AI Article Synopsis
- Researchers developed modified potato starch through alkylation to enhance its ability to solubilize the persistent pollutant benzo[a]pyrene (BaP).
- The alkylation involved three agents, resulting in twelve different starch variants with varying chemical structures and alkyl chain lengths.
- The study found that ether modified starches improved water solubility, while ester modified starches significantly increased BaP solubilization, particularly compounds P6 and P12, which demonstrated high surfactant properties.
Article Abstract
For the development of renewable bioproducts able to solubilize organic persistent pollutant such as benzo[a]pyrene (BaP), modified potato starch was synthesized by alkylation. The addition of alkyl chains was performed with three different alkylation agents: epoxyalkane, alkenyl succinic anhydride and 1,4-butane sultone. Twelve alkylated starches were obtained with different molar substitutions (MS) and various alkyl chain lengths (to three carbons up to sixteen). The chemical structural characteristics were investigated by methods of (1)H NMR and FTIR. In comparison with the native starch, the ether modified starches showed in general an enhancement of their aqueous solubility whereas the ester modified starches stimulated the BaP aqueous solubilization. Indeed, the compounds P6 and P12, which increased 40-fold the BaP aqueous concentration, present high surfactant properties.
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| http://dx.doi.org/10.1016/j.carbpol.2012.06.062 | DOI Listing |
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