Národní úložiště šedé literatury Nalezeno 2 záznamů.  Hledání trvalo 0.00 vteřin. 
Determination of volatile substances of natural extracts intended for cosmetic application
Paskevych, Olha ; Řezáčová, Veronika (oponent) ; Mravcová, Ludmila (vedoucí práce)
This bachelor’s thesis is focused on observation of natural commercially available extracts that are used in natural cosmetics. The literature review was focused on the topic of the content of volatile substances in natural extracts used in cosmetics, their characterization and determination possibilities, and the issue of the occurrence of allergens in natural cosmetics. Based on that review was designed an optimal method for the analysis of samples of natural extracts, taking into account the available analytical instrumentation. The following extracts have been studied with a focus on qualitative determination: almond, aloe vera, clove, Ethiopian coffee, ginger, onion.
Determination of volatile substances of natural extracts intended for cosmetic application
Paskevych, Olha ; Řezáčová, Veronika (oponent) ; Mravcová, Ludmila (vedoucí práce)
This bachelor’s thesis is focused on observation of natural commercially available extracts that are used in natural cosmetics. The literature review was focused on the topic of the content of volatile substances in natural extracts used in cosmetics, their characterization and determination possibilities, and the issue of the occurrence of allergens in natural cosmetics. Based on that review was designed an optimal method for the analysis of samples of natural extracts, taking into account the available analytical instrumentation. The following extracts have been studied with a focus on qualitative determination: almond, aloe vera, clove, Ethiopian coffee, ginger, onion.

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