In the industrial processing of mango, the by-products, stone and shell are usually discarded without its proper use. The objective of this study was to investigate the physicochemical and functional properties of native and acidified starch separated from mango kernels, Tommy Atkins variety, searching for a new source of starch, ways to improve it and contribute to the use of residue food industry. The kernels were removed manually and the extraction of starch proceeded. The native starch was acidified with hydrochloric acid. It was detected the chemical composition of native starch. - We also determined the functional and paste properties of native and acidified starch. For the chemical composition the native starch presented 71.56% starch, 7.30% lipids and 5.6% proteins. The native and acidified starches showed low resistance to high temperature, with maximum swelling at 75oC, their values being 9.395 and 6.861 g/g, respectively. The solubility was found to be increasing as the temperature was elevated and its maximum value 48.03% for acidified starch. The native starch exhibited greater capacity to absorb water, oil and paste clarity. This starch also showed a higher peak viscosity, hold, breakdown, final viscosity, setback and paste temperature than acidified starch. The native starch can be indicated to form dehydrated soups and meat products while the acidified starch can be used in frozen and chilled food and candy industry.
modified starch; viscosity; RVA
