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Comparison of antioxidant properties of selected long-chain alkyl esters of phenolic acids as potential cosmetic components

 

 

 

 

Key words:

quality of cosmetic products, antioxidants, longchain alkyl esters of phenolic acids, antioxidant properties, cosmetic emulsions.

Summary
Mono- and polyunsaturated fatty acids play significant role in normal functioning of human organism. The ω-3 and ω-6 fatty acids are well known for structural role in the skin and affect its protection function. Therefore, various components rich in these compounds are added to many products such as cosmetic emulsions due to the wide range of their health and nutritional benefits for the end consumers. Unfortunately mono- and polyunsaturated fatty acids are liable to oxidation processes which may lead to persistent deterioration of products quality. For these reason, the searching of new safe and effective antioxidants is fully reasonable. In this study the lipid oxidation of grape seed oil samples with addition of 4.50 μmole oftetradecyl gallate, tetradecyl ferulate and BHT per 100 g of oil was evaluated. The protection factor values of IO) for tested antioxidants were also calculated. Then, the free radical scavenging activity of emulsions with addition of tetradecyl gallate and tetradecyl ferulate was determined by DPPH• assay. The obtained results show that tetradecyl gallate exhibit much higher antioxidant activity than tetradecyl ferulate and BHT. It can be presumed that tested tetradecyl gallate and tetradcyl ferulate may replace synthetic antioxidants in cosmetic formulations.

dr inż. Justyna KIEWLICZ,
prof. dr hab. Henryk SZYMUSIAK
Poznań University of Economics
Faculty of Commodity Science
Department of Technology and Instrumental Analysis
Al. Niepodległości 10, 61-875 Poznań, Poland
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
phone: (+48) 61-854-3870

 

 

 

 

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