Improved Calcium Sequestering Carbohydrate Based Agents
The improved tandem oxidation sequence of starch with the aim of developing, e.g. degradable co‐builders suitable for laundry formulations as an alternative to the currently used polyacrylates is described. The tandem oxidation of starch starts with sodium periodate treatment of granular starch foll...
Saved in:
Published in | Die Stärke Vol. 55; no. 10; pp. 443 - 449 |
---|---|
Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Weinheim
WILEY-VCH Verlag
01.10.2003
WILEY‐VCH Verlag Wiley-VCH |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The improved tandem oxidation sequence of starch with the aim of developing, e.g. degradable co‐builders suitable for laundry formulations as an alternative to the currently used polyacrylates is described. The tandem oxidation of starch starts with sodium periodate treatment of granular starch followed by oxidation of the dialdehyde product with sodium chlorite to dicarboxy starch. It turns out that improving the periodate oxidation resulting in a more complete transformation of the glucose moiety into the dialdehyde product yields, after sodium chlorite oxidation, a dicarboxy starch with a calcium sequestering capacity of 3.3 mmol Ca2+ per gram of dicarboxy product. This is an improvement of about 25% compared with current literature data. |
---|---|
Bibliography: | istex:E1E64EF10CD38DD641E486C032544FAE157E276B ark:/67375/WNG-T029RGQQ-L ArticleID:STAR200300216 |
ISSN: | 0038-9056 1521-379X |
DOI: | 10.1002/star.200300216 |