trials. Among the most frequently studied proangiogenic phytochemicals are ginsenosides from Panax ginseng, beta-sitosterol from Aloe vera, calycosin from Radix Astragali, and extracts from Hippophae rhamnoides L. and Angelica sinensis.
Źródło:
Acta Biochimica Polonica; 2011, 58, 4; 449-460
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Water Extract From Mint on Selected Crop Pests Feeding and Survival
Autorzy:
Biniaś, B.
Gospodarek, J.
Rusin, M.
Powiązania:
https://bibliotekanauki.pl/articles/124262.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
biological control
Mentha piperita L
plant extracts
Opis:
The aim of the study was to determine the effect of aqueous extracts of dried mint (Mentha piperita L.) in concentrations of 2%, 5% and 10%, and fresh parts of this plant, in concentrations of 10%, 20% and 30% on feeding of pea leaf weevil (Sitona lineatus L.) and survival of black bean aphid (Aphis fabae Scop.) on the leaves of broad bean (Vicia faba L.), variety “Bartek”. In the studies of the effects of aqueous extracts of mint on the dynamics of Sitona lineatus feeding on the beans leaves, 9 laboratory’s observations in 12-hour intervals was made. Leaves injuries on their edge surface caused by adult individuals were measured. Observations were carried out in 6 replicates divided into males and females. In these researches on impact of water extracts from mint on mortality of wingless females and larvae of black bean aphids, 14 laboratory’s observations in the 8-hour intervals was made. Aqueous extracts of dry and fresh peppermint significantly limited the feeding of pea leaf weevil females, and the extracts from dried material were more effective. Extracts from peppermint caused mortality of black bean aphid larvae compared to wingless females to a greater extent, and the higher the concentration of the extract, the more beneficial effect was observed. An extract from dried material at a concentration of 2% was too weak to effectively combat the larvae of A. fabae, while in the case of aphid females, an effectiveness was only demonstrated for the extracts at the highest concentrations, i.e., 10% of dried and 30% of fresh peppermint.
Źródło:
Journal of Ecological Engineering; 2017, 18, 2; 119-128
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An in vitro assessment of antiviral activity for ethanol extract of Desmodium canadense against bovine herpesvirus type 1
Autorzy:
Lelešius, R.
Girdauskaitė, P.
Karpovaitė, A.
Mickienė, R.
Drevinskas, T.
Tiso, N.
Ragažinskienė, O.
Kubilienė, L.
Maruška, A.
Šalomskas, A.
Powiązania:
https://bibliotekanauki.pl/articles/2087312.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
bovine herpesvirus 1
plant extracts
Desmodium canadense
Źródło:
Polish Journal of Veterinary Sciences; 2020, 23, 2; 177-184
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
In vitro antioxidant and antibabesial activities of the extracts of Achillea millefolium
Autorzy:
Guz, L.
Adaszek, Ł.
Wawrzykowski, J.
Ziętek, J.
Winiarczyk, S.
Powiązania:
https://bibliotekanauki.pl/articles/2087537.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
yarrow
plant extracts
babesiosis
tick borne diseases
Źródło:
Polish Journal of Veterinary Sciences; 2019, 2; 360-376
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Green synthesis of zinc oxide nanoparticles from aqueous extracts of Sesamum indicum L. and their characterization
Autorzy:
Manokari, M.
Latha, R.
Priyadharshini, S.
Cokul, Raj M.
Beniwal, Puneet
Shekhawat, M. S.
Powiązania:
https://bibliotekanauki.pl/articles/1077277.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Biosynthesis
Characterization
Plant Extracts
Sesamum indicum
Zinc Oxide Nanoparticles
Opis:
Green synthesis of Zinc oxide nanoparticles (ZnO-NPs) is a novel and non-toxic method as compared to the hazardous conventional physical and chemical methods. Herein, we report production of ZnO-NPs for the first time using whole vegetative parts of Sesamum indicum L. The aqueous extracts of various parts of S. indicum were used to synthesize nanoparticles in this study. The synthesized nanoparticles were evaluated using UV-visible spectroscopy for confirmation and characterization. The maximum UV-visible spectral absorption peaks were observed from 293 to 296 nm wavelengths. Leaf and stem reaction mixtures exhibited the sharpest absorption peaks of all the variations at 293 nm and root at 296 nm. This study leads to the development of cost-effective ZnO-NPs synthesis with possible further exploration to serve mankind.
Źródło:
World News of Natural Sciences; 2019, 23; 200-210
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of the effect of the Zielony Busz fertilizer on selected phytopathogenic fungi growth in vitro
Autorzy:
Jamiołkowska, Agnieszka
Skwaryło-Bednarz, Barbara
Kursa, Weronika
Powiązania:
https://bibliotekanauki.pl/articles/2143636.pdf
Data publikacji:
2022-09
Wydawca:
Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy
Tematy:
plant extracts
Alternaria alternata
Fusarium spp.
azoxystrobin
Colletotrichum coccodes
Opis:
The aim of the research was the laboratory evaluation of the fungistatic effect of the Zielony Busz (ZB) organic-mineral fertiliser on the linear growth of polyphagic phytopathogenic fungi Alternaria alternata, Colletotrichum coccodes, Fusarium avenaceum, Fusarium equiseti and Fusarium oxysporum. The preparation was applied to the medium (PDA potato-glucose agar) in concentrations of 2% and 5%, compared to 0.05% azox- ystrobin (relative control) and pure PDA medium (absolute con- trol). The strongest antifungal effect of the Zielony Busz fertilizer was found at the 5% concentration in reference to A. alternata (inhibition of colony growth at the level of 50–52% compared to the absolute control; 20–41.7% compared to azoxystrobin) and C. coccodes (18.2–53.3% growth inhibition compared to abso- lute control). Weaker inhibitory effect of 5% concentration of the fertilizer was noted against F. avenaceum (10.5% inhibition of colony growth compared to absolute control) and F. oxysporum (20% inhibition compared to absolute control), but only at the beginning of the experiment. The Zielony Busz fertilizer at a con- centration of 2% caused the surface growth of all tested fungi, especially F. equiseti. The best effects of the fungistatic effect of the fertilizer were obtained in the first days of the experiment (4th day) with a 5% concentration of the product in the substrate. With time, the antifungal activity of fertilizer decreased significantly
Źródło:
Polish Journal of Agronomy; 2022, 50; 19-24
2081-2787
Pojawia się w:
Polish Journal of Agronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Sage Water Extracts on Reduction of Feeding of Pea Leaf Weevil
Autorzy:
Biniaś, B.
Gospodarek, J.
Rusin, M.
Powiązania:
https://bibliotekanauki.pl/articles/123412.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
Sitona lineatus L
plant extracts
olfactometer
Salvia officinalis L
Opis:
The aim of the experiment was to determine the effect of aqueous extracts of dried sage (Salvia officinalis L.) in concentrations of 2%, 5% and 10%, and the fresh parts of the plant in concentrations of 10%, 20% and 30% on the feeding of Sitona lineatus L. on the broad bean (Vicia faba L.) leaves. The olfactometry response of the pest (response to olfactory stimuli) was also determined in relation to the sage. Extracts of dry and fresh parts of sage reveal the inhibitory effect on feeding of both males and females of pea leaf weevil, the stronger, the higher their concentrations, however, no apparent differences were registered between the analysed sexes. Dry plant extracts in 10% concentrations and 30% extracts of fresh sage parts caused 2–3 time reduction of Sitona lineatus feeding after 4 days of the experiment. An apparent repellent response of aroma substances originating from sage towards weevil beetles (both males and females) was registered, which suggests potential applications of this plant as a neighbouring plant in mixed stands or, e.g., as a component of border belts.
Źródło:
Journal of Ecological Engineering; 2016, 17, 2; 157-162
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Możliwości zastosowania ekstraktów roślinnych w procesie otrzymywania srebra nanocząsteczkowego
Plant extracts application in the process of nanosized silver preparation
Autorzy:
Pulit, J.
Banach, M.
Powiązania:
https://bibliotekanauki.pl/articles/142858.pdf
Data publikacji:
2014
Wydawca:
Stowarzyszenie Inżynierów i Techników Przemysłu Chemicznego. Zakład Wydawniczy CHEMPRESS-SITPChem
Tematy:
nanosrebro
zielona chemia
ekstrakty roślinne
nanosilver
green chemistry
plant extracts
Opis:
Cenne właściwości nanosrebra zadecydowały, iż jest ono jednym z najbardziej pożądanych nanomateiałów. Jego biobójcze właściwości sprawiają, że znalazło ono zastosowanie w wielu dziedzinach, m. in. w kosmetyce, medycynie, inżynierii medycznej, budownictwie, przemyśle rolnym. Z uwagi na fakt, iż otrzymywanie nanosrebra przynosi zyski, opracowano wiele sposobów jego pozyskiwania. Oprócz znanych metod fizycznych i chemicznych, coraz większą rolę w ostatnim czasie odgrywają metody przyjazne dla środowiska. W pracy dokonano przeglądu sposobów wytwarzania nanosrebra przy użyciu ekstraktów roślinnych.
Valuable properties of nanosilver caused that it is one of the most desirable nanomateials. Its biocidal properties make it is applied in many areas including cosmetics, medicine, medical engineering, construction, agriculture industry and others. Due to the fact that the preparation of nanosilver brings many benefits, many ways of its acquiring have been developed. In addition to the known physical and chemical methods, in recent times, environmentally friendly methods are increasingly important. A review of methods for the preparation of nanosilver using plant extracts has been described.
Źródło:
Chemik; 2014, 68, 1; 47-52
0009-2886
Pojawia się w:
Chemik
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biological Approach for the Synthesis and Characterization of Zinc Oxide Nanopaticles from Croton bonplandianum Baill. Extracts
Autorzy:
Manokari, M.
Shekhawat, Mahipal S.
Powiązania:
https://bibliotekanauki.pl/articles/1112329.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Croton bonplandianum
Plant extracts
UV-Visible spectrophotometry
Zinc oxide nanoparticles
Opis:
The biogenesis of nanoparticles recently gained more attention. Here, we report the biogenesis of zinc oxide (ZnO) nanoparticles using aqueous extracts of the leaves, stem, root, flowers and fruits of Croton bonplandianum Baill. at room temperature. Croton bonplandianum is an important medicinal plant used to cure many pathological conditions in the traditional systems of Indian medicines due to the presence of important and specific bioactive compounds in the plant parts of this plant. Aqueous solution of Zinc Nitrate hexahydrate [Zn(NO3)2·6H2O] was used as a precursor and the various plant extracts played as reducing agents. The formation of ZnO nanoparticles was monitored by UV-Visible spectrophotometric analysis. The leaf extract showed strong absorbance peak at 302 nm, stem and fruit at 293 nm, root at 290 nm and flowers at 305 nm.
Źródło:
World News of Natural Sciences; 2018, 19; 95-107
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of fennel water extracts on reduction of feeding of pea leaf weevil
Autorzy:
Biniaś, B.
Gospodarek, J.
Rusin, M.
Powiązania:
https://bibliotekanauki.pl/articles/124287.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
Sitona lineatus L
biological control
Foeniculum vulgare Mill
plant extracts
Opis:
The objective of the study was to examine the effect of aqueous extracts from fennel (Foeniculum vulgare Mill.) seeds at 2%, 5%, 10% and 20% concentrations on the feeding of peal leaf weevil (Sitona lineatus L.) on broad bean (Vicia faba L.). The experiment was conducted in the laboratory, in six replicates. Feeding intensity assessment was conducted by dipping leaves of broad bean in respective solutions of the extracts and determining the area of broad bean leaves, eaten by pea leaf weevil beetle in the 12 hour intervals. In addition, absolute deterrence index and palatability index were calculated. As a result of the observation no significant limiting effect of fennel seed aqueous extracts on the feeding of the pea leaf weevil females was shown. All of the used fennel extracts had inhibitory effect on the feeding of male S. linetaus and the strongest effect of extracts was observed in the first 36 hours of the experiment. The high values of the palatability index (particularly for the females) with relatively low absolute deterrence index, indicate limited possibilities of the use of aqueous extracts from fennel seeds for the protection against the feeding of the beetles from the genus Sitona.
Źródło:
Journal of Ecological Engineering; 2016, 17, 5; 192-197
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efficacy of plant leaf extracts against mustard aphid Lipaphis erysimi (Kalt.) under field condition
Autorzy:
Pal, Manish Kumar
Kafle, Kapil
Powiązania:
https://bibliotekanauki.pl/articles/1166855.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Cypermethrin
Efficacy
Lipaphis erysimi
Mustard aphid
Plant extracts and Rapeseed
Opis:
The bio-efficacy of five plant leaf extracts were tested in Morang-2 variety of Rapeseed against Mustard aphid (Lipaphis erysimi Kalt.) during November to March, 2016/17 at research field of Institute of Agriculture and Animal Science (IAAS), Lamjung Campus, Lamjung, Nepal. The plant leaf extracts were prepared by decomposing chopped leaves of Neem, Bakaino, Hattibar, Khirro, and Bojho in cow urine for one month period. Total five extracts were prepared, one by mixing all the leaf while remaining four extracts were prepared excluding one ingredient in each mixture but keeping Tobacco and Bojho in all five extracts. The experiment was laid out in Randomized Completely Block Design using five botanical extracts, chemical (Cypermethrin 10% EC) and control which were replicated thrice. The Rapeseed plant was sprayed with prepared extracts at 30 days after sowing (DAS), 45 DAS and 60 DAS and aphid number counted after 5, 10 and 15 days of each spray from 10 cm apical shoot. The greatest reduction of aphid population was found in chemical followed by complete mixture treated plots but their reduction was not statistically different. While control and plant extracts of without Neem treated plots had resulted less reduction in the number of aphid. Grain yield was also found highest (1436.75 kg/ha) in complete mixture treated plots indicating complete mixture of plant extracts might be the best alternative for aphid management in Rapeseed. It is concluded that all the plant extracts showed insecticidal properties against aphid in rapeseed crop and successfully be integrated, as a part of Integrated Pest Management.
Źródło:
World Scientific News; 2018, 105; 29-39
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A response of Rhizoctonia solani Kühn. to biotechnical preparations
Reakcja grzyba Rhizoctonia solani Kühn. na preparaty biotechniczne
Autorzy:
Dłużniewska, J.
Powiązania:
https://bibliotekanauki.pl/articles/335765.pdf
Data publikacji:
2018
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Maszyn Rolniczych
Tematy:
Rhizoctonia solani
plant extracts
natural substances
wyciąg roślinny
substancja naturalna
Opis:
The aim of the present study was to examine the effect of natural substances such as garlic extract, grapefruit extract, vermicompost extract, and chitosan on mycelial growth, sclerotia germination, and biological activity of Rhizoctonia. solani. It was found that the tested substances inhibited mycelial growth and sclerotia germination of R. solani. At the lowest experimental concentration, all biological substances, contrary to the fungicide, had a positive effect on the relationship between R. solani and Trichoderma viride.
Celem pracy było zbadanie oddziaływania substancji takich, jak: wyciąg z czosnku, wyciąg z grapefruita, wermikompost i chitozan na wzrost grzybni, kiełkowanie sklerocjów i aktywność biologiczną grzyba Rhizoctonia solani. Stwierdzono, że badane substancje hamowały wzrost grzybni i kiełkowanie sklerocjów R. solani. W najmniejszym badanym stężeniu wszystkie substancje biologiczne, w przeciwieństwie do fungicydu, działały korzystnie na relacje między R. solani i Trichoderma viride.
Źródło:
Journal of Research and Applications in Agricultural Engineering; 2018, 63, 2; 33-38
1642-686X
2719-423X
Pojawia się w:
Journal of Research and Applications in Agricultural Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Aktywność przeciwgrzybiczna wybranych ekstraktów roślinnych na szczepy Aspergillusa®
Influence of selected plant extracts against Aspergillus®
Autorzy:
Dec, D.
Joka, M.
Kowczyk-Sadowy, M.
Powiązania:
https://bibliotekanauki.pl/articles/229006.pdf
Data publikacji:
2017
Wydawca:
Wyższa Szkoła Menedżerska w Warszawie
Tematy:
ekstrakty roślinne
zioła
Aspergillus
działanie przeciwgrzybicze
plant extracts
herbs
anti-fungal
Opis:
Celem pracy zaprezentowanej w artykule było przeprowadzenie badań dotyczących oceny efektywności działania wybranych ekstraktów roślinnych na szczepy grzybów z rodzaju Aspergillus. W warunkach in vitro testowano aktywność metanolowych ekstraktów z różnych organów 10 gatunków roślin (Melissa officinalis L., Levisticum officinale L., Rosmarinus officinalis, Origanum majorana L., Artemisia dracunculus L., Salvia officinalis L., Zingiber officinale, Corylus avellana L., Piper nigrum, Capsicum) na siedem szczepów z rodzaju Aspergillus. Analiza uzyskanych wyników wykazała, że aktywność wyciągów zależała od zastosowanych stężeń i gatunku rośliny wybranych do badań.
The aim of the study was to present the results of studies assessing the effectiveness of selected plant extracts against strains of fungi of the genus Aspergillus. In vitro activity of methanol extracts were tested with the various bodies of 10 plant species (Melissa officinalis L., Levisticum officinale L., Rosmarinus officinalis, Origanum majorana L., Artemisia dracunculus L., Salvia officinalis L., Zingiber officinale, Corylus avellana L., Piper nigrum, Capsicum) for seven strains of the genus Aspergillus. Analysis of the results showed that the activity of extracts depend on the concentrations used, and the plant species selected for the study.
Źródło:
Postępy Techniki Przetwórstwa Spożywczego; 2017, 1; 15-17
0867-793X
2719-3691
Pojawia się w:
Postępy Techniki Przetwórstwa Spożywczego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biocontrol of Timber Decaying Fungi by Botanical Pesticides an Ecofreindly Technology
Autorzy:
Nagadesi, Praveen Kumar
Arya, Arun
Powiązania:
https://bibliotekanauki.pl/articles/1190214.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Timber decay
Biocontrol
Plant Extracts
Ecofriendly Technology
Lenzites rot
Ganoderma rot
Schizophyllum rot
Opis:
Timber is one of the longest-used building materials for various types of structures, and has been used in the construction of both historical and modern structures. Timer decay is caused by primarily enzymatic activities of microorganisms. The eco-friendly management of timber degrading fungi is tried by using plant extracts, oils and gels. In most of the fungi 25% methanolic extract was more effective than 5 and 10% concentrations. Lenzites sterioides was completely inhibited by 5% leaf extract of P. Juliflora and 10% leaf extracts of Prosopis, Cymbopogon and Datura at 25% concentration. Oils and gels of Cymbopogon citrates, Anacardium occidentale L., Gossypium barbadensis L., Linum usitatissimum L., Aloe vera L., and Aloe ferox Mill. were used to control the timber degrading fungi. Out of four oils cashew nut shell oil was most effective followed by cotton seed oil. Of the two Aloe gels tried the A. ferox gel showed better results than A. vera. For the first time the biocontrol of L. sterioides T. pini and S. commune, by botanical pesticides was reported. For the first time the biocontrol of L. sterioides T. pini S. commune, G. lucidum, and S. hirsutum by Oils and gels was reported.
Źródło:
World Scientific News; 2016, 44; 206-223
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of antiamoebic and antimicrobial activities in vitro of Chaenomeles japonica (Thunb.) Lindl. ex Spach extracts
Autorzy:
Klikowska, M.
Derda, M.
Thiem, B.
Wlodarczyk, A.
Dlugaszewska, J.
Stochmal, A.
Zuchowski, J.
Hadas, E.
Powiązania:
https://bibliotekanauki.pl/articles/2117842.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
Acanthamoeba spp.
chaenomeles japonica
pentacyclic terpenoids
plant extracts
plant
in vitro cultures
polyphenols
staphylococcus aureus
Opis:
The free-living Acanthamoeba sp. causes various diseases. Treatment of them is very difficult and not always effective because of encystation, making it highly resistant to antiamoebic drugs. Gram-positive bacteria staphylococcus aureus, Gram-negative bacteria Escherichia coli, and an yeast candida albicans also exhibit outstanding resistance to antimicrobial substances. The search for new natural amoebicidal and antimicrobial agents of plant origin is still of current interest. The aim of the study was to investigate the amoebicidal activity of the extracts obtained from tissue culture and a field-grown plant of chaenomeles japonica against pathogenic trophozoites of Acanthamoeba spp. and antimicrobial effect against s. aureus, E. coli, and c. albicans. The extracts of c. japonica had an inhibitory effect on the proliferation of Acanthamoeba trophozoites as compared to the non-treated control. among the crude extracts tested, the extract of leaves, from both shoot culture and the field-grown plant had remarkable amoebicidal action against the trophozoites but also antibacterial activity against Gram-positive bacteria staphylococcus aureus. The extract from leaves from shoot culture, already on the second and third days of treatment, showed an antiamoebicidal effect at a concentration of 1 mg ml-1 (inhibi- tion of trophozoites 87.5% and 91.8%, respectively). In addition to leaves from shoot culture (a conc. 5 mg ml-1, 2nd day inhibition of trophozoites 85.7% and 3rd day 97.2%), leaves from a field-grown plant (a conc. 5 mg ml-1, 2nd day 91.0% and 3rd day 94.4%) and callus (a conc. 5 mg ml-1, 2nd day 90.0% and 3rd day – 95.4%) also exhib- ited a good antiamoebicidal activity. Out of the four extracts, the extracts from leaves from both shoot culture and a field-grown plant were reported to be the most active against Gram-positive s. aureus, which was determined by the values of MIC = 5.0 mg ml-1 and MIC = 2.5 mg ml-1, respectively. The inhibitory potential depends on the yield and composition of mainly bioactive compounds: pentacyclic terpenoids (mainly betulinic, ursolic, and oleanolic acids) and polyphenols (mainly chlorogenic acid and its isomers, epicatechin, dimeric, and trimeric proanthocyanidins, quercetin and kaempferol derivatives).
Źródło:
Acta Biologica Cracoviensia. Series Botanica; 2019, 61, 2; 47-58
0001-5296
Pojawia się w:
Acta Biologica Cracoviensia. Series Botanica
Dostawca treści:
Biblioteka Nauki
Artykuł

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