WO2023237791A1 - Complejo de inclusión de triptófano y arginina, composición fertilizante, bioestimulante y antimicrobiana que lo comprende, su método de obtención y su uso - Google Patents
Complejo de inclusión de triptófano y arginina, composición fertilizante, bioestimulante y antimicrobiana que lo comprende, su método de obtención y su uso Download PDFInfo
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- WO2023237791A1 WO2023237791A1 PCT/ES2023/070256 ES2023070256W WO2023237791A1 WO 2023237791 A1 WO2023237791 A1 WO 2023237791A1 ES 2023070256 W ES2023070256 W ES 2023070256W WO 2023237791 A1 WO2023237791 A1 WO 2023237791A1
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- 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
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/44—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a nitrogen atom attached to the same carbon skeleton by a single or double bond, this nitrogen atom not being a member of a derivative or of a thio analogue of a carboxylic group, e.g. amino-carboxylic acids
- A01N37/50—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a nitrogen atom attached to the same carbon skeleton by a single or double bond, this nitrogen atom not being a member of a derivative or of a thio analogue of a carboxylic group, e.g. amino-carboxylic acids the nitrogen atom being doubly bound to the carbon skeleton
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- 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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/36—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom five-membered rings
- A01N43/38—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom five-membered rings condensed with carbocyclic rings
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- 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
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/44—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a nitrogen atom attached to the same carbon skeleton by a single or double bond, this nitrogen atom not being a member of a derivative or of a thio analogue of a carboxylic group, e.g. amino-carboxylic acids
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- 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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/40—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having a double or triple bond to nitrogen, e.g. cyanates, cyanamides
- A01N47/42—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having a double or triple bond to nitrogen, e.g. cyanates, cyanamides containing —N=CX2 groups, e.g. isothiourea
- A01N47/44—Guanidine; Derivatives thereof
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- 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
- A01N59/16—Heavy metals; Compounds thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
- A01P1/00—Disinfectants; Antimicrobial compounds or mixtures thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
- A01P21/00—Plant growth regulators
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
- C05D9/02—Other inorganic fertilisers containing trace elements
Definitions
- the present invention falls within the general field of Chemistry, more specifically Organic Chemistry, and has its application in the agricultural, forestry and/or gardening sectors. More particularly, it falls within the sector of compositions that act as inducers of auxinic defense in plants and/or to control fungal and/or bacterial pests in agriculture, forestry and/or gardening.
- plants are subject to continuous biotic stress caused by different attacks (bacteria, fungi, viruses, oomycetes and insects), which compromise the survival of the plant and its offspring.
- Plants have evolved over millions of years, so they have developed a variety of resistance mechanisms that are expressed constitutively or can be induced after exposure. pathogen attack.
- Your innate immune system is based on the specific detection of proteins called pathogen-associated molecular patterns (PMAPs).
- PMAPs pathogen-associated molecular patterns
- Successful pathogens secrete proteins that deregulate immunity and to counteract this, plants activate immunity triggered by effector proteins. This immunity is regulated by phytohormones, which are small molecules that work in a complex network that regulates the conditions of growth, development, reproduction and the response of plants to environmental signals.
- SA salicylic acid
- ET ethylene
- JA jasmonic acid
- auxin and abscisic acid are crucial players in plant-pathogen interactions.
- Phytohormonal pathways are linked to each other in a huge and complex network; for example, ET, ABA, auxin, gibberellin, and cytokinin pathways are considered hormonal modulators of the backbone of AS-AJ signaling.
- Auxins including indole-3-acetic acid (IAA), regulate many aspects of development, such as apical dominance (the tendency to show greater growth at the tip or apex of each main branch and at the tip of the main stem), the gravitropism of the roots (basipetal growth of the roots, which must sink into the soil for their correct functioning and growth of the stems towards the aerial medium), the formation of root hairs and lateral roots and the development of leaves , flowers and the vasculature in general.
- Direct and indirect effects have also been described in the regulation of resistance responses to pathogens. Indirect effects may be caused by auxin regulation of development-associated processes such as cell wall architecture, root morphology, and stomatal patterning.
- Indole-3-butyric acid is also a plant growth regulator of the auxin family and is part of many commercial products used for facilitate the rooting of cuttings of horticultural and fruit species.
- IBA Indole-3-butyric acid
- the effect of three different auxins indolebutyric acid, indoleacetic acid and 1-naphthaleneacetic acid
- indolebutyric acid produced a higher root yield compared to the other auxins (Rout, GR, “Effect of auxins on adventitious root development from single node cuttings of Camellia sinensis (L.) Kuntze and associated biochemical changes", Plant Growth Regulation 48 (2): 111-117, 2006).
- auxin biosynthetic pathways starts from the biosynthesis of antimicrobials derived from tryptophan, such as indole-glucosinolates and camalexin.
- tryptophan derivatives lower levels of auxin and indole-glucosinolates
- auxins are shown to play a central role in balancing plant resistance responses.
- Tryptophan is a precursor of two important classes of plant growth regulators: (a) the classical phytohormone auxin, through thptamine-dependent and -independent pathways, and (b) the indole-amines melatonin and serotonin.
- tryptophan during the rooting and growth period of the plants has bioavailability problems, since it is poorly soluble in water, of the order of 0.23 g/l at 0°C, 2.2 g/l at 10 °C, 11.4 g/l at 25°C, 17.1 g/l at 50°C and 27.95 g/l at 75°C. Therefore, to formulate a concentrated product that can later be diluted to be applied in agriculture, it is mandatory to increase its solubility at least 20 times.
- L-arginine is an important and unique amino acid in plants.
- arginine In the proteins present in the seeds of different plant species, between 40 and 50% of the total nitrogen reserve is represented by arginine. This amino acid also accounts for 50% of the nitrogen in the developing embryos of soybeans and pea.
- Arginine is usually one of the main storage forms of nitrogen also in the underground storage organs and roots of trees and other plants. Therefore, arginine metabolism plays a key role in nitrogen distribution and recycling in plants.
- arginine not only serves as an important nitrogen reserve, but also acts as a precursor for the biosynthesis of polyamines, nitric oxide (NO), etc., and is involved in almost all physiological and biochemical processes, including growth. , the development and adaptation of plants to biotic and abiotic stress.
- Arginine decarboxylase, arginase and nitric oxide synthase are the key enzymes in the catabolism of L-arginine, forming polyamines, while nitric oxide is formed through the Nitric Oxide Synthase (NOS) pathway. ). The activity of these three enzymes controls the direction of arginine metabolism.
- Polyamines (putrescine, spermidine and spermine) are essential for plant development and stress response.
- Zinc one of the essential micronutrients and an important component of various enzymes and proteins, is only needed by plants in small quantities. However, it is crucial for its development, as it plays an important role in a wide range of processes.
- the normal range of zinc in plant tissue is 15 to 60 ppm and in the culture medium between 0.10 and 2.0 ppm. Zinc deficiency or toxicity does not occur frequently. However, both have a negative impact on crop growth and quality and must be addressed before crop damage becomes irreversible.
- Zinc activates the enzymes responsible for the synthesis of certain proteins, participates in the formation of chlorophyll and some carbohydrates, in the conversion of starches into sugars and its presence in plant tissues helps the plant to withstand low temperatures. Zinc is also essential in the formation of auxin.
- Gram-negative phytopathogens constitute a major threat to food crops and are responsible for a plethora of plant diseases, with devastating losses in crops such as tomatoes, peppers, potatoes, olives or rice.
- the means by which phytopathogenic bacteria cause disease are as varied as the types of symptoms they cause.
- These phytopathogenic bacteria produce toxins or inject special proteins that cause the death of host cells, or produce enzymes that break down key structural components of plant cells and their walls.
- phytopathogenic bacteria belong to the following genera: Erwinia, Pectobacterium, Pantoea, Agrobacterium, Pseudomonas, Ralstonia, Burkholderia, Acidovorax, Xanthomonas, Clavibacter, Streptomyces, Xylella, Spiroplasma and Phytoplasma. Plant pathogenic bacteria cause many different types of symptoms including galls and overgrowths, wilting, leaf spots, spots and blights, soft rots, as well as scabs or cankers. Unlike viruses, which are inside the host's cells, sheltered bacteria grow in the spaces between cells and do not invade them.
- fungi that attack crops are, among others, the following: Fusarium, Gibe relia, Rhizoctonia, Verticillium, Phytophthora, Colletotrichum, Alternaria and Botrytis.
- a first object of the invention is a method to obtain an inclusion complex of tryptophan and arginine in aqueous solution that comprises the following steps: a) mix between 3% and 6% w/v of tryptophan in water and stir until obtaining a dispersed mixture; b) add between 6 and 10% w/v of arginine with respect to the total dispersed mixture obtained in the previous stage; c) heat to a temperature of between 50 and 70°C, stir preferably at a stirring speed of between 300 and 1000 rpm and apply ultrasound with a frequency preferably between 15 and 25 kHz, and more preferably between 20 and 25 HZ, until complete dissolution of tryptophan and formation of the inclusion complex; and d) let it cool until it reaches a temperature below 25°C.
- a second object of the invention is an inclusion complex of tryptophan and arginine in aqueous solution, which comprises, by weight with respect to the total volume: a) between 3% and 6% of tryptophan, b) between 6% and 10% arginine, and c) between 84% and 92% water, and where said inclusion complex does not contain any chemical surfactant or emulsifier.
- inclusion complex object of the invention compared to other products described in the state of the art is the surprising improvement it presents in terms of the solubility of its active ingredients, tryptophan and arginine, in water. .
- the inclusion complex claimed allows the percentage of solubilization of tryptophan in water to be multiplied by 20.
- a third object of the invention is a fertilizer, biostimulant and antimicrobial composition that comprises by weight with respect to the total volume: a) between 9% and 16% of the inclusion complex in aqueous solution object of the invention, as defined. above, and b) between 4% and 8% of at least one chelating compound selected from a zinc chelating compound and an iron chelating compound, as well as any of their combinations.
- the fertilizer, biostimulant and antimicrobial composition may comprise, by weight with respect to the total volume: a) between 9% and 16% of the inclusion complex in aqueous solution object of the invention, according to been defined above, and b) between 0.5% and 5% of a dry extract of red algae.
- the fertilizer, biostimulant and antimicrobial composition may comprise, by weight with respect to the total volume: a) between 9% and 16% of the inclusion complex in aqueous solution object of the invention, according to has been defined above, b) between 4% and 8% of at least one chelating compound selected from a zinc chelating compound and an iron chelating compound, as well as any combination thereof; and c) between 0.5% and 5% of a dry extract of red algae.
- fertilizer is understood to be a composition that comprises the nutrients essential for the growth and development of a plant.
- the composition object of the invention has a fertilizer function due to the presence of amino acids in the composition itself.
- a biostimulant is understood to be a substance that alters plant processes, improving their performance.
- the composition object of the invention has the ability to stimulate the defense system in which plant auxins intervene.
- antimicrobial is understood as a substance that intervenes in the protection of a plant against diseases caused by fungi and/or bacteria.
- a fourth object of the invention is a method for obtaining a fertilizer, biostimulant and antimicrobial composition as previously described, characterized in that it comprises mixing by sonication applying ultrasound with a frequency preferably between 15 and 25 kHz, more preferably between 20 and 25 kHz. HZ, the following components: a) between 9% and 16% by weight of the inclusion complex in aqueous solution as previously described, and b) between 4% and 8% by weight of at least chelating compound selected from a zinc chelating compound and an iron chelating compound, as well as any of their combinations, where the mixing is preferably carried out at a temperature between 50° to 70°C, for a time of between 5 and 15 minutes, until obtaining a homogeneous composition.
- said method of obtaining a fertilizer composition, biostimulant and antimicrobial as previously described it is characterized in that it comprises mixing by sonication applying ultrasound with a frequency preferably between 15 and 25 kHz, more preferably between 20 and 25 HZ, the following components: a) between 9% and 16% of the inclusion complex in aqueous solution object of the invention, as defined above, and b) between 0.5% and 5% by weight of a dry extract of red algae, where the mixing is preferably carried out at a temperature between 50° to 70°C, for a time of between 5 and 15 minutes, until obtaining a homogeneous composition.
- the method to obtain a fertilizer, biostimulant and antimicrobial composition object of the invention is characterized in that it comprises mixing by sonication using ultrasound, the following components: a) between 9% and 16% of the inclusion complex in aqueous solution object of the invention, as defined above, b) between 4% and 8% by weight of at least chelating compound selected from a zinc chelating compound and an iron chelating compound, as well as any of their combinations, and c) between 0.5% and 5% by weight of a dry extract of red algae, where the mixture is carried out at a temperature between 50° to 70°C, for a time of between 5 and 15 minutes, until obtaining a composition homogeneous.
- a fifth object of the invention is the use of the previously described fertilizer, biostimulant and antimicrobial composition to induce auxinic defense in vegetables of agricultural, forestry and/or gardening crops, which comprises applying a maximum amount of 23% by weight to said crops. of the composition in water.
- one of the main advantages of the invention is that it is a composition based on natural, safe and biodegradable substances, while at the same time it very significantly improves the bioavailability of tryptophan, eliminating the presence of other chemical products. essential for its dissolution like those currently used in the agricultural sector.
- the claimed composition may be used as a fertilizer. In another alternative particular embodiment, the claimed composition may be used as a biostimulant.
- the claimed composition may be used as an antimicrobial, having the ability to prevent, treat and/or eliminate microorganism pests that may be fungi and/or bacteria of plants.
- the pathogenic fungi may consist of a genus of fungi selected from the group consisting of Fusarium, Giberella, Rhizoctonia, Verticillium, Phytophthora, Colletotrichum, Alternaria, Botrytis, as well as any combination thereof.
- pathogenic bacteria can consist of gram-negative bacteria.
- the pathogenic bacteria may consist of a genus of bacteria selected from the group consisting of Erwinia, Pectobacterium, Pantoea, Agrobacterium, Pseudomonas, Ralstonia, Burkholderia, Acidovorax, Xanthomonas, Clavibacter, Streptomyces, Xylella, Spiroplasma, Phytoplasma, as well as any of its combinations.
- the claimed composition can be applied diluted in water by spraying on the crop, at the foliar level or at the root level through irrigation. Preferably, its application will be carried out at the foliar level, as greater absorption by the plant is achieved.
- Said dilution in water may comprise an amount of fertilizer, biostimulant and antimicrobial composition of between 14 to 23%, more preferably between 15% and 20% and even more preferably between 18% and 20% by weight with respect to the total .
- a sixth object of the invention is the aqueous dilution that comprises the claimed fertilizer, biostimulant and antimicrobial composition, preferably, in a percentage by weight between 14% and 23%, more preferably between 15% and 20% and even more preferably between 18% and 20% by weight with respect to the total.
- Figure 1 a Image of the structure of the resonant forms of the guanidinium group; and b) spatial average structure of guanidinium.
- Figure 10 NMR spectra of: (a) L-T ⁇ ptophan; (b) L-Arginine and (c) T ⁇ ptophan-Arginine complex.
- the present invention offers a new process to increase the solubilization of typtophan in water, which has not been described so far in the technical literature.
- the new claimed inclusion complex manages to increase the solubility of t ⁇ ptophan in water up to 20 times and is especially indicated for use in the preparation of natural and bioavailable fertilizer, biostimulant and antimicrobial compositions.
- the developed method allows obtaining a tryptophan/arginine complex through a hot mixing process with the application of ultrasound.
- the inclusion complex obtained through this process can be marketed in concentrated form, or it can be diluted in water to a percentage that allows its use in agriculture, forestry and/or gardening.
- the formation of the complex occurs as a consequence of the loss of the proton by both carboxylic groups of the amino acids, which are relocated, in the case of tryptophan, to the free amino group of the aliphatic part. of the molecule (not the indolic group) and, in the case of arginine, to the resonant structure of the guanidinium group, which remains positively charged.
- the claimed inclusion complex is characterized in that it comprises between 3% and 6% by weight of tryptophan, although in preferred embodiments of the invention, the amount of tryptophan will be 4% or 5% by weight. % by weight with respect to the total volume.
- the amount of arginine present in the inclusion complex is between 6% and 10% by weight, although in preferred embodiments it can be present at 7%, 8% or 9% by weight. with respect to the total volume.
- the effectiveness of the product object of the present invention makes it a truly advantageous product compared to fertilizers, biostimulants and/or antimicrobial agents known on the market, which barely dissolve 0.5% of tryptophan. in water.
- the claimed inclusion complex is made up of effective natural components, thus avoiding the use of chemicals responsible for toxic effects on the environment.
- the solubility of tryptophan has been surprisingly increased.
- the solubility of tryptophan increases with the concentration of arginine, present between 6% and 10% by weight, thus facilitating the formation of the inclusion complex between both amino acids through weak or short-range molecular interactions between the molecules of both compounds in water.
- these interactions consist of hydrogen bonding between the two amino acids described, that is, the water-soluble one and the insoluble one.
- Hydrogen bonding is an electrostatic force that provides great stability, but it is weaker than covalent bonding or ionic bonding.
- the action of ultrasound applied during the method of obtaining the inclusion complex is essential for the appearance of these bonds.
- One of the main advantages of the claimed composition is that it allows solving the problem that the agricultural sector has to face in relation to current microbial pests, particularly in the case of bacteria, in which case the use of antibiotics is not permitted. common, for human use, to prevent the appearance of resistant bacteria.
- the fertilizer, biostimulant and antimicrobial composition comprises the inclusion complex formed by the two amino acids described, giving rise to a composition in aqueous solution with a pH between 8 and 11 and with cationic character, derived from the presence of the guanidinium group of arginine, as shown in Figure 1, with a great tendency to capture the proton of the carboxylic group of tryptophan and become positively charged, which gives the cationic character to the complex formed.
- the pH of the aqueous solution will be between 9 and 10 and more preferably will be between 9.3 and 9.5.
- the claimed fertilizer, biostimulant and antimicrobial composition may comprise between 4 and 8% by weight of at least one chelating compound preferably selected from a zinc or iron chelating compound for application in agriculture.
- the zinc chelating compound for agricultural application can be selected from the group consisting of zinc sulfate, zinc gluconate, zinc heptagluconate, zinc acetate, zinc ethylenediaminetetraacetate (EDTA) Zn, zinc hydroxyethylenediamine triacetate (HEEDTA )Zn, zinc diethylenetriaminepentaacetate (DTPA)Zn, zinc ethylene-diamine di-ortho-hydroxy-phenyl-acetate (op-EDDHA)Zn, zinc ethylenediaminedisuccinate (EDDS)Zn, zinc ethylenediamine-N and N'-disuccinate (EDDS)Zn, as well as any of its combinations.
- the amount of the agriculturally applicable zinc chelator in the composition will be 4.5%, 5%, 5.5%, 6%, 6.5%, 7% or 7.5% by weight with respect to the total volume. .
- a great advantage of the claimed inclusion complex is that it does not require the incorporation of emulsifiers or surfactants to improve its solubility and bioavailability in aqueous solution, unlike other alternative products of the state of the art, which are associated with a significant risk of toxicity. in crops, as well as in soils intended for agriculture, forestry and gardening in general.
- the fertilizer, biostimulant and antimicrobial composition may additionally comprise at least one additive, preferably a preservative, and more preferably potassium metabisulfite.
- said additive will be present in an amount between 0.1% and 0.5% by weight with respect to the total of the fertilizer, biostimulant and antimicrobial composition.
- the amount of additive preferably, preservative and more preferably potassium metabisulfite
- Said additive can be added at a last stage of the process, after the formation of the inclusion complex.
- the composition may be diluted in water for its application in agriculture, forestry and/or gardening, and may be included in the dilution in an amount of 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8% or 9% by weight with respect to the total volume of the final aqueous solution.
- the aqueous dilution may comprise between 140 and 230 grams of the composition with respect to one liter of water.
- the fertilizing, biostimulant and antimicrobial inclusion complex allows successive dilutions of tryptophan, that is, it allows dilutions to be carried out with very high amounts of water, and has the surprising effect that the amino acids of the inclusion complex are They remain soluble, without precipitating in the water or without forming an isolated powder on the free surface of the liquid.
- the inclusion complex will maintain its solubility in water even in amounts of 1 liter of inclusion complex diluted in water in an amount of between 50 liters and 200 liters. Surprisingly, it has been verified how the claimed complex does not end up precipitating in the mixture as the amount of water in the solution increases. This is due to the phenomenon that has been described previously, referring to the bioavailability of the inclusion complex to be applied to crops and to have a greater fertilizing, biostimulant and antimicrobial effect, as is the case of the present invention.
- composition that comprises the claimed inclusion complex is an optimal fertilizer, biostimulant and antimicrobial product for its application in agriculture, forestry and gardening, as demonstrated in the results. experiments carried out with these products, in which a decrease in pests of at least 90% with respect to those initially existing has been observed.
- the internal energy of the inclusion complex object of the invention is -952.8 kcal/mol, which is much lower than the energy content of the amino acids separately, demonstrating the formation of the complex and its stability.
- the use of the claimed composition involves its application of the aqueous fertilizer, biostimulant and antimicrobial composition in a dilution in water.
- 1 liter of the composition can be used per 50, 100 or even 200 liters of water, although logically, since the effect is not altered by the volume of solution, it can be applied in any of the concentrations that have been previously described.
- MM2 is not useful for modeling transition states of chemical processes with a large spectrum of experimental steps.
- the inclusion complex was synthesized as described in example 1. Subsequently, its antimicrobial capacity was analyzed in Candida albicans, Campylobacter jejuni, Escherichia coli , Pseudomonas aeruginosa, Staphiloccocus aureus and Salmonella enterica, determining the degree of growth and inhibition in different consecutive dilutions, at 1/2, 1/4, and so on up to 1/32. These values are explained in the following Table 1, where the first value corresponds to the percentage of growth and the second value to the percentage of inhibition, being complementary: Table 1 4. Determination of NMR spectra
- Figure 10(a) shows the NMR spectrum of L-Tryptophan
- Figure 10(b) shows the NMR spectrum of L-Arginine
- Figure 10(c) shows the NMR spectrum. of the Tryptophan/L-Arginine complex.
- an important difference is observed in the geometry and height of the peaks with respect to the spectra of the amino acids separately, which indicates the presence of the inclusion complex, confirming the results of the energy studies carried out (example 2).
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Abstract
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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EP23819302.3A EP4537663A1 (en) | 2022-06-06 | 2023-04-24 | Inclusion complex comprising tryptophan and arginine; fertilising, biostimulant and antimicrobial composition comprising same; production method thereof; and use thereof |
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ES202230491A ES2957421B2 (es) | 2022-06-06 | 2022-06-06 | Complejo de inclusion de triptofano y arginina, composicion fertilizante, bioestimulante y antimicrobiana que lo comprende, su metodo de obtencion y su uso |
ESP202230491 | 2022-06-06 |
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WO2023237791A1 true WO2023237791A1 (es) | 2023-12-14 |
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PCT/ES2023/070256 WO2023237791A1 (es) | 2022-06-06 | 2023-04-24 | Complejo de inclusión de triptófano y arginina, composición fertilizante, bioestimulante y antimicrobiana que lo comprende, su método de obtención y su uso |
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EP (1) | EP4537663A1 (es) |
CL (1) | CL2023003901A1 (es) |
ES (1) | ES2957421B2 (es) |
WO (1) | WO2023237791A1 (es) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107827559A (zh) * | 2017-11-17 | 2018-03-23 | 沿河新岩生态农牧业有限公司 | 一种补血菜专用肥及其制备方法 |
WO2018164487A1 (ko) * | 2017-03-08 | 2018-09-13 | 씨제이제일제당 (주) | L-메티오닌을 포함하는 비료 조성물 |
US20180343860A1 (en) * | 2015-08-25 | 2018-12-06 | Shoichi Shirotake | Antimicrobial agent against germs which has excellent plant disease control effect |
EP3987931A1 (en) * | 2019-12-17 | 2022-04-27 | Universidad de Valladolid | Aqueous solution comprising an inclusion complex, method for obtaining same and use thereof for application in crops to improve their yield |
-
2022
- 2022-06-06 ES ES202230491A patent/ES2957421B2/es active Active
-
2023
- 2023-04-24 WO PCT/ES2023/070256 patent/WO2023237791A1/es active Application Filing
- 2023-04-24 EP EP23819302.3A patent/EP4537663A1/en active Pending
- 2023-12-26 CL CL2023003901A patent/CL2023003901A1/es unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180343860A1 (en) * | 2015-08-25 | 2018-12-06 | Shoichi Shirotake | Antimicrobial agent against germs which has excellent plant disease control effect |
WO2018164487A1 (ko) * | 2017-03-08 | 2018-09-13 | 씨제이제일제당 (주) | L-메티오닌을 포함하는 비료 조성물 |
CN107827559A (zh) * | 2017-11-17 | 2018-03-23 | 沿河新岩生态农牧业有限公司 | 一种补血菜专用肥及其制备方法 |
EP3987931A1 (en) * | 2019-12-17 | 2022-04-27 | Universidad de Valladolid | Aqueous solution comprising an inclusion complex, method for obtaining same and use thereof for application in crops to improve their yield |
Non-Patent Citations (1)
Title |
---|
ROUT, G.R.: "Effect of auxins on adventitious root development from single node cuttings of Camellia sinensis (L.) Kuntze and associated biochemical changes", PLANT GROWTH REGULATION, vol. 48, no. 2, 2006, pages 111 - 117, XP019243677, DOI: 10.1007/s10725-005-5665-1 |
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Publication number | Publication date |
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CL2023003901A1 (es) | 2024-06-28 |
ES2957421A1 (es) | 2024-01-18 |
ES2957421B2 (es) | 2024-06-07 |
EP4537663A1 (en) | 2025-04-16 |
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