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Wyświetlanie 1-6 z 6
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 właściwości przeciwdrobnoustrojowe olejku eterycznego i ekstraktu z mięty pieprzowej odmiany ‘Asia’
Chemical composition and antimicrobial properties of essential oil and extract from ‘Asia’ peppermint cultivar
Autorzy:
Adaszynska, M.
Swarcewicz, M.
Markowska-Szczupak, A.
Jadczak, D.
Powiązania:
https://bibliotekanauki.pl/articles/827124.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Technologów Żywności
Opis:
Celem pracy było określenie aktywności biologicznej oraz oznaczenie związków lotnych metodą GC/MS olejku i ekstraktu z mięty. Surowiec do badań stanowiło ziele mięty pieprzowej (Mentha piperita L.) odmiany ‘Asia’, pochodzącej z uprawy doświadczalnej. Olejek eteryczny otrzymywano za pomocą hydrodestylacji przy użyciu aparatu Derynga, a ekstrakt alkoholowy metodą maceracji. Stwierdzono, że badany olejek i ekstrakt z mięty wykazują odmienny skład chemiczny. W olejku zidentyfikowano 45 związków, natomiast w ekstrakcie 15. Olejek charakteryzował się największym udziałem mentolu (24,2 %), izomentonu (11,6 %), izomentolu (7,9 %), eukaliptolu (6,1 %) oraz octanu mentylu (5,8 %). W ekstrakcie dominowały takie związki, jak: mentol (34,4 %), izomenton (17,8 %), neoizomentol (7,1 %). W składzie ekstraktu z mięty oznaczono także metaboliczny prekursor steroli – skwalen, fitol oraz stigmast–8(14)–en–3β–ol. Do oceny aktywności przciwdrobnoustrojowej wobec bakterii i grzybów zastosowano metodę dyfuzyjno-krążkową. Badania wykazały, że bakterie były mniej wrażliwe na działanie olejku miętowego niż grzyby, natomiast ekstrakt nie wykazał aktywności przeciwgrzybicznej.
The objective of the research study was to determine the biological activity of essential oil and extract made from ‘Asia’ peppermint cultivar and to determine the volatile compounds therein using a GC/MS method. The research material constituted the ‘Asia’ cultivar of peppermint herb (Mentha piperita L.) originating from an experimental farm. The essential oil was produced by hydrodistillation using a Deryng apparatus, and the alcoholic extract by maceration. It was found that the essential oil and the extract from peppermint showed different chemical compositions. In the essential oil, 45 compounds were identified, whereas in the extract: 15. The essential oil was characterized by the highest percent content of menthol (24.2 %), isomenthon (11.6 %), isomenthol (7.9 %), eucalyptol (6.1 %), and menthyl acetate (5.8 %). In the peppermint extract, the following compounds prevailed: menthol (34.4 %), isomenthone (17.8 %), and neoisomenthol (7.1 %). Furthermore, the metabolic precursor of sterols, squalene, was determined in the peppermint extract, as were phytol and stigmast 8(14)-en-3β-ol. A disc-diffusion method was applied to assess the antibacterial and antifungal activity. The analyses proved that the bacteria were less sensitive to the peppermint essential oil than the fungi and the extract did not show any antifungal activity.
Źródło:
Żywność Nauka Technologia Jakość; 2013, 20, 2
1425-6959
Pojawia się w:
Żywność Nauka Technologia Jakość
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
Tytuł:
Effect of diet supplemented with black cumin (Nigella sativa) seeds on egg yolk fatty acid profile and egg yolk cholesterol level of Japanese quail (Coturnix japonica)
Wpływ diety zawierającej czarnuszkę siewną (Nigella sativa) na profil kwasów tłuszczowych i zawartość cholesterolu w żółtku jaja przepiórki japońskiej (Coturnix japonica)
Autorzy:
Szczerbińska, D.
Sulik, M.
Majewska, D.
Ligocki, M.
Adaszyńska-Skwirzyńska, M.
Powiązania:
https://bibliotekanauki.pl/articles/2622886.pdf
Data publikacji:
2020
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
black cumin
Nigella sativa
diet supplementation
Japanese quail
Coturnix japonica
egg production
egg yolk
fatty acid profile
cholesterol level
Źródło:
Acta Scientiarum Polonorum. Zootechnica; 2020, 19, 3; 31-38
1644-0714
Pojawia się w:
Acta Scientiarum Polonorum. Zootechnica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-6 z 6

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