A rose by any name, will still be beautiful, Shakespeare said. The beauty of the rose is often a symbol of romance and love. But you know, roses are also full efficacy of treatment?
Roses have been planted for garden plants and cut flowers for decoration and a source of natural fragrances and flavorings. Now there are no fewer than 7,500 varieties of roses throughout the world. Not only enhance your home and garden, history also shows the rose has been used in medicine, food, perfume, and health.
Roses have essential oils for perfumes that are widely used in cosmetics. Then the scent of roses can be made into many derivatives, the water rose to rose oil.
. Knowing there are many uses of rose, and Dalina Roziana researchers working to find the use of roses for healthcare In October 2010, by trying to discover antibacterial agents in it. They do this by extracting the fresh roses.
Influenced by how our ancestors used plants to cure various diseases, and Dalina Roziana found that botanical extracts have long been used to treat disease. Plants are known to have a rich source of valuable compounds and have been a major source of primary health care in many developing countries.
This compound is used as the active principle of many drugs. Screening of plant extracts such as antimicrobial activity is always be interesting for scientists to find new sources for additional food, cosmetics and medicines.
Dalina Roziana saw that a rose has the potential of microbial activity. They try to prove that the use of ethno botanical rose petals can be a drug diarrhea and enlarged tonsils, usually caused by E coli .
In their experiment, the extraction process by using several solvents performed, testing the antibacterial activity of extracts of Escherichia coli gram-negative bacteria, through a method of Kirby-Bauer disc diffusion.
Petal tissue may have antibacterial activity as a natural protection system for further reproduction and preservation through seed formation. So many varieties of roses have been studied for potential differential activity at the level of genotypic and found to be active against the spectrum of gram-positive bacteria and gram-negative with a different profile of activity.
A different polarity compounds is taken from the roses, but in this study, extracted from the residue of roses. At the rose extract usually contains linalool, phenylethyl alcohol, citronelol, nerol and geraniol. While the main compound extracted by solvent extraction roses are isopropyl myristate, rhondinol, 1-nonadecene and heneicosane. These compounds can be detected by gas chromatography with spectrometry tools, and generally, they have a different polarity in which they will be separated into groups like that of the solvent polarity.
For the purpose of solvent extraction method to separate organic mixtures into a same group of compounds, theoretically, polar compounds have a tendency to be extracted with polar solvents. Therefore, non-polar compounds will be selected to be non-polar solvent.
To find the values of antibacterial, Roziana and Dalina using Kirby Bauer diffusion test. This is to determine the susceptibility or resistance of pathogenic aerobic and facultative anaerobic bacteria to various antimicrobial compounds.
The good news and Dalina Roziana found that fresh roses which are extracted from ethyl acetate showed the most promising results from the four other extracts. It showed 39 mm inhibition zone in Mueller Hinton for, the largest diameter zone compared with other extracts, suggesting that Gram-negative bacteria from the E coli that are highly vulnerable to extract. This means increased potential extract to kill or inhibit the growth of E coli. They concluded that polar compounds between the roses either fresh or residue, they provide great potential as an antibacterial agent to inhibit E coli.
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