CN110343568A - A kind of acid stripping method of peony seed oil - Google Patents
A kind of acid stripping method of peony seed oil Download PDFInfo
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- CN110343568A CN110343568A CN201910639947.XA CN201910639947A CN110343568A CN 110343568 A CN110343568 A CN 110343568A CN 201910639947 A CN201910639947 A CN 201910639947A CN 110343568 A CN110343568 A CN 110343568A
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- depickling
- oil
- peony
- seed oil
- peony seed
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Classifications
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B3/00—Refining fats or fatty oils
- C11B3/001—Refining fats or fatty oils by a combination of two or more of the means hereafter
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B3/00—Refining fats or fatty oils
- C11B3/02—Refining fats or fatty oils by chemical reaction
- C11B3/06—Refining fats or fatty oils by chemical reaction with bases
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B3/00—Refining fats or fatty oils
- C11B3/12—Refining fats or fatty oils by distillation
Abstract
The invention belongs to edible oils and tree peony deep process technology product scope, provide a kind of method of peony seed oil depickling, propose a kind of green, efficient peony seed oil acid stripping method, gained peony seed oil color cadmium yellow, pure taste.By the squeezing of peony seeds crude oil, extraction, subcritical abstraction obtains peony seeds crude oil, acid or Alkalized oxidizing water, stirring or extraction is added in peony seeds crude oil；It is then allowed to stand layering or centrifuge separation, upper liquid is peony seeds depickling oil, then heats or rotate removing water.Simple process, process equipment requirement is low, and the peony seed oil quality controllability obtained through present invention process working process is good.Gained peony seed oil color cadmium yellow, pure taste contain higher linolenic acid.
Description
Technical field
The invention belongs to effective depickling skills of edible oil and peony product deep process technology field, especially peony seed oil
Art, specifically a kind of acid stripping method of peony seed oil.
Background technique
Contain about 0.5% or more free fatty acid in crude oil, free fatty acid content is up to 10% in certain oil.Free rouge
Fat acid influences the stability and flavor of grease, can be used plus the method for alkali neutralization removes free fatty acid, referred to as depickling
(deacidification), also known as alkali refining (alkali refining).The alkali number of addition can pass through the acid value of measurement grease
To determine.The fatty acid salt (soap stock) that the reflection generates enters water phase, after separating water phase, washs neutral grease with hot water, stands
Centrifugation, the soap stock of separating residual.The process while also adsorbable a part of colloid and pigment.
Grease tradition acid stripping method, as chemical deacidification, physical deacidification and miscella depickling are applied in the industry extensively, but
All there are some disadvantages.As alkali refining method be with the free fatty acid in alkali neutralization grease, soap absorbed portion generated and other
Impurity and from oil sedimentation separation method of refining.Alkali for neutralizing free fatty acid has sodium hydroxide (caustic soda), sodium carbonate
(blunt alkali) and calcium hydroxide etc..What is generallyd use in oil prodution industry production is caustic soda.The main function of alkali-refining deacidification process can return
It receives as the following: first, caustic soda can neutralize free fatty acid most in crude oil, the fatty acid sodium salt (soda soap) of generation
It not readily dissolves in the oil, becomes flocculation jelly and settle.Second, the soda soap for neutralizing generation is a surface reactive material, absorption
It is all relatively strong with absorbability, therefore, a considerable amount of other impurities (such as protein, mucus object, pigment, phosphatide and can be had
The substance of hydroxyl or phenolic group) it also brings into sediment or even suspended solid impurities can also be carried under one's arms by cotton-shaped soap group.Therefore,
Alkali refining itself has the comprehensive functions such as depickling, degumming, removing impurities matter and decoloration.Third, the saponification of caustic soda and a small amount of sweet three ester
The increase for causing refining to consume, therefore, it is necessary to optimised process operating condition be selected, to obtain the highest yield of finished product.Alkali-refining process point
Intermittent and continous way, intermittent to be suitable for small business, continous way is suitable for large enterprise.But the rouge that alkali refining method generates
Fat acid sodium-salt is often not easily separate completely.
New acid stripping method, such as biological depickling, resterification depickling, solvent extract deacidification, supercritical fluid extraction depickling, film
Isolation technics depickling, molecular distillation depickling, liquid crystal state depickling etc., instead of traditional acid stripping method, or by new acid stripping method and biography
The disadvantages of system method combines, and can overcome grease tradition purifying method disadvantage, but there is also at high cost, complex process and more impurity.
China is that maximum tree peony plantation is national in the world, and for a long time, the tree peony of various regions cultivation is mainly with ornamental and seedling
Based on dowel is sold, the development and utilization of tree peony deep processed product seem serious lag, and production added value is very low, do not form industry
Chain, especially paeonia rockii seed are only used for breeding on a small quantity, and the wasting of resources is extremely serious.
Tree peony is Ranunculaceae Paeonia xylophyta, has the good reputation of " king in spending ", is the distinctive plant resources in China, generation
The tree peony that boundary is widely planted various regions all originates from China.Seed oil content is greater than or equal to 22% in Section Moutan plant, referred to as oily
Use tree peony.Peony seed oil contains the unsaturated fatty acid that a large amount of human body needs, and unsaturated fatty acid (92.26%) has linoleic acid
(45. 41%~45.92%), linolenic acid (23.72%~26.34%), oleic acid, arachidonic acid, tocopherol etc., in addition also contain
Stilbene class abundant and single methods of glycosides etc..Wherein alpha-linolenic acid joins early in the World Health Organization in 1993, FAO (Food and Agriculture Organization of the United Nation)
The nutrient for carrying out special popularization is closed, there is the title of " hemotrophic nutrition element ", " vitaminF ", " plant docosapentaenoic acid ".
The too high levels of free fatty acid in general crude oil grease, can generate penetrating odor influence grease flavor and
Accelerate the hydrolysis of neutral oil rancid；Unsaturated fatty acid is poor to the stability of heat and oxygen, promotes oily oxidative rancidity, interferes grease hydrogen
Change goes on smoothly and corrodes equipment.Free fatty acid is present in tree peony crude oil grease, it can also make phosphatide, glycolipid, protein
The solubility of equal glue soluble substance and liposoluble substance in the oil increases, the catalyst of itself or grease, phospholipid hydrolysis.Water
Solubility also increases with the increase in oil containing free fatty acid in grease.Free fatty acid, which is present in grease, will lead to oil
The physical and chemical stability of rouge weakens, and must make efforts to remove in principle.
Acid stripping method disclosed in Chinese invention patent CN 101649246A uses 11% sodium hydroxide solution alkali refining
Depickling, caustic dosage are theoretical the sum of alkali charge and excess alkali quantity, and lye is added in three times, and alkali refining initial temperature is 40 DEG C, stirring when adding alkali
Speed is 60r/min, reduces mixing speed when oil soap separation, and increase oil temperature to 60 DEG C, is then centrifuged at 5000r/min
Processing obtains depickling oil.
It is mentioned in Chinese invention patent CN102071096A and the clear crude oil being obtained by filtration is imported into alkali refining tank alkali refining aquation, added
When hot clear crude oil reaches 60-70 DEG C, sodium hydroxide solution is added, adds 60-80 DEG C of water degumming, is stirred while adding water
It mixes, reprecipitation 4-8 hours.
Degummed oil, is heated to by alkali-refining deacidification method under stiring disclosed in Chinese invention patent CN103666750B
40-59 DEG C, with speed appropriate by 10%(weight) lye add in the degummed oil, when occurring gleditsia sinensis particle in the degummed oil
When, slow down mixing speed, when the gleditsia sinensis particle becomes larger, stops stirring；60-80 DEG C are warming up to, then heat preservation stands 10-
13h；It is all precipitated to gleditsia sinensis, isolates upper layer oil reservoir, recycle lower layer's gleditsia sinensis；Finally with 9-11% warm water of the oil reservoir weight
It washs the oil reservoir twice, separates moisture removal, obtain depickling oil.
Use alkali-refining deacidification in Chinese invention patent CN103416490A, caustic dosage be theoretical alkali charge and excess alkali quantity it
With, concentration of lye is 11% or so, and alkali refining initial temperature is at 40 DEG C, mixing speed 60r/min when adding alkali, when oil soap separation when reduce stir
Speed is mixed, and increases oil temperature to 60-65 DEG C, carries out centrifugal treating at 5000r/min then to get depickling oil.
It is mentioned in the above patent, uses sodium hydroxide solution during alkali-refining deacidification, increase the cost of depickling, and
It is seriously polluted.
Summary of the invention
The purpose of the present invention is to provide a kind of methods of peony seed oil depickling, propose a kind of green, efficient peony seeds
Oily acid stripping method, gained peony seed oil color cadmium yellow, pure taste.
The present invention is realized by following technical solution: a kind of method of peony seed oil depickling, will by squeezing, extraction,
The methods of subcritical abstraction obtains and Alkalized oxidizing water is added in peony seeds crude oil, stirring or extraction；It is then allowed to stand layering
Or centrifuge separation, upper liquid are peony seeds depickling oil, then heat or rotate removing water.
The solid-liquid ratio of the peony seeds crude oil and Alkalized oxidizing water is 1:0.5-1:50.The alkaline oxygenated current potential
The pH value of water is 8-13.5.The solid-liquid ratio of peony seeds crude oil and Alkalized oxidizing water is preferably 1:0.5-1:20.
The pH of the Alkalized oxidizing water solution is preferably 11.45；The peony seeds crude oil and Alkalized oxidizing water
Solid-liquid ratio be most preferably 1:1.
The temperature of the stirring or extraction is 20-150 DEG C；Stirring or extraction time are 0.5-10h.The stirring or extraction
The number of depickling is at least 1 time.The number of the stirring or extraction depickling is preferably 2 times.
Under the conditions of identical depickling, with the increase of Alkalized oxidizing water solution usage, the △ pH of peony seed oil is in
Downward trend.When solid-liquid ratio is in 1:0.5-1:1 range, △ pH downward trend is gentle, but solid-liquid ratio is after 1:1, obvious
Decline.Meanwhile compared with solid-liquid ratio 1:0.5, when solid-liquid ratio is 1:1, the color of peony seed oil is shallower.Comprehensively consider, with feed liquid
It is more best than 1:1.
Alkalized oxidizing water of the present invention is alkaline oxygenated to be manufactured with acidic oxidized electric potential water institutional method
Electric potential water.
Present invention process is simple, and low cost, Quan Lvse is pollution-free, and process equipment requirement is low, at present invention process processing
It is good to manage obtained peony seed oil quality controllability.Gained peony seed oil color cadmium yellow, pure taste.
Compared with the crude oil before depickling, the depickling of Alkalized oxidizing water solution and sodium hydroxide solution depickling both modes
The acid value of crude oil can be effectively reduced；In terms of acid value and peroxide value, two kinds of depickling modes are attained by the one of peony seed oil
Grade quality index.After two kinds of deacidifying process processing, peroxide value is all slightly increased, and may also be accorded with due to caused by heating
Close the quality standard of peony seed oil.
For Alkalized oxidizing water deacidifying process compared with traditional sodium hydroxide solution deacidifying process, Alkalized oxidizing water is de-
The peony seed oil that sour technique obtains is more as clear as crystal, and impurity is few.
Detailed description of the invention
Fig. 1 is the crude oil before depickling, the faint yellow peony seed oil using the method for the invention preparation, sodium hydroxide solution
The peony seed oil of depickling compares picture；In figure: the crude oil before 1- depickling；2- Alkalized oxidizing water solution depickling of the present invention
Peony seed oil；The peony seed oil of 3- sodium hydroxide solution depickling；Fig. 2 is the pH of Alkalized oxidizing water solution of the present invention
It is worth the influence to depickling crude oil pH value variation △ pH；Fig. 3 is Alkalized oxidizing water solution depickling number of the present invention to de-
The influence of sour crude oil pH value variation △ pH.
Specific embodiment
Further detailed description is made to the present invention With reference to embodiment, is not therefore limited the invention to
Among the embodiment described range.
Embodiment 1: a kind of method of peony seed oil depickling squeezes peony seeds crude oil, extraction, subcritical abstraction,
Peony seeds crude oil is obtained, Alkalized oxidizing water, stirring or extraction are added in peony seeds crude oil；It is then allowed to stand layering or centrifugation
Separation, upper liquid are peony seeds depickling oil, then heat or rotate removing water.
Method particularly includes: peony seeds crude oil takes 100g in beaker, and the Alkalized oxidizing water of 1L is added, and pH 10 adds
Thermal agitation 0.5h keeps the temperature 10h, and stratification obtains upper liquid, repeats aforesaid operations, carries out second of depickling, and revolving removes water, i.e.,
Obtain faint yellow peony seed oil, free from extraneous odour, oil yield 80%.
Embodiment 2: a kind of method of peony seed oil depickling, peony seeds crude oil take 100g in beaker, the alkali of 500mL are added
Property electrolyzed oxidizing water, pH 8, heating stirring 0.5h keep the temperature 32h, and centrifugation obtains upper liquid, repeats aforesaid operations, carries out second
Depickling, revolving water removal is to get faint yellow peony seed oil, free from extraneous odour, oil yield 85%.
Embodiment 3: a kind of method of peony seed oil depickling, peony seeds crude oil take 100g in beaker, the alkali of 500g are added
Property electrolyzed oxidizing water, pH 11.5, heating stirring 0.5h keep the temperature 48h, and stratification obtains upper liquid, repeat aforesaid operations, into
Second of depickling of row, revolving water removal is to get faint yellow peony seed oil, free from extraneous odour, oil yield 90%.As shown in Figure 1.
Fig. 1 is the crude oil before depickling, the faint yellow peony seed oil using the method for the invention preparation, sodium hydroxide solution
The peony seed oil of depickling compares picture, due in traditional sodium hydroxide solution deacidifying process process sodium hydroxide solution and crude oil not
Saturated fatty acid and saturated fatty acid chemically react, and generate impurity and are therefore obtained by traditional sodium hydroxide solution deacidifying process
Peony seed oil it is more muddy.
Influence of the pH value of Alkalized oxidizing water solution of the present invention to depickling crude oil pH value variation △ pH is detected,
Testing result is shown in Fig. 2, as shown in Figure 2, when pH depickling within the scope of 11.45-9.45, can effectively neutralize the free-fat in crude oil
Acid improves the pH of peony seed oil.When pH depickling within the scope of 9.45-7.54, the free fatty acid in crude oil cannot be effectively neutralized.
Therefore pH=11.45 of Alkalized oxidizing water solution are best.
Influence of the Alkalized oxidizing water solution depickling number of the present invention to depickling crude oil pH value variation △ pH is detected,
Testing result is shown in Fig. 3, from the figure 3, it may be seen that increasing depickling number, depickling crude oil pH value variation △ pH is gradually risen, when depickling number
When increasing to 2 times from 1 time, depickling crude oil pH value variation △ pH is significantly increased.Number is increased to 3 times, 4 times, and △ pH increases relatively slow
Slowly.Comprehensively consider oil-water separation and △ pH, be 2 with depickling number is best.
Alkalized oxidizing water solution depickling of the present invention and existing deacidifying process Contrast on effect the results are shown in Table 1, by table 1
It can be concluded that the peony seed oil that method of the present invention obtains is more as clear as crystal, impurity is few, and peroxide value is higher than hydroxide
Sodium solution depickling.Alkalized oxidizing water can neutralize most free fatty acid in crude oil, the fatty acid The sub-salt of generation, in oil
In it is soluble, while the alpha-linolenic acid of crude oil is not neutralized, to improve the quality of peony seed oil.
1 acidity of table or Alkalized oxidizing water solution depickling Contrast on effect corresponding with existing deacidifying process
Alkalized oxidizing water solution deacidifying process of the present invention is not limited only to changing for the deacidifying process of traditional peony seed oil
Into in principle, deacidifying process of the present invention can improve most of cold press edible oils such as (but not limited to) soybean oil, peanut oil, sesame
Sesame oil, cottonseed oil, rapeseed oil, rice bran oil, palm oil, sunflower oil, safflower seed oil, maize germ, linseed oil, castor oil,
The effective deacidifying process of tradition of palm-kernel oil and coconut oil etc..
Claims (9)
1. a kind of method of peony seed oil depickling, it is characterised in that: by squeezing, extraction, extract (including subcritical abstraction),
It obtains and Alkalized oxidizing water is added in peony seeds crude oil, stirring or extraction；It is then allowed to stand layering or centrifuge separation, upper liquid
Then as peony seeds depickling oil heats or rotates removing water.
2. a kind of method of peony seed oil depickling according to claim 1, it is characterised in that: the peony seeds crude oil and alkali
Property electrolyzed oxidizing water solid-liquid ratio be 1:0.5-1:50.
3. a kind of method of peony seed oil depickling according to claim 1 or 2, it is characterised in that: the alkaline oxygenated electricity
The pH value of position water is 8-13.5；The solid-liquid ratio of peony seeds crude oil and Alkalized oxidizing water is 1:0.5-1:20.
4. a kind of method of peony seed oil depickling according to claim 3, it is characterised in that: the Alkalized oxidizing water
The pH of solution is 11.45；The solid-liquid ratio of the peony seeds crude oil and Alkalized oxidizing water is 1:1.
5. a kind of method of peony seed oil depickling according to claim 3, it is characterised in that: the temperature of the stirring or extraction
Degree is 20-150 DEG C；Stirring or extraction time are 0.5-12h.
6. a kind of method of peony seed oil depickling according to claim 5, it is characterised in that: the stirring or extraction depickling
Number be at least 1 time.
7. a kind of method of peony seed oil depickling according to claim 6, it is characterised in that: the stirring or extraction depickling
Number be 2 times.
8. a kind of method of peony seed oil depickling according to claim 1, it is characterised in that: the depickling solution is alkalinity
The mixing liquid of electrolyzed oxidizing water or Alkalized oxidizing water and sodium hydroxide solution.
9. a kind of method of cold press edible oil depickling, it is characterised in that: by squeezing, extraction, extract, obtain in edible crude oil
Alkalized oxidizing water, stirring or extraction is added；It is then allowed to stand layering or centrifuge separation, upper liquid is edible depickling oil,
Then it heats or rotates and remove water.
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| CN201910639947.XA CN110343568A (en) | 2019-07-16 | 2019-07-16 | A kind of acid stripping method of peony seed oil |
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| CN201910639947.XA CN110343568A (en) | 2019-07-16 | 2019-07-16 | A kind of acid stripping method of peony seed oil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110760383A (en) * | 2019-12-10 | 2020-02-07 | 海南省粮油科学研究所 | Deacidification, decoloration and debitterizing method of crabapple seed crude oil |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104593143A (en) * | 2014-12-29 | 2015-05-06 | 胡发庭 | Method for preparing camellia oil capsules at low temperature and deodorization electrolysis equipment thereof |
| CN107987955A (en) * | 2017-11-27 | 2018-05-04 | 余雪平 | A kind of processing method of peony seed oil |
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2019
- 2019-07-16 CN CN201910639947.XA patent/CN110343568A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104593143A (en) * | 2014-12-29 | 2015-05-06 | 胡发庭 | Method for preparing camellia oil capsules at low temperature and deodorization electrolysis equipment thereof |
| CN107987955A (en) * | 2017-11-27 | 2018-05-04 | 余雪平 | A kind of processing method of peony seed oil |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110760383A (en) * | 2019-12-10 | 2020-02-07 | 海南省粮油科学研究所 | Deacidification, decoloration and debitterizing method of crabapple seed crude oil |
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Application publication date: 20191018 |