CN100358990C - Extraction of aqueous solvent from hickory nut oil - Google Patents

Abstract

The present invention relates to a health product of hickory oil, especially an extraction method of aqueous solvent from hickory nut oil, which can be operated according to the following procedures: firstly, peeled hickory kernel is taken and ground by using weight-to-volume ratio of 1: 3 to 5, and when the hickory kernel is ground and crushed to 60 mesh to 150 mesh or so, serous fluid is removed; secondly, the pH value of the serous fluid is controlled, and the pH value of the ground serous fluid is adjusted to 4.0 to 5.5 with hydrochloric acid or citric acid; thirdly, pyrolysis catalysis is carried out, and the serous fluid with adjusted pH value is put on water bath with the temperature of 50 DEG C to 60 DEG C for pyrolysis catalytic reaction for 1 to 5 hours; fourthly, centrifugal separation is carried, the serous fluid after pyrolysis catalytic reaction is centrifuged on a centrifugal machine with the centrifugal force of 4000 to 6000 revolutions per minute for 15 to 30 minutes, the boiled oil layer attaching on the serous fluid after centrifugal separation is suck out, and the boiled oil obtained is the needed hickory oil. The present invention has the advantages of high oil yield, good oil quality, simple and safe manufacturing process, and low cost.

Description

A kind of aqua extracting method of pecan oil

Technical field

The present invention relates to natural health-care products pecan oil, specifically a kind of aqua extracting method of pecan oil.

Background technology

Semen Caryae Cathayensis formal name used at school juglans mandshurica (Juglams mandshurca Maxlm) hickory.Be the perennial deciduous tree fruit of Juglandaceae Juglans, with cashew nut, fibert, French beans and claim the world four big dry fruits.What the product walnut was maximum is the U.S., China accounts for second, but with regard to wild walnut, all should make number one no matter China is species kind or fruit harvesting amount, it mainly is distributed in provinces such as Shanxi, Shaanxi, Hebei, Henan, Gansu, Xinjiang, Liaoning, Sichuan, Yunnan.

Walnut kernel is nutritious food, and very big medical effectiveness is arranged again.Name is said for physician's LI Shi-Zhen: " the walnut benefiting qi and nourishing blood, moistening the lung and resolving the phlegm, the beneficial gate of vitality, sharp three warmers, warm lung ease constipation, control the cold of insufficiency type breathe heavily cough, the waist pin swells and ache, trusted subordinate's colic, blood profit intestines wind." traditional Chinese medical science thinks that walnut is distinguished the flavor of sweet warm in nature, goes into lung kidney two warps, can replenish kidney essense, brain healthy." Kaibao Bencao " record: " making us of food is fertile strong, profit flesh, black beard and hair for walnut." walnut kernel contains abundant vitamins B ₁, B ₂, multiple element such as zinc, magnesium, it is 14-17% that walnut contains protein, but digestibility reaches 87.2%, these nutritive ingredients all are to keep the essential material of nerve system of human body function, to memory, the handiness that improves neurotransmission all has good effect.While walnut kernel oil-containing 60-70%, unsaturated fatty acids accounts for more than 90%, and wherein oleic acid accounts for 18.62%, and linolic acid accounts for 67.98%, and linolenic acid accounts for 10.35%.To reducing the cholesterol among the Human Serum Albumin, prevent that the formation of atherosclerosis and thrombus has positive effect.And linoleic acid plus linolenic acid is the lipid acid of needed by human, is the precursor compound of PGE PA (timnodonic acid), DHA important meta-bolitess such as (docosahexenoic acids), to keeping HUMAN HEALTH and regulating physiological function important effect is arranged.Therefore, walnut oil has wide development and application prospect as nutritious health care oil.

Traditional method of producing plant seed oil mainly adopts mechanical expression method, solvent extraction method.The mechanical treatment that adopts is limited to seed cytoclasis degree, oil yield is low, and milling process needs kind of a benevolence process parch simultaneously, and this thermal treatment meeting makes the violent sex change of protein, the grouts of carrying behind the oil influence its further utility value, so can not utilize the waste that causes protein resource; Though solvent extraction method oil yield height is easily realized scale operation, in oil and the oil cake dissolvent residual is arranged, edible unfavorable to HUMAN HEALTH, and easy contaminate environment.Therefore press for technology and the method for extracting vegetables oil and vegetable-protein from oilseed simultaneously of developing.Particularly people to nutritive health-care consciousness by seeing enhanced today, intend promoting product deep processing level, produce the green product that satisfies human health, become the common recognition of current society.Yet supercritical CO ₂The biotechnology that fluid extraction technology and application zymin are extracted oil plant has become a current social emerging isolation technique.Because it is realizing that green production is a prerequisite, therefore people's extensive concern extremely.Supercritical CO ₂The vegetables oil oil yield height that fluid extraction technology, zymolysis technique extract, the quality of crude oil of gained is good; Because the treatment condition gentleness, so the cake protein qualitative change after the degreasing is low, utilizability is good, and oil is easily separated with grouts (slag).But supercritical CO ₂Fluid extraction is owing to expensive device investment and maintenance cost that high pressure brought, to such an extent as to medium and small sized enterprises' incompetence is used.The used zymin of enzymolysis costs an arm and a leg simultaneously, therefore can not be widely used.Intelligence is in less investment with great concentration so force worker that we are engaged in the agriculture and forestry product deep processing, and cost is low, instant effect and the simple technical study of technology.

Summary of the invention

The object of the present invention is to provide the aqua extracting method of a kind of oil yield height, pecan oil that oil quality is good.

For achieving the above object, the technical solution used in the present invention is:

Select for use disease-free, free of contamination Semen Caryae Cathayensis through decortication, wear into oar liquid, the pH value of reconciling oar liquid carries out the pyrolysis catalytic reaction then, carries out the last sucking-off edible vegetable oil of centrifugation when walnut oil is separated out.Edible vegetable oil is through obtaining pure nutritive health-care pecan oil after the refining.

A kind of aqua extracting method of pecan oil can be operated as follows,

1) Semen Caryae Cathayensis of getting decortication is 1 with the weightmeasurement ratio of feed liquid: the moisture content of 3-5 grinds, and walnut kernel is ground to the 60-150 order, gets rid of slurries;

2) pH value of conciliation oar liquid: will grind good slurries and transfer PH to 4.0-5.5 with hydrochloric acid or citric acid;

3) pyrolysis catalytic: it is pyrolysis catalytic reaction 1-5 hour in 50-60 ℃ the water-bath that the slurries that will mix up PH are put into temperature;

4) centrifugation: pyrolysis catalytic reacted good slurries and at centrifugal force be on 4000-6000 rev/min the whizzer, centrifugal 15-30 minute; With the boiled oil layer sucking-off that is attached to after the centrifugation on the slurries face, obtain edible vegetable oil, be required pecan oil.

The above-mentioned edible vegetable oil that obtains can obtain purified refining pecan oil through vacuum hydro-extraction.

The present invention has following advantage:

1. technical process is simple, cost is low.Raw material need not be dry, promptly obtains edible vegetable oil through the pyrolysis catalytic reaction by centrifugation, and energy consumption is few; Separating oil and protein have shortened operational path simultaneously; Water is made " solvent ", and wide material sources reduce cost, and no inflammable, explosive danger has reduced environmental pollution again;

2. technology is simple and safe.Operational reaction conditions gentleness of the present invention, cycle weak point.

3. oil quality is good.Grease purity height of the present invention, phospholipids content is low, look shallow quality better, product keeps original color.

4. effect is good.The aqua method oil extracting process is comparatively special in oil prodution industry, it be utilize that non-oil substances in the oil plant is different to the avidity of oil and water, the proportion of oil and water is different and carry out isolating.The present invention be water as " solvent ", from walnut kernel, extract grease and albumen; Its mechanism of action is that the grease of walnut kernel and albumen and other separating substances are come, and the most of protein in the walnut kernel all is present in the proteoplast in the cell, grease then with superfine little droplet distribution in the colloid network structure of protein and other materials.Therefore, the auxiliary pyrolytical condition of heating is to be used to activate self enzymatic reaction, it is loose to help cell tissue like this, and protein decomposes to impel, emulsification, frees thereby the catalysis grease is free, then, finally reach the purpose of extracting the high-quality walnut oil by the gravity centrifugal separation method.It is the supercritical CO that continues that aqua is carried oil ₂Another new breakthrough after fluid extraction method, the water enzyme extraction method, aqua is carried oil will produce far-reaching influence to oil prodution industry.

5. of far-reaching significance.The present invention is the nutritive health-care pecan oil that goes to obtain the maintenance items quality fully by green production, the present invention has striden into a new step for the green production of forest products dry fruit product deep processing again, so it has played an effect of getting ahead of others really for the green production that instructs follow-up Forest products deep processing.The present invention produces also and develops nutritive health-care pecan oil, will enjoy favor, for improving people's life, promoting healthy, foreign exchange earning etc. to create higher economic benefit and social benefit; Thereby better make the width of cloth in human, benefit society.

Embodiment

Embodiment 1

A kind of aqua extracting method of pecan oil can be operated as follows,

1) select for use disease-free, the decortication of free of contamination Semen Caryae Cathayensis, the Semen Caryae Cathayensis of getting decortication is that 1: 3 moisture content grinds with the weightmeasurement ratio of feed liquid, and walnut kernel is ground to the 60-70 order, gets rid of slurries;

2) pH value of conciliation oar liquid: will grind good slurries and transfer PH to 4.0 with hydrochloric acid or citric acid;

3) pyrolysis catalytic: it is pyrolysis catalytic reaction 5 hours in 50 ℃ the water-bath that the slurries that will mix up PH are put into temperature;

4) centrifugation: pyrolysis catalytic reacted good slurries and at centrifugal force be on 4000 rev/mins the whizzer, centrifugal 30 minutes; With the boiled oil layer sucking-off that is attached to after the centrifugation on the slurries face, obtain edible vegetable oil, be required pecan oil;

5) edible vegetable oil that is obtained is obtained purified refining pecan oil through vacuum hydro-extraction.

Embodiment 2

A kind of aqua extracting method of pecan oil can be operated as follows,

1) select for use disease-free, the decortication of free of contamination Semen Caryae Cathayensis, the Semen Caryae Cathayensis of getting decortication is that 1: 5 moisture content grinds with the weightmeasurement ratio of feed liquid, and walnut kernel is ground to the 100-120 order, gets rid of slurries;

2) pH value of conciliation oar liquid: will grind good slurries and transfer PH to 5.5 with hydrochloric acid or citric acid;

3) pyrolysis catalytic: it is pyrolysis catalytic reaction 1 hour in 60 ℃ the water-bath that the slurries that will mix up PH are put into temperature;

4) centrifugation: pyrolysis catalytic reacted good slurries and at centrifugal force be on 6000 rev/mins the whizzer, centrifugal 30 minutes; With the boiled oil layer sucking-off that is attached to after the centrifugation on the slurries face, obtain edible vegetable oil, be required pecan oil;

5) edible vegetable oil that is obtained is obtained purified refining pecan oil through vacuum hydro-extraction.

Embodiment 3

A kind of aqua extracting method of pecan oil can be operated as follows,

1) select for use disease-free, the decortication of free of contamination Semen Caryae Cathayensis, the Semen Caryae Cathayensis of getting decortication is that 1: 4 moisture content grinds with the weightmeasurement ratio of feed liquid, and walnut kernel is ground to the 140-150 order, gets rid of slurries;

2) pH value of conciliation oar liquid: will grind good slurries and transfer PH to 5 with hydrochloric acid or citric acid;

3) pyrolysis catalytic: it is pyrolysis catalytic reaction 3 hours in 55 ℃ the water-bath that the slurries that will mix up PH are put into temperature;

4) centrifugation: pyrolysis catalytic reacted good slurries and at centrifugal force be on 5000 rev/mins the whizzer, centrifugal 20 minutes; With the boiled oil layer sucking-off that is attached to after the centrifugation on the slurries face, obtain edible vegetable oil, be required pecan oil;

5) edible vegetable oil that is obtained is obtained purified refining pecan oil through vacuum hydro-extraction.

Claims (2)

1. the aqua extracting method of a pecan oil is characterized in that: operation as follows,

1) Semen Caryae Cathayensis of getting decortication is 1 with the weightmeasurement ratio of feed liquid: the moisture content of 3-5 grinds, and makes walnut kernel grind the order to 60-150, gets rid of slurries;

2) pH value of conciliation slurries: will grind good slurries and transfer PH to 4.0-5.5 with hydrochloric acid or citric acid;

3) pyrolysis catalytic: it is pyrolysis catalytic reaction 1-5 hour in 50-60 ℃ the water-bath that the slurries that will mix up PH are put into temperature;

4) centrifugation: pyrolysis catalytic reacted good slurries and at centrifugal force be on 4000-6000 rev/min the whizzer, centrifugal 15-30 minute; With the boiled oil layer sucking-off that is attached to after the centrifugation on the slurries face, obtain edible vegetable oil, be required pecan oil.

2. according to the aqua extracting method of the described pecan oil of claim 1, it is characterized in that: the edible vegetable oil that is obtained is obtained purified refining pecan oil through vacuum hydro-extraction.