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Method for extracting protein, dietary fiber and peony seed oil from peony seeds or peony meal

A technology of peony seed meal and dietary fiber, applied in protein food ingredients, protein composition of vegetable seeds, food preparation, etc., can solve the problems of unfavorable temperature, good quality of oil, adverse effect of oil quality, unreported process, etc. Achieve the effect of excellent quality, low equipment requirements, and efficient and simple methods

Active Publication Date: 2015-11-18
TONGLING RUIPU PEONY IND DEV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Chinese patent literature patent number 201210270846.8 (publication number CN102746940A) introduces a method for extracting peony seed oil with water. The extraction kettle involved in the inventive method has a pressure of 5-30Mpa and a temperature of 100-300°C, which consumes a lot of energy and the temperature Higher is not conducive to maintaining good quality of oil
Chinese patent literature patent number is 200910310142.7 (publication number CN102071096A) and Chinese patent literature patent number is 200910310143.1 (publication number CN102071097A) all introduces a kind of preparation method of peony seed oil, these two kinds of methods all adopt pressing method, the oil that obtains needs After a series of steps such as filtration, hydration, decolorization, refiltration, and deodorization, the steps are cumbersome, and a certain amount of alkali needs to be added in the hydration process. The temperature of the decolorization and deodorization process is high, which will have an adverse effect on the quality of the oil.
Chinese patent literature patent number 20101098582.0 (publication number CN102277229A) introduces a processing method of peony seed oil, which requires roasting peony seeds, and the oil yield is not high
[0006] Chinese patent literature patent number 201310077170.5 (publication number CN103113977A) introduces a method for synchronously preparing peanut oil and peanut peptide by aqueous enzymatic method. wall, and the prepared peanut peptide is obtained by directly spray-drying the aqueous phase, which has the problem of low purity of the product
[0007] The present invention takes the three-step enzymatic hydrolysis as the core, and simultaneously obtains peony seed oil, peony seed protein and peony seed fiber in combination with processes such as demulsification, protein precipitation, and slag washing. This technological process has not been reported, and the enzymatic method is applied to peony seeds Oil extraction has not been reported

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Crush the raw materials, pass through a 40-mesh sieve, take 50g of seed powder, add 250ml of water, mix to form a slurry for later use, adjust the pH of the slurry to 4.5 with 1mol / L hydrochloric acid, add 15mL of cellulose-pectin compound enzyme, and stir and extract at 50°C 2h, get enzymolysis solution A, use 1mol / L sodium hydroxide to adjust the pH of enzymolysis solution A to 7, add 6mL α-medium temperature amylase, stir and extract at 70°C for 0.5h, get enzymolysis solution B, use 1mol / L sodium hydroxide Adjust the pH of enzymolysis solution B to 8.5, add 1g of alkaline protease, stir and extract at 60°C for 2 hours to obtain the final enzymolysis solution, centrifuge the final enzymolysis solution at 3000r / min for 20min to obtain free oil A, emulsion layer A, Protein hydrolyzate and slag;

[0023] Freeze the emulsified layer A at -20°C for 20 hours, then thaw it in a water bath at 40-50°C for 3 hours to obtain free oil B and emulsified layer B; then perform second...

Embodiment 2

[0029] Crush the raw materials, pass through a 40-mesh sieve, take 1000g of seed powder, add 4L of water, and mix to form a slurry for later use. Use 1mol / L hydrochloric acid to adjust the pH of the slurry to 4.5, add 30g of cellulose-pectin complex enzyme, stir and extract at 50°C for 2.5h to obtain the enzymatic solution A, adjust the pH of the enzymatic solution A to 7 with 1mol / L sodium hydroxide, add 20g of α-medium-temperature amylase, stirring and extracting at 70°C for 1 hour to obtain enzymatic solution B, adjusting the pH of enzymatic solution B to 8.5 with 1mol / L sodium hydroxide, adding 50g of alkaline protease, stirring and extracting at 60°C for 2 hours to obtain the final enzyme For the hydrolyzate, centrifuge the final enzymatic hydrolyzate at 3000r / min for 20min to obtain free oil A, emulsified layer A, protein hydrolyzate and slag;

[0030] Freeze the emulsified layer A at -20°C for 20 hours, then thaw it in a water bath at 40-50°C for 3 hours to obtain free ...

Embodiment 3

[0035] Crush the raw materials, pass through a 40-mesh sieve, take 500g of seed powder, add 2.5L of water, and mix to form a slurry for later use. Use 1mol / L hydrochloric acid to adjust the pH of the slurry to 4.5, add 45g of cellulose-pectin complex enzyme, stir and extract at 50°C for 2.5h to obtain enzymatic solution A, adjust the pH of the enzymatic solution A to 7 with 1mol / L sodium hydroxide, add 8g of α-medium-temperature amylase, stirring and extracting at 70°C for 1 hour to obtain enzymatic solution B, adjusting the pH of enzymatic solution B to 8.5 with 1mol / L sodium hydroxide, adding 35g of alkaline protease, stirring and extracting at 60°C for 2 hours to obtain the final enzyme Solution. Centrifuge the final enzymatic solution at 3000r / min for 20min to obtain free oil A, emulsified layer A, protein hydrolyzate and slag;

[0036] Freeze the emulsified layer A at -20°C for 20 hours, then thaw it in a water bath at 40-50°C for 3 hours to obtain free oil B and emulsif...

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Abstract

The invention discloses a method of extracting protein and dietary fibers from peony seeds or peony seed meal. The method includes the steps of 1, pretreating; 2, performing enzymolysis; 3, centrifuging; 4, demulsifying; 5, recovering protein; 6, washing residue. After the pretreatment of raw materials, final enzymatic hydrolysate is obtained by means of three-step enzymolysis; after centrifuging of the final enzymatic hydrolysate, free oil, an emulsion layer, protein hydrolysate and residue are obtained. The free oil is peony seed oil. After isoelectric precipitation, the protein hydrolysate is refrigerated and dried into peony seed protein powder. The residue is washed and dried so that peony seed dietary fibers are obtained. A certain amount of oil can also be recovered in the demulsifying and residue washing steps. The method has the advantages that peony seeds are utilized comprehensively, the raw materials need not be dried, equipment are less demanded, operation is simple, no solvent residue occurs, no environmental pollution occurs, oil yield is high, oil quality is good, protein yield is high, and swelling property of the dietary fibers is good.

Description

technical field [0001] The invention relates to a method for extracting protein, dietary fiber and peony seed oil from peony seeds or peony seed dregs, belonging to the field of agricultural product processing and comprehensive utilization of by-products. Background technique [0002] Peony is a shrub of Paeoniaceae of Ranunculaceae, which is widely planted in various parts of my country. The annual output of peony seeds is tens of thousands of tons. It is rich in resources and has great potential for development. In recent years, the development and utilization of peony seeds have received widespread attention. Numerous studies have shown that peony seeds have high nutritional value, with an oil content of about 29-34% and a protein content of about 18-22%. On March 22, 2011, peony seeds were approved by the Ministry of Health as a new resource food - "Announcement of the Ministry of Health on Approving Ingot Maple Seed Oil and Peony Seed Oil as New Resource Foods" (2011 No...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B1/00C11B1/04A23J1/14A23L1/308A23L33/22
Inventor 彭瑶瑶聂荣京赵孝庆王洪新高传忠苏建辉
Owner TONGLING RUIPU PEONY IND DEV
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