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Industrial hempseeds isolated protein powder and preparation method thereof

A technology of hemp seed and industrial use, applied in the preparation of protein isolate powder, industrial hemp seed protein isolate powder and its preparation field, can solve the problems of low protein content, many impurities in the powder, low nutritional value, etc., to achieve easy digestion Effect of absorbing, reducing production cost and improving production efficiency

Inactive Publication Date: 2009-12-02
THE QUARTERMASTER EQUIPMENT RESEARCH INSTITUTE OF THE GENERAL LOGISITIC DEPARTME +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the protein powder prepared by the present invention has low protein content, low nutritional value, many impurities in the powder and is difficult to remove, which is not conducive to the application of food industry raw materials and protein additives.
[0005] The method of producing protein isolate powder with protein purity ≥ 90% from industrial hemp seeds has not been reported so far

Method used

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  • Industrial hempseeds isolated protein powder and preparation method thereof
  • Industrial hempseeds isolated protein powder and preparation method thereof
  • Industrial hempseeds isolated protein powder and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] The hemp seeds for industrial use are screened to remove impurities, then graded, and then mechanically hulled and shelled; the hemp seeds obtained after shelling are subjected to carbon dioxide supercritical extraction, extracted at 43°C and 34MPa for 2 hours, and the extracted oil is extracted and the extracted product is crushed , extracted under the above conditions for another 2 hours to obtain industrial hemp seed low-temperature protein meal after oil extraction. In the low-temperature protein meal of hemp seeds for industrial use, the residual oil rate is 1.5%. The obtained low-temperature protein meal is pulverized by a pulverizer, passed through a 60-mesh sieve, and 10 kg of the sieved protein meal is taken, added to 100 kg of warm water at 50°C, stirred evenly, and the pH value is adjusted to 9.5, keep stirring for 15 minutes, vacuum filter to remove insoluble impurities, and obtain crude protein solution. Adjust the pH value of the crude protein solution to...

Embodiment 2

[0056] The hemp seeds for industrial use are screened to remove impurities, then graded, and then mechanically hulled and shelled; the hemp seeds obtained after shelling are subjected to carbon dioxide supercritical extraction, extracted at 43°C and 34MPa for 2 hours, and the extracted oil is extracted and the extracted product is crushed , extracted under the above conditions for another 2 hours to obtain industrial hemp seed low-temperature protein meal after oil extraction. In the low-temperature protein meal of hemp seeds for industrial use, the residual oil rate is 1.2%. The obtained low-temperature protein meal is pulverized with a pulverizer, passed through an 80-mesh sieve, and 10 kg of the protein meal after sieving is taken, added to 80 kg of warm water at 45° C., stirred evenly, and the pH value is adjusted to 8. Insulated and stirred for 25 minutes, vacuum filtered to remove insoluble impurities, and crude protein solution was obtained. Adjust the pH value of the ...

Embodiment 3

[0059] The hemp seeds for industrial use are screened to remove impurities, then graded, and then mechanically hulled and shelled; the hemp seeds obtained after shelling are subjected to carbon dioxide supercritical extraction, extracted at 43°C and 34MPa for 2 hours, and the extracted oil is extracted and the extracted product is crushed , extracted under the above conditions for another 2 hours to obtain industrial hemp seed low-temperature protein meal after oil extraction. In the low-temperature protein meal of hemp seeds for industrial use, the residual oil rate is 1.8%. The obtained low-temperature protein meal is pulverized by a pulverizer, passed through a 100-mesh sieve, and 10 kg of the sieved protein meal is taken, added to 110 kg of warm water at 48° C., stirred evenly, and adjusted to pH with a 28% NaOH solution by mass percent. 10. Stir with heat preservation, remove insoluble impurities by vacuum filtration, and obtain crude protein solution. Adjust the pH valu...

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Abstract

The invention discloses an industrial hempseeds isolate protein powder of which the protein purity is above 92%. The invention also provides a preparation method of the industrial hempseed isolated protein powder, comprising the following steps: (1) purifying and decorticating industrial hempseeds according to grading, and obtaining low temperature protein meal by CO2 supercritical fluid extraction; (2) dissolving the desolventized protein meal in alkaline liquor, adjusting the PH value to 8-10 to obtain protein emulsion, removing insoluble residue and fibre by filtering; (4) taking supernatant liquor and adding acid liquor to adjust the PH value to 4.5-5, centrifugalizing to take the precipitation; (5) adding alkaline liquor to adjust the PH value to 6-7, obtaining the industrial hempseeds isolate protein powder by spray drying. The invention has the advantages of simple process, low cost and high protein extraction efficiency. The produced industrial hempseeds isolate protein powder has high nutritional value and a wide application prospect.

Description

technical field [0001] The invention relates to a preparation method of protein isolate powder, more specifically, the invention relates to an industrial hemp seed protein isolate powder and a preparation method thereof, belonging to the field of plant protein purification. Background technique [0002] Hemp is one of the earliest crops in my country. Archaeological data show that my country is the first area to domesticate, plant and utilize industrial hemp, about 5000-6000 years ago. Cannabis has a long history of cultivation, mainly including industrial hemp for fiber, medicinal industrial hemp and wild industrial hemp. Cannabis has different titles in different regions of my country, such as hemp, thread hemp, hemp, cold hemp, and quai hemp. Internationally, varieties with tetrahydrocannabinol (THC) content lower than 0.3% are called industrial hemp (Industrial Hemp), and those higher than 0.3% are called medicinal and drug cannabis. Industrial hemp has historically be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23J1/14A23L1/305A23L33/185
Inventor 张建春卢蓉蓉何锦风陈天鹏张华钱平张涛
Owner THE QUARTERMASTER EQUIPMENT RESEARCH INSTITUTE OF THE GENERAL LOGISITIC DEPARTME
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