CN103484238A - Method for extracting cibora jadalna oil by supercritical carbon dioxide - Google Patents
Method for extracting cibora jadalna oil by supercritical carbon dioxide Download PDFInfo
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- CN103484238A CN103484238A CN201310491384.7A CN201310491384A CN103484238A CN 103484238 A CN103484238 A CN 103484238A CN 201310491384 A CN201310491384 A CN 201310491384A CN 103484238 A CN103484238 A CN 103484238A
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Abstract
The invention relates to a method for extracting cibora jadalna oil by supercritical carbon dioxide, belonging to the technical field of vegetable oil extraction. The method comprises the following steps: (1) raw material: crudely screening ripe cibora jadalna tubers to remove dust and impurities, and rinsing with clear water until the cleanliness of the material reaches 99% above; (2) drying: naturally drying the cibora jadalna, or drying in an electric heating constant-temperature forced air drying oven at 40 DEG C until the water content is lower than 6%; (3) pulverization: screening the dried cibora jadalna powder for later use, wherein the particle size is 20-40 meshes; and (4) supercritical carbon dioxide extraction: putting the pulverized cibora jadalna powder in a supercritical carbon dioxide extraction kettle, extracting for 2-3 hours, and collecting pure cibora jadalna oil at the outlet of the separation kettle, wherein the extraction pressure is 20-35 MPa, the extraction temperature is 40-45 DEG C, the separation pressure is 8-10 MPa, and the separation temperature is 45-50 DEG C. By adopting supercritical extraction, the method has the advantages of simple technique and high extraction efficiency, and is convenient to operate.
Description
Technical field
The invention belongs to Vegetable oil lipoprotein extractive technique field, particularly relate to a kind of method that adopts the carbon dioxide abstraction cyperus esculentus oil.
Background technology
Cyperus esculentus (Cyperus esculentus), be Cyperaceae Cyperus per nnial herb, is again Cyperus esculentus L. Var. Sativus Baeck., chufa, chufa, underground Chinese chestnut, underground walnut.Its Major Nutrient utilization is partly underground stem tuber part, because underground stem tuber is rounded or oval beans shape, therefore people to this plant also cyperus esculentus that are called more, a kind of high-quality, high yield, the oil that comprehensive utilization value is very high, grain, raise, fertile multi-purpose type cash crop, be also beautify, the ornamental plant of greening environment.
Cyperus esculentus can be eaten raw, stir-fry and eat, and can press the high-quality edible health-care oil, and its output is the highest kind in current oil crops, thereby the countries in the world agricultural experts are referred to as the king of oil crops.
Cyperus esculentus oil lipid acid forms take unsaturated fatty acids as main, and composition is oleic acid 64%～73.3%, is secondly that linolic acid is 11%～15.5%, palmitinic acid 16.2%.Linolenic acid is 0.9%～2%, and stearic acid is 2.5%～5.2%.Wherein the unsaturated acid composition accounts for 80.4%, and oil is better than peanut and sesame, the taste sweet-smelling, and color is transparent, puts and never degenerates for a long time, and lipid content is similar to olive.Also contain abundant mineral substance, and cyperus esculentus is containing cholesterol, sodium content is also quite low, to reducing blood fat, prevention cardiovascular diseases and organism metabolism etc., has unique effects.
The main milling process of extracting method of current cyperus esculentus oil and organic solvent extractionprocess etc., the main drawback of existence is the problems such as percentage extraction is low, dissolvent residual.For example the patent No. is CN97108383.5, and name is called " making method of soya-bean oil and goods " its main making method and boils beans for (1): after the mountain soya bean of choosing high-quality adds appropriate water boil, pull out; (2) steam beans: well-done mountain soya bean is put into to the about 0.5-1 hour of the vexed steaming of food steamer; (3) send out enzyme: steamed mountain soya bean is divided on the bamboo dustpan, and the bamboo dustpan is put into to damp and hot environment and send out enzyme, time 1-2 days; (4) wash enzyme: the mountain soya bean that will send out after enzyme is cleaned the enzyme bacterium with clear water; (5) soak: the mountain soya bean after cleaning is added to 1-5 hot water doubly at every turn, and unrestrained bubble repeatedly repeatedly; (6) waste lamp oil by not sleeping at night: pour in concentrating pan after the repeatedly soak solution of mountain soya bean is mixed, first with big fire, boil, more slowly boil with little fire, until soak solution becomes thick shape.So just can be made into soya-bean oil.The weak point of the method is operation by fermentation, and this operation is consuming time longer, and can produce mould, so the method just exists and follow-up washes enzyme, soaks operation.So, affect the efficiency of producing and existed again hygienic safety hidden danger.So in the prior art, adopting bean product processing and eating oil aspect is to exist the improved factor of many needs.
Supercritical carbon dioxide extraction method, be a kind of new chemical separating monotechnics, and collection extracts sepn process and one, and technical process is short, and extraction temperature is low, and extraction efficiency is high, no solvent residue.
For the many weak points that exist in the middle of prior art, this area is needed badly and is wanted a kind of novel method that supercritical carbon dioxide extraction method is applied to the cyperus esculentus oil extraction, solves the problem existed in the middle of prior art.
Summary of the invention
Technical problem to be solved by this invention is: a kind of method that supercritical carbon dioxide extraction cyperus esculentus oil is provided, the problems such as organic solvent residual, the extraction yield existed with solution traditional method for extracting Vegetable oil lipoprotein is low, the method adopts supercritical extraction, has advantages of that technique is simple, easy to operate, extraction efficiency is high.
A kind of method of supercritical carbon dioxide extraction cyperus esculentus oil is characterized in that:
The preparation of step 1, raw material
Choose ripe cyperus esculentus stem tuber, this ripe cyperus esculentus Tuber length is 1.2cm～2.5cm, and width is 0.7cm～1.5cm, cross 8 mesh sieve and remove dust and the impurity in the cyperus esculentus stem tuber, and, through the clear water rinsing, the raw material cleanliness after rinsing is >=99%;
The drying of step 2, raw material
The cyperus esculentus stem tuber of cleanliness after rinsing in step 1 >=99% is placed in to electric heating constant-temperature blowing drying box and dries under 40 ℃, the cyperus esculentus stem tuber water content after oven dry≤6%;
The pulverizing of step 3, raw material
Cyperus esculentus stem tuber after drying in step 2 is pulverized and sieving for standby, and the granularity after the cyperus esculentus stem tuber is pulverized is 20 orders～40 orders;
Step 4, the extraction of raw material under the supercritical co condition
Cyperus esculentus stem tuber powder after pulverizing in step 3 is placed in to the supercritical carbon dioxide extraction still, extraction agent is carbonic acid gas, the flow of this supercritical co is 15L/h～20L/h, it is 99.9% that purity reaches food grade, the adjusting extracting pressure is 20Mpa～35Mpa, and extraction temperature is 40 ℃～45 ℃, carries out extraction process, extraction time is 2h～3h
Raw material after extraction process completes enters separation circuit, and separating pressure is 8Mpa～10Mpa, and separation temperature is 45 ℃～50 ℃, adopts triangular flask to collect cyperus esculentus oil in the separating still exit.
In described step 4, the extraction agent carbonic acid gas returns to extraction process and recycles after separation circuit.
The fat content of described step 1 Raw cyperus esculentus stem tuber is 26%, and in step 4, isolated cyperus esculentus oil rate is 80%.～85%。
By above-mentioned design, the present invention can bring following beneficial effect: a kind of method of utilizing supercritical co to extract cyperus esculentus oil provided by the invention, have the high fat content at raw material cyperus esculentus stem tuber of percentage extraction while being 26%, its isolated cyperus esculentus oil rate can reach 80%.～85%。The method no solvent residue of extraction cyperus esculentus oil provided by the present invention, after separation circuit completes, the employing triangular flask is collected pure cyperus esculentus oil in the separating still exit.
Supercritical carbon dioxide extraction method of the present invention, a kind of new chemical separating monotechnics, the problems such as organic solvent residual, the extraction yield existed with solution traditional method for extracting Vegetable oil lipoprotein is low, the method adopts supercritical extraction, has advantages of that technique is simple, easy to operate, extraction efficiency is high, and collection extracts sepn process and one, technical process is short, extraction temperature is low, and extraction efficiency is high, no solvent residue.
Embodiment
Below in conjunction with specific embodiment, to the present invention, utilize the technical scheme of supercritical carbon dioxide extraction cyperus esculentus oil to be described in further detail.But the present invention is not limited to embodiment.
Embodiment 1:
Extract cyperus esculentus oil according to following steps:
(1) by ripe cyperus esculentus stem tuber, to cross scalping and remove dust and impurity, the clear water rinsing, reach more than 99% the material cleanliness.
(2) drying: cyperus esculentus is dried naturally or be placed under 40 ℃ of electric heating constant-temperature blowing drying boxes and dry, water content is less than 6%;
(3) pulverize: by the cyperus esculentus powder sieving for standby of drying, granularity is 20 orders;
(4) supercritical carbon dioxide extraction:
Take the extraction kettle that cyperus esculentus powder after the above-mentioned pulverizing of 1KG is placed in supercritical carbon dioxide extraction apparatus, set processing parameter: extracting pressure 20MPA, 40 ℃ of extraction temperature, separating device pressure is 10Mpa, separation temperature is 45 ℃, extraction time 2h.Collect pure cyperus esculentus oil with triangular flask in the separating still exit.Use under cyperus esculentus grease content 26% condition yield 80.55% in experiment.
Embodiment 2:
Extract cyperus esculentus oil according to following steps:
(1) by ripe cyperus esculentus stem tuber, to cross scalping and remove dust and impurity, the clear water rinsing, reach more than 99% the material cleanliness.
(2) drying: cyperus esculentus is dried naturally or be placed under 40 ℃ of electric heating constant-temperature blowing drying boxes and dry, water content is less than 6%;
(3) pulverize: by the cyperus esculentus powder sieving for standby of drying, granularity is 20 orders;
(4) supercritical carbon dioxide extraction:
Take the extraction kettle that cyperus esculentus powder after the above-mentioned pulverizing of 1KG is placed in supercritical carbon dioxide extraction apparatus, set processing parameter: extracting pressure 30MPA, 45 ℃ of extraction temperature, separating device pressure is 10Mpa, separation temperature is 50 ℃.Extraction time 3h.Collect pure cyperus esculentus oil with triangular flask in the separating still exit.Use under cyperus esculentus grease content 26% condition yield 83.23% in experiment.
Claims (3)
1. the method for a supercritical carbon dioxide extraction cyperus esculentus oil is characterized in that:
The preparation of step 1, raw material
Choose ripe cyperus esculentus stem tuber, this ripe cyperus esculentus Tuber length is 1.2cm～2.5cm, and width is 0.7cm～1.5cm, cross 8 mesh sieve and remove dust and the impurity in the cyperus esculentus stem tuber, and, through the clear water rinsing, the raw material cleanliness after rinsing is >=99%;
The drying of step 2, raw material
The cyperus esculentus stem tuber of cleanliness after rinsing in step 1 >=99% is placed in to electric heating constant-temperature blowing drying box and dries under 40 ℃, the cyperus esculentus stem tuber water content after oven dry≤6%;
The pulverizing of step 3, raw material
Cyperus esculentus stem tuber after drying in step 2 is pulverized and sieving for standby, and the granularity after the cyperus esculentus stem tuber is pulverized is 20 orders～40 orders;
Step 4, the extraction of raw material under the supercritical co condition
Cyperus esculentus stem tuber powder after pulverizing in step 3 is placed in to the supercritical carbon dioxide extraction still, extraction agent is carbonic acid gas, the flow of this supercritical co is 15L/h～20L/h, it is 99.9% that purity reaches food grade, the adjusting extracting pressure is 20Mpa～35Mpa, and extraction temperature is 40 ℃～45 ℃, carries out extraction process, extraction time is 2h～3h
Raw material after extraction process completes enters separation circuit, and separating pressure is 8Mpa～10Mpa, and separation temperature is 45 ℃～50 ℃, adopts triangular flask to collect cyperus esculentus oil in the separating still exit.
2. the method for a kind of supercritical carbon dioxide extraction cyperus esculentus oil according to claim 1 is characterized in that: in described step 4, the extraction agent carbonic acid gas returns to extraction process and recycles after separation circuit.
3. the method for a kind of supercritical carbon dioxide extraction cyperus esculentus oil according to claim 1, it is characterized in that: the fat content of described step 1 Raw cyperus esculentus stem tuber is 26%, and in step 4, isolated cyperus esculentus oil rate is 80%.～85%。
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Cited By (7)
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| CN103981020A (en) * | 2014-05-16 | 2014-08-13 | 吴江市英力达塑料包装有限公司 | Extraction-separation method of eaglewood oil |
| CN106244334A (en) * | 2016-09-12 | 2016-12-21 | 上海旭梅香精有限公司 | A kind of preparation method of crude soya bean spice |
| CN110029012A (en) * | 2019-03-23 | 2019-07-19 | 宋超 | A kind of high-purity chufa root oil and its extracting method |
| CN110229713A (en) * | 2019-07-11 | 2019-09-13 | 唐山市油莎草农业科技有限公司 | A kind of tiger nut edible oil and preparation method thereof |
| CN112680281A (en) * | 2020-12-31 | 2021-04-20 | 中华全国供销合作总社南京野生植物综合利用研究所 | Extraction and preparation method of cyperus esculentus compound essential oil |
| CN112831368A (en) * | 2021-01-07 | 2021-05-25 | 吉林农业大学 | Preparation method of cyperus esculentus oil |
| CN113713423A (en) * | 2021-09-06 | 2021-11-30 | 长春大学 | Process for preparing black soya bean distillate oil by supercritical extraction and application |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103981020A (en) * | 2014-05-16 | 2014-08-13 | 吴江市英力达塑料包装有限公司 | Extraction-separation method of eaglewood oil |
| CN106244334A (en) * | 2016-09-12 | 2016-12-21 | 上海旭梅香精有限公司 | A kind of preparation method of crude soya bean spice |
| CN110029012A (en) * | 2019-03-23 | 2019-07-19 | 宋超 | A kind of high-purity chufa root oil and its extracting method |
| CN110229713A (en) * | 2019-07-11 | 2019-09-13 | 唐山市油莎草农业科技有限公司 | A kind of tiger nut edible oil and preparation method thereof |
| CN112680281A (en) * | 2020-12-31 | 2021-04-20 | 中华全国供销合作总社南京野生植物综合利用研究所 | Extraction and preparation method of cyperus esculentus compound essential oil |
| CN112680281B (en) * | 2020-12-31 | 2024-04-26 | 中华全国供销合作总社南京野生植物综合利用研究所 | Extraction and preparation method of compound essential oil of cyperus esculentus |
| CN112831368A (en) * | 2021-01-07 | 2021-05-25 | 吉林农业大学 | Preparation method of cyperus esculentus oil |
| CN113713423A (en) * | 2021-09-06 | 2021-11-30 | 长春大学 | Process for preparing black soya bean distillate oil by supercritical extraction and application |
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