KR100713684B1 - Manufacturing method of pellet diet for insects - Google Patents

Abstract

The present invention relates to a method for producing a pellet feed for insect breeding, and more particularly, in the manufacture of pellet feed for insect breeding, by feeding the feed formulation with the binder added to the feed ingredients to the extruder pellet feed under appropriate extrusion conditions And it relates to a method for producing a pellet feed for insect breeding comprising the step of aging the pelletized feed.

In the present invention, pellet feed for insect breeding, comprising the step of supplying a feed formulation to which the binder is added to the feed ingredient to the extruder, pelletizing the feed under suitable extrusion conditions, and aging the pelletized feed To provide a method of manufacturing.

In the method for producing a pellet feed for insect breeding of the present invention, in the preparation of insect feed pellet feed, adding a binder to the feed ingredients for compounding, feeding the feed blend to the extruder pelletizing the feed, Aging the pelletized feed.

Description

Manufacturing method of pellet diet for insects

1 is a photograph showing the arrangement of the screw including the reverse screw in the twin-screw compressor used in the preparation of pellet feed for farming of the present invention.

Figure 2 is a picture showing a twin screw extruder (twin screw extruder) used in the manufacture of pellet feed of the present invention.

Figure 3 is a photograph showing the pellet feed of Lepidoptera insects prepared in Example 1 of the present invention.

Figure 4 is a photograph showing the pellet feed for king crickets prepared in Example 2 in the present invention.

<Explanation of symbols for the main parts of the drawings>

1: main motor 2: feed motor

3: flow meter 4: barrel

5: pressure gauge

The present invention relates to a method for producing a pellet feed for insect breeding, and more particularly, in the manufacture of pellet feed for insect breeding, by feeding the feed formulation with the binder added to the feed ingredients to the extruder pellet feed under appropriate extrusion conditions And it relates to a method for producing a pellet feed for insect breeding comprising the step of aging the pelletized feed.

The pellet feed of the present invention can be used as a feed for insects such as lepidoptera insects such as pabam moth, tobacco germweed moth, and insects such as king crickets.

Insects are widely used for research in universities and research institutes, and boards are also used for feeding foods for experiments and pets. For the smooth supply of these insects, it is necessary to breed large numbers of insects. .

In order to raise a small number of insects, the food of insects in the natural world can be fed. However, in order to breed a large number of insects, it is necessary to supply the food necessary for insect breeding because only the food of the insects in nature is insufficient.

On the other hand, insects are increasingly demanded as pet insects, like pets, in addition to the foods of the above-mentioned experimental animals, so that the development and supply of artificial feed for insect breeding as food is increasingly required.

The development of artificial feed is essential for the winter season of breeding insects for the development of industrialization technology of useful insect resources.

Currently, artificial feed for insect breeding is mostly a wet feed. In order to prepare a finished product, powdered feed is mixed with water, kneaded, and then steamed, sterilized and cooked, taken out, re-baked, and molded. The artificial feed for insect breeding has a lot of inconvenience, such as a lot of time to prepare the feed and the storage of the prepared feed is difficult to preserve for more than two months even in the refrigerator.

On the other hand, as the prior art related to the present invention, the Republic of Korea Patent Publication No. 2005-0109829 is to change the form of the feed that has been used as a feed for the adult insects of the locust, not only to facilitate the feeding but also to facilitate the continuous supply of fresh feed Regarding the processing method of insect feed and feed prepared in the form of beads containing 1 to 3% by weight of gelling agent, 0.05 to 0.02% by weight of citric acid, 20 to 30% by weight of sugar and 0.5 to 2% by weight of feed aid There is content.

However, the prior art, in the production of insect feed pellet feed, comprising the step of supplying a feed formulation with a binder added to the feed ingredient to the extruder pelletizing the feed under the appropriate extrusion conditions, and aging the pelletized feed The present invention, which shows a method for producing insect feed pellet feed, is different from the technical configuration.

In order to solve the problems mentioned above, the present invention studies the development of a new artificial feed for mass production of useful insects throughout the year, adding a binder to the feed ingredients for insect breeding and using an extruder, preferably a twin screw extruder. The present invention has been accomplished by applying suitable extrusion conditions to prepare a pellet feed for insect breeding that can absorb sufficient water in a short time and has no stickiness of the feed.

Therefore, the present invention provides pellet feed for insect breeding comprising the step of feeding the feed formulation to which the binder is added to the feed ingredient to the extruder, pelletizing the feed under suitable extrusion conditions, and aging the pelletized feed in the manufacture of pellet feed To provide a method of manufacturing a feed.

The pellet feed for insect breeding prepared according to the present invention can be molded and cooked at once by using an extruder, preferably a twin screw extruder, and then the feed can be stored for a long time at room temperature and only a certain amount of water when feeding to a target insect Since it is easy to add and supply immediately, it is a new technology of practical aspect that has added value as a next-generation feed, so it can greatly contribute to insect industrialization in the future.

Method for producing a pellet feed for insect breeding of the present invention for achieving the above-mentioned object, in the production of insect feed pellet feed, the step of adding a binder to the feed ingredients for compounding, by feeding the feed blend to the extruder Pelletizing the feed, aging the pelleted feed.

The pellet feed for insect breeding prepared by the present invention can be used as feed for breeding Lepidoptera insects.

The insect feed pellet feed prepared by the present invention can be used as a cricket breeding feed.

In the above, lepidoptera insects include beech moth or tobacco weed moth.

In the insect breeding feed of the present invention, any feed ingredient may be used as long as it is a feed ingredient used in conventional insect breeding.

Among the feed ingredients for insect breeding of the present invention includes any one or more selected from carbohydrate sources, sugars, vitamins, micronutrients, molding agents, preservatives.

Carbohydrate source in the insect breeding feed ingredients of the present invention can be used any one or more selected from starch, corn flour, rice flour, flour, barley flour, potato flour, sweet potato powder, bran.

The starch may be any one or more selected from potato starch, sweet potato starch, corn starch, rice starch, wheat starch.

Carbohydrate source in the insect breeding feed component of the present invention can be used 40 to 70% relative to the total weight of the feed.

Among the feed ingredients for insect breeding of the present invention, the sugar may be any one or more selected from sucrose, sugar, glucose, fructose, malt, syrup, dextrin, and oligosaccharide.

Among the feed ingredients for insect breeding of the present invention, the sugar may be used in an amount of 1 to 20% based on the total weight of the feed.

As a micronutrient component of the insect breeding feed ingredient of the present invention, any one or more selected from vitamins, β-sitosterol, and inositol may be used.

The micronutrient component of the insect breeding feed ingredient of the present invention may be used in an amount of 0.1 to 10% based on the total weight of the feed.

Among the feed ingredients for insect breeding of the present invention, the molding agent Guar Gum, Locust Bean Gum, Xanthan Gum, Cyclodextrin, Arabic Gum, Gellan Gum ( Gellan Gum, Carrageenan, Karaya Gum, Casein, Tara Gum, Tamarind Gum, Tragacanth Gum, Pectin, Glucomannan, Gum Ghatti, Cyclodextrin Syrup, Arabino Galactan, Purcelleran, Pullulan, Glucosamine The above can be used.

Among the feed ingredients for insect breeding of the present invention, the molding agent may be used in an amount of 1 to 15% based on the total weight of the feed.

Among the feed ingredients for insect breeding of the present invention, antiseptic may be used as long as it can be used in food. In the present invention, one or more selected from salicylic acid, calcium propionate, sodium benzoate, sodium nitrite, sorbic acid (Sorbic acid), methyl parahydroxybenzoic acid can be used as an example of such preservatives.

Among the feed ingredients for insect breeding of the present invention, preservatives can be used in the amount usually added to the feed. In the present invention, the content of such preservatives may be appropriately selected and used by those skilled in the art.

In the preparation of the insect breeding feed of the present invention, by adding and blending a binder to the feed ingredient, the feed can be prepared without pellets or sticky feed. As one example of the binder in the present invention, at least one selected from gelatin, alginic acid, sodium alginate, ammonium alginate, potassium alginate, calcium alginate, and calcium alginate Can be used.

In the insect breeding feed ingredient of the present invention, the binder may be used to include 1 to 5% by weight based on the total weight of the feed.

Use of the binder in the insect feed composition of the present invention less than 1% by weight relative to the total weight of the feed is insufficient to act as a binder, the use of the binder when the binder is used in excess of 5% by weight relative to the total weight of the feed There is no apparent effect increase by increase.

When preparing the feed for insect breeding of the present invention, the feed formulation can be pelletized by feeding the feed formulation blended by adding a binder to the feed component.

In the present invention, the extruder used for producing insect feed may use an extruder having one shaft, and preferably, a twin screw extruder having two shafts may be used to more easily manufacture pellet feed.

In the manufacture of insect feed for the present invention, the extruder may include one or more reverse screws formed on a portion of the shaft, and one or more shafts on which the reverse screws are formed.

In the above, the reverse screw means a screw thread formed in a shape or rotation direction opposite to a screw thread formed in a shape or rotation direction on an axis.

In the extruder used in the manufacture of insect feed for the present invention, by forming at least one reverse screw on a part of the shaft, it is possible to increase the pressure in the barrel to promote swelling of the feed.

In the manufacture of the insect breeding feed of the present invention, the feed mixture is supplied to the extruder, and the water is added, the main motor which can be connected to the shaft inside the barrel (barrel) to control the rotational speed of the shaft, feed motor that can supply the feed mixture and Pelletized feed may be obtained by extrusion under extrusion conditions including temperature control of the barrel portion.

In the present invention, as an example of the extrusion conditions in the production of pellet feed, the feed mixture is fed to the extruder, and the amount of water added is adjusted to 70 ~ 80ml / min, the main motor speed of the extruder 200 ~ 400rpm, feed motor speed 200 ~ 250rpm, barrel Pellet feed for insect breeding can be prepared by pelletizing under the extrusion conditions of the front temperature of 70 ~ 80 ℃, the barrel middle temperature of 100 ~ 130 ℃, the barrel rear temperature of 70 ~ 80 ℃. The front part of the barrel is in the direction of the pellet feed.

In the present invention, when the insect feed pellet feed was prepared under various extrusion conditions, it was possible to produce insect feed pellet feed according to the object of the present invention when pelletizing feed ingredients under the above-described extrusion conditions.

On the other hand, in the present invention by those skilled in the art in the manufacture of pelletized feed using an extruder by appropriately adjusting the optimal extrusion conditions for various types of extruders in addition to the above-mentioned extrusion conditions Since pelletized feed is sufficient to obtain, the following extrusion conditions will be omitted.

When the feed for insect breeding of the present invention is produced by absorbing the feed pelleted by water under the above extrusion conditions, the physical properties of the feed are slightly reduced, and water does not penetrate into the feed, making it difficult for insects to sufficiently feed the feed. there is a problem. Therefore, the present invention preferably comprises the step of aging the pelletized feed under the extrusion conditions to solve this problem.

The aging may be carried out for 5 to 10 days at a humidity of 70 to 80%, 20 to 28 ℃.

In the present invention, the pelletized feed is subjected to aging under various conditions using an extruder. In order to obtain pellet feed for insect breeding in accordance with the object of the present invention, it is preferable to perform aging under the conditions described above.

In the present invention, the pelleted insect feed can be obtained by adjusting the diameter of the extruder die and the speed of the cutter pellet feed for insect breeding having a size suitable for feeding insects to be reared. In the present invention, by adjusting the diameter of the extruder die and the speed of the cutter can be prepared pellet feed for insect breeding having a diameter of 5 to 15mm, the length of 5 to 30mm.

Hereinafter, the content of the present invention will be described in detail through examples and test examples. However, these are intended to explain the present invention in more detail, and the scope of the present invention is not limited thereto.

Example 1 Preparation of Pellets Feed for Lepidoptera Insect Breeding

Β-sitosterol 0.2%, inositol 0.4%, sucrose 12%, corn starch 2%, carrageenan 2%, vitamin C 2%, water-soluble vitamins (vitamin B group) ) Feed ingredients were prepared by mixing 4.4%, yeast 16%, wheat germ 20%, and kidney beans 40%.

Gelatin was added to the above feed ingredients as a binder so that 1% of the total feed weight was added and blended.

The feed formulation was fed to a twin screw extruder having two shafts each having a reverse screw formed at the front and the center as shown in Fig. 1, and extruded to obtain pelletized feed having a diameter of 10 mm and a length of 20 mm.

After the feed compound is fed to the extruder, the extrusion condition during extrusion is 75ml / min water addition, feed feed is fed into the barrel equipped with the shaft at the feed motor speed of 228rpm, the main connected to the shaft inside the barrel The shaft was rotated with the speed of the motor at 300 rpm. At this time, the temperature before the barrel where the pelletized feed appeared was 75 ° C, the barrel temperature was 115 ° C, and the temperature after the barrel was 75 ° C.

The pelletized feed obtained above was aged at 75% with a humidifier at a constant temperature of 25 ° C. for 7 days to prepare a lepidoptera insect breeding pellet feed as shown in FIG. 3.

The twin-screw extruder used when preparing pellet feed is shown in FIG. 2.

In FIG. 2, the main motor 1 is located at the right side of the portion marked in yellow, and the feed port through which the feed mixture is supplied to the upper portion of the portion marked in yellow and feed the feed mixture into the barrel. motor (2), with a flow meter (3) and a barrel (4) and a pressure gauge (5) to measure the pressure inside the barrel to the left of the yellow-marked part. It is provided.

Example 2 Preparation of pellet feed for rearing crickets

Feed ingredients were prepared by mixing 60% wheat bran, 25% fish meal, 5% corn flour, and 5% potato starch based on the total feed weight.

Gelatin was added to the above food ingredients as a binder so that 5% of the total weight of the food was added and blended.

The feed formulation was fed to a twin screw extruder (see FIG. 2) having two shafts each having a reverse screw formed at the front and the center thereof as shown in FIG. 1, and extruded to obtain pelletized feed having a diameter of 5 mm and a length of 20 mm. At this time, the extrusion conditions of the twin screw extruder were used in the same manner as in Example 1.

The pelletized feed obtained above was aged at a humidity of 75% using a humidifier at a constant temperature of 25 ° C. for 7 days to prepare a pellet feed for rearing cricket as shown in FIG. 4.

<Test Example 1>

Pellets for breeding the lepidoptera produced in Example 1 and the conventional feed to each of 150 heads of night moth ( S. exigua ) to measure the number of larvae fruiting day, solubility rate, solution weight, allegory rate and the results Table 1 summarized.

In the above feed, preservatives (methylparahydroxybenzoic acid) 1.0%, antibiotics (chloramphenicol) 1.5%, carrageenan 5%, vitamin C 1.5%, mouse feed 19%, yeast 15%, wheat germ 19%, kidney beans powder 39% The mixture was kneaded in water, and then steamed at 100 ° C. and then cooled at room temperature.

Table 1. Results of S. exigua Breeding Test

Type of feed Public announcement Larva fruit days (days) Dissolution Rate (%) Weight (mg) Fable Rate (%) Existing feed 150 15.5 ± 1.3 82.9 103 ± 13 78.0 Pellet feed 150 13.0 ± 1.3 86.7 72.4 ± 4.3 78.7

<Test Example 2>

The pellet feed prepared in Example 1 and the conventional feed were respectively fed to 150 litters of tobacco litterworm ( S. litura ) to measure the number of larvae fruiting date, solubilization rate, solution weight, allegory rate, and the results are shown in the table below. 2 is shown collectively.

In the above conventional feed, the conventional feed mentioned in Test Example 1 was used.

Table 2. S. litura breeding test results

Type of feed Public announcement Larva fruit days (days) Dissolution Rate (%) Solution weight (mg) Fable Rate (%) Existing Feed 150 22.3 ± 1.5 76.5 302.4 ± 12.8 58.0 Pellet feed 150 18.2 ± 1.4 87.3 291.4 ± 14.3 66.7

<Test Example 3>

Pellets for breeding and feeding the conventional feed for the crickets produced in Example 2, respectively, were fed to 100 crickets ( T. emma ) to measure the number of worms, fruiting age, adultization rate and the results are summarized in Table 3 below. .

Existing feed in the above was used as a powdered feed mixed with 60% bran, fish meal 40%.

In the above, when feeding the pellet feed and conventional feed to the cricket, water was freely ingested.

Table 3. T. emma Breeding Test Results

Type of feed Public announcement Yakchung fruit days (day) Adultization rate (%) Existing feed 100 61.2 ± 4.1 47.0 Pellet feed 100 62.3 ± 5.2 52.0

As shown in the breeding results of feeding the pellet feed prepared by the present invention as shown in Tables 1 to 3, which are the test results in Test Examples 1 to 3, the breeding performance by the pellet feed manufactured by the present invention is conventional. Compared with the feed, it was never inferior, indicating that the feed value was sufficient.

The present invention can reduce the insect production cost by the convenience of feed preparation and the reduction of breeding effort in mass production of insects, and the convenience of storing the feed for a long time, so that the breeding of experimental insects and the breeding of pet insects in universities and research institutes The use of the pellet feed of the present invention is expected to increase.

As described above, although described with reference to the preferred embodiment of the present invention, those skilled in the art will be variously modified without departing from the spirit and scope of the invention described in the claims below. And can be changed.

Claims (6)

In the manufacture of pellet feed for insect breeding, Compounding by adding a binder to the feed ingredients, Feeding the feed blend to an extruder to pellet feed; Method for producing a pellet feed for insect breeding comprising the step of aging the pelletized feed at a humidity of 70 to 80%, 20 to 28 ℃ for 5 to 10 days. The method of claim 1, wherein the binder is gelatin, alginic acid, sodium alginate, ammonium alginate, potassium alginate, calcium alginate, any one or more selected from the production of insect feed pellet feed characterized in that it comprises 1 to 5% of the total weight of the feed. Way. delete delete The method of claim 1, wherein the pellet feed is a method for producing insect feed pellet feed, characterized in that the feed for the lepidoptera insects. The method of claim 1, wherein the pellet feed is a cricket breeding feed production method for insect breeding pellets feed.

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