Method for the preparation of highly substituted granular starch

Details Method for the preparation of highly substituted granular starch Method for the preparation of highly substituted granular starch

1976-07-12

1977-09-13

Marquis, Melvyn I.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

536104, 536107, 536108, 536110, 536111, C08B 3102, C08B 3108

Patent

active

040484351

ABSTRACT:
Highly substituted granular starches are prepared by reacting the starch in an aqueous system with a reagent capable of producing an acetal cross-linkage; reacting the resultant acetal cross-linked starch with a mono-functional esterifying or etherifying reagent under aqueous alkaline conditions and removing the acetal cross-linkages by treating under acid conditions. The highly substituted starches are particularly useful in operations, such as papermaking, wherein the cross-linkages can be removed and the starch readily dispersed during a relatively low pH starch cooking process.

REFERENCES:
patent: 2992215 (1961-07-01), Bullock et al.
patent: 3218314 (1965-11-01), Miller
patent: 3438913 (1969-04-01), Hjermstad
patent: 3904601 (1975-09-01), Tessler

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