Process for converting phytate into inorganic phosphate
AssigneeUniversity of Saskatchewan
InventorsDavid Daniel Maenz, Henry Leonard Classen, Rex Wayne Newkirk
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Abstract
A process is provided for converting phytate in a food into inorganic phosphate. The process comprises the steps of: (i) mechanically mixing a slurry comprising: (a) 100 parts by weight of the phytate-containing food, (b) 60-1000 parts by weight of a solvent mixture which comprises water and a water-immiscible organic solvent having a boiling point of 20-100° C., the water-immiscible organic solvent constituting 20-85% by wt. of the solvent mixture, and (c) a phytase; and (ii) drying the food to remove the organic solvent. The process has the advantage of enabling a high conversion rate of phytate into inorganic phosphate in an economical manner.
Claims18
A process for converting phytate in food into inorganic phosphate, the process comprising:
- (i) mechanically mixing about 100 parts by weight of a phytate containing food with a phytase and about 60 to about 1000 parts by weight of a solvent mixture to form a slurry, the solvent mixture comprising:
- (a) about 20% to about 85% by weight of a water immiscible organic solvent having a boiling point of about 20 to about 100° C., and
- (b) water;
- (ii) incubating the slurry for a time and at a temperature effective for allowing conversion of phytate contained in the food into inorganic phosphate;
- and
- (iii) drying the food to remove organic solvent.
A process for producing an inorganic phosphate enriched food comprising:
- (i) mechanically mixing about 100 parts by weight of a phytate containing food ingredient with a phytase and about 60 to about 1000 parts by weight of a solvent mixture to form a slurry, the solvent mixture comprising:
- (a) about 20% to about 85% by weight of a water immiscible organic solvent having a boiling point of about 20 to about 1000° C., and
- (b) water;
- (ii) incubating the slurry for a time and at a temperature effective for allowing conversion of phytate contained in the food ingredient into inorganic phosphate to provide an inorganic phosphate enriched food ingredient/solvent blend;
- (iii) drying the phosphate enriched food ingredient/solvent blend to remove organic solvent to provide an inorganic phosphate enriched food ingredient;
- and
- (iv) mixing the inorganic phosphate enriched food ingredient with one or more additional alimentary products to form the inorganic phosphate enriched food.
A process for converting phytate in food into inorganic phosphate, the process comprising:
- (i) mechanically mixing about 100 parts by weight of a phytate containing food, a chelating agent, a phytase and about 50 to about 1000 parts by weight of a solvent mixture to form a slurry, the chelating agent in an amount effective for binding inorganic cations in the slurry, the solvent mixture comprising:
- (a) about 20% to about 85% by weight of a water immiscible organic solvent having a boiling point of about 20 to about 100° C., and
- (b) water;
- (ii) incubating the slurry for a time and at a temperature effective for allowing conversion of phytate contained in the food into inorganic phosphate;
- and
- (iii) drying the food to remove organic solvent.
Dependencies are inferred from the claim text.