Seeking new alternatives to lessen the problems of Public Health due to the severity of the iodine lack in the population we want to verify the Physicalchemical and sensorial alterations of the chlorinated drinking water fortifi ed with two different iodine salts, being those iodide (KI) and potassium iodate (KIO3). In the Physical-chemical evaluation the parameters of Color, Turbidity, Conductivity and pH were used. The water added of iodine was compared to the chlorinated drinking water (0,5mg/L of chlorine) by the Triangular of Difference and Pareado Preferably tests. They were prepared solutions containing 100, 200, 300, 400, 500 μg/L of KI and 500, 1000, 2000μg/L of KIO3. The sensorial panel was formed with 30 to 52 voluntaries. The physical-chemical alterations were adapted with the values of effective reference. The Sensorial differences were observed among the chlorinated drinking water (control) and the solutions of KI in the concentrations of 500, 400 and 200μg/L, being obtained preference by the chlorinated drinking water (p < 0,05). For the solutions of KIO3 and the control, signifi cant diference was not observed. The fortifi cation of water with iodine salts doesn´t alter the physical-chemical and sensorial characteristics when it is used concentrations of inferior KI inferior to 200μg/L and inferior to 2000μg/L of iodine by the employment of KIO3

L. A. Oliveira

Papers

Alterações físico-química e sensorial da água potável fortificada com diferentes sais de iodo