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    Wyświetlanie 1-4 z 4
    Tytuł:
    Olejki eteryczne jako substancje aktywne lub konserwanty w kosmetykach
    Essential oils as an active ingredients or preservativies in cosmetics
    Autorzy:
    Adaszyńska, M.
    Swarcewicz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/172463.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Chemiczne
    Tematy:
    olejki eteryczne
    konserwacja alternatywna
    konserwacja naturalna
    działanie przeciwdrobnoustrojowe
    działanie antyoksydacyjne
    biopestycydy
    essential oils
    alternative and natural preservation
    antimicrobial activity
    antioxidant activity
    biopesticides
    Opis:
    An important trend in current cosmetic industry is increasing demand for new, biologically active compounds and preservatives of natural origin. These products constitute a major ingredients of natural (organic) cosmetics and usually may also be used in typical cosmetics as functional additives. This work summarizes the perspectives of the use of essential oils as active ingredients and preservatives in cosmetic products and as biopesticides. Brief characteristics of essentials oils, their preparation and biological activity is provided. Literature data suggests that essential oils exhibit broad therapeutic effects including antibacterial, antiseptic, antifungal and antioxidant activity, they can be also used as transdermal enhancers. On the other hand, in essential oil have been found compounds which can be use as a biopesticides. The use of essential oils in cosmetic products is possible, but requires a detailed knowledge regarding their compatibility, active concentration as well as toxicological and skin irritant characteristics. The literature review, presented in this paper, shows the great potential of essential oils as a biologically active preservatives and antioxidants, repellents and transepidermal enhancers.
    Źródło:
    Wiadomości Chemiczne; 2012, 66, 1-2; 139-158
    0043-5104
    2300-0295
    Pojawia się w:
    Wiadomości Chemiczne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wybrane substancje chłodzące stosowane w kosmetykach
    Selected cooling compounds used in cosmetics
    Autorzy:
    Adaszyńska, M.
    Swarcewicz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/172597.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Chemiczne
    Tematy:
    substancje chłodzące
    mentol
    pochodne mentolu
    amidy
    kosmetyki
    cooling ingredients
    menthol
    menthol-related
    carboxamide
    cosmetics
    Opis:
    Menthol and new cooling compounds are widely used to improve modern toothpastes, gums, breath fresheners, cosmetic lotions, deodorants, shaving gels, and shaving aid composites. This paper reviews the use of menthol and new classes of cooling agents, that have been discovered since the 1970s, in cosmetic preparations. We have presented here 57 chemical structures. In addition, we briefly touch upon cold receptors and mechanism of action. Finally, we add up, recent findings on the production of cooling ingredients in the world. The underlying process in thermoreception depends on ion transport across cellular membranes. Thermoreceptors belong to a class of transient receptor potential (TRP) channels. Among them are temperature-sensitive thermoreceptors TRPM8 or TRPA 1. Certain types of chemical agonists activate the same thermoTRP channels, as for example menthol or icilin. Only the (–)-menthol enantiomer possesses clean, desirable minty odor and intense cooling properties (Fig. 1). Natural menthol is normally about 99.0% to 99.6% pure, with the remaining impurities being other constituents found in the cornmit oil. Synthetic (–)-menthol is normally about 99.8% pure and has less of the minty top note than the natural menthol. The other natural and synthetic compounds being menthol-related coolants are showed in Figure 3, as for example, menthone 1,2-glycerol ketal (17). From among 3-carboxamide-p-menthane derivatives as commercial cooling agents (Fig. 4), there are for example N-ethyl-pmenthane- 3-carboxamide (25) as WS-3 and [ethyl 3-(p-menthane-3-carboxamido) acetate] as WS-5, which is currently the coldest of all commercial cooling agents (27). Other examples of recently discovered carboxamide coolants belong to a series of analogs of WS-23 (28). Of particular interest are various aryl p-menthane-3- carboxamides, such as N-benzo[1,3]dioxol-5-yl-3-p-menthanecarboxamide (36), which was reported to have 100 times more cooling intensity than menthol (Fig. 6). In 2010, Furrer disclosed a series of new p-menthane carboxamide and WS-23 analogs as cooling agents [56]. Three particularly potential cooling agents 50, 51 and 52 are shown in Figure 9.
    Źródło:
    Wiadomości Chemiczne; 2012, 66, 5-6; 543-562
    0043-5104
    2300-0295
    Pojawia się w:
    Wiadomości Chemiczne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wybrane wtórne metabolity roślinne jako środki przeciwdrobnoustrojowe
    Secondary plant metabolities as antimicrobial agents
    Autorzy:
    Adaszyńska, M.
    Swarcewicz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/172678.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Chemiczne
    Tematy:
    właściwości przeciwdrobnoustrojowe
    wtórne metabolity roślinne
    medycyna naturalna
    antimicrobial properties
    secondary metabolites of plants
    herbal medicines
    Opis:
    One of the oldest achievements of the human thought is the use of plants and plant extracts in therapeutics. Drugs of a plant origin are characterized by multieffects. In recent years, much interest was directed at medicinal plants containing a mixture of biologically active substances with antimicrobial properties. In medicine, for many years have been used substances extracted from plants and their secondary metabolites and plant extracts, but now due to the development of organic chemistry, pharmacology and medicine, we can determine which biologically active substances produced by these plants are useful. Antimicrobial activity were described for selected groups of plant secondary metabolites, which potentially would allow their use as antimicrobial substances in medicines. These substances can be complementary to basic medical treatment, because their main advantage is a lower incidence of side effects. This paper presents an overview of research on antimicrobial properties of alkaloids, coumarins, flavonoids, terpenoids and essential oils, phytosterols, and tannins and phenolic compounds. Examples of alkaloids active against strains of S. aureus, E. faecalis and E. coli are quindoline (1) and cryptolepine (2) which are components of an extract of Sida acuta [7]. Saal et al. described the effect of 7-amino-4-methylcoumarin (8) and daphnetin (9) isolated from Gingo biloba. These compounds are characterized by activity against strains of the genus S. aureus, E. coli and Salmonella entertidis [5]. Apigenin (15) and amentoflavone (16) have a strong activity against pathogenic fungi Candida albicans, S. cerevisiae, and T. beigelii. Terpenoids are potent phorbol esters (21-26), dustanine (27), 15-acetoxydustaine (28), cycloartenole (29) [14]. Several phytosterols has antibacterial activity [2, 5, 48]. The examples might be: stigmasterol (36), β-sitosterol (37), epidoxysterol (38) isolated from Morinda citrifolia (Rubiaceae), which were characterized by strong activity against Mycobacterium intracellulare [5]. Many authors reported that the tannins and phenolic compounds were characterized by antimicrobial activity [49-53]. Natural substances that inhibit the growth of microorganisms are becoming an alternative to synthetic compounds, as this literature review confirms it.
    Źródło:
    Wiadomości Chemiczne; 2013, 67, 3-4; 303-319
    0043-5104
    2300-0295
    Pojawia się w:
    Wiadomości Chemiczne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Skład chemiczny i aktywność biologiczna lawendy lekarskiej
    Chemical composition and biological activity of medical lavender
    Autorzy:
    Adaszyńska-Skwirzyńska, M.
    Swarcewicz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/172326.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Chemiczne
    Tematy:
    lawenda wąskolistna
    Lavandula angustifolia
    skład chemiczny lawendy
    biologicznie aktywne substancje
    lavender
    chemical composition of lavender
    biologically active substances
    Opis:
    Lavender Lavandula angustifolia Miller (formerly used synonym of L. officinalis Chaix or L. vera), commonly known as medical lavender is a species of greatest industrial importance. Lavender cultivated to be the most frequently due of the essential oil and the unique biological activity [1–4]. It is clear from the literature on the subject that lavender is characterized by its antimicrobial, antifungal, antioxidant, immunostimulating, and spasmolytic activity [5–18]. It is also claimed that it can be effective in preventing many illnesses. It is proved that lavender essential oil can be an effective drug in the treatment of many neurological disorders [13–18]. The research conducted on animals and humans exhibit activity this plant such as anxiolytic, sedative, sleep-inducing, analgesic, antitumor, anticonvulsant, and mood improving [13–26]. This paper presents an overview of the literature from recent years on the lavender [1–93]. The general characteristics of the plant and the main classes of biologically active substances are discussed. Drew attention to the need for standardization of plant and variety, identification of plant material for use in the following industries: pharmaceutical, chemical, cosmetic and food. It was found that there are few studies comparing the activity of different varieties of lavender. There is also little information about the chemical composition of different parts of the plant. There are current studies conducted towards natural synergies. This plant collects various types of biologically active substances that have therapeutic potential, but the lack of relevant information concerning dosage formulations lavender. Medical lavender (L. angustifolia Miller) has a great potential for future applications.
    Źródło:
    Wiadomości Chemiczne; 2014, 68, 11-12; 1074-1093
    0043-5104
    2300-0295
    Pojawia się w:
    Wiadomości Chemiczne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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