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Maggot oil extraction by ultrasonic-assisted extraction method and maggot oil

A kind of grain insect oil and ultrasonic technology, applied in the direction of fat oil/fat production, chemical/physical/physicochemical process of energy application, fat generation, etc., can solve the problem of unsuitable for large-scale production, low energy consumption, and the amount of residual oil in cake residue Advanced problems, to achieve the effect of maintaining functional properties and nutritional value, reducing the number of extractions, and high product yield

Inactive Publication Date: 2014-10-15
中海海洋无锡海洋工程装备有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional pressing method has the advantages of good oil quality, light color, pure flavor, etc., but the amount of residual oil in the cake residue after pressing is high, the oil yield is low, and the energy consumption is large; the supercritical extraction method has a high oil yield and oil quality. It is also better, but the cost is too high and it is not suitable for large-scale production; the solvent extraction organic solvent extraction method has low cost, low energy consumption, and is easy to achieve large-scale production

Method used

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  • Maggot oil extraction by ultrasonic-assisted extraction method and maggot oil
  • Maggot oil extraction by ultrasonic-assisted extraction method and maggot oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Drying, under the conditions of vacuum degree of 0.06MPa and temperature of -45°C, freeze-dry for 48 hours; moisture content is less than 8%.

[0023] (2) Extraction, crush the dried grain worms with a universal grinder, sieve, take out the 50-mesh grain insect powder, add a certain amount of the grain insect powder into the reaction device, and add the solvent according to 8 times the weight of the grain insect powder, Extraction temperature 25°C, ultrasonic power 300w, ultrasonic extraction 25min, soak for 24 hours, suction filtration, add 3 times the amount of solvent to the filter residue according to the weight ratio, extraction temperature 25°C, ultrasonic power 300w, ultrasonic extraction 25min, soak for 24 hours, suction filtration , combined filtrate.

[0024] (3) Collect, centrifuge the suction-filtered mixture at 4000r / min for 15min, and obtain the supernatant as the extract; use a rotary evaporator to evaporate the obtained supernatant under reduced pres...

Embodiment 2

[0033] (1) Drying, under the conditions of vacuum degree of 0.08MPa and temperature of -50°C, freeze-dry for 24 hours; the moisture content is less than 10%.

[0034] (2) Extraction, crush the dried grain worm with a universal grinder, sieve, take out the 80-mesh grain insect powder, add a certain amount of the grain insect powder into the reaction device, and add the solvent according to 5 times the weight of the grain insect powder, The extraction temperature is 30°C, the ultrasonic power is 250w, the ultrasonic extraction is for 15 minutes, soaked for 24 hours, and suction filtered.

[0035] (3) Collect, centrifuge the filtrate obtained by suction filtration at 3000r / min for 20min, and obtain the supernatant as the extract; use a rotary evaporator to evaporate the obtained supernatant under reduced pressure to remove the solvent, and recover the solvent at the same time .

[0036] (4) Drying. Finally, vacuum-dry the grain insect oil from which the solvent has been removed ...

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Abstract

The invention discloses maggot oil extraction by ultrasonic-assisted extraction method and maggot oil, and the maggot oil extraction comprises the following steps: a drying step, to be more specific, performing 24-48 hours of freezing drying under the condition of the vacuum degree of 0.06-0.08MPa and the temperature of-40 to-50 DEG C; an extraction step, to be more specific, crushing the dried maggot, sieving, taking 30-80 mesh maggot powder, adding a solvent with the weight of 5-10 times of that of the maggot powder, extracting for 15-40min under the condition of the ultrasonic power of 250-400W and the temperature of 20 to 30 DEG C, then soaking for 12 to 24 hours, and filtering to obtain a filtrate and filter residues; a centrifugal separation step, to be more specific, performing 10-20min of centrifugal separation of the filtrate under the condition of 3000-4500r / min to obtain supernatant, removing a solvent of the obtained supernatant by reduction vaporization; and a collecting step, to be more specific, performing vacuum drying on the maggot oil with the solvent removed to obtain the final product maggot oil. The maggot oil extraction is short in reaction period, reduces the times of extraction, and is simple in process and high in product yield, and the effective components of the obtained maggot oil are not destroyed.

Description

technical field [0001] The invention belongs to the technical field of animal oil extraction, and in particular relates to an ultrasonic-assisted extraction method for extracting grain insect oil and the extracted grain insect oil. Background technique [0002] Grain insects, housefly larvae, belong to Calliphoridae Chrysocephala. As a medicine, it is recorded in "Compendium of Materia Medica" by Li Shizhen in the Ming Dynasty: "Maggots, also known as 'grain worms', can cure children with sores and fever, and are good medicines for treating sores." A high-quality animal protein source, not only rich in protein content, but also very reasonable and complete in amino acid components, and contains a variety of unsaturated fatty acids. [0003] Grain insect oil can be extracted by pressing method, supercritical extraction method and solvent extraction method. The traditional pressing method has the advantages of good oil quality, light color, pure flavor, etc., but the amount ...

Claims

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Application Information

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IPC IPC(8): C11B1/10B01J19/10
Inventor 沈金华尚小磊谢丹金俊张伟
Owner 中海海洋无锡海洋工程装备有限公司
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