Production of pectin from soybeans
AssigneeSoy Pectin, Inc.
InventorsPhilip G. Crandall, Anna M. McCain
Life of this patent
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Abstract
A novel process for extracting pectin from waste hull/hypocotyl streams during soybean processing is disclosed. Chemical extracting agents in addition to or in conjunction with heat and agitation are used to extract pectin from the waste streams. The pectin is then precipitated in alcohol, washed and dried. A process for whitening the extracted pectin is also disclosed.
Claims20
A pectin comprising soy pectinaceous material having a lightness index above about 85 L.
A method for producing soy pectin comprising the steps of:
- extracting a soybean hull/hypocotyl mixture in a mineral acid at an elevated temperature and for a time and at a pH sufficient to extract a pectinaceous soy material from the mixture;
- cooling the extracted pectinaceous material and raising the pH;
- separating the extract from the solid residue;
- precipitating the pectinaceous material in an alcohol;
- and
- drying the pectinaceous material to form soy pectin.
A food stuff comprising a soy pectinaceous material having a lightness index above about 85 L.
A food additive comprising a soy pectinaceous material having a lightness index above about 85 L.
Dependencies are inferred from the claim text.