Method of preparing pregelatinized, partially hydrolyzed starch and related methods and products
US9828441B2 · kind B2 · utility
6Cited by
63References
14Claims
0Family size
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Key dates
| Filing date | Sep 23, 2014 |
| Grant date | Nov 28, 2017 |
| Priority date | — |
| Expiry date | Sep 23, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed are methods relating to an extruded pregelatinized, partially hydrolyzed starch prepared by mixing at least water, non-pregelatinized starch, and acid to form a starch precursor. The acid can be a weak acid that substantially avoids chelating calcium ions or a strong acid in a small amount. In the method, pregelatinization and acid-modification of the starch precursor occurs in one step in an extruder. Also disclosed are methods of preparing board using the starch prepared according to the methods, as well as starches and boards prepared by various methods of the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.