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Separation method for coproducing macadimia nut polysaccharide and albumen

A separation method and fructose polysaccharide technology, applied in the field of plant extraction, can solve the problems of low utilization value of oil meal, difficult to obtain mechanically, and not used, and achieve the effects of good biological activity and functional properties, avoiding denaturation, and being easy to implement.

Inactive Publication Date: 2015-02-11
JINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, most of the macadamia nut oil was produced by hot pressing process, and the produced oil meal was easy to change color, and the biologically active substances such as polysaccharides and proteins contained in it had also been denatured by heat. use
[0004] The recently disclosed CN 103652313 A and CN 103719531 A both relate to the production method of extracting protein from macadamia nut oil meal after low-temperature oil extraction, but they have not utilized the large amount of polysaccharide contained in it; and the two patents involved It is difficult to obtain some machinery related to unit operations such as dispersion and crushing

Method used

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  • Separation method for coproducing macadimia nut polysaccharide and albumen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) Preparation of oil meal: crush shelled macadamia nut kernels through a 10-mesh sieve, weigh 10Kg and place it in the barrel of a 15L extraction kettle, and make it dry at 45°C, 35MPa, CO 2 The macadamia nut oil was extracted under the condition of a flow rate of 15L / h.Kg nut flour. After the extraction, the oil meal was taken out and the CO 2 Fully volatilize to obtain 4Kg of oil-free macadamia nut oil meal;

[0042] (2) Soaking in alkaline solution: crush the oil-free macadamia nut oil meal obtained in step (1), pass through a 10-mesh sieve, add 36Kg of water and stir evenly, then adjust the pH value to 9.2 with 1mol / L NaOH solution, and put it under room temperature Stand still for 12 hours, stir 3 times during this period, and then use a colloid mill to homogenize once to obtain a homogeneous solution;

[0043] (3) Extraction: the homogeneous solution obtained in step (2) is filtered on a bag filter to obtain a clarified extract;

[0044] (4) Adjust the pH valu...

Embodiment 2

[0050](1) Preparation of oil meal: crush shelled macadamia nut kernels through a 100-mesh sieve, weigh 20Kg and place it in the barrel of a 30L extraction kettle, make it in n-butanol as a subcritical solvent, at 0.5MPa, 40°C, The macadamia nut oil was extracted under subcritical conditions with an extraction time of 5 minutes, and the extraction was repeated 3 times. After the oil was extracted, the oil meal was taken out to fully volatilize the n-butane to obtain 6Kg of oil-free macadamia oil meal;

[0051] (2) Soaking in alkaline solution: crush the oil-free macadamia nut oil meal obtained in step (1), pass through a 50-mesh sieve, add 70Kg1N NaOH solution, stir evenly (pH is 15), let stand at room temperature for 18 hours, and stir during the period 4 times, then use a colloid mill to homogenize once to obtain a homogeneous solution;

[0052] (3) Extraction: the homogeneous solution obtained in step (2) is filtered on a plate and frame filter to obtain a clarified extract;...

Embodiment 3

[0059] (1) Preparation of oil meal: crush shelled macadamia nut kernels through a 40-mesh sieve, weigh 5Kg and place it in the barrel of a 10L extraction kettle, make it in n-propane as a subcritical solvent, extract at 0.5MPa, 40°C, The macadamia nut oil was extracted under subcritical conditions for 5 minutes, and the extraction was repeated 3 times. After the oil was extracted, the oil meal was taken out to fully volatilize the n-butane to obtain 1Kg of oil-free macadamia oil meal;

[0060] (2) Soaking in alkaline solution: crush the oil-free macadamia nut oil meal obtained in step (1), pass through a 100-mesh sieve, add 10Kg of water, stir evenly, and then adjust the pH value to 10 with 1mol / L NaOH solution. Stand still for 24 hours, stir 5 times during this period, and then use a colloid mill to homogenize once to obtain a homogeneous solution;

[0061] (3) Extraction: the homogeneous solution obtained in step (2) was centrifuged at 6000rpm for 15 minutes;

[0062] (4) A...

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Abstract

The invention belongs to the field of plant extraction and particularly relates to a separation method for coproducing macadimia nut polysaccharide and albumen. The method mainly comprises the following steps: extracting macadimia nut grease at low temperature by using a supercritical or subcritical solvent; then, soaking oil meal by using alkaline water; filtering or centrifugalizing the obtained homogenate to remove impurities; adjusting the pH to a protein isoelectric point; then, centrifugalizing to obtain a precipitate which is coarse albumen; then, after repeatedly washing by using a precipitate solvent, carrying out low-temperature spraying and drying to obtain the macadimia nut albumen; and carrying out steps such as concentration, spraying and drying on the supernate to produce macadimia nut polysaccharide. The production process is continuous and compact, easy to implement, and high in technical raw material utilization ratio, product yield and purity.

Description

technical field [0001] The invention belongs to the field of plant extraction, and in particular relates to a separation method for co-producing macadamia nut polysaccharide and protein. Background technique [0002] Macadamia ternifolia F.Muell is a dicotyledonous evergreen tree of the Proteaceae family (Proteaceae), native to the subtropical rainforests of Queensland and New South Wales, Australia. Its nuts have high oil content and unique functions, and are known as the "Queen of Dried Fruits". In addition to being mainly used as dried fruit, nuts are used in some cosmetics, health care products because of their high oil content (about 80% of the weight of the nuts), and their nutritional and health effects such as anti-oxidation, prevention and reduction of cardiovascular diseases. It plays an irreplaceable role in food and other industries, so there is still a certain amount of macadamia nuts used for oil processing every year. [0003] During the processing of macada...

Claims

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Application Information

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IPC IPC(8): A23J1/14C07K1/30C08B37/00
CPCY02P20/54
Inventor 黄雪松
Owner JINAN UNIVERSITY
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