JPH11171674A - Modification treatment of dung, dung thus treated and fermented fertilizer utilizing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a safe fermented fertilizer through the following process: Aspergillus oryzae spores are mixed in livestock dung to effect fermentation and decompose the organic matter in the dung followed by promotive proliferation of useful microorganisms with the resulting dung as nutrient to accomplish modification of the original dung along with preventing environmental pollution and offensive odor emission. SOLUTION: The subject modification treatment of dung is carried out to obtain a safe fermented fertilizer through the following process: first, Aspergillus oryzae spores are orally administered to livestock in advance: the spores are thus thoroughly mixed with foodstuffs in the livestock's digestive organs, being excreted in a state thoroughly mixed with dung; thereafter the spores germinate in the dung, being proliferated so effect fermentation; various enzymes produced from the Aspergillus oryzae then decompose the organic matter in the dung to increase vitamin B group, thus accumulating nutrients for useful microorganisms working thereafter along with digesting the amines from proteins as ammonia source to form organic acids and suppress the pH increase in the dung, thus preventing offensive odor emission; production of the above nutrients results in symbiosis of fungi, Lactobacillus bifidus and the like and proliferation of other useful microorganisms, thus modifying the original dung without environmental pollution and offensive odor emission.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for modifying feces, a fermented fertilizer using the modified feces and feces, and more particularly to a method for modifying feces using koji mold and useful microorganisms. The present invention relates to a modified feces modification method, a modified feces, and a fermentation fertilizer using the feces.

[0002] The feces referred to in the present invention refers to the feces excreted by animals that have become solid due to reduced water content.

[0003]

2. Description of the Related Art In general,
In breeding various kinds of livestock such as pig farming and poultry farming and breeding pets, it is difficult to dispose of manure excreted from these animals. In particular, the odor emitted from manure is a problem, and it is obliged for the pig raising industry and the like to keep the odor below a certain level by the Odor Control Law.

As described above, livestock manure is regarded as a source of environmental pollution, and there is a great deal of interest in how to treat, effectively utilize, and preserve the livestock environment.

[0005] Solid manure (hereinafter referred to as feces) has a water content of about 80%, and conventional treatment methods for these include drying, composting, and incineration.

[0006] Among them, drying and incineration have a problem that the cost is high because a thermal dryer is used, and composting has a problem that generation of a bad smell cannot be prevented.

Therefore, Japanese Patent Application Laid-Open No. Hei 7-241169 proposes a method of suppressing the stench of manure by orally administering spores of Streptomyces sp. Medium- and / or high-temperature actinomycetes to animals as deodorizing microorganisms. I have.

However, the actinomycetes used in this method are microorganisms that may produce antibiotics as secondary metabolites, and if spores germinate and proliferate to produce antibiotics, they may become infected. There is a problem that resistant bacteria of pathogenic bacteria related to the disease may appear. More specifically, the food industry use of actinomycetes is historically new, and the method of use is only enzyme use. However, it is difficult to say that it is an act that is safe enough.

The present invention has been made in view of the above points, and it is possible to modify feces using koji molds and useful microorganisms that are sufficiently safe for livestock and humans who eat them, and to effectively utilize feces. It is an object of the present invention to provide a method for treating feces, which can be carried out easily and at a low cost, and a fertilized fertilizer using the feces subjected to the reforming treatment and the feces.

[0010]

Means for Solving the Problems The present inventor has conducted intensive studies in order to achieve the above-mentioned object, and has found that the use of koji mold and useful microorganisms makes it possible to modify feces sufficiently safely for livestock and humans who eat them. The present invention has been found and completed.

[0011] To further explain, in composting feces,
Although the amount of water is reduced while aeration is performed, in the process where neutral components and acidic components such as lower fatty acids are generated as decomposed products, not so much odor is emitted, but decomposition of nitrogen-containing compounds proceeds and ammonia is generated. It is said that when it is generated and the pH rises, an odor is generated at a stretch.

Therefore, it is important to decompose organic matter in feces while keeping the pH from rising.

Therefore, the present inventor paid attention to koji mold, and orally administered spores of koji mold to livestock to improve feces.

This koji mold has a history of more than 1,000 years as a microorganism for producing miso, soy sauce and the like, and is known to be sufficiently safe for livestock and humans who eat it. Furthermore, the spores of Aspergillus oryzae have an acid resistance that does not change at all when exposed to an acidic solution having a pH of about 1.5 in the digestive tract while passing through the digestive tract of a domestic animal.

The spores of Aspergillus oryzae sufficiently mixed with food in the digestive tract of the domestic animal are excreted in a state of being sufficiently mixed with feces, and thereafter the spores germinate in the feces, elongate the hypha and grow. Fermentation is performed. In this fermentation process, various enzymes are produced from the koji mold, the organic matter in the feces is decomposed by the enzymatic activity, the vitamin B group is increased, and accumulated as a nutrient source for useful microorganisms thereafter.
Since the enzyme is secreted out of the koji mold cells, the enzyme activity remains even after the koji mold cells are killed, and the decomposition of undecomposed organic matter in the feces is not affected unless the influence of heat generated by fermentation. Is continuously performed. In particular, aspergillus can use amines, which are decomposition products from proteins that are the source of ammonia, as nutrients, can convert carbohydrates that have not been decomposed and absorbed into livestock into organic acids, and can reduce the pH of feces. The rise can be reliably suppressed.

Furthermore, it has been found that when oligosaccharides are previously mixed with feces in order to promote the growth and growth of Aspergillus, the germinated Aspergillus grows and grows more efficiently using the oligosaccharide as a nutrient source. The present inventors have already confirmed that this means that the koji mold germinates and uses oligosaccharides in soybeans as a nutrient at the stage of growth (Japanese Patent No. 2685706: Japanese Patent Laid-Open No. 7-7).
No. 5518, "Method for removing oligosaccharides from soybean meal").

When the nutrients of the useful microorganisms are generated as described above, the useful microorganisms such as fungi, lactic acid bacteria, and bifidobacteria are brought into an environmental state where they can coexist and coexist with the koji mold. It naturally mixes in feces, proliferates using the above-mentioned nutrients as nutrients, and exerts an action of reliably suppressing an increase in pH of feces, and at the same time, suppresses the generation of harmful bacteria such as spoilage bacteria.

In the present invention thus made,
The method for modifying feces of the present invention according to claim 1, wherein the spores of Aspergillus are mixed into the feces, and the feces are fermented by the Aspergillus oryzae derived from the spores to decompose the organic matter contained in the feces, It is characterized by promoting the growth of useful microorganisms using the feces as a nutrient source of decomposed feces to modify the properties of the feces.
In this way, the action of koji mold and useful microorganisms suppresses an increase in fecal pH, reliably suppresses the generation of ammonia, which is a source of offensive odor, and suppresses the generation of harmful bacteria such as putrefactive bacteria. The dung has no odor and is reformed to a state that does not destroy the environment. In addition, the koji mold is sufficiently safe for livestock and humans who eat it, and is also highly safe.

The method for modifying feces according to claim 2 is the method according to claim 1, wherein the spores are mixed with the feces excreted from the animal by orally administering the spores of Aspergillus to the animal. It is characterized by the following. Thus, spores of Aspergillus oryzae can be mixed into feces without performing a special mixing operation.

[0020] The method for modifying feces according to claim 3 is characterized in that, in claim 1 or claim 2, the useful microorganism is at least one of fungi, lactic acid bacteria and bifidobacteria. Features. Such a useful microorganism has good compatibility with Aspergillus oryzae, and can more effectively exhibit the feces modifying action.

In a fourth aspect of the present invention, there is provided a method of modifying feces according to any one of the first to third aspects, wherein the feces have oligosaccharides mixed in advance. In this way, the germinated koji mold grows and proliferates more efficiently using the oligosaccharide as a nutrient source.

The modified feces according to claims 5 to 8 are respectively produced by the method according to the present invention according to claims 1 to 4, and have no odor and no environmental odor. It has been modified to a non-destructive state and is safe enough for livestock and humans who consume it.

Also, the fermented fertilizers according to the ninth to twelfth aspects have the feces of the present invention according to the fifth to eighth aspects, respectively. It is a quality fermented fertilizer that is safe enough for livestock and humans to consume it.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below with examples.

In this embodiment, chicken manure was deodorized and fermented.

First, spores of Aspergillus are mixed with chicken dung.

In this embodiment, the spores of Aspergillus oryzae adjusted to 5.0 × 10 ⁸ cells / g or more are added to the feed at 1/10
The mixture was orally administered together with the feed after mixing at 00% by weight.

The koji mold to be mixed is koji mold which has been used in fermented foods unique to Japan since ancient times, and is safe as foods such as Aspergillus usami, Aspergillus kawachi, Aspergillus awamori, Aspergillus cystii, Aspergillus oryzae, Aspergillus
Aspergillus oryzae such as niger may be used.

Aspergillus having a strong ability to produce organic acids is preferred. In the present embodiment, Aspergillus awamori was used.

The chicken manure excreted from the chicken inoculated with this feed was mixed with spores of Aspergillus so as to be sufficiently mixed.

In some chicken farms, oligosaccharides, which are a nutrient source of Aspergillus oryzae, were mixed with spores of Aspergillus orally in a feed and administered orally.

Many of these oligosaccharides are indigestible, and in chicken dung excreted from poultry, oligosaccharides are excreted in an undigested state, so that oligosaccharides and spores of Aspergillus oryzae are sufficiently mixed. Was mixed in. Commercially available oligosaccharides include coupling sugar, palatinose oligosaccharide, fructooligosaccharide, isomaltooligosaccharide,
There are soy oligosaccharides. For example, in the case of soybean oligosaccharides, when defatted soybeans were mixed with poultry feed, it was found that raffinose and stachyose, which are soybean oligosaccharides, were excreted in chicken dung undigested, as shown in the table below. .
Therefore, this means not only administering as defatted soybeans, but also mixing raffinose or stachyose, which is a soybean oligosaccharide as a single substance, with feed together or separately with the spores of Aspergillus orally, orally administering to poultry, and adding to chicken dung. It is also possible to mix them directly.

[0033] The spores of Aspergillus or the spores of Aspergillus oryzae mixed with oligosaccharides may be mixed into feces excreted from animals for the first time.

After that, the chicken manure was deposited and made into fermented fertilizer.

In the deposited chicken dung, spores of Aspergillus oryzae germinated, the hyphae were expanded and multiplied, and fermentation of the dung was started. In the case where the oligosaccharide was previously mixed with the spores of Aspergillus,
After germination, aspergillus is promoted in growth and proliferation using oligosaccharides as a nutrient source.

In this fermentation process, as described above, various enzymes are produced from the koji mold, the organic matter in the chicken dung is decomposed by the enzymatic activity, the vitamin B group is increased, and the useful microorganisms thereafter are reduced. Accumulated as a nutrient source. Since the enzyme was secreted out of the cells of the koji mold, the enzyme activity remained even after the cells of the koji mold died, and the decomposition of undecomposed organic matter in the feces was continued. Especially,
Aspergillus can use amines, which are decomposition products from proteins that are the source of ammonia, as nutrients, and can also produce carbohydrates that were not decomposed and absorbed by livestock into citric acid, increasing the pH of feces Was reliably suppressed, so that no odor was generated.

As described above, nutrients of useful microorganisms such as vitamin B group are generated. In an environment where such useful microorganisms and aspergillus can coexist and coexist, useful microorganisms such as fungi, lactic acid bacteria, and bifidobacteria, which are present in large numbers in nature, are naturally mixed into chicken manure and started to grow. When the chicken dung of the present embodiment was analyzed, a large number of fungi such as yeast, lactic acid bacteria, bifidobacteria and other microorganisms were found. In addition, these useful microorganisms may be any useful microorganisms, and the number of species may be at least one.
A plurality of types may be combined. Also, useful microorganisms may be added to match those naturally mixed.

When these useful microorganisms were mixed into feces and started to grow using the above-mentioned nutrients as nutrients, an increase in pH of chicken feces was surely suppressed, and a state where no bad smell was generated was maintained. In addition, when the microorganisms in the chicken dung in this state were analyzed, almost no harmful bacteria such as spoilage bacteria were found.

In this state, the deposited chicken dung was an extremely high-quality fermented fertilizer having no odor and suppressing the growth of harmful microorganisms.

It should be noted that the present invention is not limited to the above-described embodiment, and can be changed as needed.

[0041]

As described above, the method for treating feces of the present invention,
Since the modified feces and fermented fertilizers using the feces are composed and act, it is possible to modify the feces using koji mold and useful microorganisms that are safe enough for livestock and humans who eat them. Thus, the feces can be effectively used, and can be easily implemented, and the cost can be reduced.

Claims (12)

[Claims] 1. A spore of koji mold is mixed into feces, and the spores are fermented by the spore-derived koji mold to decompose organic substances contained in the feces. A feces modifying treatment method characterized by improving the properties of feces by promoting the growth of microorganisms. 2. The method for modifying feces according to claim 1, wherein spores of Aspergillus are orally administered to the animals so that the spores are mixed in the feces excreted from the animals. . 3. The method for modifying feces according to claim 1, wherein the useful microorganism is at least one of fungi, lactic acid bacteria and bifidobacteria. 4. The feces according to claim 1, wherein the feces have oligosaccharides mixed in advance.
Item 2. A method for modifying feces according to the item. 5. A spore of a koji mold mixed with a stool, the spore is fermented by the koji mold derived from the spore to decompose organic substances contained in the stool, and the stool from which the organic substance is decomposed is used as a nutrient source. A modified feces, comprising faeces whose properties have been modified by promoting the growth of microorganisms. 6. The modified feces according to claim 5, wherein spores of Aspergillus are orally administered to the animals so that the spores are mixed in the feces excreted from the animals. . 7. The modified feces according to claim 5, wherein the useful microorganism is at least one of fungi, lactic acid bacteria and bifidobacteria. 8. The method according to claim 5, wherein the feces has a pre-mixed oligosaccharide.
The feces which have been subjected to the modification treatment according to the above item. 9. A spore of a koji mold mixed with feces, the feces are fermented by the koji mold derived from the spores to decompose organic substances contained in the feces, and the feces having the organic substances decomposed are used as a nutrient source. A fermented fertilizer having feces whose properties have been modified by promoting the growth of microorganisms. 10. The fermented fertilizer according to claim 9, wherein a spore of Aspergillus is orally administered to an animal so that the spore is mixed in feces excreted from the animal. 11. The fermented fertilizer according to claim 9, wherein the useful microorganism is at least one of fungi, lactic acid bacteria, and bifidobacteria. 12. The fermented fertilizer according to claim 9, wherein the feces have oligosaccharides mixed therein in advance.