Extracting Eugenol From Cloves?

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Extracting Eugenol from Cloves
UAHuntsville CH331 Lab 7

Figure 1: Photo of Thin-Layer Chromatography using a beaker to hold the solvent. Photo by: Emily Olsen
Emily Olsen
September 7, 2015
September 28, 2015

Eugenol was extracted from cloves using several different laboratory techniques. The three products compared were crude oil, eugenol, and eugenol acetate. The method of comparison for these molecules was thin-layer chromatography (TLC), and will be discussed throughout the paper. Using TLC, there was a clear distinction between the three products and the techniques demonstrated in this lab proved to be successful in extracting these products. The experiment’s results showed Rf values lower than expected, and the percent yield of eugenol acetate was 173% while the percent yield of eugenol was 38%.
Eugenol is part of an essential oil from cloves, but it can also be found in cinnamon, nutmeg, basil, and bay leaves. Eugenol itself has several uses, including anti-inflammatory, anti-microbial, cardiovascular, analgesic, anesthetic, and anti-bacterial uses. In a study done in India, eugenol from cloves was added to cigarettes from both Indian and American brands and exposed to rats. At the end of the study, it was shown that the rats who inhaled the smoke with the eugenol experienced less inflammation in their lungs compared to those without the eugenol (Roemer et al., 2014). The essential oils containing eugenol have also shown extensive
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