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US 6,664,300 B2Granted
Process for producing carotenoid emulsion
AssigneeKuraray Co., Ltd.
InventorsToshiki Mori, Satoshi Mimura, Tomonari Nakatani
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AssigneeKuraray Co., Ltd.
InventorsToshiki Mori, Satoshi Mimura, Tomonari Nakatani
Estimating the term…
A process for producing a carotenoid emulsion which comprises heating a suspension of the carotenoid in a high boiling organic liquid, by passing the suspension through a conduit of 0.1 to 50 mm inside diameter heated to a temperature in the range of 120 to 700° C. for a residence time of 0.05 to 5 seconds or by mixing the suspension with a high boiling organic liquid heated to the range of 120 to 500° C. for a time of 0.05 to 10 seconds, to dissolve the carotenoid, and then immediately adding the resulting solution into an aqueous solution of an emulsifier to emulsify the solution. By this production process, an emulsion containing a carotenoid as an effective ingredient can be produced with the carotenoid maintaining a high total trans-form proportion, with good productivity, conveniently, and industrially advantageously.
A process for producing a carotenoid emulsion which comprises heating a suspension of the carotenoid in a high boiling organic liquid having a boiling point of at least 150° C. (hereinafter referred to as carotenoid suspension), by passing the suspension through a conduit of from 0.1 to 50 mm inside diameter heated to a temperature in the range of from 120 to 700° C. for a residence time of 0.05 to 5 seconds or by mixing the suspension with a high boiling organic liquid having a bailing point of at least 150° C. heated to a temperature in the range of 120 to 500° C. for a time of from 0.05 to 10 seconds, to dissolve the carotenoid, and then immediately adding the resulting solution into an aqueous solution of an emulsifier to emulsify the solution, wherein the carotenoid suspension is heated at such a temperature that the carotenoid is not isomerized before it is heated to dissolve the carotenoid.
A process for producing a carotenoid emulsion which comprises heating a suspension of the carotenoid in a high boiling organic liquid having a boiling point of at least 150° C., by passing the suspension through a conduit of from 0.1 to 50 mm inside diameter heated to a temperature in the range of from 120 to 700° C. for a residence time of 0.05 to 5 seconds or by mixing the suspension with a high boiling organic liquid having a boiling point of at least 150° C. heated to a temperature in the range of 120 to 500° C. for a time of from 0.05 to 10 seconds, to dissolve the carotenoid, and then immediately adding the resulting solution into an aqueous solution of an emulsifier to emulsify the solution, wherein the dissolution of carotenoid by heating is carried out by passing the carotenoid suspension through the heated conduit and the length of the conduit of the part heated to a temperature in the range of 120 to 700° C. is 0.3 to 20 m.
A process for producing a carotenoid emulsion which comprises heating a suspension of the carotenoid in a high boiling organic liquid having a boiling point of at least 150° C., by passing the suspension through a conduit of from 0.1 to 50 mm inside diameter heated to a temperature in the range of from 120 to 700° C. for a residence time of 0.05 to 5 seconds or by mixing the suspension with a high boiling organic liquid having a boiling point of at least 150° C. heated to a temperature in the range of 120 to 500° C. for a time of from 0.05 to 10 seconds, to dissolve the carotenoid, and then immediately adding the resulting solution into an aqueous solution of an emulsifier to emulsify the solution, wherein the dissolution of carotenoid by heating is carried out by mixing the carotenoid suspension with the heated high boiling organic liquid.
Dependencies are inferred from the claim text.