Intermediate amide pectins

Details Intermediate amide pectins Intermediate amide pectins

1976-01-13

1977-12-27

Griffin, Ronald W.

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

Organic compounds

Carbohydrates or derivatives

C08B 3706

Patent

active

040656144

ABSTRACT:
Novel pectin derivatives having important and useful gel properties are made by direct amidation with high levels of ammonia at low temperatures.
The desirable pectin derivatives have not more than 39% carboxyl groups and at least 27% amide groups. The most desirable pectin derivatives have from 56 to 70% acid plus amide groups, based on the total level of anhydrogalacturonic acid units as 100%, and the preferred amide level is between 30 and 35%. The pectins form 20 to 40% soluble solids gels that are improved in texture and less prone to syneresis over the gel pH range 3 to 4 with a wide range of added calcium ion when compared to gels made with currently known pectins.

REFERENCES:
patent: 2448818 (1948-09-01), McCready et al.
patent: 2478170 (1949-08-01), Maclay et al.
patent: 2480710 (1949-08-01), Bryant
patent: 3622559 (1971-11-01), Wiles et al.
patent: 3835111 (1974-09-01), Ehrlich et al.

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