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Technology for extracting beta-molting hormone from tussah in solvent-assisted high-voltage pulsed electric field

A high-voltage pulsed electric field and ecdysone technology, which is applied in the fields of steroids and organic chemistry, can solve the problems of long extraction time, high extraction temperature, and high cost, and achieve the effects of short extraction time, low extraction temperature, and improved extraction rate

Inactive Publication Date: 2013-06-05
TIANJIN BOHAI VOCATIONAL TECHN COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional alcohol extraction method has the problems of high cost and unsatisfactory extraction yield
Moreover, when the traditional alcohol extraction method is used for continuous extraction, because the extraction temperature is too high and the extraction time is too long, the β-ecdysone is easily denatured, resulting in a high and low extraction rate, which is very unstable.
After searching, there is no development and research on the process of rapid extraction of β-ecdysone from tussah silkworm by high-voltage pulsed electric field method

Method used

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  • Technology for extracting beta-molting hormone from tussah in solvent-assisted high-voltage pulsed electric field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A solvent-assisted high-voltage pulsed electric field extraction process for beta-ecdysone in tussah silkworm, the steps of the process are:

[0034] ⑴ Raw material pretreatment:

[0035] Choose age-appropriate tussah silkworms, choose 5-year-old tussah silkworms in this embodiment, the tussah silkworms produced in Dandong City, Liaoning Province belong to the tussah silkworm species, and the variety is "Kangda". The tussah silkworms are deep-frozen, then freeze-dried, and the dried tussah silkworms are crushed with a pulverizer, passed through a 40-mesh sieve, put into containers and stored in a cool and dry place for later use.

[0036] ⑵. Rough mention:

[0037] Weigh 100g of tussah silkworm powder, add 1500g of 30% ethanol solution at a material-to-liquid ratio of 1:15 at a temperature of 40°C, extract for 2 hours, filter and concentrate under reduced pressure for 30 minutes at a pressure of 20kpa and a temperature of 45°C, and then use diethyl ether 45g to remov...

Embodiment 2

[0041] A solvent-assisted high-voltage pulsed electric field extraction process for beta-ecdysone in tussah silkworm, the steps of the process are:

[0042] ⑴ Raw material pretreatment:

[0043] Choose age-appropriate tussah silkworms, choose 5-year-old tussah silkworms in this embodiment, the tussah silkworms produced in Dandong City, Liaoning Province belong to the tussah silkworm species, and the variety is "Kangda". The tussah silkworms are deep-frozen, then freeze-dried, and the dried tussah silkworms are crushed with a pulverizer, passed through a 40-mesh sieve, put into containers and stored in a cool and dry place for later use.

[0044] ⑵. Rough mention:

[0045] Weigh 100g of tussah silkworm powder, add 1300g of 30% ethanol solution at a material-to-liquid ratio of 1:13 at a temperature of 35°C, extract for 2 hours, filter and concentrate under reduced pressure for 30 minutes at a pressure of 30kpa and a temperature of 40°C; Remove lipid compounds; then extract wi...

Embodiment 3

[0049] A solvent-assisted high-voltage pulsed electric field extraction process for beta-ecdysone in tussah silkworm, the steps of the process are:

[0050] ⑴. Raw material pretreatment:

[0051] Choose age-appropriate tussah silkworms, choose 5-year-old tussah silkworms in this embodiment, the tussah silkworms produced in Dandong City, Liaoning Province belong to the tussah silkworm species, and the variety is "Kangda". The tussah silkworms are deep-frozen, then freeze-dried, and the dried tussah silkworms are crushed with a pulverizer, passed through a 40-mesh sieve, put into containers and stored in a cool and dry place for later use.

[0052] ⑵. Rough mention:

[0053] Weigh 100g of tussah silkworm powder, add 1700g of 30% ethanol solution at a material-to-liquid ratio of 1:17 at a temperature of 45°C, extract for 2 hours, filter and concentrate under reduced pressure for 40 minutes at a pressure of 25kpa and a temperature of 45°C. , and then remove lipid compounds wit...

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Abstract

The invention relates to a technology for extracting beta-molting hormone from tussah in a solvent-assisted high-voltage pulsed electric field. The technology is characterized by comprising the following steps of: (1) pretreatment of raw materials; (2) crude extraction; (3) extraction in the high-voltage pulsed electric field: adding 30% of acetic acid solution according to a ratio of feed to liquid being 1:(18-22), placing the mixed liquid in the high-voltage pulsed electric field, and extracting for 1-2 hours at 35-45 DEG C, the electric field intensity of 8-10kv.cm<-1> and pulse number of 8-12 to obtain an extracting solution; and (4) purification: filtering the extracting solution under reduced pressure, and separating and extracting with macroporous resin to obtain the beta-molting hormone. The technology for extracting the beta-molting hormone from the tussah in the solvent-assisted high-voltage pulsed electric field is low in extraction temperature and short in extraction time, ensures the stability of beta-molting hormone extraction and has the advantages of time saving, high efficiency and stability; and simultaneously the yield of the beta-molting hormone is obviously improved.

Description

technical field [0001] The invention relates to the technical field of functional food development using tussah as raw materials, in particular to a solvent-assisted high-voltage pulse electric field extraction process for beta-ecdysone in tussah. Background technique [0002] In the 21st century, insects will become the third largest source of protein after microorganisms and cell organisms. Insect functional food is a hot spot in the world's food industry in the 21st century, and its nutritional and functional properties have been unanimously recognized by experts at home and abroad. [0003] Tussah is a kind of silk insect with high economic value. China is the birthplace of tussah. The output of tussah accounts for about 90% of the world, and it has always maintained the status of the world's largest tussah industry. There are four production areas in my country, among which the annual output of tussah silkworms in Liaoning production area is about 4 million tons, accou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07J9/00
Inventor 王秀玲王朝臣
Owner TIANJIN BOHAI VOCATIONAL TECHN COLLEGE
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