CN106635412A - Processing and separation method of oil and application thereof - Google Patents

Abstract

The invention discloses an oil processing and separation method, which is characterized in that it comprises the following steps: Step 1, separation: the crude oil is subjected to separation treatment by short-range molecular distillation to obtain high boiling range oil and low boiling range oil; wherein, the conditions for separation treatment It is: the ratio of the sampling rate to the evaporation area is in the range of 10-100L/(h*m ² ), the evaporation temperature is in the range of 100-200°C, the scraper speed is in the range of 100-300rad/min, and the condensation temperature is in the range of 0 ~35°C; step 2, refining: deacidify the low boiling range oil obtained in step 1 to obtain a colorless, clear and transparent high-quality cosmetic and medicinal oil; degumming the high boiling range oil obtained in step 1, namely Get food grade oil. Compared with the existing treatment methods mainly using physical and chemical adsorption, the present invention uses molecular distillation to separate the colorless tea oil, which minimizes the factors affecting subsequent color recovery, reduces refining steps, shortens the production cycle, and reduces refining losses. Developed high-quality deep-processed oil products and edible-grade oil as by-products.

Description

A kind of processing separation method of oil and its application

technical field

The invention belongs to the field of agricultural product processing, and in particular relates to an oil processing and separation method and its application.

Background technique

Camellia oleifrea (Camellia oleifrea Abel) is a plant of the genus Camellia in the family Theaceae. It has a long history of cultivation. It originally originated in China and is one of the four major woody oil tree species in the world. Camellia oleifera in my country is mainly distributed in the south, such as Guangxi, Hunan, Zhejiang, Jiangxi and other regions, and currently has a relatively large scale and output in China. Camellia oil is a woody vegetable oil extracted from the seeds of Camellia oleifera. It is rich in unsaturated fatty acids, pure in color, rich in nutrition, and has a unique fragrance of camellia oil. It is a high-grade edible oil. The unsaturated fatty acid content in camellia oil accounts for 90% of the total fatty acid content, among which the oleic acid content is as high as 80%, which is comparable to the currently recognized health oil in the world—olive oil. "The name. "Compendium of Materia Medica" records: "Tea oil is cool in nature, has the effects of cooling blood, stopping bleeding, clearing away heat, and detoxifying. According to the "Chinese and Foreign Medicine Dictionary", tea oil is not only rich in nutrition, but also promotes the secretion of endocrine gland hormones, prevents neurological decline, and improves human immunity. Therefore, camellia oil is a health-care nutritional oil that is worth recommending and beneficial to human health. Therefore, camellia oil is a recommended health-care nutritional oil beneficial to human health and suitable for long-term consumption.

Camellia oil is similar to olive oil and belongs to non-drying oil. Refined tea oil is stable and not easy to be oxidized. Tea oil has strong permeability and is easy to absorb, absorbs ultraviolet rays, does not contain aflatoxin in general vegetable oils, contains a small amount of vitamin E, free amino acids, tea polyphenols, tea saponins and other ingredients, and has bactericidal and antipruritic effects, so tea The oil is very suitable as a raw material of oils and fats for cosmetics and medicines. It is reported that the camellia oil used in high-end cosmetics in Japan is as high as hundreds of tons every year. Traditional oil refining methods can make camellia oil meet edible standards, but it is difficult to meet the standards of cosmetics in terms of quality such as color and luster.

Chinese invention patent application CN200810029411.8 discloses a method for preparing camellia oil for cosmetics. High-quality camellia seeds are roasted at low temperature, pressed at room temperature, heated to filter impurities, deacidified and degummed by two-step method of alkali refining and ethanol extraction, and then activated carbon The mixture with activated clay is used as a decolorizing agent for decolorization, and oxides and miscellaneous odors are removed by deodorization, and finally camellia oil is basically colorless, crystal clear, and odorless. Chinese Invention Patent Publication No. CN1017691.A discloses a method for refining cosmetic-grade camellia oil by short-path distillation. The method uses three-stage distillation to prepare camellia oil with low acid value and high-value oleic acid. However, in the above-mentioned patents, the steps of alkali refining and ethanol extraction are relatively cumbersome, which have a certain impact on oil quality, high energy consumption and easy to cause secondary pollution; while the three-stage distillation preparation is only used as a technology to reduce the acid value. Failed to solve the existing color problem well. Therefore, it is necessary to develop a simple and feasible green production preparation technology for large-scale production.

Contents of the invention

The technical problem to be solved by the present invention is an oil processing and separation method and its products and applications aimed at the shortcomings of the above-mentioned prior art, reducing refining steps, shortening the production cycle, reducing refining losses, and minimizing the impact of subsequent color recovery Factors, develop high-quality deep-processed oil products, and edible-grade oil as a by-product, to achieve directional optimization of oil and make full use of it.

The technical scheme that the present invention adopts for solving the above-mentioned problem is:

A method for processing and separating oil, characterized in that it comprises the following steps:

Step 1, separation: the crude oil is separated by short-range molecular distillation to obtain high-boiling range oil and low-boiling range oil; wherein, the conditions for separation treatment are: the ratio of the sampling rate to the evaporation area is 10-100L/(h*m ² ) within the range, the evaporation temperature is between 100-200°C, the scraper speed is within the range of 100-300rad/min, and the condensation temperature is between 0-35°C;

Step 2, refining: deacidifying the low boiling range oil obtained in step 1 to obtain colorless, clear and transparent high-quality cosmetic and medicinal oil; degumming the high boiling range oil obtained in step 1 to obtain edible grade oil.

According to the above scheme, the crude oil includes oil plants such as camellia oleifera, samara, grape seed, olive, almond, ie tea oil, samara oil, grape seed oil, olive oil, almond oil and the like. Further, the crude oil described in the present invention is preferably camellia oil.

According to the above scheme, the crude oil can be prepared by cold pressing, supercritical extraction, microwave-assisted extraction or pressing.

Preferably, the crude oil of the present invention is prepared by cold pressing, and the specific steps are: select mature oil plants, wherein the shell content is 2-12% (mass percentage) and the moisture content is 2-8% (mass percentage); Percentage), then carry out cold pressing, the temperature of the pressing chamber is 50-100°C, and the temperature of the oil outlet is 30-80°C; the squeezed oil is filtered to remove impurities to obtain crude oil.

Furthermore, the shell content of the oil in the present invention is preferably in the range of 4-8%, and the moisture content is preferably in the range of 4-6%.

Further, the temperature of the press chamber is preferably 70-90°C, and the oil outlet temperature is preferably 30-60°C.

According to the above scheme, in the short-range molecular distillation process, the colorless, clear and transparent oil component collected after evaporation and condensation is low boiling range oil, and the unevaporated oil component collected from the evaporator is high boiling range oil.

According to the above scheme, in the first step, when short-range molecular distillation is used for separation treatment, the conditions for separation treatment are preferably: the ratio of the sampling rate to the evaporation area is within the range of 40-60L/(h*m ² ), and the evaporation temperature is within the range of Between 120-160°C, the scraper speed is in the range of 150-250rad/min, and the condensation temperature is between 15-25°C.

According to the above scheme, in step 2, the low boiling range oil can be deacidified by short-range molecular distillation for secondary distillation, or by adding an adsorbent for physical adsorption. Preferably, after clay and diatomaceous earth are added to the low boiling range oil in the present invention, the deacidification treatment is realized by stirring and solid-liquid separation to obtain a colorless, clear and transparent cosmetic-grade oil. Among them, clay, diatomite and low boiling range oil are mixed in a mass ratio of (0.1-0.5):(0.1-0.5):10.

According to the above scheme, in the second step, the high boiling range oil can be degummed by an enzymatic process, or can be degummed by a hydration method. Preferably, the present invention adopts the hydration method for degumming treatment, the specific method is: heating the high boiling range oil to 70-80°C, and then adding water at a temperature of 70-80°C for degumming, the amount of water added is 6-7% of the mass of the high boiling range oil , the degumming time is 10-20 minutes, after centrifugation, filtration, vacuum drying and cooling, edible grade oil is obtained.

Compared with prior art, the beneficial effect of the present invention is:

(1) For the preparation of colorless oil, especially camellia oil, the existing methods mainly continue to use classic treatment methods such as physical and chemical adsorption, the steps are more complicated and the energy consumption and oil loss are more, while short-range molecular distillation is currently used in In industry, it is mainly used for the enrichment, separation and purification of functional components (such as the enrichment of DHA and EPA) or for deacidification of oil, etc., but its application in pigments is limited to the removal of solvent residues, etc., so it has not been seen. Those skilled in the art have tried to expand and apply it to the separation of colorless oil. However, the present invention adopts short-range molecular distillation for the first time to separate the colorless oil, and firstly separates the colored components, which minimizes the factors affecting subsequent color recovery, reduces refining steps, shortens the production cycle, and reduces refining losses, thereby developing a high-efficiency High-quality deep-processed oil products (that is, high-quality cosmetics and medicinal oils); and colored components can be used in the food field. In particular, in specific implementation cases, functional active ingredients such as colorless tea oil, vitamin E, squalene, and phytosterols have an enrichment effect, and the content increases by more than 50%, and the stability is better;

(2) The present invention aims at the characteristics that high boiling range oil has colloid and low acid value, and low boiling range oil has no colloid and high acid value, respectively carries out refining treatment, realizes the directional optimized utilization of energy consumption, saves energy, and has high oil utilization rate , the total yield reaches more than 96%. Among them, the low-boiling range oil obtained by short-range molecular distillation has a high yield, is colorless, clear and transparent, has high content of functional ingredients such as vitamin E and phytosterol, and is easily absorbed by the skin. It is suitable for cosmetics, pharmaceuticals and other fields. The oil complies with the relevant national regulations on edible tea oil and can be used in the food field. In particular, the yield of colorless camellia oil is higher, reaching more than 40%, and the tea oil with high boiling range is still an excellent edible oil raw material;

(3) The processes involved in the present invention are all carried out at a lower temperature, and the contact time between the oil sample and the distillation heating surface is short during the distillation process, which ensures the high quality of the oil product to a large extent;

(4) The product of the present invention has accurate positioning and strong practicability. The steps involved adopt physical processing technology. The process is simple and easy to operate with low loss, less environmental pollution, easy to control, green and efficient, suitable for large-scale production, in line with modern green processing and high added value Product development requirements.

detailed description

In order to better understand the present invention, the content of the present invention is further illustrated below in conjunction with the examples, but the present invention is not limited to the following examples.

Example 1

A method for processing and separating camellia oil, specifically comprising the following steps:

(1) Pretreatment: select mature camellia oleifera seeds, remove impurities (removal of impurities such as silt, branches and leaves that may exist in the tea seeds) and shell them to obtain tea seed kernels, with a shell rate of 6% in the kernels, and adjust the tea seed kernels The moisture content in the medium is 6%;

(2) Virgin pressing: the tea seed kernels after shelling are subjected to cold pressing, the temperature of the pressing chamber is 90°C, and the temperature of the oil outlet is 40°C, and the pressed tea oil is filtered to remove impurities (remove the residue generated during the pressing process) etc.), to obtain virgin camellia oil, i.e. crude oil;

( ³ ) Separation: The filtered camellia oil is separated by short-range molecular distillation (rotary scraper type). The plate speed is 200rad/min, the condensation temperature is 15°C, and high boiling range tea oil and low boiling range tea oil are separated;

(4) Refining: heat up the separated high-boiling tea oil and water to 70°C at the same time, add 6% water, degumming time 10min, filter with a chamber filter press to obtain edible-grade camellia oleifera seed oil; and separate the obtained low-boiling tea The oil is mixed according to the mass ratio of clay, diatomaceous earth, and low-boiling range tea oil of 0.5:0.5:10, stirred for 30 minutes, and centrifuged to obtain colorless, clear and transparent cosmetic-grade white tea oil.

According to relevant national standards and landmark inspection standards, in this example, the acid value of the obtained virgin tea oil is 0.36mgKOH/g, peroxide value 0.78mmol/kg, vitamin E 0.347mg/g, sterol 0.774mg/g, squal alkenes 0.335mg/g; the yield of food-grade Camellia oleifera oil after separation and refining is 56%, acid value 0.12mgKOH/g, peroxide value 0.28mmol/kg, and vitamin E, sterols, squalene Compared with ordinary refined oil, the ingredients are also at a higher level, which is a high-quality food-grade oil; while the yield of cosmetic-grade white tea oil is 42%, the acid value is 0.07mgKOH/g, and the peroxide value is 0.67mmol/kg , vitamin E 0.564mg/g, sterol 1.24mg/g, squalene 0.612mg/g, which can be directly applied to high-end skin care products.

Example 2

A method for processing and separating camellia oil, specifically comprising the following steps:

(1) Pretreatment: select mature camellia oleifera seeds, remove impurities and dehull to obtain tea seed kernels, with a shell rate of 6% in the kernels, and adjust the moisture content in the tea seed kernels to 4%;

(2) Virgin pressing: the tea seed kernels after shelling are subjected to cold pressing, the temperature of the pressing chamber is 80°C, and the oil outlet temperature is 35°C, and the pressed tea oil is filtered to remove impurities to obtain virgin tea oil, namely crude oil;

(3) Separation: The filtered camellia oil is separated by short-range molecular distillation. The separation conditions are: the ratio of the sampling rate to the evaporation area is 40L/(h·m ² ), the evaporation temperature is 135°C, and the scraper speed is 180rad/min. , the condensation temperature is 15°C, and the tea oil with high boiling range and tea oil with low boiling range are obtained through separation;

(4) Refining: heat up the separated high-boiling tea oil and water to 80°C at the same time, add 6% water, degumming time 20min, filter with a chamber filter press to obtain edible-grade camellia oleifera seed oil; and separate the obtained low-boiling tea The oil is mixed according to the mass ratio of clay, diatomaceous earth, and low-boiling tea oil of 0.1:0.5:10, stirred for 30 minutes, and centrifugally filtered to obtain colorless, clear and transparent cosmetic-grade white tea oil.

According to relevant national standards and landmark inspection standards, in this example, the acid value of the obtained virgin tea oil is 0.40mgKOH/g, peroxide value 0.66mmol/kg, vitamin E 0.235mg/g, sterol 0.662mg/g, squal alkenes 0.301mg/g; the yield of food grade Camellia oleifera seed oil after separation and refining is 53%, acid value 0.14mgKOH/g, peroxide value 0.20mmol/kg, vitamin E, sterols, squalene Compared with ordinary refined oil, the ingredients are also at a higher level, which is a high-quality food-grade oil; while the yield of cosmetic-grade white tea oil is 44%, the acid value is 0.09mgKOH/g, and the peroxide value is 0.50mmol/kg , vitamin E 0.442mg/g, sterol 1.04mg/g, squalene 0.598mg/g, which can be directly applied to high-end skin care products.

Example 3

A method for processing and separating camellia oil, specifically comprising the following steps:

(1) Pretreatment: select mature camellia oleifera seeds, remove impurities and dehull to obtain tea seed kernels, with a shell rate of 10% in the kernels, and adjust the moisture content in the tea seed kernels to 6%;

(2) Virgin pressing: the tea seed kernels after shelling are subjected to cold pressing, the temperature of the pressing chamber is 80°C, and the oil outlet temperature is 40°C, and the pressed tea oil is filtered to remove impurities to obtain virgin tea oil, namely crude oil;

(3) Separation: The filtered camellia oil is separated by short-range molecular distillation. The separation conditions are: the ratio of the sampling rate to the evaporation area is 50L/(h·m ² ), the evaporation temperature is 140°C, and the scraper speed is 220rad/min. , the condensation temperature is 10°C, and the tea oil with high boiling range and tea oil with low boiling range are obtained through separation;

(4) Refining: heat up the separated high-boiling tea oil and water to 80°C at the same time, add 4% water, degumming time 20min, filter with a chamber filter press to obtain edible-grade camellia oleifera seed oil; and separate the obtained low-boiling tea The oil is mixed according to the mass ratio of clay, diatomaceous earth, and low-boiling camellia oil of 0.2:0.4:10, stirred for 30 minutes, and centrifuged to obtain colorless, clear and transparent cosmetic-grade white tea oil.

According to relevant national standards and landmark inspection standards, in this example, the acid value of the obtained virgin tea oil is 0.33mgKOH/g, peroxide value 0.80mmol/kg, vitamin E 0.454mg/g, sterol 0.712mg/g, squal ene 0.313mg/g; after separation and refining, the yield of food-grade Camellia oleifera seed oil is 50%, acid value 0.10mgKOH/g, peroxide value 0.33mmol/kg, and vitamin E, sterols, squalene Compared with ordinary refined oils, the ingredients are also at a higher level, which is a high-quality food-grade oil; while the yield of cosmetic-grade white tea oil is 47%, the acid value is 0.07mgKOH/g, and the peroxide value is 0.47mmol/kg , vitamin E 0.779mg/g, sterol 1.31mg/g, squalene 0.589mg/g, which can be directly applied to high-end skin care products.

Example 4

A method for processing and separating camellia oil, specifically comprising the following steps:

(1) Pretreatment: select mature camellia oleifera seeds, remove impurities and dehull to obtain tea seed kernels, with a shell rate of 6% in the kernels, and adjust the moisture content in the tea seed kernels to 6%;

(2) Virgin pressing: the tea seed kernels after shelling are subjected to cold pressing, the temperature of the pressing chamber is 90°C, and the oil outlet temperature is 40°C, and the pressed tea oil is filtered to remove impurities to obtain virgin tea oil, namely crude oil;

(3) Separation: The filtered camellia oil is separated by short-range molecular distillation. The separation conditions are: the ratio of the sampling rate to the evaporation area is 40L/(h·m ² ), the evaporation temperature is 140°C, and the scraper speed is 200rad/min. , the condensation temperature is 15°C, and the tea oil with high boiling range and tea oil with low boiling range are obtained through separation;

(4) Refining: heat up the separated high-boiling tea oil and water to 70°C at the same time, add 6% water, degumming time 10min, filter with a chamber filter press to obtain edible-grade camellia oleifera seed oil; and separate the obtained low-boiling tea The oil is mixed according to the mass ratio of clay, diatomaceous earth, and low-boiling range tea oil of 0.5:0.5:10, stirred for 30 minutes, and centrifuged to obtain colorless, clear and transparent cosmetic-grade white tea oil.

According to relevant national standards and landmark inspection standards, in this example, the acid value of the obtained virgin tea oil is 0.44mgKOH/g, peroxide value 0.87mmol/kg, vitamin E 0.300mg/g, sterol 0.677mg/g, squal alkenes 0.274mg/g; the yield of food-grade Camellia oleifera oil after separation and refining is 57%, acid value 0.20mgKOH/g, peroxide value 0.32mmol/kg, and vitamin E, sterols, squalene Compared with ordinary refined oil, the ingredients are also at a higher level, which is a high-quality food-grade oil; while the yield of cosmetic-grade white tea oil is 42%, the acid value is 0.10mgKOH/g, and the peroxide value is 0.40mmol/kg , vitamin E 0.612mg/g, sterol 1.08mg/g, squalene 0.551mg/g, which can be directly applied to high-end skin care products.

Example 5

A method for processing and separating camellia oil, specifically comprising the following steps:

(1) Pretreatment: select mature camellia oleifera seeds, remove impurities and dehull to obtain tea seed kernels, with a shell rate of 6% in the kernels, and adjust the moisture content in the tea seed kernels to 6%;

(2) Virgin pressing: the tea seed kernels after shelling are subjected to cold pressing, the temperature of the pressing chamber is 90°C, and the oil outlet temperature is 40°C, and the pressed tea oil is filtered to remove impurities to obtain virgin tea oil, namely crude oil;

(3) Separation: The filtered camellia oil is separated by short-range molecular distillation. The separation conditions are: the ratio of the sampling rate to the evaporation area is 40L/(h·m ² ), the evaporation temperature is 140°C, and the scraper speed is 200rad/min. , the condensation temperature is 15°C, and the tea oil with high boiling range and tea oil with low boiling range are obtained through separation;

(4) Refining: adding water and enzyme to the high boiling range camellia oil after separation, the amount of water added is 6% of the quality of high boiling range camellia oil, the amount of enzyme added is 1% of the quality of high boiling range tea oil, degumming is carried out at 40°C of temperature and stirred for 30min, then Adopt chamber type filter press to filter, obtain edible grade Camellia oleifera seed oil; And the low-boiling range camellia oil of separation gained, according to the mass ratio of clay, diatomaceous earth, low-boiling range camellia oil is 0.5:0.5:10 mixes, stirs 30min, After centrifugal filtration, a colorless, clear and transparent cosmetic-grade white tea oil is obtained.

According to relevant national standards and landmark inspection standards, in this example, the acid value of the obtained virgin tea oil is 0.27mgKOH/g, peroxide value 0.71mmol/kg, vitamin E 0.412mg/g, sterol 0.566mg/g, squal alkenes 0.289mg/g; the yield of food-grade Camellia oleifera oil after separation and refining is 53%, acid value 0.13mgKOH/g, peroxide value 0.31mmol/kg, vitamin E, sterols, squalene Compared with ordinary refined oil, the ingredients are also at a higher level, which is a high-quality food-grade oil; while the yield of cosmetic-grade white tea oil is 45%, the acid value is 0.08mgKOH/g, and the peroxide value is 0.40mmol/kg , vitamin E 0.656mg/g, sterol 0.899mg/g, squalene 0.523mg/g, which can be directly applied to high-end skin care products.

Example 6

A method for processing and separating samara oil, specifically comprising the following steps:

(1) pretreatment: select ripe Samara, remove impurities and shell to obtain Samara Kernel, the shell rate in Kernel is 6%, and adjust the moisture content in Samara Kernel to 6%;

(2) Virgin pressing: the shelled samara kernels are cold-pressed, the temperature of the pressing chamber is 90°C, and the oil outlet temperature is 40°C, and the pressed samara oil is filtered to remove impurities to obtain virgin samara oil , namely crude oil;

(3) Separation: The filtered samara oil is separated by short-range molecular distillation. The separation conditions are: the ratio of the sampling rate to the evaporation area is 40L/(h·m ² ), the evaporation temperature is 140°C, and the scraper speed is 200rad/ min, the condensation temperature is 15°C, and the high boiling range samara oil and the low boiling range samara oil are separated;

(4) Refining: heat up the separated high boiling range samara oil and water to 70°C at the same time, add 6% water, degumming time 10min, filter with a chamber filter press to obtain edible grade samara oil; Cheng samara oil is mixed according to the mass ratio of clay, diatomaceous earth, and low boiling range samara oil of 0.5:0.5:10, stirred for 30 minutes, and centrifuged to obtain colorless, clear and transparent cosmetic grade samara oil.

According to relevant national standards and landmark inspection standards, in this embodiment, the acid value of the obtained virgin samara oil is 1.25mgKOH/g, the peroxide value is 1.04mmol/kg, vitamin E is 0.755mg/g, and sterol is 0.641mg/g; The yield of the separated and refined edible grade samara oil is 57%, the acid value is 0.54mgKOH/g, and the peroxide value is 0.78mmol/kg, while vitamin E, sterols, squalene and other components are comparable to ordinary refined oil The ratio is also at a relatively high level, which is a high-quality food-grade oil; while the yield of cosmetic-grade white winged fruit oil is 40%, the acid value is 0.16mgKOH/g, the peroxide value is 1.22mmol/kg, and vitamin E is 1.87mg /g, sterol 1.11mg/g, is a high-quality skin care oil.

Example 7

A method for processing and separating grapeseed oil, specifically comprising the following steps:

(1) Pretreatment: select fresh grape seeds, remove impurities and dry, and adjust the moisture content in grape seeds to 6%;

(2) Virgin pressing: the above grape seeds are subjected to cold pressing, the temperature of the pressing chamber is 90°C, and the temperature of the oil outlet is 40°C, and the pressed grape seed oil is filtered to remove impurities to obtain virgin grape seed oil, namely crude oil ;

(3) Separation: The filtered grape seed oil is separated by short-range molecular distillation. The separation conditions are: the ratio of the sampling rate to the evaporation area is 40L/(h·m ² ), the evaporation temperature is 140°C, and the scraper speed is 200rad/ min, condensing temperature 15°C, separated to obtain high boiling range grape seed oil and low boiling range grape seed oil;

(4) Refining: the separated high-boiling range grape seed oil and water are heated up to 70°C simultaneously, the amount of water added is 6%, the degumming time is 10min, and the chamber filter press is filtered to obtain edible-grade oil grape seed oil; The boiling range grape seed oil is mixed according to the mass ratio of clay, diatomaceous earth, and low boiling range grape seed oil of 0.5:0.5:10, stirred for 30 minutes, and centrifuged to obtain colorless, clear and transparent cosmetic grade white grape seed oil.

According to relevant national standards and landmark inspection standards, in this embodiment, the acid value of the obtained virgin grape seed oil is 0.85mgKOH/g, peroxide value 1.02mmol/kg, vitamin E 0.145mg/g, sterol 1.56mg/g; The yield of edible-grade grape seed oil after separation and refining is 54%, the acid value is 0.28mgKOH/g, and the peroxide value is 0.37mmol/kg. It is also at a relatively high level, and it is a high-quality food-grade oil; while the yield of cosmetic-grade white grape seed oil is 44%, the acid value is 0.14mgKOH/g, the peroxide value is 0.50mmol/kg, and vitamin E is 0.250 mg/g, sterol 2.55mg/g, it is a high-quality skin care oil.

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the creative concept of the present invention, some improvements and changes can also be made, and these all belong to the present invention scope of protection.

Claims (10)

1. it is a kind of oil processing separation method, it is characterised in that comprise the following steps：

Step one, separates：Crude oil is carried out into separating treatment with short-range molecular distillation, high boiling range oil and low boiling journey oil is obtained；Wherein, The condition of separating treatment is：The ratio of sample rate and disengagement area is in 10～100L/ (h*m²) in the range of, evaporating temperature exists Between 100～200 DEG C, in the range of 100～300rad/min, condensation temperature is between 0～35 DEG C for scraper plate speed；

Step 2, refines：Step one gained low boiling journey oil is carried out into depickling process, the transparent high-quality of achromaticity and clarification is obtained final product and is made up Product and medicinal oil；Step one gained high boiling range oil is carried out into degumming process, food-grade oil is obtained final product.

2. it is according to claim 1 it is a kind of oil processing separation method, it is characterised in that the crude oil include oil tea, wing Really, the oil plant of grape pip, olive, Ba Danmu.

3. it is according to claim 1 it is a kind of oil processing separation method, it is characterised in that crude oil of the present invention be tea oil.

4. it is according to claim 1 it is a kind of oil processing separation method, it is characterised in that the crude oil by cold press squeezing, The modes such as supercritical extract, microwave auxiliary extraction or squeezing are prepared.

5. the processing separation method of a kind of oil according to claim 1, it is characterised in that crude oil of the present invention is by cold Squeeze squeezing mode to prepare, concretely comprise the following steps：Choose ripe oil plant, shell-containing rate therein is 2～12% and biodiversity Scope of the content 2～8%, then carries out cold press squeezing, and press chamber temperature is 50～100 DEG C, and oil outlet temperature is 30～80 DEG C；Institute After the oil for squeezing out is through filtering off the removal of impurity, that is, obtain crude oil.

6. the processing separation method of a kind of oil according to claim 1, it is characterised in that low boiling journey oil for separation at The transparent oil ingredient of the achromaticity and clarification of collection after evaporating and condense in reason, high boiling range oil is collected for flash-pot in separating treatment Unevaporated oil ingredient.

7. it is according to claim 1 it is a kind of oil processing separation method, it is characterised in that in the step one, short distance molecule When distillation carries out separating treatment, the condition of separating treatment is：The ratio of sample rate and disengagement area is in 40～60L/ (h*m²) In the range of, between 120～160 DEG C, in the range of 150～250rad/min, condensation temperature is 15 for scraper plate speed for evaporating temperature Between～25 DEG C.

8. it is according to claim 1 it is a kind of oil processing separation method, it is characterised in that in step 2, low boiling journey oil adopt Short-range molecular distillation carries out second distillation technique and realizes depickling, or carries out being realized by way of physical absorption adding adsorbent Depickling.

9. the processing separation method of a kind of oil according to claim 1, it is characterised in that the method that the depickling is processed is： Add in low boiling journey oil after carclazyte, diatomite, agitated, separation of solid and liquid realizes that depickling is processed, and obtains the transparent change of achromaticity and clarification Cosmetic level oil.

10. it is according to claim 1 it is a kind of oil processing separation method, it is characterised in that the degumming process be enzyme process work Skill or aquation method.