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Wyszukujesz frazę "triterpenoid" wg kryterium: Wszystkie pola

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    Wyświetlanie 1-6 z 6
    Tytuł:
    Przeciwwirusowe działanie triterpenoidów roślinnych
    Antiviral activity of plant triterpenoid
    Autorzy:
    Plakwicz, Michał
    Janiszowska, Wirginia
    Powiązania:
    https://bibliotekanauki.pl/articles/1197457.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Towarzystwo Przyrodników im. Kopernika
    Opis:
    One of the most interesting groups of secondary plant compounds are penta- and tetracyclic triterpenoids and their glycosides and glycosidoesters. They have a wide spectrum of pharmaceutical activities such as anti-inflammatory, anti-tumor, anti-mutagenic, cytotoxic, anti-hepatotoxic, anti-diabetic, antibacterial etc. This review summarises studies on antiviral activity of triterpenoids and their natural and synthetic derivatives. Possible mechanisms of pharmacological effects on human immunodeficiency virus (HIV) and herpes simplex virus type 1 (HSV-1) as well as the prospects for future applications of these compounds are discussed.
    Źródło:
    Kosmos; 2008, 57, 3-4; 351-361
    0023-4249
    Pojawia się w:
    Kosmos
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Triterpenoid α-amyrin stimulates proliferation of human keratinocytes but does not protect them against UVB damage
    Autorzy:
    Biskup, Edyta
    Gołębiowski, Marek
    Gniadecki, Robert
    Stepnowski, Piotr
    Łojkowska, Ewa
    Powiązania:
    https://bibliotekanauki.pl/articles/1039744.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    UVB
    BrdU incorporation
    Rhaponticum carthamoides
    α-amyrin
    antioxidant activity
    Opis:
    Rhaponticum carthamoides plants ("maral root") are widely used in Siberian folk medicine. The present study reports for the first time the presence of pentacyclic terpenoid, α-amyrin, in methanol extract from leaves of this plant. α-Amyrin induced proliferation of human keratinocytes (HaCaT) by about 18% while other extract components were ineffective. A panel of biochemical and cell-based assays testing the antioxidative and cytoprotective activites of α-amyrin indicated no antioxidative activity of this compound. α-Amyrin did not protect HaCaT cells against the damage caused by UVB radiation.
    Źródło:
    Acta Biochimica Polonica; 2012, 59, 2; 255-260
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Hairy root cultures of marigold (Calendula officinalis ) as a source of oleanolic acid glycosides
    Autorzy:
    Markowski, M.
    Alsoufi, A.S.M.
    Paczkowski, C.
    Szakiel, A.
    Dlugosz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/951301.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    conference
    hairy root culture
    marigold
    Calendula officinalis
    triterpenoid
    oleanolic acid glycoside
    jasmonic acid
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2015, 96, 1
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    In vitro root cultures of Lychnis flos-cuculi L. as a potential source of triterpenoid saponins and ecdysteroids
    Autorzy:
    Malinski, M.
    Sienicka, J.
    Thiem, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/951260.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    conference
    Lychnis flos-cuculi
    perennial plant
    Caryophyllaceae
    in vitro culture
    root culture
    triterpenoid saponin
    ecdysteroid
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2015, 96, 1
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Triterpenoid profile of fruit and leaf cuticular waxes of edible honeysuckle Lonicera caerulea var. kamtschatica
    Autorzy:
    Becker, R.
    Paczkowski, C.
    Szakiel, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/56920.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Opis:
    Edible honeysuckle (honeyberry) Lonicera caerulea is becoming popular as a novel berry crop with several useful features such as early fruit ripening and exceptional hardiness, particularly resistance to pests and diseases as well as severe frosts in winter and droughts in summer. The triterpenoid profile of fruit and leaf cuticular waxes of edible honeysuckle (a Russian cultivar Chernichka) was analyzed by GC-MS. The major compounds identified were the tetracyclic triterpenoids campesterol, cholesterol, cycloartanol, cycloart-23-ene-3,25-diol, 24-methylenecycloartanol (only in leaves), sitosterol, stigmasta-3,5-dien-7-one, and stigmasterol; and the pentacyclic triterpenes: α-amyrin, β-amyrin, hop-22(29)-en-3-one, oleanolic acid, and ursolic acid. Several remarkable features of the analyzed triterpenoid contents were revealed, including the relatively low abundance of triterpenoids in fruit waxes (6.5% of wax extract) compared to leaf waxes (22%), and a particularly high proportion of tetracyclic triterpenoids (tetracyclic to pentacyclic compound ratios of 4:1 in fruits and almost 7:1 in leaves). These rare features distinguish the triterpenoid profile of the cuticular waxes of L. caerulea var. kamtschatica from the majority of triterpenoid profiles in plant cuticular waxes investigated to date. To our knowledge, this is the first quantitative compositional study on triterpenoid compounds in the cuticular waxes of edible honeysuckle, supplementing the knowledge of cuticular triterpenoid diversity and distribution.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2017, 86, 1
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Pentacyclic triterpenoids and polyphenols accumulation in cell suspension culture of Chaenomeles japonica (Thunb.) Lindl. ex Spach
    Autorzy:
    Kikowska, M.
    Wlodarczyk, A.
    Stochmal, A.
    Zuchowski, J.
    Thiem, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/71498.pdf
    Data publikacji:
    2019
    Wydawca:
    Instytut Włókien Naturalnych i Roślin Zielarskich
    Tematy:
    pentacyclic triterpenoid
    triterpenoid
    polyphenol
    accumulation
    cell suspension
    callus
    Chaenomeles japonica
    Japanese quince
    chlorogenic acid
    ursolic acid
    oleanolic acid
    Opis:
    Introduction: Callus and cell suspension cultures are widely applied in investigation of production of highvalue secondary metabolites, which may be used as cosmeceuticals, nutraceuticals and pharmaceuticals. Plant cell cultures are promising alternative to intact plant sources for the production of plant-derived drugs of industrial importance. Objective: The aim of the study was to (i) initiate the cell suspension culture of Chaenomeles japonica from homogenous and uniform callus, (ii) stabilize the selected line and (iii) verify its ability to produce the desired groups of secondary metabolites – pentacyclic triterpenoids and polyphenols. Methods: To establish a cell suspension culture, stabilized and homogeneous callus was selected. Cell cultures were systematically passaged every 2 weeks to fresh liquid medium with the same composition. Biomass from cultures at the growth phase and stationary phase was designated for phytochemical research. UHPLC-DAD-MS analyzes were performed. At the same time, their macroscopic and microscopic observations were carried out. Results: Cells of suspension culture line A2 were characterized by the intense divisions. Cell culture extracts (both from the growth phase and stationary phase) contained pentacyclic triterpenoids. In addition, phenolic compounds (chlorogenic acid and proanthocyanidins type B) and in a small amount also epicatechin are present in the extract of the cells harvested from the growth phase. In the present studies, three pentacyclic triterpenoids were detected and quantified in the extracts of cell suspensions and callus line A2. Ursolic and oleanolic acids were the main triterpenoids in the studied extracts. The cell suspension culture from the growth phase exhibited the highest content of ursolic, oleanolic, and betulinic acid (separately and together). Conclusion: The cell suspension culture of Chaenomeles japonica is a promising source of pentacyclic triterpenoids.
    Źródło:
    Herba Polonica; 2019, 65, 1
    0018-0599
    Pojawia się w:
    Herba Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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