CA1220721A - Damaged fish tissue treating method and composition containing aloe vera extract - Google Patents
Damaged fish tissue treating method and composition containing aloe vera extractInfo
- Publication number
- CA1220721A CA1220721A CA000447126A CA447126A CA1220721A CA 1220721 A CA1220721 A CA 1220721A CA 000447126 A CA000447126 A CA 000447126A CA 447126 A CA447126 A CA 447126A CA 1220721 A CA1220721 A CA 1220721A
- Authority
- CA
- Canada
- Prior art keywords
- fish
- aloe vera
- slime
- amount
- composition according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
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- 229910052801 chlorine Inorganic materials 0.000 claims description 3
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- LXCFILQKKLGQFO-UHFFFAOYSA-N methylparaben Chemical compound COC(=O)C1=CC=C(O)C=C1 LXCFILQKKLGQFO-UHFFFAOYSA-N 0.000 description 2
- 150000004045 organic chlorine compounds Chemical class 0.000 description 2
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- 230000017423 tissue regeneration Effects 0.000 description 2
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- ZCTXEAQXZGPWFG-UHFFFAOYSA-N imidurea Chemical compound O=C1NC(=O)N(CO)C1NC(=O)NCNC(=O)NC1C(=O)NC(=O)N1CO ZCTXEAQXZGPWFG-UHFFFAOYSA-N 0.000 description 1
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Landscapes
- Medicines Containing Plant Substances (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A composition comprising an extract of the Aloe vera Linee plant is used to promote healing of damaged fish tissue. It may be used with one or more agents for replacing the natural mucoprotein secretion which coats the skin and scales of fish. The composition may be added to either fresh water or salt water.
A composition comprising an extract of the Aloe vera Linee plant is used to promote healing of damaged fish tissue. It may be used with one or more agents for replacing the natural mucoprotein secretion which coats the skin and scales of fish. The composition may be added to either fresh water or salt water.
Description
:~'Z~7Zl DA~lAGED FISH TISSUE TREATING METHOD AND
CO~POSITION CONTAINING ALOE VERA EXTRACT
_ Backqround of Invention -The present invention is directed to a composition containing an extract of aloe vera which, when added to water containing fish, such as aquarium water, is useful in promoting the healing of injured or damaged fish tissue. The aloe vera extract is a leaf extract Or the Aloe Vera plant.
Every fish has a natural mucoprotein or "slime"
coating covering its skin and scales. The slime coating is the fish's first line of defense against infection.
Recent literature indicates that the slime coating contains enzymes and antibodies to fight infection. The slime coating acts as a shield against disease causing organisms in the fish's external environment. It also acts as a barrier to prevent loss of internal electrolytes and body fluids. It is believed that when even a small portion of the slime coating is removed, the fish will bleed electrolytes from its body into the surrounding water.
Beneath the fish's mucoprotein coating are its scales which can extend to the outer skin surface from the underlying dermal connective tissue. Beneath the `scales in a fish's skin is the epidermis, comprising several layers of cells. The fish epidermis is distinguished from mammalian epidermis in that mammals .
~' !"
lZ~'7~1 require hardened layers of skin to prevent dehydration, whereas in the aquatic environment, the fish has no need for such protection. Thus, unli~e the case in mammals, mitosis is usually seen in the lower layer of the epidermal layer of a fish. Beneath the epidermis of a fish is the dermis comprising fibrous connective tissue interspersed with black pigment cells. The vascular dermal tissue contains a network of capillaries providing nutrient to the skin.
Because a fish is an aquatic animal, its skin differs from that of other animals, and notably mammals.
Accordingly, there is no reason to believe that the skin treatment of one type of skin animal, for example, a mammal, would be effective to treat the skin of another type of animal, for example, a fish.
When a fish is netted, handled or even at times when placed in a stressful situation, such as low oxygen, high carbon dioxide or temperature fluctuations, the slime coating is disturbed, making the fish vulnerable to disease, such as bacterial, fungal and parasitic diseases. Particularly when fish are shipped in high concentrations in low volumes of water, they are sub~ect to trauma such as being scraped, bitten and otherwise wounded. Moreover, ammonia, a waste product of fish's digestion and respiration, is released into the water containing fish. Ammonia is also released at high levels by dead fish and decaying food. At high ammonia levels, the fish are subject to ammonia burns which disturb the slime coating and adversely affect the fish.
rhis invention is based on the discovery that aloe vera extract promotes the healing of damaged fish tissue, and increases the effectiveness of composit~ons used to replace the fish's slime coating.
Although aloe vera has been known for centuries in the treatment of a wide ranye of human skin ailments, its use in treating damaged fish tissue is hitherto unknown. Further, compositions for replacing the slime coating of aquarium fish are known. These compositions senerally contain colloids which replace a fish's natural mucous secretion. However, no prior art slime-replacing composition is known to contain aloe vera.
Definitions o As used herein, "Aloe Vera" is the plant Aloe vera Linne, sometimes referred to as Aloe barbadensis Miller, ~hich is ~nown to those skilled in the art to be the variety of the Aloe vera plant used in the cosmetic industry.
As used herein, "aloe vera extract" means either the liquid extract or gel obtained directly from the inner central zones of the leaves of the Aloe Vera plant, or the gel reconstituted from powdered aloe vera extract.
As used herein, a fish's tissue is "damaged" when at least a portion of the slime coating is removed, îor example, by scraping, bites from other fish or animals, netting, handling, wounds, ammonia burns, or as the result of bacterial, fungal or parasitic infection.
~s used herein, the "fish" which may be treated effectively with the aloe vera extract are substantially any species or varieties of fish which are confined in a reasonable space, such as for breeding, holding, and shipping. Typically, fish treated in accordance with the present invention would be fish held in aquariums o~
various sizes. It is believed to be impractical to treat fish economically in accordance with the present invention when fish are contained in a large la~e, ~
river, or other such body of water. However, fish contained in breeding ponds are specifically included herein.
As used herein, "promote healing" means to heal more quickly and/or more completely. The term is based upon the observation that treatment in accordance with the present invention causes the healing of damaged tissue which did not appear to heal within a reasonable time by itself without the treatment in accordance with the present invention.
As used herein, a fish is "treated" according to ; the present invention when aloe vera extract is administered topically to the fish, as by adding the aloe vera extract to the water containing the fish.
According to the invention, there is provided an aqueous composition for treating damaged fish tissue comprising an aloe vera extract in an amount effective to promote healing of the damaged tissue and at least one slime-replacing coumpound in an amount effective to promote slime replacement of at least a portion of a missing fish slime coating.
The damaged tissue of fish can be treated by the adminstration of a composition comprising aloe vera extract. When administered to the damaged tissue of fish, preferably by being added to the fish-containing water in an effective amount to promote healing of the damaged tissue, this composition is beneficial to the fish. The aloe vera extract may be and preferably is used with other ingredients to replace the slime coating of fish which is often removed when fish are injured.
, ....
Aloe vera extract in the ~orm of a gel may be obtained directly from the thin-walled tubular cells in the inner centxal zone of the leaf (mucilaginous parenchyma) of the Aloe vera Linne plant. The raw gel should contain a small quantity of preservative if it i5 to be stored. Suitable preservatives include 0.15 percent methyl paraben and 0.30 percent imidazolidinyl urea. The gel may be dried, prefera~ly lyophilized, and powdered. If desired, before use, the powdered aloe vera gel may be reconstituted in water, preferably with high speed mixing in warm water. Applicant has used successfully in his invention both liquid VERAGEL*aloe vera gel, ~roduct No. 1501, and powdered aloe vera extract, such as "VERAGEL 200*" both available .from Dr.
Madis Laboratories, Inc., South Hackensack, N.J. The powdered VERAGEL 200*works well when reconstituted in 200 parts by weight of water. ~hen the powdered VERAGEL
200*is reconstituted with 200 parts of warm water it has the same aloe vera concentration as the VE~AGEL No.
1501.* The VERAG~L*products are described more specifically in Bulletin No. 3M82-1501 of Dr. ~ladis Laboratories, Inc.
Only very small concentrations of aloe vera extract are necessary to stimulate and promote healing, as set forth in ~xamples 1 and 2 below. Generally, it is believed that adding aloe vera gel to water containiny the fish in concentrations of about 0.00165 volume percent (about 1/8 teaspoon per 10 gallons) to about 0.026 volume percent (about two teaspoons per lU
gallons) of liquid aloe vera gel, based on the water containing the fish, is effective. Presently, about ~.0033 volume percent (about 1/4 teaspoon per 10 gallons) is the preferred dosaye of the li~uid aloe vera gel. Likewise it is believed that adding to water * Trade Mark . ..
' J~
~0'721 containing the fish about 0.0012 g/l to about 0.013 g~l of powdered aloe vera extract, based on the water containing the fish, is effective. Presently, about 0,0066 g/l (about 0.25 grams per 10 gallons) is the preferred do~age if powdered aloe vera extract is added directly to the water containing the fish.
In addi.ion to the administ~ation of aloe vera extract itself, the present invention contemplates the inclusion of aloe vera extract in a composition which replaces a fish's slime coating.
The composition preferably contains poly-vinylpyrrolidone ("PVP") and carboxymethyl cellulose ("CMC"), both of which act to replace the fish's natural mucoprotein slime coating secretion. PVP is readily available commercially in the United States in four viscosity grades having molecular weights of about 10,000, 40,000, 160,00 and 360,000. The PVP preferred for the present invention is the PVP having the molecular weight of about 40,000 (K-30 available from GAF Corporation). PVP having a higher molecular weight appears to have a gill clogging effect. PVP having an appreciably lower molecular weisht would not seem to coat as well. However, it is believed that PVP having molecular weights over a wide range around 30,000 should be effective in replaciny the slime coating. It is believed that an efective amount of PVP with a molecular weight of about 40,00~ which would be effective to promote the replacement of the natural slime coating of fish would be about 1.3 to about 25 9/l of the composition.
The preferred CMC optionally used in the present invention is sodium carboxymethyl cellulose having a viscosity of 2,500 cps. As with the PVP, the CMC c~n be of several types and have a wide range o~ viscosities, so long as it aids in replacing the slime coating and 12Z07;~1 does not adversely affect the fish, as by blocking the gill lamella. It is believed that an effective amount of sodium carboxymethyl cellulose with a viscosity of
CO~POSITION CONTAINING ALOE VERA EXTRACT
_ Backqround of Invention -The present invention is directed to a composition containing an extract of aloe vera which, when added to water containing fish, such as aquarium water, is useful in promoting the healing of injured or damaged fish tissue. The aloe vera extract is a leaf extract Or the Aloe Vera plant.
Every fish has a natural mucoprotein or "slime"
coating covering its skin and scales. The slime coating is the fish's first line of defense against infection.
Recent literature indicates that the slime coating contains enzymes and antibodies to fight infection. The slime coating acts as a shield against disease causing organisms in the fish's external environment. It also acts as a barrier to prevent loss of internal electrolytes and body fluids. It is believed that when even a small portion of the slime coating is removed, the fish will bleed electrolytes from its body into the surrounding water.
Beneath the fish's mucoprotein coating are its scales which can extend to the outer skin surface from the underlying dermal connective tissue. Beneath the `scales in a fish's skin is the epidermis, comprising several layers of cells. The fish epidermis is distinguished from mammalian epidermis in that mammals .
~' !"
lZ~'7~1 require hardened layers of skin to prevent dehydration, whereas in the aquatic environment, the fish has no need for such protection. Thus, unli~e the case in mammals, mitosis is usually seen in the lower layer of the epidermal layer of a fish. Beneath the epidermis of a fish is the dermis comprising fibrous connective tissue interspersed with black pigment cells. The vascular dermal tissue contains a network of capillaries providing nutrient to the skin.
Because a fish is an aquatic animal, its skin differs from that of other animals, and notably mammals.
Accordingly, there is no reason to believe that the skin treatment of one type of skin animal, for example, a mammal, would be effective to treat the skin of another type of animal, for example, a fish.
When a fish is netted, handled or even at times when placed in a stressful situation, such as low oxygen, high carbon dioxide or temperature fluctuations, the slime coating is disturbed, making the fish vulnerable to disease, such as bacterial, fungal and parasitic diseases. Particularly when fish are shipped in high concentrations in low volumes of water, they are sub~ect to trauma such as being scraped, bitten and otherwise wounded. Moreover, ammonia, a waste product of fish's digestion and respiration, is released into the water containing fish. Ammonia is also released at high levels by dead fish and decaying food. At high ammonia levels, the fish are subject to ammonia burns which disturb the slime coating and adversely affect the fish.
rhis invention is based on the discovery that aloe vera extract promotes the healing of damaged fish tissue, and increases the effectiveness of composit~ons used to replace the fish's slime coating.
Although aloe vera has been known for centuries in the treatment of a wide ranye of human skin ailments, its use in treating damaged fish tissue is hitherto unknown. Further, compositions for replacing the slime coating of aquarium fish are known. These compositions senerally contain colloids which replace a fish's natural mucous secretion. However, no prior art slime-replacing composition is known to contain aloe vera.
Definitions o As used herein, "Aloe Vera" is the plant Aloe vera Linne, sometimes referred to as Aloe barbadensis Miller, ~hich is ~nown to those skilled in the art to be the variety of the Aloe vera plant used in the cosmetic industry.
As used herein, "aloe vera extract" means either the liquid extract or gel obtained directly from the inner central zones of the leaves of the Aloe Vera plant, or the gel reconstituted from powdered aloe vera extract.
As used herein, a fish's tissue is "damaged" when at least a portion of the slime coating is removed, îor example, by scraping, bites from other fish or animals, netting, handling, wounds, ammonia burns, or as the result of bacterial, fungal or parasitic infection.
~s used herein, the "fish" which may be treated effectively with the aloe vera extract are substantially any species or varieties of fish which are confined in a reasonable space, such as for breeding, holding, and shipping. Typically, fish treated in accordance with the present invention would be fish held in aquariums o~
various sizes. It is believed to be impractical to treat fish economically in accordance with the present invention when fish are contained in a large la~e, ~
river, or other such body of water. However, fish contained in breeding ponds are specifically included herein.
As used herein, "promote healing" means to heal more quickly and/or more completely. The term is based upon the observation that treatment in accordance with the present invention causes the healing of damaged tissue which did not appear to heal within a reasonable time by itself without the treatment in accordance with the present invention.
As used herein, a fish is "treated" according to ; the present invention when aloe vera extract is administered topically to the fish, as by adding the aloe vera extract to the water containing the fish.
According to the invention, there is provided an aqueous composition for treating damaged fish tissue comprising an aloe vera extract in an amount effective to promote healing of the damaged tissue and at least one slime-replacing coumpound in an amount effective to promote slime replacement of at least a portion of a missing fish slime coating.
The damaged tissue of fish can be treated by the adminstration of a composition comprising aloe vera extract. When administered to the damaged tissue of fish, preferably by being added to the fish-containing water in an effective amount to promote healing of the damaged tissue, this composition is beneficial to the fish. The aloe vera extract may be and preferably is used with other ingredients to replace the slime coating of fish which is often removed when fish are injured.
, ....
Aloe vera extract in the ~orm of a gel may be obtained directly from the thin-walled tubular cells in the inner centxal zone of the leaf (mucilaginous parenchyma) of the Aloe vera Linne plant. The raw gel should contain a small quantity of preservative if it i5 to be stored. Suitable preservatives include 0.15 percent methyl paraben and 0.30 percent imidazolidinyl urea. The gel may be dried, prefera~ly lyophilized, and powdered. If desired, before use, the powdered aloe vera gel may be reconstituted in water, preferably with high speed mixing in warm water. Applicant has used successfully in his invention both liquid VERAGEL*aloe vera gel, ~roduct No. 1501, and powdered aloe vera extract, such as "VERAGEL 200*" both available .from Dr.
Madis Laboratories, Inc., South Hackensack, N.J. The powdered VERAGEL 200*works well when reconstituted in 200 parts by weight of water. ~hen the powdered VERAGEL
200*is reconstituted with 200 parts of warm water it has the same aloe vera concentration as the VE~AGEL No.
1501.* The VERAG~L*products are described more specifically in Bulletin No. 3M82-1501 of Dr. ~ladis Laboratories, Inc.
Only very small concentrations of aloe vera extract are necessary to stimulate and promote healing, as set forth in ~xamples 1 and 2 below. Generally, it is believed that adding aloe vera gel to water containiny the fish in concentrations of about 0.00165 volume percent (about 1/8 teaspoon per 10 gallons) to about 0.026 volume percent (about two teaspoons per lU
gallons) of liquid aloe vera gel, based on the water containing the fish, is effective. Presently, about ~.0033 volume percent (about 1/4 teaspoon per 10 gallons) is the preferred dosaye of the li~uid aloe vera gel. Likewise it is believed that adding to water * Trade Mark . ..
' J~
~0'721 containing the fish about 0.0012 g/l to about 0.013 g~l of powdered aloe vera extract, based on the water containing the fish, is effective. Presently, about 0,0066 g/l (about 0.25 grams per 10 gallons) is the preferred do~age if powdered aloe vera extract is added directly to the water containing the fish.
In addi.ion to the administ~ation of aloe vera extract itself, the present invention contemplates the inclusion of aloe vera extract in a composition which replaces a fish's slime coating.
The composition preferably contains poly-vinylpyrrolidone ("PVP") and carboxymethyl cellulose ("CMC"), both of which act to replace the fish's natural mucoprotein slime coating secretion. PVP is readily available commercially in the United States in four viscosity grades having molecular weights of about 10,000, 40,000, 160,00 and 360,000. The PVP preferred for the present invention is the PVP having the molecular weight of about 40,000 (K-30 available from GAF Corporation). PVP having a higher molecular weight appears to have a gill clogging effect. PVP having an appreciably lower molecular weisht would not seem to coat as well. However, it is believed that PVP having molecular weights over a wide range around 30,000 should be effective in replaciny the slime coating. It is believed that an efective amount of PVP with a molecular weight of about 40,00~ which would be effective to promote the replacement of the natural slime coating of fish would be about 1.3 to about 25 9/l of the composition.
The preferred CMC optionally used in the present invention is sodium carboxymethyl cellulose having a viscosity of 2,500 cps. As with the PVP, the CMC c~n be of several types and have a wide range o~ viscosities, so long as it aids in replacing the slime coating and 12Z07;~1 does not adversely affect the fish, as by blocking the gill lamella. It is believed that an effective amount of sodium carboxymethyl cellulose with a viscosity of
2,500 cps to replace the slime coat would be up to about 7.5 g/l of the composition.
Also present in preferred embodiments of the composition are a dechlorinating agent, such as sodium thiosulfate or asorbic acid, in an amount effective to neutralize the free chlorine or organic chlorine compounds, such as chloramine, in the water. Sodium thiosulfate is presently preferred. To be effective, it is believed that the sodium thiosulfate should be present in an amount of about 12.S to about 6~ g/l of the composition.
The preferred embodiment of the composition also includes a chelating agent, such as ethylene-diaminetetraacetic acid ("EDTA"). The chelating agent should be present in an amount sufficient to react with and bind potentially and actually toxic heavy metals in the water. Effective amounts of EDTA are believed to be up to about 2 g/l of the composition. This ingredient is also optional and not essential, unless at least potentially toxic levels of heavy metals are contemplated in the water.
A bufferiny agent, such as tris (hydroxymethyl) aminomethane, is also included in the preferred embodiment. The buffer should be present in an excess to maintain the pH of the composition above about 9.~ so that the sodium thiosulfate is stabilized. It is believed that an effective amount of tris (hydroxymethyl) aminomethane is about 0.3 to about l y/l of the composition.
A preservative should also be included so that the aloe vera extract retains its curative properties during storage. A suitable preservative is diazolidinyl urea.
It is believe that an effective amount of preservative would be about l.3 to about 4 g/l of the composition.
The most practical way of administering aloe vera extract to fish is by adding it directly or in a composition containing it either to fresh water or to salt water in aquariums. It may also be added very beneficially as a protective and,healing agent to water contained in vessels or bags used to ship fish prior to or during the shipping process.
The present invention will now be described and explained further by reference to the following specific, illustrative, non-limiting examples. Exam?les 1-3 demonstrate the effectiveness of aloe vera extract in treating damaged fish tissue. Example 4 describes the preparation of an aloe vera composition containing slime-replacing compounds.
xam~les 1 LIQUID ALOE VERA GEL
CO~POSITION TEST ON FISH
A goldfish was placed in a tank with l0 gallons of water after haviny some of its scales removed. Severe hemorrhaging was observed at the location of scale removal. Powdered aloe vera gel extract ("VERAGEL 2~0") was rehydrated in 200 parts by weight of water to form an aqueous solution of aloe vera extract. One-half teaspoon of the aqueous solution was added to the aquarium water on day l. The tank water was changed on days 9, lR and 28. After each water change, the aloe vera gel solution concentration was restored by the addition of one-half teaspoon to the tank water. On day l~Z~721 g 28, the damaged area remained visible, but rawness and bleeding had ceased. Tissue regeneration was noted and no signs of secondary infection were visible.
Exam~le 2 POWDERED ALOE VERA GEL
COMPOSITION TESTED ON FI~H
In another tank containing l0 gallons of water, the procedure of Example l was carried out on ano~her goldfish, substituting powdered aloe vera gel extract ("VERAGEL 200") for the aqueous solution of Example l.
As before, fish scales were removed. The powdered extract was administered after water changes on the following days:
Day l Day 9 Day l8 Day 28 l.0 g. 0.25 g. ~.25 g. 0.2 g.
On day 28 the fish had almost completely healed.
No raw areas or signs of bleeding were visible. Rapid tissue regeneration was noted and only smooth tissue remained over the damaged area.
Example 3 CO~TROL
A goldfish having some of its scales removed was contained in a separate tank. No aloe vera gel composition was added to the tank. Water was changed on days 9, 18 and 28. On day 28 the fish demonstrated continued severe raw tissue and blood spots. The tissues showed no signs of reqeneration.
~z~ zl Example 4 PREPARATION OF LIQUID ~LOE VERA
GEL SLIME-REPLACEMENT COMPOSITION
A 4~ liter batch of aqueous aloe vera gel composition containing slime-replacing compounds was prepared by mixing the following ingredients in the following proportions in accordance with the indicated procedure.
Aloe vera gel ("VERAGEL 1501~') 4 liters sodium thiosulfate 1400 g.
carboxymethyl cellulose 100 9.
polyvinylpyrrolidone 400 9.
ethylenediaminetetraacetic acid 40 9.
tris(hydroxymethyl)aminomethane 17 9.
diazolidinyl urea 80 g.
deionized water enough to dilute to a total volume of 40 liters About 10 liters of the water were added into a small mixing chamber of a high speed shear mixer and, with the mixer on, approximately half of the carboyxmethyl cellulose was dissolved in the water.
When the mixture was smooth, the mixture was transferred into the mixing chamber of a medium speed mixer, such as ., a LIGHTN'N*Mixer. The remaining carboxymethyl cellulose should be mixed with the water as indicated above in the small mixer and then added to the mixiny chamber of the medium speed mixer.
The mixing chamber of the .small mixer was filled with about 10 liters of water and the PVP was mixed with the water while the mixer ran at high speed. ~hen this mixture was smooth, it was added, with mixing, to the carboxymethyi cellulose mixture in the medium speed mixer.
While the medium speed mixer was operating, th~
following ingredients were added to the mixing chamber:
sodium thiosulfate, EDTA, buffer, preservative and aloe * Trade Mark .,-, U~7Zl vera gel. While mixing continued, sufficient water was adàed to make a total volume of 40 liters. After mixing until all ingredients were well blended, the composition was put into several containers.
The composition of Example 4 is preferably added directl~ to aquarium fish water. Although lower dosages may be effective, the recommended dosage is one teas?oonful per ten gallons of aquarium water where the water contains free chlorine. ~hen the water contains organic chlorine compounds, such as chloramine, the recommended dosage is two teaspoons per ten gallons of aquarium water. At this dosage, the diluted concentration, after being added to the fish containing wa~er, is equivalent to about 0 013 volume percent for the composition and about 0.0013 volume percent for the aloe vera active ingredient.
Additional testing with the composition of Example 4 was conducted on tropical fish, both fresh warm water species and salt water species. Thousands of tropical fish were shipped to Philadelphia from Africa and Asia. Many had been confined to their shipping containers for over 36 hours and exhibited severe stress and damage. All tests clearly indicated that within several days, the composition containing the aloe vera extract promoted healing of damaged fish tissue and prevented infection in both fresh and salt water species of tropical fish, as well as cold water fish, such as goldfish.
The composition of Example ~, before addition to the ~ater containing tne fish, may contain about 5~ to about 30% of the aloe vera gel by volume. Presently, about 10~ by volume is preferred. Favorable results have been achieved ~ith compositions containing les~
than S~ aloe vera gel. It is believed that a composition containing as low as 1% aloe vera gel is U7Zl capable of eliciting a healing response in fish when used in the recommended dosage. If desired, other medicaments can be added to, mixed with, formed into tablets or capsules or otherwise combined with the aloe vera extract for treating various fish diseases and damaged fish tissue.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof and, accordingly, reference is made to the appended claims, rather than to the foregoing specification, as indicating the scope of the invention.
Also present in preferred embodiments of the composition are a dechlorinating agent, such as sodium thiosulfate or asorbic acid, in an amount effective to neutralize the free chlorine or organic chlorine compounds, such as chloramine, in the water. Sodium thiosulfate is presently preferred. To be effective, it is believed that the sodium thiosulfate should be present in an amount of about 12.S to about 6~ g/l of the composition.
The preferred embodiment of the composition also includes a chelating agent, such as ethylene-diaminetetraacetic acid ("EDTA"). The chelating agent should be present in an amount sufficient to react with and bind potentially and actually toxic heavy metals in the water. Effective amounts of EDTA are believed to be up to about 2 g/l of the composition. This ingredient is also optional and not essential, unless at least potentially toxic levels of heavy metals are contemplated in the water.
A bufferiny agent, such as tris (hydroxymethyl) aminomethane, is also included in the preferred embodiment. The buffer should be present in an excess to maintain the pH of the composition above about 9.~ so that the sodium thiosulfate is stabilized. It is believed that an effective amount of tris (hydroxymethyl) aminomethane is about 0.3 to about l y/l of the composition.
A preservative should also be included so that the aloe vera extract retains its curative properties during storage. A suitable preservative is diazolidinyl urea.
It is believe that an effective amount of preservative would be about l.3 to about 4 g/l of the composition.
The most practical way of administering aloe vera extract to fish is by adding it directly or in a composition containing it either to fresh water or to salt water in aquariums. It may also be added very beneficially as a protective and,healing agent to water contained in vessels or bags used to ship fish prior to or during the shipping process.
The present invention will now be described and explained further by reference to the following specific, illustrative, non-limiting examples. Exam?les 1-3 demonstrate the effectiveness of aloe vera extract in treating damaged fish tissue. Example 4 describes the preparation of an aloe vera composition containing slime-replacing compounds.
xam~les 1 LIQUID ALOE VERA GEL
CO~POSITION TEST ON FISH
A goldfish was placed in a tank with l0 gallons of water after haviny some of its scales removed. Severe hemorrhaging was observed at the location of scale removal. Powdered aloe vera gel extract ("VERAGEL 2~0") was rehydrated in 200 parts by weight of water to form an aqueous solution of aloe vera extract. One-half teaspoon of the aqueous solution was added to the aquarium water on day l. The tank water was changed on days 9, lR and 28. After each water change, the aloe vera gel solution concentration was restored by the addition of one-half teaspoon to the tank water. On day l~Z~721 g 28, the damaged area remained visible, but rawness and bleeding had ceased. Tissue regeneration was noted and no signs of secondary infection were visible.
Exam~le 2 POWDERED ALOE VERA GEL
COMPOSITION TESTED ON FI~H
In another tank containing l0 gallons of water, the procedure of Example l was carried out on ano~her goldfish, substituting powdered aloe vera gel extract ("VERAGEL 200") for the aqueous solution of Example l.
As before, fish scales were removed. The powdered extract was administered after water changes on the following days:
Day l Day 9 Day l8 Day 28 l.0 g. 0.25 g. ~.25 g. 0.2 g.
On day 28 the fish had almost completely healed.
No raw areas or signs of bleeding were visible. Rapid tissue regeneration was noted and only smooth tissue remained over the damaged area.
Example 3 CO~TROL
A goldfish having some of its scales removed was contained in a separate tank. No aloe vera gel composition was added to the tank. Water was changed on days 9, 18 and 28. On day 28 the fish demonstrated continued severe raw tissue and blood spots. The tissues showed no signs of reqeneration.
~z~ zl Example 4 PREPARATION OF LIQUID ~LOE VERA
GEL SLIME-REPLACEMENT COMPOSITION
A 4~ liter batch of aqueous aloe vera gel composition containing slime-replacing compounds was prepared by mixing the following ingredients in the following proportions in accordance with the indicated procedure.
Aloe vera gel ("VERAGEL 1501~') 4 liters sodium thiosulfate 1400 g.
carboxymethyl cellulose 100 9.
polyvinylpyrrolidone 400 9.
ethylenediaminetetraacetic acid 40 9.
tris(hydroxymethyl)aminomethane 17 9.
diazolidinyl urea 80 g.
deionized water enough to dilute to a total volume of 40 liters About 10 liters of the water were added into a small mixing chamber of a high speed shear mixer and, with the mixer on, approximately half of the carboyxmethyl cellulose was dissolved in the water.
When the mixture was smooth, the mixture was transferred into the mixing chamber of a medium speed mixer, such as ., a LIGHTN'N*Mixer. The remaining carboxymethyl cellulose should be mixed with the water as indicated above in the small mixer and then added to the mixiny chamber of the medium speed mixer.
The mixing chamber of the .small mixer was filled with about 10 liters of water and the PVP was mixed with the water while the mixer ran at high speed. ~hen this mixture was smooth, it was added, with mixing, to the carboxymethyi cellulose mixture in the medium speed mixer.
While the medium speed mixer was operating, th~
following ingredients were added to the mixing chamber:
sodium thiosulfate, EDTA, buffer, preservative and aloe * Trade Mark .,-, U~7Zl vera gel. While mixing continued, sufficient water was adàed to make a total volume of 40 liters. After mixing until all ingredients were well blended, the composition was put into several containers.
The composition of Example 4 is preferably added directl~ to aquarium fish water. Although lower dosages may be effective, the recommended dosage is one teas?oonful per ten gallons of aquarium water where the water contains free chlorine. ~hen the water contains organic chlorine compounds, such as chloramine, the recommended dosage is two teaspoons per ten gallons of aquarium water. At this dosage, the diluted concentration, after being added to the fish containing wa~er, is equivalent to about 0 013 volume percent for the composition and about 0.0013 volume percent for the aloe vera active ingredient.
Additional testing with the composition of Example 4 was conducted on tropical fish, both fresh warm water species and salt water species. Thousands of tropical fish were shipped to Philadelphia from Africa and Asia. Many had been confined to their shipping containers for over 36 hours and exhibited severe stress and damage. All tests clearly indicated that within several days, the composition containing the aloe vera extract promoted healing of damaged fish tissue and prevented infection in both fresh and salt water species of tropical fish, as well as cold water fish, such as goldfish.
The composition of Example ~, before addition to the ~ater containing tne fish, may contain about 5~ to about 30% of the aloe vera gel by volume. Presently, about 10~ by volume is preferred. Favorable results have been achieved ~ith compositions containing les~
than S~ aloe vera gel. It is believed that a composition containing as low as 1% aloe vera gel is U7Zl capable of eliciting a healing response in fish when used in the recommended dosage. If desired, other medicaments can be added to, mixed with, formed into tablets or capsules or otherwise combined with the aloe vera extract for treating various fish diseases and damaged fish tissue.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof and, accordingly, reference is made to the appended claims, rather than to the foregoing specification, as indicating the scope of the invention.
Claims (11)
1. An aqueous composition for treating damaged fish tissue comprising an aloe vera extract in an amount effective to promote healing of the damaged tissue and at least one slime-replacing compound in an amount effective to promote slime replacement of at least a portion of a missing fish slime coating.
2. An aqueous composition according to claim 1 wherein the slime-replacing compound comprises polyvinyl-pyrrolidone and carboxymethyl cellulose.
3. An aqueous composition according to claim 1 further comprising a dechlorinating agent.
4. An aqueous composition according to claim 3 wherein the dechlorinating agent is sodium thiosulfate.
5. An aqueous composition according to claim 2 further comprising a dechlorinating agent.
6. An aqueous composition according to claim 5 wherein the dechlorinating agent is sodium thiosulfate.
7. An aqueous composition according to claim 1 further comprising a preservative for the aloe vera extract.
8. An aqueous composition for treating damaged tissue of fish in which at least a portion of a slime coat-ing on the fish has been removed, comprising an extract of the Aloe Vera plant in an amount effective to promote heal-ing of the damaged tissue, at least one slime-replacing compound in an amount effective to promote slime replace-ment of at least a portion of the missing fish slime coat-ing, a dechlorinator in an amount to neutralize the chlorine in the water, a chelating agent in an amount effective to bind heavy metals in the water, a buffer in an amount effective to maintain the pH of the composition at least about 9.0, and a preservative in an amount effective to prevent the inactivity of the aloe vera gel.
9. A composition according to claim 8 wherein the slime-replacing compound is selected from the group consisting of carboxymethyl cellulose in an amount of up to about 7.5 g/l, polyvinylpyrrolidone in an amount of about 1.3 to about 25 g/l, and mixtures thereof, the dechlori-nator is sodium thiosulfate in an amount of about 12.5 to about 60 g/l, the chelating agent is ethylenediamine-tetraacetic acid in an amount of up to about 2 g/l, the buffer is tris(hydroxymethyl)aminomethane in an amount of about 0.3 to about 1 g/l, and the preservative is dia-zolidinyl urea in an amount of about 1.3 to about 4 g/l.
13. A composition according to claim 9 wherein the extract is in the form of an aloe vera gel.
11. A composition according to claim 10 com-prising about 10% by volume of the aloe vera gel, about 2.5 g/l carboxymethyl cellulose, about 10 g/l polyvinyl-pyrrolidone, about 35 g/l sodium thiosulfate, about 1 g/l ethylenediaminetetraacetic acid, about 0.4 g/l tris(hydroxymethyl)aminomethane, and about 2 g/l diazoli-dinyl urea.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/501,990 US4500510A (en) | 1982-09-29 | 1983-06-07 | Damaged fish tissue treating method and composition containing Aloe vera extract |
US501,990 | 1983-06-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1220721A true CA1220721A (en) | 1987-04-21 |
Family
ID=23995853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000447126A Expired CA1220721A (en) | 1983-06-07 | 1984-02-09 | Damaged fish tissue treating method and composition containing aloe vera extract |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA1220721A (en) |
-
1984
- 1984-02-09 CA CA000447126A patent/CA1220721A/en not_active Expired
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