WO2010108765A1 - Utilisation de compositions à base de peroxyde d'hydrogène dans des environnements aquatiques - Google Patents

Utilisation de compositions à base de peroxyde d'hydrogène dans des environnements aquatiques Download PDF

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Publication number
WO2010108765A1
WO2010108765A1 PCT/EP2010/052651 EP2010052651W WO2010108765A1 WO 2010108765 A1 WO2010108765 A1 WO 2010108765A1 EP 2010052651 W EP2010052651 W EP 2010052651W WO 2010108765 A1 WO2010108765 A1 WO 2010108765A1
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Prior art keywords
hydrogen peroxide
sorbitol
composition
aquatic
fish
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Application number
PCT/EP2010/052651
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English (en)
Inventor
Philip Adolf Van Geetruy
Original Assignee
Philip Adolf Van Geetruy
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Publication date
Application filed by Philip Adolf Van Geetruy filed Critical Philip Adolf Van Geetruy
Priority to EP10718090A priority Critical patent/EP2410860A1/fr
Publication of WO2010108765A1 publication Critical patent/WO2010108765A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/722—Oxidation by peroxides
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds

Definitions

  • the present invention relates to the use of compositions comprising hydrogen peroxide and sorbitol in aquatic environments, in particular to the use of these compositions in aquaria and aquaculture.
  • the invention further relates to a method for controlling an infection in an aqueous medium, comprising supplying hydrogen peroxide and sorbitol to an aqueous medium comprising an aquatic organism.
  • the invention also relates to compositions comprising hydrogen peroxide and sorbitol.
  • a chemical to an aquatic environment housing aquatic plants and/or animals is particularly tricky.
  • the chemical should be dosed in an amount sufficient, for instance for the treatment of algal fouling or for controlling microbial or bacterial infections.
  • an aquatic plant and/or animal is present which is particularly sensitive to the presence of chemicals. It is known that animals with mucous membranes such as fish or frogs, are particularly responsive to changes in their habitat. A shift in water pH, temperature, oxygen content may cause animal deaths.
  • H2O2 hydrogen peroxide
  • Degradation of hydrogen peroxide is influenced by factors such as temperature, light, water composition, presence of fish waste, etc. This makes it very difficult and tedious to determine what dose of hydrogen peroxide should be supplied. Overdosing may cause plant and animal deaths. In fish farms this may have a large economical impact.
  • compositions comprising hydrogen peroxide which are safe in use, effective, less toxic, easy to dose, stable and economically affordable.
  • the invention thereto provides uses of a composition comprising hydrogen peroxide and sorbitol in an aqueous medium comprising an aquatic plant and/or animal.
  • sorbitol provides a cell and organism protective function to organisms sensitive to hydrogen peroxide, such as an aquatic plant and/or animal.
  • the inventors have observed that the effect provided by the use of sorbitol in combination with hydrogen peroxide, is present even in very dilute conditions as encountered in ponds and aquaria.
  • Sorbitol is known as a stimulant to plant growth. Based on this knowledge it was believed that sorbitol would accelerate the degradation of hydrogen peroxide in the presence of aquatic plants and/or animals feeding on sorbitol. The inventors found to their surpirse that hydrogen peroxide in the presence of sorbitol remained effective, e.g. for use as desinfectant.
  • said aquatic plant is a sea weed.
  • said aquatic animal is an aquatic mammal, an aquatic bird, a fish, an aquatic reptile, an amphibian, and an aquatic invertebrate.
  • Use in an aquatic environment with fish was found to be particularly beneficial.
  • the invention can be used in the presence of aquatic animals and/or plants of varying sensitivity to hydrogen peroxide.
  • said composition has a weight ratio of hydrogen peroxide to sorbitol comprised between 1 :1 and 10:1. It was found a composition with this ratio was particularly suitable for highly diluted applications the presence of materials and circumstances that otherwise would accelerate hydrogen peroxide breakdown, such as plants, waste, light, temperature, pH.
  • the invention relates to the use of a composition comprising hydrogen peroxide and sorbitol for the control of an infection in an aquarium, wherein the composition is added directly to water in the aquarium without first removing aquatic animals or plants from the aquarium. It was found that a use as algae killer of a composition comprising hydrogen peroxide and sorbitol did not require that aquatic animals, such as fish, and/or plants, such as sea weed, should first be removed.
  • a use according to the invention of a composition comprising hydrogen peroxide and sorbitol is for controlling algae growth in aquaria.
  • a use according to the invention of a composition comprising hydrogen peroxide and sorbitol is for controlling parasites on fish.
  • a use according to the invention of a composition comprising hydrogen peroxide and sorbitol is for hatching Artemia cysts.
  • Use of sorbitol in combination with hydrogen peroxide was safer than a use of hydrogen peroxide alone.
  • the invention further relates to a method for controlling an infection in an aquatic environment, comprising the steps of: a) placing an aquatic animal or plant in a water b) supplying the water with hydrogen peroxide or a hydrogen peroxide- producing substance and sorbitol.
  • the ratio of hydrogen peroxide to sorbitol in the water is comprised between 1 :1 and 10:1. It was found that this range of hydrogen peroxide to water was best suited for controlling an infection in an aquatic environment.
  • said aquatic animal is a fish.
  • the method of the invention can be used in aquaculture. The method is very versatile and provides comparable or increased safety to the use of hydrogen peroxide for controlling infections, particularly on or in the presence of fish.
  • said infection is a microbial infection and/or a bacterial infection and/or an infection with algae. It was found that a combination of hydrogen peroxide and sorbitol can be used for veterinary purposes, for instance for the treatment of catfish, finnfish and salmonids, against a range of infections.
  • said water has an infection with algae. It was found that with a method of the invention aquatic environments such as aquaria can be freed from algae, without being substantially toxic to the carrier of the algae, e.g. plants or fish. The aquatic environment with fish is less sensitive to over dosing compared to a use of hydrogen peroxide alone.
  • compositions whereby the weight ratio of hydrogen peroxide to sorbitol is comprised between 5:1 and 7:1.
  • the compositions of the invention provide a protective function. They are effective and are economically affordable.
  • compositions as described above whereby the weight ratio of hydrogen peroxide and sorbitol is about 6.7.
  • the compositions of the invention were found to be safe for the environment. Hydrogen peroxide and sorbitol are not persistant in water.
  • the sorbitol in a composition as described above is D-sorbitol.
  • D-sorbitol was found to provide the highest purity to a composition destined for use in an aquatic environment.
  • the invention relates to the use of a composition as described above for use as in one of the applications as previously described. Detailed description of the invention
  • the present invention provides the use of a composition comprising hydrogen peroxide and sorbitol in an aqueous medium comprising an aquatic animal and/or aquatic plant.
  • aqueous medium refers to marine or freshwater.
  • marine refers to any environment relating to the oceans or sears wherein the water is saline.
  • freshwater refers to, but is not limited to, lakes, ponds rivers, streams, brooks or any other low salinity water.
  • the aqueous medium can be contained in a tank, aquarium, ponds or stream.
  • said aqueous medium is comprised in an aquarium.
  • said aquatic animal is an aquatic mammal, an aquatic bird, a fish, an aquatic reptile, an amphibian, and an aquatic invertebrate.
  • aquatic animal refers to any animal that spends all or some of its life in marine or fesh water.
  • An "aquatic animal” can be, but is not limited to, a mammal such as a seal, sea lion,, walrus, manatee, dugong, porpoise, dolphin, whale, otter, or beaver: a bird such as, but not limited to, a web-footed bird such as a duck, goose, swan, gull, cormorant, penguin, a wading bird such as a coot, moor hen, flamingo, stork, heron; an aquatic reptile such as, but not limited to, an alligator, cayman, crocodile, turtle, snake or lizard, an amphibian such as, but not limited to, frogs, toads, newts and salamanders, neotenous larva or larvae thereof; fish and aquatic invert
  • fish refers to any marine or freshwater fish species maintained in a tank, aquarium, pool, pond, aquaculture facility, fish farm, or any means other than the natural environment of the fish species.
  • fish also refers to species and individuals thereof captured, rescued or taken from their native habitat and which may require treatment for microbial infestations.
  • Fish species to which the methods of the present invention may be applied include, but are not limited to, ornamental fish, goldfish, koi, oscar, cichilids, tropical fish and fish for human or animal food such as, but not limited to, finfish, catfish, and salmonids such as trout, or salmon.
  • composition employed in the present invention comprises hydrogen peroxide and sorbitol.
  • the required amount of hydrogen peroxide can be introduced in a composition by adding hydrogen peroxide and/or at least one compound which produces hydrogen peroxide.
  • Hydrogen peroxide producing compounds can be compounds containing peroxide links such as peroxides, perborates, persulfates and peracetates.
  • a peroxide is selected from magnesium peroxide, calcium peroxide or a combination thereof. These compounds are available in the form of solid products, containing usually between 50% and 70% by weight of the active product.
  • magnesium and calcium peroxide have the further advantage of being more stable than for example perborates or persulfates (of potassium or sodium) so that, even when a composition is stored at relatively high temperatures during practically applied periods of time, the capacity of such included magnesium and calcium compounds to produce the required amount of hydrogen peroxide when add to an aqueous medium does not substantially decrease nor will there be a substantial, release of oxygen gas that otherwise would compromise the shelf live of a composition prior to use.
  • sorbitol refers to sorbitol, E420, D-sorbitol, also known as D-glucitol.
  • sorbitol is D-sorbitol.
  • the sorbitol used to make up the composition of the invention has a purity of at least 98%, at least 98.5%.
  • the make up of solutions comprising hydrogen peroxide and sorbitol with high purity sorbitol provides very stable solutions. They can be stored safely, without significant degradation of the hydrogen peroxide, for a prolonged period of time, typically for at least 100 days or even for between one and two years. Consequently the composition has a stable, practically non fluctuating amount of hydrogen peroxide.
  • the use of such a composition is more reliable for the dosing of a disinfectant to a fish tank, for instance.
  • the weight ratio of hydrogen peroxide to sorbitol is comprised between 5:1 and 7:1.
  • the weight ratio of hydrogen peroxide to sorbitol is about 6.7. This ratio provides stability to a composition comprising hydrogen peroxide in a concentration between 50 and 1 % by weight.
  • the sorbitol Upon further dilution of such a composition in a large volume of water, e.g. from an aquarium or a pond, typically presenting a further dilution factor of 1 -10 ml of water into 100 I water, the sorbitol provides a protective function to aquatic plants and/or animals. Aquatic plants and/or animals are less effected to the addition of hydrogen peroxide and sorbitol compared to an addition of hydrogen peroxide.
  • said composition further comprises at least one organic acid. It was found that the use of an acid provided neutralization of compounds such as ammonia or nitrogen-containing wastes in an aquatic environment.
  • the organic acid is preferably present in deficiency in the hydrogen peroxide solution.
  • the weight ratio of hydrogen peroxide to organic acid(s) in a composition of the invention is preferably between 2:1 and 50:1 , more preferably between 5:1 and 20:1.
  • the organic acid can for instance be citric acid, lactic acid, pentanoic acid, hexanoic acid or glycol acid.
  • An organic acid is particularly important if the use is in an environment above room temperature, for instance for use in warm water containing tropical fish.
  • the addition of an organic acid acts as a fungicide.
  • the weight ratio of sorbitol and the organic acid(s) lies between 10:1 and 1 :10, more preferably between 5:1 and 1 :5 or between 1 :2 and 2:1.
  • a composition comprising hydrogen peroxide and sorbitol can be in a form of a liquid, powder, granules or tablets. In a preferred embodiment the composition is in the form of a liquid. A composition in the form of a liquid can be easily metered in and dosed to an aquatic medium housing an aquatic animal. Such a composition is advantageous for applications requiring that a target amount of hydrogen peroxide be maintained over a fixed period of time.
  • a composition comprising hydrogen peroxide and sorbitol is used for controlling an infection in an aqueous environment. Aquatic animals and/or plants need not be removed prior to the addition of the composition. This is advantageous as such a use requires less work. For instance, in a use as algae killer, it may not be required to remove fish from an aquarium prior to addition of the composition to the aquarium for removal of algae from a carrier, such as a filter or plant.
  • a use according to the invention of a composition comprising hydrogen peroxide and sorbitol is for controlling algae growth in aquaria.
  • Use of hydrogen peroxide alone for the treatment of algae can damage water plants and fish particularly sensitive to hydrogen peroxide, such as walleye Sander vitreus, northern pike Esox lucius or paddlefish Polyodon spathula.
  • a use according to the invention was found to be safe.
  • hydrogen peroxide provides aeration to an aquatic environment. The areation, or release of oxygen, was found not to affect sorbitol.
  • composition comprising hydrogen peroxide and sorbitol is used as an aquaculture drug.
  • a composition comprising hydrogen peroxide and sorbitol is used in the treatment against a disease-causing organism such as, but not limited to, a parasite, bacteria, fungi.
  • a use according to the invention of a composition comprising hydrogen peroxide and sorbitol is for controlling parasites.
  • the use can be directed to different life-stages of an aquatic animal, such as to eggs, cysts or adult.
  • a composition of the invention is used for the treatment of a) freshwater-reared finfish eggs infected with saprolegniasis, a common water mold; or b) freshwater-reared salmonids against bacterial gill disease (Flavobacte ⁇ um branchiophilum), or c) freshwater-reared coolwater finfish and channel catfish against external columnaris disease (Flavobacterium columnare), or d) salmon louse (Lepeophtheirus Salmonis)
  • a use according to the invention of a composition comprising hydrogen peroxide and sorbitol is for hatching Artemia cysts.
  • Use of hydrogen peroxide for increasing the hatching percentage of Artemia cysts is well-known.
  • cysts of Artemia are prehydrated in tap water for a period of 30 to 80 minutes and are subsequently treated in a hydrogen peroxide solution diluted with deionized water to concentrations of 1 , 5, 10, 20 or 27 wt%. After treatment times of 1 , 5, 10, 20 or 30 minutes, the cysts are collected on a sieve, rinsed thoroughly with tap water in order to remove traces of H2O2, and incubated in seawater under hatching conditions.
  • a re- incubation of cysts in seawater after removal of the hydrogen peroxide is essential as the applied level of hydrogen peroxide is generally recognised as lethal for animal cells.
  • the inventors have observed that the replacement of a conventional composition comprising hydrogen peroxide with a composition of the invention provides can increase the hatching percentage of Artemia cysts.
  • Use of sorbitol in combination with hydrogen peroxide was safer than a use of hydrogen peroxide alone.
  • a composition with a weight ratio of hydrogen peroxide to sorbitol of between 1 :1 and 10:1 is used.
  • Use of such a composition is advantageous in applications were reliable dosing of a chemical is required, particularly in applications were incorrect dosing can have detrimental effects.
  • a composition for use in the invention is commercially available, e.g. under the trademark Bioprox, from Verfimport N.V., Belgium. This composition comprising around 50% active ingredients, that is hydrogen peroxide and sorbitol.
  • a composition comprising in addition to hydrogen peroxide and sorbitol also at least one organic acid.
  • the use of this composition provides further fungicidal effect.
  • the invention provides a method for controlling an infection in an aquatic environment. It consists of placing an aquatic animal in water and supplying the water with hydrogen peroxide or a hydrogen peroxide-producing substance and sorbitol.
  • the method comprises the immersion (bath treatment) of an aquatic organism, e.g. from an aquaculture, in a composition comprising hydrogen peroxide and sorbitol.
  • the method of the invention can also be directed to the treatment of a plant in an aquatic environment comprising an aquatic animal. It was found not to be necessary to remove the aquatic animals for the treatment of an aquatic plant. For instance, in the treatment of an aquarium against infestations by algae, it was not required to remove the fish prior to the addition of a composition comprising hydrogen peroxide and sorbitol.
  • the method is applicable to a large range of aquatic animals such as, but not limited to an aquatic mammal, an aquatic bird, a fish, an aquatic reptile, an amphibian, and an aquatic invertebrate.
  • the method is applied on fish, e.g. in aquaculture. Large scale application of an improved method can result in economical benefits.
  • the method is for the control of an infection in an aquatic environment.
  • the infection can be caused by a microbe, bacterium or by algae.
  • Example 1 preparation of a composition
  • Example 2 use as an algicide
  • a composition of around 60 ml of the 3% wt solution of example 1 is added to a tank filled with 250 I water infected with algae. The composition is added over a period of 5 minutes. A clump of algae is killed. Plants are not effected.
  • Control of salmon lice with hydrogen peroxide and sorbitol of different concentrations is carried out in a fish breeding facility according to the following description.
  • the water temperature is between 6° and 14 0 C.
  • Tests 1-9 are performed in small string bags

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Dentistry (AREA)
  • Wood Science & Technology (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Agronomy & Crop Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Farming Of Fish And Shellfish (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

La présente invention concerne une composition, dans laquelle le rapport en poids du peroxyde d'hydrogène sur le sorbitol est compris entre 5 : 1 et 7 : 1. L'invention concerne en outre l'utilisation d'une composition comprenant du peroxyde d'hydrogène et du sorbitol dans un milieu aqueux comprenant un animal aquatique et/ou une plante aquatique.
PCT/EP2010/052651 2009-03-27 2010-03-03 Utilisation de compositions à base de peroxyde d'hydrogène dans des environnements aquatiques WO2010108765A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10718090A EP2410860A1 (fr) 2009-03-27 2010-03-03 Utilisation de compositions à base de peroxyde d'hydrogène dans des environnements aquatiques

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EPPCT/EP2009/053643 2009-03-27
EP2009053643 2009-03-27

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WO2010108765A1 true WO2010108765A1 (fr) 2010-09-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104710076A (zh) * 2015-02-28 2015-06-17 梧州市景泰养鳖专业合作社 中华鳖成鳖鳖池水质的调控方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005075350A1 (fr) * 2004-02-04 2005-08-18 Philip Adolf Van Geetruy Eau oxygenee

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005075350A1 (fr) * 2004-02-04 2005-08-18 Philip Adolf Van Geetruy Eau oxygenee

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104710076A (zh) * 2015-02-28 2015-06-17 梧州市景泰养鳖专业合作社 中华鳖成鳖鳖池水质的调控方法

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