International Science Community Association Research Journal of Chemical Sciences 2231 - 606X 2 1 2012 January 18 Elucidation of Sugar in Edible Fruit-Pineapple (Ananas Comosus) 20 24 EN Matini L. 1 Department of Exact Sciences, E.N.S, University Marien Ngouabi, B.P 69 Brazzaville, CONGO Tathy C. 2 Moutou J.M. 3 BaroteMaqbul A. 1 Department of Physics, Azad college, Ausa-413520, Maharashtra, INDIA YadavAbhijit A. 2 Thin Film Research Laboratory, Department of Physics, Rajarshi Shahu Mahavidyalaya, Latur-413512, Maharashtra, INDIA SurywanshiRangrao V. 3 Thin film and Solar Studies Research Lab, Dept. of Physics, Solapur University, Solapur-413 003, Maharashtra, INDIA DeshmukhLalasaheb P. 4 MasumdarElahipasha U. 5 Okonkwo S.I 1 Anambra State University Uli, Department of Chemistry, Anambra State, NIGERIA Ogbuneke R.U. 2 Alvan Ikoku Federal College of Education, Department of Chemistry, Imo State, NIGERIA Uyo B.K. 3 Federal University of Technology Owerri, Department of Chemical Engineering, Imo State, NIGERIA > Research Paper 2011 11 3 2012 January 18 Sugar present in the juice of pineapple (Ananas Cosmosus) which is edible crystalline carbohydrate mainly sucrose, lactose and fructose was elucidated. Pineapple juice was extracted from the pineapple sample bought from Ekeonunwa market Owerri, Imo State. Qualitative and quantitative analysis were carried out. The qualitative analysis was carried out by using Benedict reagent, Seliwanoff’s reagent, phenylydrazine and thin layer chromatography. The quantitative evaluation was carried out by Dichromate method using glucose and fructose as standards. The results obtained for qualitative analysis showed that the juice contain glucose and fructose. The amount of glucose found was 3.9x10-2g/cm and 1.41x10-2g/cm for fructose in the quantitative analysis. Copyright@ International Science Community Association