CN105085232A - Method for extracting calcium stearate from euphausia superba and purifying calcium stearate - Google Patents
Method for extracting calcium stearate from euphausia superba and purifying calcium stearate Download PDFInfo
- Publication number
- CN105085232A CN105085232A CN201510439196.9A CN201510439196A CN105085232A CN 105085232 A CN105085232 A CN 105085232A CN 201510439196 A CN201510439196 A CN 201510439196A CN 105085232 A CN105085232 A CN 105085232A
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- calcium stearate
- krill
- extract
- purifying
- normal hexane
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/47—Separation; Purification; Stabilisation; Use of additives by solid-liquid treatment; by chemisorption
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/48—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
Abstract
The invention discloses a method for extracting calcium stearate from euphausia superba and purifying the euphausia superba. The method comprises the following steps: extracting fresh frozen euphausia superba, which has a moisture content of about 80 percent and serves as a raw material, with 95% ethanol for 3-4 times, and performing rotary evaporation on refined filtrate to obtain thick paste; performing layered extraction and purification with n-hexane for 4 times to obtain milk white powdered precipitate; and drying to obtain calcium stearate which is detected by infrared ray. According to the method, calcium stearate is extracted from euphausia superba for the first time, is purely natural without other chemical impurities, and is applicable to the fields of foods and medicines. The method can be used for extracting calcium stearate without other impurities from the whole euphausia superba by two steps with only ethanol and n-hexane, is low in cost, and is applicable to industrial production.
Description
Technical field
The present invention relates to and extract and the method for purifying calcium stearate from krill, belong to food, chemical industry, field of medicaments.
Technical background
Calcium stearate can make the thermo-stabilizer of polyvinyl chloride and the lubricant of multiple plastic working, and releasing agent etc. also can make polyethylene, polyacrylic halogen-absorber, to eliminate the detrimentally affect of residual catalyst to color and stability.In Rubber processing, make softening agent, natural or synthetic rubber can be made to soften, and on sulfuration almost without affecting.Also the lubricant of polyolein fiber and moulding compound is used as, the flatting agent of the intensifier of lubricating grease, the water-resisting agent of textiles, paint, the softening agent etc. of manufacture plastic disc.Also be used as the production of pencil-lead.
Calcium stearate is mainly used as lubricant in a medicament, sheet as beautiful in four hydrate probenecid, instant theophylline sheet, laxative chewable tablet etc.Anti-tensile agent, binding agent, emulsifying agent is used as widely in food-processing.Can be used for the glucose powder being coated with application, cane sugar powder, cake and spices etc.Calcium stearate has extremely significantly fattening effect as fodder additives mutton hybrid sheep of feeding.Also can be used for food product pack, medical apparatus etc. and require nontoxic flexible film and utensil etc.Because nontoxic.Acceptable daily intake unrestriction specifies, along with going deep into of scientific research, the purposes of calcium stearate can be more and more extensive.
Summary of the invention
Object of the present invention is exactly extract from krill and the method for purifying calcium stearate to provide a kind of.
To achieve these goals, the present invention adopts following technical scheme:
Extract from krill and a method for purifying calcium stearate, step is as follows:
(1) after krill being added extraction using alcohol, extracting solution is condensed into paste;
(2) milky white precipitate and calcium stearate is obtained with the paste that n-hexane extraction step (1) obtains.
The extraction process of described step (2) is as follows: stiff paste form step (1) obtained moves into separating funnel, add normal hexane, static layering after mixing, moves into separating funnel again by subnatant, adds normal hexane wherein, mixing is extracted, static rear layering, adds middle layer in separating funnel, then adds normal hexane, mixing, obtains bottom oyster white powdery precipitates and is calcium stearate after static.Utilize hexane solution repeatedly to extract, ensure that and avoid the residual of impurity while all calcium stearates all propose, obtain highly purified calcium stearate.
In described step (1) volume fraction of ethanol be 95%, 95% ethanol calcium stearate all can be extracted.
Extract more than 1 time in described step (1), extraction time increases with the increase of extraction time, and first time extracts 1h.Repeatedly extracting makes calcium stearates whole in krill all be suggested, extraction time increases with the increase of extraction time, and along with the increase of extraction time, the content remaining calcium stearate in krill is reducing gradually, increase extraction time, ensure that and extract fully.
Described step (1) uses filter paper filtering after having extracted.
The milky white precipitate normal hexane obtained cleans by described step (2), the impurity further in removing calcium stearate.
Described normal hexane add the quality that volume is 1-2 (preferably 1.5) times krill, while fully extracting calcium stearate, improve the utilization ratio of normal hexane.
In described step (1) paste moisture≤20%, water content is too high, cannot realize extraction below.
Revolve steaming temperature and be up to 60 DEG C.
Beneficial effect:
The present invention extracts calcium stearate first from krill, and the calcium stearate pure natural of extraction, without other impurity atom, is applicable to food, field of medicaments.
Calcium stearate in krill is only extracted by simple two steps with ethanol and normal hexane by the inventive method, and cost is low, is suitable for suitability for industrialized production.
Present method need not do special process to krill, directly uses whole shrimp, avoids process in early stage.
Accompanying drawing explanation
Fig. 1 is the infrared figure of embodiment 1 sample;
Fig. 2 is the infrared figure of embodiment 2 sample.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1
Take fresh freezing South Pole squama shrimp 150g (moisture 80%), adding volume fraction is 95% ethanol 500ml, stir and extract 1h, filter to get filtrate, add 500ml95% ethanol again to the shrimp after coarse filtration and stir extraction 2h, filter to get filtrate, in the shrimp after coarse filtration, add 95%500ml ethanol again stir extraction 3h, filter, the filtrate of three times is merged, about 1400ml, with the filter of filter paper essence.Essence filtrate revolves steaming at the highest 60 DEG C, obtains red stiff paste form.
Stiff paste form is moved into separating funnel, adds normal hexane 300ml wherein, static layering after mixing, liquid is divided into top to be red normal hexane layer and bottom khaki color liquid level.Separate levels liquid, subnatant is moved into separating funnel again, add normal hexane 200ml wherein, mixing is extracted, and can be divided into three layers after static, top is faint yellow normal hexane layer, middle layer off-white powder layer, and lower floor is khaki color.Separate three layers.Added in separating funnel by middle oyster white powdery layer, then add normal hexane 100ml, mixing, normal hexane liquid gonorrhoea, can obtain bottom oyster white powdery precipitates after static.Once obtain bottom white powder precipitation with the repurity of 100ml normal hexane, after dry, dry weight is 0.5g, and detect through Bruke infrared spectra, this material is calcium stearate, as shown in Figure 1.
Embodiment 2
Take the krill 200g of Fresh Frozen, all extraction conditions are with example one, and extract 4 times, the 4th extraction time is 3h.Can obtain calcium stearate is 0.8g.Infrared detection as shown in Figure 2.
The specific embodiment of the present invention is described although above-mentioned in conjunction with the embodiments; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (9)
1. extract from krill and a method for purifying calcium stearate, it is characterized in that, step is as follows:
(1) after krill being added extraction using alcohol, extracting solution is condensed into paste;
(2) milky white precipitate and calcium stearate is obtained with the paste that n-hexane extraction step (1) obtains.
2. the method extracting also purifying calcium stearate from krill as claimed in claim 1, it is characterized in that, the extraction process of described step (2) is as follows: stiff paste form step (1) obtained moves into separating funnel, add normal hexane, static layering after mixing, subnatant is moved into separating funnel again, add normal hexane wherein, mixing is extracted, static rear layering, adds middle layer in separating funnel, then adds normal hexane, mixing, obtains bottom oyster white powdery precipitates and is calcium stearate after static.
3. as claimed in claim 1 to extract from krill and the method for purifying calcium stearate, it is characterized in that, described krill is Fresh Frozen.
4. the method extracting also purifying calcium stearate from krill as claimed in claim 1, is characterized in that, extract more than 1 time in described step (1), extraction time increases with the increase of extraction time, and first time extracts 1h.
5. the method extracting also purifying calcium stearate from krill as claimed in claim 1, it is characterized in that, the milky white precipitate normal hexane obtained cleans by described step (2).
6. as claimed in claim 1 to extract from krill and the method for purifying calcium stearate, it is characterized in that, described normal hexane add the quality that volume is 1-2 times of krill.
7. as claimed in claim 1 or 2 to extract from krill and the method for purifying calcium stearate, it is characterized in that, in described step (1) paste moisture≤20%.
8. the method extracting also purifying calcium stearate from krill as claimed in claim 1, is characterized in that, revolves steaming temperature and is up to 60 DEG C.
9. as claimed in claim 6 to extract from krill and the method for purifying calcium stearate, it is characterized in that, described normal hexane add the quality that volume is 1.5 times of krills.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510439196.9A CN105085232A (en) | 2015-07-23 | 2015-07-23 | Method for extracting calcium stearate from euphausia superba and purifying calcium stearate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510439196.9A CN105085232A (en) | 2015-07-23 | 2015-07-23 | Method for extracting calcium stearate from euphausia superba and purifying calcium stearate |
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| Publication Number | Publication Date |
|---|---|
| CN105085232A true CN105085232A (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510439196.9A Pending CN105085232A (en) | 2015-07-23 | 2015-07-23 | Method for extracting calcium stearate from euphausia superba and purifying calcium stearate |
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| CN (1) | CN105085232A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041166A (en) * | 2011-01-20 | 2011-05-04 | 山东师范大学 | Method for extracting krill oil with high phosphatide content from Antarctic krills |
| CN102224855A (en) * | 2011-05-13 | 2011-10-26 | 中国海洋大学 | Method for enriching lipid in Antarctic krill |
| CN102334686A (en) * | 2011-07-19 | 2012-02-01 | 中国水产科学研究院东海水产研究所 | Rapid low temperature extraction method for total astaxanthin from frozen Euphausia superba Dana |
-
2015
- 2015-07-23 CN CN201510439196.9A patent/CN105085232A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041166A (en) * | 2011-01-20 | 2011-05-04 | 山东师范大学 | Method for extracting krill oil with high phosphatide content from Antarctic krills |
| CN102224855A (en) * | 2011-05-13 | 2011-10-26 | 中国海洋大学 | Method for enriching lipid in Antarctic krill |
| CN102334686A (en) * | 2011-07-19 | 2012-02-01 | 中国水产科学研究院东海水产研究所 | Rapid low temperature extraction method for total astaxanthin from frozen Euphausia superba Dana |
Non-Patent Citations (1)
| Title |
|---|
| 罗曼 等: ""利用红外光谱鉴别饱和脂肪酸及其盐"", 《光谱学与光谱分析》 * |
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Application publication date: 20151125 |