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Extraction of hickory nut oil from water enzyme

The technology of pecan oil and water enzyme is applied in the direction of fat oil/fat production, fat production, etc., and achieves the effect of simple and safe process, light color and good application effect.

Inactive Publication Date: 2008-10-22
SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But enzymatic extraction of walnut oil has not yet been reported in this regard

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A method for hydroenzyme extraction of pecan oil, the operation steps are as follows,

[0025] 1) Refining: Pour water and peeled hickory kernels into a colloid mill according to the weight-to-volume ratio of the feed liquid to be 1:2 and pulverize them, pulverize the walnut kernels to 60-70 mesh, and remove the slurry;

[0026] 2) adjust the pH of the slurry: adjust the pH of the ground slurry to 4.0 with citric acid;

[0027] 3) Activate enzyme: get the compound cellulase of 0.025% dehulled pecan kernel weight, be dissolved in the citric acid-sodium citrate buffer solution of 0.5mol / liter pH4.0 of 50ml, activate 15 minutes in 50 ℃ of water baths ;

[0028] 4) Enzymolysis: Pour the activated cellulase buffer solution into the walnut kernel slurry, and perform enzymolysis on a water bath at a temperature of 60° C. for 10 hours;

[0029] 5) Oil extraction by centrifugation: centrifuge the enzymatic solution at 4000 rpm for 30 minutes; after centrifugation, suck out the...

Embodiment 2

[0037] A method for hydroenzyme extraction of pecan oil, the operation steps are as follows,

[0038] 1) Refining: pour water and peeled hickory kernels into a colloid mill according to the weight-to-volume ratio of the feed liquid to be 1:3, and pulverize the walnut kernels to 130-150 mesh, and remove the slurry;

[0039] 2) adjusting PH of the slurry: adjusting the PH of the ground slurry to 5 with hydrochloric acid;

[0040] 3) Enzyme activation: take 1.2% compound cellulase by weight of peeled pecan kernels, dissolve in 60ml of 0.45mol / liter acetic acid-sodium acetate buffer solution with pH 5.0, and activate in a water bath at 60°C for 8 minutes;

[0041] 4) Enzymolysis: Pour the activated cellulase buffer solution into the walnut kernel slurry, and perform enzymolysis on a water bath at a temperature of 60° C. for 3 hours;

[0042] 5) Oil extraction by centrifugation: centrifuge the enzymatic solution at 6000 rpm for 15 minutes; after centrifugation, suck out the upper ...

Embodiment 3

[0049] A method for hydroenzyme extraction of pecan oil, the operation steps are as follows,

[0050]1) Refining: Pour water and peeled hickory kernels into a colloid mill according to the weight-to-volume ratio of the feed liquid to be 1:4, and pulverize the walnut kernels to 80-100 mesh, and remove the slurry;

[0051] 2) adjust the pH of the slurry: adjust the pH of the ground slurry to 5.5 with citric acid;

[0052] 3) Enzyme activation: take 2% compound cellulase by weight of peeled pecan kernels, dissolve in 100 ml of 0.55 mol / liter acetic acid-sodium acetate buffer solution with pH 5.6, and activate it in a water bath at 55° C. for 12 minutes;

[0053] 4) Enzymolysis: Pour the activated cellulase buffer solution into the walnut kernel slurry, and perform enzymolysis on a water bath at a temperature of 50° C. for 8 hours;

[0054] 5) Oil extraction by centrifugation: centrifuge the enzymatic solution at 5000 rpm for 25 minutes; after centrifugation, suck out the upper l...

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Abstract

The invention relates to the pecan oil which is a kind of natural health product, it is essentially an aqueous enzymatic extraction method of the pecan oil, the following is the process: (1) the peeled pecan kernel is milled according to the ratio of the weight of the material and the volume of the liquid is 1:3-5, the pecan kernel is milled approximately to 60-150 sieve number, and the juice is put out. (2) The pH of the juice will be adjusted: the pH of the juice from the milling process will be adjusted to 4.0-5.5 with chlorhydric acid and citric acid. (3) The process of thermolysis catalyzing: put the juice in the water bath, the temperature of which is 50-60DEG C,to thermolysis catalyze it for 1-5h,after the pH of it has been adjusted (4) Centrifuging to isolate it: the juice or above will be centrifuged at 4000-6000r / min for 15-3o minutes, the boiled oil which is at the super layer of the juice after the isolation will be exsucted out, and the boiled oil is just the the pecan oil that we need. The excellence of the method is: the oil yield and the oil quality are high, the technology is simple and secure, tand the cost is very lower.

Description

technical field [0001] The invention relates to natural health product hickory oil, in particular to a method for extracting hickory oil with water enzyme. Background technique [0002] The scientific name of pecan is Juglams mandshurca Maxlm (Juglams mandshurca Maxlm). It is the fruit of a perennial deciduous tree of the Juglandaceae walnut, and is called the world's four major dried fruits together with cashew nuts, hazelnuts, and lentils. The United States produces the most walnuts, and my country occupies the second place. However, as far as wild walnuts are concerned, my country should rank first in terms of species and fruit harvest. They are mainly distributed in Shanxi, Shaanxi, Hebei, Henan, Gansu, Xinjiang, Liaoning, Sichuan, Yunnan and other provinces. Walnut is an excellent dried nut food that nourishes qi and blood for the human body, warms the intestines and nourishes the kidney, relieves cough and moistens the lungs, black hair and strengthens the brain. Wal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B1/00
Inventor 王力华杨柏珍韩桂云谢宏
Owner SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI
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