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Method for extracting hermetia illucens prepupa grease

An extraction method and technology for Heishui horsefly, which are applied in the directions of fat oil/fat production, fat oil/fat refining, and fat production, etc., can solve the problems of complicated operation, environmental pollution, and many process steps, and achieve the effect of ensuring the use value.

Pending Publication Date: 2021-12-21
杭州谷胜科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process has many procedures and is cumbersome to operate, and a large amount of organic solvents are used in the processing, which pollutes the environment and has certain risks of use.

Method used

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  • Method for extracting hermetia illucens prepupa grease

Examples

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Effect test

preparation example Construction

[0027] In the present invention, the preparation method of described dry black soldier fly prepupa preferably comprises the following steps:

[0028] Drying and screening the black soldier fly prepupa raw materials in sequence to obtain dry black soldier fly prepupa.

[0029] In the present invention, the present invention has no special requirements on the source of the black soldier fly prepupae, and the black soldier fly prepupae from sources well known in the art can be used, such as self-cultivated or commercially available.

[0030] In the present invention, the drying method preferably includes one or more of electrothermal drying, microwave drying and freeze drying. In the present invention, the temperature of the electrothermal drying is preferably 60-105° C., more preferably 80-90° C., and the time is preferably 4-6 hours, more preferably 5 hours.

[0031] In the present invention, the power of the microwave drying is preferably 500-900W, more preferably 600-800W; t...

Embodiment 1

[0047] The extraction method of black soldier fly prepupa oil comprises the following steps:

[0048] (1) The black soldier fly prepupa is dried by electric heating to a moisture content of 5 wt%, and an oil content of 35%.

[0049] (2) The dried worms obtained in step 1 are separated by wind and magnetic separation system, and the wind speed is set at 5m / s to remove impurities generated during the drying process.

[0050] (3) The dried worms obtained in step 2 are mixed with barley and then enter the crusher to be crushed into fine pieces with a particle size of 2-4 mm.

[0051] (4) The dried worms obtained in step 3 are preheated at a temperature of 50°C.

[0052](5) The raw material obtained in step 4 is hot-pressed by using a screw press at a temperature of 100°C.

[0053] (6) The crude oil obtained in step 5 is subjected to centrifugal primary filtration under 8000 g of centrifugal force, and the obtained supernatant is subjected to secondary filtration with a filter pr...

Embodiment 2

[0055] The extraction method of black soldier fly prepupa oil comprises the following steps:

[0056] (1) The black soldier fly prepupa is freeze-dried to a moisture content of 3% and an oil content of 42%.

[0057] (2) The dried worms obtained in step 1 are separated by wind and magnetic separation system, and the wind speed is set to 6m / s to remove impurities generated during the drying process.

[0058] (3) Add the dried worms obtained in step 2 into corn and mix them into a crusher, and crush them into fine pieces with a particle size of 2 to 4 mm.

[0059] (4) The raw material obtained in step 3 is cold-pressed by a screw press at a temperature of 50° C., and the obtained residue is re-crushed and then cold-pressed again.

[0060] (5) All the crude oil obtained in step 4, and then the centrifugal force is controlled at 10000g for centrifugal primary filtration, and the obtained supernatant is subjected to secondary filtration with a filter press at a pressure of 0.25 MPa...

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Abstract

The invention provides a method for extracting hermetia illucens prepupa grease, and belongs to the technical field of biological extraction. The method is characterized in that dry hermetia illucens prepupae and an auxiliary material are mixed to obtain a mixture, the water content of the dry hermetia illucens prepupae is smaller than or equal to 8 wt%, the auxiliary material is vegetable oil and / or crop seeds, and the mixture is squeezed to obtain crude oil. According to the extraction method, no organic solvent is used, so that pollution of the organic solvent to the environment can be avoided. According to the invention, dry hermetia illucens prepupae and an auxiliary material are mixed before squeezing, so that the hermetia illucens can be agglomerated during squeezing, the pressure in the squeezing is increased, and the sliding speed is reduced so as to increase the oil extraction rate of the hermetia illucens prepupae; and the result of the embodiment shows that the oil extraction rate of the hermetia illucens prepupae is 33-35%.

Description

technical field [0001] The invention relates to the technical field of biological extraction, in particular to a method for extracting black soldier fly prepupa oil. Background technique [0002] Black soldier fly prepupae are rich in protein and fat, accounting for 40-44% and 25-45% of the dry weight respectively, and contain a variety of sugars (chitosan, etc.), amino acids, enzymes, antimicrobial peptides and other high value-added activities Substances, as well as a variety of vitamins and minerals, have high nutritional value. [0003] The comprehensive development and utilization of black soldier flies mainly focus on the development and application of animal protein feed and the extraction of active ingredients, but there are few studies on the oil extraction of black soldier fly prepupa. From the analysis of the components of the black soldier fly, it can be seen that the prepupa of the black soldier fly is rich in oil, and the oil of the prepupa of the black soldie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/02C11B1/06C11B1/08C11B3/00
CPCC11B1/02C11B1/06C11B1/08C11B3/008
Inventor 江承亮张志剑
Owner 杭州谷胜科技有限公司
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