Determination of iodine numbers of edible oils

Effects of degree of fuel unsaturation on NOx emission from petroleum and biofuel flames

“…During this process, the double bonds of the fatty acids react with iodine to form iodine compounds. As long as the double bonds are available, the color of iodine does not appear in the solution as the iodine is absorbed by the double bonds [14]. Hence, more the extent of unsaturation, more iodine will be absorbed by the sample, and higher is the iodine number.…”

“…Hence, iodine number is widely used to characterize fuel unsaturation of biodiesels in terms of the presence of double bonds and has been widely reported in engine studies using biodiesel [4,5,8,[10][11][12][13][14][15][16][17][18][19]. Iodine number is defined as the number of centigrams of iodine absorbed per gram of the sample.…”

“…In the literature, parameters such as cetane number, iodine number, fuel unsaturation and their influence on combustion temperature and pressure rise inside the combustion chamber, have Nomenclature CME canola methyl ester DOU degree of unsaturation EINO emission index of nitric oxide FAME fatty acid methyl ester IN iodine number PME palm methyl ester RME rapeseed methyl ester SME soy methyl ester U equivalence ratio been widely mentioned and attributed for the NOx formation in IC engines [3][4][5]8,[10][11][12][14][15][16][17][18][19]28]. Furthermore, Love et al [29] studied the effect of iodine number on NOx formation in prevaporized laminar flames of biodiesels like canola methyl ester (CME), soy methyl ester (SME) and methyl stearate to delineate the effects associated with fuel chemistry alone by eliminating parameters such as injection timing, atomization and droplet vaporization phenomena.…”

Lipid profile and levels of omega-3 polyunsaturated fatty acids present in jackfruit (Artocarpus heterophyllus) Lam. (Moraceae) seeds and variation in different treatments

“…The solution was made in such a way that, 1 ml of the solution, contained 26 mg of iodine. The iodine number was calculated by multiplying the volume in (ml), of iodine and mercuric chloride solution used to titrate the lipid solution by 26 and results were expressed in grams of iodine per 100 g of lipid (Gupta and Kanwar, 1994).…”