Patent US3892853A successfully refreshed from Google Patents.
US3892853A
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US
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Stabilized aloe vera gel and preparation of same
Assignee: Aloe 99 & 0 Inc
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Filing: 1971-01-25
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Granted: 1975-07-01
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Expires: 1991-01-25
Abstract
Abstract A process for stabilizing the clear gel of Aloe vera leaves to provide a durable preparation preserving the therapeutic qualities of the fresh gel. The preparation has utility to relieve pain and promote healing of topical wounds and other lesions. Catalytic proportions of nontoxic oxidant are added to a prepared amount of fresh gel, which is brought to a temperature of from about 35* C. to about 80* C. A nontoxic antioxidant is added to poison the catalytic oxidant. Moreover, a nontoxic buffer is added to maintain pH at a range between about 4 and 6. Preferably a nontoxic surfactant is added so that coagulation will not be present in the stabilized gel material of the invention. Also, tocopherols may be added to give color stability to the gel preparation. Preferably sorbitol is utilized along with a deoxidant and tocopherols to prevent bacterial degradation of the gel.
Inventors
- 👤 Henry H Cobble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:26
CPC Classifications
A; A61; A61Q; A61Q19/00; A61K; A61K36/00; A61K36/18; A61K36/88; A61K36/886; A61K8/00; A61K8/02; A61K8/04; A61K8/042; A61K8/18; A61K8/96; A61K8/97; A61K8/9783; A61K8/9789; A61K8/9794; A61K2800/00; A61K2800/40; A61K2800/52; A61K2800/522
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
132 words
THE PROCESS OF STABILIZING THE CLEAR GEL FROM THE LEAF OF ALOE VERA WHICH COMPRISES: A. MECHANICALLY SEPARATING THE NONBRUISED AND NONDISCOLORED ALOE VERA GEL MATRIX FROM THE OUTER GREEN CORTEX OF THE ALOE VERA LEAF, B. HOMOGENIZING SAID ALOE GEL MATRIX AND ADDING A CATALYTIC PROPORTION OF HYDROGEN PEROXIDE THERETO, C. HEATING SAID GEL CONTAINING SAID OXIDANT TO A TEMPERATURE WITHIN THE RANGE OF FROM ABOUT 35*C TO ABOUT 80*C FOR A SUFFICIENT TIME TO CAUSE SAID GEL TO ASSUME A LIGHTER APPEARANCE, D. ADDING AN EFFECTIVE PORPORTION RELATIVE TO SAID OXIDANT OF A NONTOXIC ANTIOXIDANT TO STOP CATALYTIC OXIDATION, AND E, ADDING AN EFFECTIVE PORPORTION RELATIVE TO SAID ANTIOXIDANT OF A NONTOXIC BUFFER SUBSTANCE TO MAINTAIN THE PH OF THE GEL SOLUTION AT A VALUE BETWEEN PH 4 AND PH6.
Claim 2
Dependent Claim
132 words
THE PROCESS OF STABILIZING THE CLEAR GEL FROM THE LEAF OF ALOE VERA WHICH COMPRISES: A. MECHANICALLY SEPARATING THE NONBRUISED AND NONDISCOLORED ALOE VERA GEL MATRIX FROM THE OUTER GREEN CORTEX OF THE ALOE VERA LEAF, B. HOMOGENIZING SAID ALOE GEL MATRIX AND ADDING A CATALYTIC PROPORTION OF HYDROGEN PEROXIDE THERETO, C. HEATING SAID GEL CONTAINING SAID OXIDANT TO A TEMPERATURE WITHIN THE RANGE OF FROM ABOUT 35*C TO ABOUT 80*C FOR A SUFFICIENT TIME TO CAUSE SAID GEL TO ASSUME A LIGHTER APPEARANCE, D. ADDING AN EFFECTIVE PORPORTION RELATIVE TO SAID OXIDANT OF A NONTOXIC ANTIOXIDANT TO STOP CATALYTIC OXIDATION, AND E, ADDING AN EFFECTIVE PORPORTION RELATIVE TO SAID ANTIOXIDANT OF A NONTOXIC BUFFER SUBSTANCE TO MAINTAIN THE PH OF THE GEL SOLUTION AT A VALUE BETWEEN PH 4 AND PH6.
Claim 3
Dependent Claim
23 words
The process of claim 1 wherein said nontoxic antioxidant is selected from the group consisting of sorbic acid, potassium sorbate, and ethylenediaminetetraacetic acid.
Claim 4
Dependent Claim
21 words
The process of claim 2 wherein said nontoxic buffer is selected from the group consisting of ascorbic acid and phosphoric acid.
Claim 5
Dependent Claim
49 words
The process of claim 1 further comprising adding an effective proportion of a nontoxic surfactant to disrupt any formed coagulant in said gel, the surfactant being of a type that for the said proportion of buffer substance, will not change the pH of the gel solution to alkaline levels.
Claim 6
Dependent Claim
21 words
The process of claim 4 wherein said nontoxic surfactant is selected from the group consisting of cetyl alcohol and hesperidin dichalcone.
Claim 7
Dependent Claim
23 words
The process of claim 4 further comprising adding an effective proportion of tocopherol to prevent color change in the stabilized gel after processing.
Claim 8
Dependent Claim
42 words
The process of claim 4 further comprising adding to said solution: a. sufficient sorbitol to prevent the growth therein of bacteria; b. sufficient tocopherol to prevent oxidative decomposition of gel substances; and c. sufficient deoxidant to remove any oxygen from the preparation.
Claim 9
Dependent Claim
60 words
The process of claim 7 wherein said sorbitol is added in amounts of at least about 0.25 milligrams percent of said solution, said deoxidant is 2,6-ditertiary butyl alpha dimethylamino p-cresol added in amounts of at least about 1 milligram percent of said solution, and said tocopherol is added in amounts of at least about 0.01 milligrams percent of said solution.
Claim 10
Dependent Claim
9 words
The product produced by the process of claim 1.
Claim 11
Dependent Claim
161 words
The process of stabilizing the clear gel from the leaf of aloe vera which comprises: a. mechanically separating the nonbruised and nondiscolored aloe gel matrix from the outer green cortex of the aloe vera leaf; b. homogenizing said aloe gel matrix and adding to said gel a catalytic proportion of hydrogen peroxide; c. heating said gel containing said hydrogen peroxide to a temperature within the range of from about 35*C to about 80*C for a sufficient time to cause said gel to assume a lighter appearance; d. adding an antioxidant selected from the group consisting of sorbic acid and potassium sorbate to said gel, said antioxidant being added in an amount of at least 0.5 milligrams percEnt of said gel to stop catalytic oxidation; and e. adding ascorbic acid as a nontoxic buffer to said gel in an amount of at least 0.66 milligrams percent to maintain the pH of the gel at a value between pH 4 and pH 6.
Claim 12
Dependent Claim
161 words
The process of stabilizing the clear gel from the leaf of aloe vera which comprises: a. mechanically separating the nonbruised and nondiscolored aloe gel matrix from the outer green cortex of the aloe vera leaf; b. homogenizing said aloe gel matrix and adding to said gel a catalytic proportion of hydrogen peroxide; c. heating said gel containing said hydrogen peroxide to a temperature within the range of from about 35*C to about 80*C for a sufficient time to cause said gel to assume a lighter appearance; d. adding an antioxidant selected from the group consisting of sorbic acid and potassium sorbate to said gel, said antioxidant being added in an amount of at least 0.5 milligrams percEnt of said gel to stop catalytic oxidation; and e. adding ascorbic acid as a nontoxic buffer to said gel in an amount of at least 0.66 milligrams percent to maintain the pH of the gel at a value between pH 4 and pH 6.
References Cited (Backward Citations)
US3360511A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-30 | 1978-12-30 | 1979-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-30 | 1982-12-30 | 1983-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-30 | 1986-12-30 | 1987-07-01 | $7700.00 | Window Closed / Lapsed |