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http://dx.doi.org/10.5762/KAIS.2014.15.5.3304

A Study on the Volatile Change of Essential Oils Addition on to the Vegetable Fatty Acid Hard Soap  

Lee, Sung-Hee (Interdisciplinary Program of Perfumeand Cosmetics, Graduate Schoolof Chonnam National University)
Lee, Ki-Young (Interdisciplinary Program of Perfumeand Cosmetics, Graduate Schoolof Chonnam National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.15, no.5, 2014 , pp. 3304-3311 More about this Journal
Abstract
In the saponification to manufacture plant fatty acid hard soap, the drying process is required for its water evaporation and hardness. This study mixed it with essential oil(E.O) with high volatility instead of adding synthetic flavor. And it comparatively observed the duration of flavor changing to the additive ($TiO_2$) and the drying period of the major flavor component (Linalool, Linalyl acetate) in the essential oil (Lavender E.O) contained in the soap during the soap manufacture by using GC-MS. Advanced researches have mostly dealt with the utility of plant hard soap, and those related with the volatility of flavor have been hardly conducted. Regarding the volatility of linalool contained in the soap, the soap mixed with $TiO_2$ showed a higher reduction ratio up to the 12th week; however, at the point of the 20th week, it reduced to a similar level. Although Linalyl acetate did indicate a slight difference according to the mixture of $TiO_2$, the volatility was shown similar up to the point of the 20th week. During the 20 weeks of drying, the residual rate of linalool was found to be higher than that of Linalyl acetate regardless of the mixture of $TiO_2$. It has been found that the flavor component of lavender essential oil with the duration of two or so days at the room temperature remains for 20 weeks (or 5 months) when it is manufactured through the mixture of plant fatty acid hard soap.
Keywords
Aroma; Essential oil; GC-MS; Vegetable fatty acid soap; Volatile;
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