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Effect of tocopherol content on oxidative and physicochemical stability of shower oils based on natural oils

 

 

 

Key words: 

oxidative and physicochemical stability of shower oils, peroxide value, natural and synthetic antioxidants

Summary

The effect of 0.10% and 0.02% tocopherol (Tocomix L50-IP) and 0.02% BHT, on the oxidative and physicochemical stability of shower oils was studied during storage test at -5oC, 25oC and 40oC for 6 months. The physicochemical stability was monitored by the visual assessment and density determination. The oxidative stability was monitored by the determination of peroxide value. The test revealed that Tocomix L50-IP at higher concentration of 0.1% was more effective antioxidant than 0.04% Tocomix L50-IP and 0.02% BHT in all storage conditions. No physicochemical changes (except colour) were observed in shower oils containing 0.02% and 0.1% Tocomix L50-IP in relation to the control sample in any storage conditions. In shower oils containing 0.02% BHT the slight sediment appeared on the bottom of the bottles after 60 days of storage only at temperature of -5oC. It was observed darkening of the colour of shower oils at 25oC and 40oC in samples containing Tocomix L50IP at both concentrations, and 0.02% BHT. No major changes in density of all shower oils were observed. The test showed that Tocomix L50-IP can be used at concentrations of 0.10% and 0.02% instead of synthetic BHT. 

dr inż. Paulina MALINOWSKA

Poznan University of Economics and Business Institute of Quality Science   Department of Technology and Instrumental Analysis Aleja Niepodległości 10, 61-875 Poznań, Poland e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. 

 

 

 

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