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Article Detail
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Spectroscopic and Physicochemical Characteristic of Ozonated Rice Brand Oil as Antimicrobial
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| Author:
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E. ENJARLIS, SOFA FAJRIAH, SETIJO BISMO, DIKA HARDIKA , SRI HANDAYANI , SONY OSCAR EFFENDI, MARCELINUS CHRISTWARDANA
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| Abstract:
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Rice Brand Oil (RBO) is a vegetable oil, containing active substances that are very good for health and
medicine. The use of RBO can be expanded by ozonation of unsaturated fatty acids in RBO to produce 1,2,4
trioxolane, aldehydes, hydroperoxides and peroxides as anti-viruses in patients with HIV, hepatitis, bird flu etc.
The effect of the ozonation process on the characteristics of Rice Bran Oil (RBO) is estimated. Spectroscopic
characteristics were analysed by GCMS and
C-NMR, while physical and chemical characteristics were studied
by density, viscosity, pH, iodine number, peroxide number, and acid number. In addition, RBO color changes
during the ozonation process also change. The carbon double bond in the RBO decreases with increasing
ozonation time. 1,2,4 Trioxolane, aldehydes and peroxide are the main products in ozonation reactions. The
presence of 1,2,4-trioxolane can be removed by gas chromatography and nuclear magnetic resonance
spectroscopy analysis, where it arises during the 25-hour ozonation process, and the expanded field increases
and ozonates for 175 hours. From
13
C-NMR spectrum, the presence of ozonides was confirmed by the signals
at ?C 104.5 ppm. Some saturated fatty acids formed during the ozonation processes from GCMS analysis, such
as 1,1-dimethoxydodecane and methyl myristate, proved that ozone as mediator reacted with the unsaturated
fatty acid and broke down the double chain of C=C bond to become -C-C- bond. The amount of iodine
decreases because the carbon double bonds change into a single bond and the amount of peroxide and acid
increases because the component bonds have a single carbon bond, namely 1,2,4 Trioxolane, aldehydes and
peroxide. The formation of 1,2,4-trioxolane and other single carbon bond compositions having higher
molecular weight increases density and viscosity. Using existing ozone generators requires a longer ozonation
time to place the RBO in saturated conditions and make 1, 2, 4-trioxolane unstable and degraded.
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| Keyword:
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Ozone, 13 C NMR, Peroxide Number, Iodine Number, 1,2,4-Trioxolane
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| EOI:
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| DOI:
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| Download:
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