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US4659390A Expired / Lapsed US ⏱️ 0.0 years remaining

Method and manufacture for moisture-stable, inorganic, microporous saccharide salts

Assignee: General Foods Corp
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Filing: 1984-11-26
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Granted: 1987-04-21
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Expires: 2004-11-26
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Abstract

Abstract The present invention provides a method for complexing a metal cation and a saccharide to form thereby a cation-saccharide salt. Upon instantly solidifying and dehydrating particles of said cation-saccharide compound, a highly microporous material results, said material being capable of adsorbing large volumes of volatile flavor/aroma or gaseous compounds.

Inventors

  • 👤 Bary L. Zeller
  • 👤 Randal P. McKay
  • 👤 Fouad Z. Saleeb

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 17:14
CPC Classifications
C; C13; C13B; C13B50/00; C13B50/002; A; A23; A23L; A23L27/00; A23L27/70; C07; C07H; C07H3/00; C07H3/02; C07H3/04

Claims Analysis

Total Claims: 18
Claim 1
Independent Claim 173 words
A method for producing a volatile flavor or aroma or gas-containing, microporous, non-hygroscopic, water-soluble cation-saccharide salt having a surface area of at least 10 m 2 /g comprising the steps of: (a) forming an aqueous solution of an inorganic compound and a water-soluble saccharide, said compound being present in an amount effective to raise the pH of the solution to between 9 and 14, and wherein the molar ratio of inorganic cation to saccharide is from about 0.5 to 1.5 moles of cation to 1.0 mole of saccharide; (b) providing conditions such that the inorganic compound dissociates to form a dissolved cation and dissolved anion and a saccharide-cation salt is formed, said salt being soluble in water and insoluble in alcohol; (c) spraying the saccharide-cation-containing solution of step (b) into a frigid, dehydrating solvent which quickly solidifies and dehydrates the spray droplets; (d) separating the solidified particles from the solvent; and thereafter, (e) loading the dried microporous particles of step (d) with sorbed gas or volatiles at from 0.1 to 20% by weight.
Claim 2
Independent Claim 173 words
A method for producing a volatile flavor or aroma or gas-containing, microporous, non-hygroscopic, water-soluble cation-saccharide salt having a surface area of at least 10 m 2 /g comprising the steps of: (a) forming an aqueous solution of an inorganic compound and a water-soluble saccharide, said compound being present in an amount effective to raise the pH of the solution to between 9 and 14, and wherein the molar ratio of inorganic cation to saccharide is from about 0.5 to 1.5 moles of cation to 1.0 mole of saccharide; (b) providing conditions such that the inorganic compound dissociates to form a dissolved cation and dissolved anion and a saccharide-cation salt is formed, said salt being soluble in water and insoluble in alcohol; (c) spraying the saccharide-cation-containing solution of step (b) into a frigid, dehydrating solvent which quickly solidifies and dehydrates the spray droplets; (d) separating the solidified particles from the solvent; and thereafter, (e) loading the dried microporous particles of step (d) with sorbed gas or volatiles at from 0.1 to 20% by weight.
Claim 3
Dependent Claim 27 words
A method according to claim 1 wherein the cation is monovalent and is selected from the group consisting of Li, Na, K, Rb, Cs and combinations thereof.
Claim 4
Dependent Claim 27 words
A method according to claim 1 wherein the cation is divalent and is selected from the group consisting of Mg, Ca, Sr, Zn, Ba and combinations thereof.
Claim 5
Dependent Claim 25 words
A method according to claim 1 wherein the cation is trivalent and is selected from the group consisting of Al, Ce, La and combinations thereof.
Claim 6
Dependent Claim 17 words
A method according to claim 1 wherein the anion comprises an oxide, a hydroxide, or a carbonate.
Claim 7
Dependent Claim 17 words
A method according to claim 1 wherein the saccharide consists of monosaccharide, disaccharide, polysaccharide or mixtures thereof.
Claim 8
Dependent Claim 21 words
The method according to claim 1 wherein the solvent is an anhydrous alcohol having a temperature at or below -60° C.
Claim 9
Dependent Claim 17 words
A method according to claim 1 wherein the mole ratio of cation to saccharide is about equimolar.
Claim 10
Independent Claim 169 words
A method for producing a volatile flavor or aroma or gas-containing, microporous, non-hygroscopic water-soluble cation-saccharide salt having a surface area of at least 10 m 2 /g comprising the steps of: (a) forming an aqueous solution of an inorganic compound and a water-soluble saccharide, said compound being present in an amount effective to raise the pH of the solution to between 9 and 14, and wherein the molar ratio of inorganic cation to saccharide is from about 0.5 to 1.5 moles of cation to 1.0 mole of saccharide; (b) providing conditions such that the inorganic compound dissociates to form a dissolved cation and dissolved anion and a saccharide-cation salt is formed, said salt being soluble in water and insoluble in alcohol; (c) spraying the saccharide-cation-containing solution of step (b) into a liquid cryogen to quickly freeze the spray droplets; (d) freeze drying the frozen spray droplets; and thereafter, (e) loading the dried microporous particles of step (d) with sorbed gas or volatiles at from 0.1 to 20% by weight.
Claim 11
Independent Claim 169 words
A method for producing a volatile flavor or aroma or gas-containing, microporous, non-hygroscopic water-soluble cation-saccharide salt having a surface area of at least 10 m 2 /g comprising the steps of: (a) forming an aqueous solution of an inorganic compound and a water-soluble saccharide, said compound being present in an amount effective to raise the pH of the solution to between 9 and 14, and wherein the molar ratio of inorganic cation to saccharide is from about 0.5 to 1.5 moles of cation to 1.0 mole of saccharide; (b) providing conditions such that the inorganic compound dissociates to form a dissolved cation and dissolved anion and a saccharide-cation salt is formed, said salt being soluble in water and insoluble in alcohol; (c) spraying the saccharide-cation-containing solution of step (b) into a liquid cryogen to quickly freeze the spray droplets; (d) freeze drying the frozen spray droplets; and thereafter, (e) loading the dried microporous particles of step (d) with sorbed gas or volatiles at from 0.1 to 20% by weight.
Claim 12
Dependent Claim 13 words
The method according to claim 9 wherein the liquid cryogen is liquid nitrogen.
Claim 13
Dependent Claim 27 words
A method according to claim 9 wherein the cation is monovalent and is selected from the group consisting of Li, Na, K, Rb, Cs and combinations thereof.
Claim 14
Dependent Claim 27 words
A method according to claim 9 wherein the cation is divalent and is selected from the group consisting of Mg, Ca, Sr, Zn, Ba and combinations thereof.
Claim 15
Dependent Claim 25 words
A method according to claim 9 wherein the cation is trivalent and is selected from the group consisting of Al, Ce, La and combinations thereof.
Claim 16
Dependent Claim 17 words
A method according to claim 9 wherein the anion comprises an oxide, a hydroxide, or a carbonate.
Claim 17
Dependent Claim 17 words
A method according to claim 9 wherein the saccharide consists of monosaccharide, disaccharide, polysaccharide or mixtures thereof.
Claim 18
Dependent Claim 17 words
A method according to claim 9 wherein the mole ratio of cation to saccharide is about equimolar.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-04-20 1990-10-20 1991-04-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-04-20 1994-10-20 1995-04-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-04-20 1998-10-20 1999-04-21 $7700.00 Window Closed / Lapsed

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