CN101348749B - Method for producing fat from screwworm - Google Patents
Method for producing fat from screwworm Download PDFInfo
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- CN101348749B CN101348749B CN2008101412982A CN200810141298A CN101348749B CN 101348749 B CN101348749 B CN 101348749B CN 2008101412982 A CN2008101412982 A CN 2008101412982A CN 200810141298 A CN200810141298 A CN 200810141298A CN 101348749 B CN101348749 B CN 101348749B
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- grease
- fly larvae
- squeezing
- screwworm
- oil press
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Abstract
The invention discloses a method for producing grease by utilizing screwworm, which comprises the following steps: the screwworm is cleaned, removed with impurities, killed and aired till the water content is below 10 percent; the aired screwworm is heated and roasted till the water content is below 3 percent; the roasted screwworm is encased to an oil press and squeezed; the temperature in a pressing chamber of the oil press is kept between 90 and 120 DEG C; more than 60 percent of grease is squeezed out; after the squeezing, grease and cake meal are obtained; and the grease is subjected to disinfection treatment. In the method, the screwworm as a raw material is easy to breed and obtain, has low price, few working procedure, relative low production cost and small investment; and the content of crude fat in the obtained grease can reach over 98.3 percent. The grease can replace fuel oil and be directly used and be used for chemical materials; the grease after the fine refining treatment can be used as high-class grease for medicine, chemical engineering, health-care food and other aspects; and the cake meal can be used as a high-protein feedstuff. The method is a good method for circularly developing and utilizing biological energy and is worthy of popularizing and implementing.
Description
One, technical field:
The present invention relates to utilize insect to produce greasy method, particularly relate to and utilize fly larvae to produce greasy method.
Two, background technology:
Fly is first of the healthy four pests of harm humans, and it carries virus and bacteria and can fly around, and blazes about disease, and as can propagating diseases such as dysentery, cholera, typhoid fever, viral hepatitis and infectious intestinal disease all are due to the fly; It is except that producing the harm the mankind, and the fly that has also harms the crops.
According to the pertinent data introduction, the fly development time of laying eggs only needs 8-10 hour when 35 spend, and larva growth period when 34-40 spends can shorten to 3-3.5 days.Fly is larva from laying eggs to collecting, and under the temperature and humidity adapt circumstance, management only need be with 4 day time when having raised.The life-span 30-60 of female fly days, its lifelong egg laying amount can reach the 600-1000 grain.
At present, both at home and abroad the breed of fly is all relatively paid attention to, developed countries such as the U.S. have realized that mechanize cultures fly larvae on a large scale; Provinces and cities such as China Tianjin, Guangxi, Jiangxi, Hunan, Jiangsu and Wuhan are all in develop actively fly larvae aquaculture, and the most direct purposes of fly larvae is as high protein feed at present, and the breed fly worm that has is as high protein foodstuff.
From the comprehensive development and utilization aspect of fly larvae, the Application and Development of fly larvae aspect animal protein feed and utilize the edible and nutrient health aspect of fly maggot protein exploitation that relevant report is all arranged, but the grease utilization of fly larvae research is then less.Contain certain grease in the fly larvae composition; from assay; ripe fly larvae contains grease 31.2%; the prematurity larva contains grease 27.5%; so the grease utilization of fly larvae should have certain value; the promotion development of this method had both reached the purpose of fly-killing protection human body health, can utilize grease to replace the energy again, even developed senior grease and be used for medicine, chemical industry, protective foods etc.
Application number is 200610014445.0 to disclose a kind of method of extracting fly maggot oil, and this method adopts extraction, through steps such as sherwood oil lixiviate, Solid-Liquid Separation, underpressure distillation, obtains grease at last.This method operation is more, and must carry out under reduced pressure, operates more loaded down with trivial details; Add man-hour in a large number with an organic solvent, environment is polluted, and sherwood oil is inflammable, explosive, volatile, toxicity is big, cause direct harm operator are healthy, and the production cost height; The grease obtained residual hazardous and noxious substances of this method is difficult for removing, and influences the utility value of grease and crude protein.
Three, summary of the invention:
The technical problem to be solved in the present invention: provide a kind of work simplification, the economical and practical fly larvae that utilizes to produce greasy method.
Technical scheme of the present invention:
A kind ofly utilize fly larvae to produce greasy method, may further comprise the steps,
(1) fly larvae cleaned, after the removal of impurities, killed, again airing to moisture content below 10%;
(2) fly larvae with airing is heated to 50～70 ℃, is baked to moisture content below 3%;
(3) fly larvae after will toasting is packed into and squeezes in the oil press zhai, and the oil extruder bore temperature remains on 90～120 ℃, and the squeezing grease more than 60% is wherein come out, and obtains grease and grouts after the squeezing;
(4) grease is disinfected get final product.
Described killing is at 50～70 ℃ of time baking 3～5min with fly larvae.
Described squeezing is twice, for the first time the squeezing grease more than 60% in the fly larvae is come out, and for the second time grouts is sent into oil press zhai, and the squeezing grease of remnants is come out.
Described disinfecting comprise and use charcoal absorption, through decolouring, removal of impurities, deodorizing and filtration, grease is heated to 120～130 ℃ and be incubated 10～20min again, can obtain polished fat after the cooling; Described grouts flour to 2mm, is used as high protein feed.
Described oil press zhai is screw oil expeller, hydraulic pressure or machine pressure type oil press zhai.
Adopt the screw oil expeller squeezing during squeezing, the wing nut of the main shaft of this oil press zhai adopts sleeve type, and wing nut is five, from opening for feed, be that a joint is the single thread wing nut successively, be two above thread helix covers of at least four joints later on, the pitch of each joint is successively decreased in order successively.The breaking capacity of this oil press zhai is stronger, can be with fly larvae thicker and toughness preferably cortex fully be broken for particulate, by pressing gun pressure power grease is fully squeezed out again.
This oil press zhai is another patent of contriver, and the patent No. is 200620032576.7, and the applying date is 2006.9.20, and patent name is: the spiral Oil press.
Positive beneficial effect of the present invention:
1. method raw material fly larvae of the present invention is easily raised, and is cheap and easy to get, adopts hot pressing press for extracting juice method that fly larvae is processed into grease.This method is compared with extraction, and oil yield height, impurity are few, and the non-oily ＇ fat composition (unsaponifiables such as phosphatide and VITAMIN) in the grease is residual less, has avoided dissolvent residual, and aftertreatment technology is simpler; Operation is few, and production cost is relatively low.
2. method technology of the present invention is simple, less investment, and crude fat content can reach more than 98.3% in the grease that obtains, and this grease can replace oil fuel directly to use, and also can be used for industrial chemicals; After refining treatment, can make senior grease, be used for aspects such as medicine, chemical industry, protective foods; The gained grouts can be used as high protein feed.
3. method of the present invention can fly-killing, the protection environment, can utilize the grease instead of part energy of generation to use again, is a kind of good method of bioenergy circulation development and use, and enforcement is worthy to be popularized.
Four, embodiment:
Following examples only are in order to further specify the present invention, not limit particular content of the present invention.
Embodiment one:
Utilize fly larvae to produce greasy method, may further comprise the steps:
(1) the fly larvae live body of culturing is put into the pond of flowing and is cleaned scrubbing, removal of impurities,, kill the back and collect at 50～70 ℃ of baking 3～5min down, again airing to moisture content below 10%;
(2) under 50～70 ℃ temperature, be baked to moisture content once more below 3%;
(3) fly larvae is packed into screw oil expeller squeezing, the oil extruder bore temperature remains on 90～100 ℃ during squeezing, carry out twice squeezing, the squeezing grease more than 70% in the fly larvae is come out in the first pass squeezing, obtain grease and grouts, grouts are packed into carry out twice pressing in the screw oil expeller, squeeze out the remaining grease more than 10% again, grouts through flour to can be below the 2mm as high protein feed.
Because fly larvae cortex is thicker, good toughness destroys relatively difficulty of its cell, so adopt the screw oil expeller squeezing.The wing nut of this oil press zhai main shaft adopts sleeve type, and wing nut is more than five, from opening for feed, is a joint single thread wing nut successively, two joint triple thread wing nuts, and two joint two thread helix covers, the pitch of each joint is successively decreased in this order successively.The breaking capacity of this oil press zhai is stronger, and the fully broken back of fly larvae cortex is squeezed in pressing thorax, grease fully can be squeezed out, and the squeezing effect is better, and the concrete structure of this oil press zhai is seen the patent of the patent No. 200620032576.7.
(4) grease that obtains can be used as oil fuel and replaces the energy, or with grease after filtration, after the sterilization, use as chemical industry, medical material grease the packing back.
Embodiment two:
Utilize fly larvae to produce greasy method, may further comprise the steps:
(1) utilize other plant drying in the sun fly larvaes through scrubbing, removal of impurities, toast fly larvae with type of heating, being baked to moisture content under 50～70 ℃ the temperature is below 2%;
(2) fly larvae is packed into screw oil expeller squeezing, the oil extruder bore temperature remains on 90～120 ℃ during squeezing, carries out first time and squeezes, and the squeezing grease more than 70% in the fly larvae is come out, and obtains grease and grouts after the squeezing;
(3) grouts are carried out the squeezing second time again, extract the grease more than 10% again, this grease can directly replace the energy to use; With grouts through flour to can be below the 2mm as high protein feed.
Embodiment three:
Utilize fly larvae to produce greasy method, may further comprise the steps:
(1) the fly larvae live body of culturing is put into the pond of flowing and is cleaned scrubbing, removal of impurities,, kill the back and collect with 50～60 ℃ of baking disinfecting 3min, airing to the moisture mass content below 7%;
(2) toast fly larvae with type of heating, under 50～70 ℃ temperature, be baked to moisture content below 3%;
(3) fly larvae is packed into screw oil expeller squeezing, the oil extruder bore temperature remains on 110 ℃ during squeezing
About, carry out twice squeezing, for the first time the squeezing grease more than 70% in the fly larvae is come out, obtain grease and grouts after the squeezing, grouts are carried out twice pressing again, squeeze out the remaining grease more than 10% again, grouts through flour to can be below the 2mm as high protein feed.
(4) with the grease charcoal absorption, after removing look, removal of impurities, deodorizing, after the filtration grease is heated to 120～130 ℃, insulation 10～20min, can obtain senior polished fat after the cooling, packing gets final product.
Claims (3)
1. one kind is utilized fly larvae to produce greasy method, it is characterized in that: may further comprise the steps,
(1) fly larvae cleaned, after the removal of impurities, killed, again airing to moisture content below 10%;
(2) fly larvae with airing is heated to 50～70 ℃, is baked to moisture content below 3%;
(3) fly larvae after will toasting is packed into and squeezes in the oil press zhai, and the oil extruder bore temperature remains on 90～120 ℃, and the squeezing grease more than 60% is wherein come out, and obtains grease and grouts after the squeezing; Fly larvae after perhaps will toasting is packed into and squeezes twice in the oil press zhai, for the first time the squeezing grease 60% or more in the fly larvae is come out, and send grouts into oil press zhai the second time, and the squeezing grease of remnants is come out;
(4) grease is disinfected; Described disinfecting comprise and use charcoal absorption, through decolouring, removal of impurities, deodorizing and filtration, grease is heated to 120～130 ℃ and be incubated 10～20min again, can obtain polished fat after the cooling; Described grouts flour to 2mm, is used as high protein feed.
2. according to claim 1ly utilize fly larvae to produce greasy method, it is characterized in that: described killing is with fly larvae baking 3～5min 50～70 ℃ the time.
3. according to claim 1ly utilize fly larvae to produce greasy method, it is characterized in that: described oil press zhai is screw oil expeller or fluid pressure type oil press zhai.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101412982A CN101348749B (en) | 2008-09-05 | 2008-09-05 | Method for producing fat from screwworm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101412982A CN101348749B (en) | 2008-09-05 | 2008-09-05 | Method for producing fat from screwworm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101348749A CN101348749A (en) | 2009-01-21 |
| CN101348749B true CN101348749B (en) | 2011-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101412982A Expired - Fee Related CN101348749B (en) | 2008-09-05 | 2008-09-05 | Method for producing fat from screwworm |
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| CN (1) | CN101348749B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838582B (en) * | 2009-03-20 | 2012-07-04 | 杜荣骞 | Industrialized one-step method for extracting housefly larvae fat |
| CN101880592A (en) * | 2010-06-13 | 2010-11-10 | 中山大学 | Use of Boettcherisca peregrine maggots as oil plant insects |
| CN101880590A (en) * | 2010-06-13 | 2010-11-10 | 中山大学 | Application of Chrysomya megacephala larvae as oil insects |
| CN102660383B (en) * | 2012-06-02 | 2013-04-24 | 哈尔滨工业大学 | Separation process of essential oil in toad maggots |
| CN102660382B (en) * | 2012-06-02 | 2013-05-01 | 哈尔滨工业大学 | Separation process of essential oil in toad maggots |
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2008
- 2008-09-05 CN CN2008101412982A patent/CN101348749B/en not_active Expired - Fee Related
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| CN101348749A (en) | 2009-01-21 |
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