The Preparation and Characterization of Starch Oxidized by Nitric Acid and its Properties of Calcium Complexing Capacity
2013 ◽
Vol 652-654
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pp. 1593-1596
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Keyword(s):
The primary hydroxyl groups of Starch Oxidized by nitric acid to the corresponding carboxylic acids has been investigated. The structure of the Oxidized-Starch(OS) was characterized by FT-IR, 1HNMR and GPC. The predicated product was obtained from the results. Its application in calcium complexing capacity has been discussed. The calcium complexing capacity of OS may up to 119.39 mg/g. The data confirmed that the starch oxidized by nitric acid had excellent capacity of calcium complexing.