CN105038950A - Freeze-thawing demulsification based method for extracting tea oil - Google Patents
Freeze-thawing demulsification based method for extracting tea oil Download PDFInfo
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- CN105038950A CN105038950A CN201510423935.5A CN201510423935A CN105038950A CN 105038950 A CN105038950 A CN 105038950A CN 201510423935 A CN201510423935 A CN 201510423935A CN 105038950 A CN105038950 A CN 105038950A
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Abstract
A freeze-thawing demulsification based method for extracting tea oil is as follows: (1) artificially removing shells in tea-oil tree seed, drying and crushing; (2) weighing the tea seed powder obtained in the step (1), adding distilled water according to the mass ratio of solid to liquid being 1: 3-1: 8, beating by a colloid mill for 10-15 min, centrifuging at 3000-10000 r/min for 10-30 min, repeating 3-5 times, and collecting the upper layer emulsion; (3) beating the remaining aqueous phase and the residue from the step (2) by a colloid mill again for 5-10 min, allowing to stand, centrifuging at 3000-10000 r/min for 10-30 min, repeating 3-5 times, and collecting the upper layer emulsion; (4) combining the emulsion collected in step (3) and step (4); (5) freezing the emulsion under conditions of -20 to -80 DEG C for 12-24 h, taking out, thawing in warm water at 40-60 DEG C, centrifuging at 2000-5000 r/min, separating the upper supernatant oil layer, and repeating 3-5 times; and (6) merging the collected clear oil into and drying under vacuum. The emulsion of the present invention has oil content rate of 60-70%; freeze-thawing demulsification process is simple and does not use any chemicals; and the extracted tea oil is economic, efficient, safe and nutritious.
Description
Technical field
The invention belongs to grain and oil processing technique field.
Background technology
The extractive technique of current tea-seed oil mainly contains conventional press method, organic solvent lixiviation process, soxhlet extraction methods, supercritical extraction, water substitution and aqueous enzymatic method etc.Industrial conventional milling process and organic solvent lixiviation process.
Water substitution is the oil extracting methods that a kind of new development is got up, and is to substitute the position of oil in cell with water, and the method making grease dissociate out, what meet " safety, efficient, green " proposes oily requirement.And milling process Residual oil is higher, nutritive ingredient is destroyed serious; There is the safety issues such as dissolvent residual in solvent extraction method; There is the problems such as equipment investment is high in supercritical extraction.Therefore, water substitution is a kind of green oil extracting methods of alternative organic molten Ji.But water substitution is carried the emulsion layer produced in oily process and is caused oily emulsified liquid parcel, and final oil extracting rate is low.Therefore, how to utilize water substitution breakdown of emulsion to carry gordian technique that oil is water substitution industrial applications.
Summary of the invention
The object of the invention is to propose a kind of method extracting tea oil based on freeze thawing breakdown of emulsion, after promoting that emulsification is fully formed with colloidal mill making beating, then extract the novel method of tea oil with the full physical method of " safely, simple, efficient, economic " of freeze-thaw method breakdown of emulsion.
A kind of method extracting tea oil based on freeze thawing breakdown of emulsion of the present invention, according to the following steps.
(1) tea seed manually shells, and dry, pulverize.
(2) take the tea seed powder of step (1), add distilled water by feed liquid mass ratio 1:3-1:8, colloidal mill making beating 10-15min, in the centrifugal 10-30min of 3000-10000r/min, repeats 3-5 time, collects upper strata emulsion.
(3) by step (2) remaining aqueous phase and residue colloidal mill making beating 5-10min again, leave standstill, in the centrifugal 10-30min of 3000-10000r/min, repeat 3-5 time, collect upper strata emulsion.
(4) emulsion collected of combining step (3) and step (4).
(5) emulsion is placed in freezing 12-24h under-20 to-80 DEG C of conditions, takes out and thaw in 40-60 DEG C of warm water, centrifugal in 2000-5000r/min, boiled oil layer in separation, 3-5 time repeatedly.
(6) edible vegetable oil collected is merged, vacuum-drying.
Principal feature of the present invention.
1, utilize colloidal mill to pull an oar and fully destroy oil body cell, promote the abundant formation of emulsion, the emulsification degree of oil is very high, therefore, just can be reached the effect of isolate oil body by simple centrifuging process.
2, go out the high emulsion of oil length by centrifugation, carry out multigelation breakdown of emulsion to emulsion, can extract and obtain tea oil, technique is simple, economical.
3, adopt full physical method to carry oil, the active skull cap components of tea oil is kept, the lurid color and luster of tea oil is kept, oil extracting process safe nutrition.What the present invention adopted is that water law extracts tea oil from camellia seed kernel, first form emulsion, more freezing breakdown of emulsion carries oil, does not use organic reagent, natural nutrition.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but the non-scope being only limitted to these embodiments of scope of the present invention should be understood.
Embodiment 1.
(1) tea seed manually shells, and dry, pulverize.
(2) take 200g tea seed powder, feed liquid mass ratio is that 1:5 adding distil water extracts, and the centrifugal 12min of colloidal mill making beating 15min, 4200r/min, repeats 3 times, collect emulsion.
(3) by remaining aqueous phase and residue colloidal mill making beating 8min again, leave standstill, the centrifugal 20min of 5000r/min, repeats 4 times, collects emulsion.
(4) emulsion of twice collection is merged.
(5) by emulsion freezing 18h in-20 DEG C, take out and thaw in 40 DEG C of warm water, boiled oil layer in 4200r/min centrifugation, 3 times repeatedly.
(6) merge edible vegetable oil, vacuum-drying, oil extracting rate is 80.56%.
Embodiment 2.
(1) tea seed manually shells, and dry, pulverize.
(2) take 600g tea seed powder, feed liquid mass ratio is that 1:3 adding distil water extracts, and the centrifugal 15min of colloidal mill making beating 12min, 5000r/min, repeats 4 times, collect emulsion.
(3) by remaining aqueous phase and residue colloidal mill making beating 12min again, leave standstill, the centrifugal 15min of 4200r/min, repeats 4 times, collects emulsion.
(4) emulsion of twice collection is merged.
(5) by emulsion freezing 24h in-80 DEG C, take out and thaw in 45 DEG C of warm water, boiled oil layer in 4200r/min centrifugation, 4 times repeatedly.
(6) merge edible vegetable oil, vacuum-drying, oil extracting rate is 82.11%.
Embodiment 3.
(1) tea seed manually shells, and dry, pulverize.
(2) take 1000g tea seed powder, feed liquid mass ratio is that 1:8 adding distil water extracts, and 13min, 4500r/min are centrifugal in colloidal mill making beating, and centrifugal 20min, repeats 4 times, collects emulsion.
(3) by remaining aqueous phase and residue colloidal mill making beating 10min again, leave standstill, the centrifugal 15min of 4200r/min, repeats 4 times, collects emulsion.
(4) emulsion of twice collection is merged.
(5) by emulsion freezing 20h in-20 DEG C, take out and thaw in 50 DEG C of warm water, boiled oil layer in 5000r/min centrifugation, 3 times repeatedly.
(6) merge edible vegetable oil, vacuum-drying, oil extracting rate is 81.86%.
Claims (1)
1. extract a method for tea oil based on freeze thawing breakdown of emulsion, it is characterized in that according to the following steps:
(1) tea seed manually shells, and dry, pulverize;
(2) take the tea seed powder of step (1), add distilled water by feed liquid mass ratio 1:3-1:8, colloidal mill making beating 10-15min, in the centrifugal 10-30min of 3000-10000r/min, repeats 3-5 time, collects upper strata emulsion;
(3) by step (2) remaining aqueous phase and residue colloidal mill making beating 5-10min again, leave standstill, in the centrifugal 10-30min of 3000-10000r/min, repeat 3-5 time, collect upper strata emulsion;
(4) emulsion collected of combining step (3) and step (4);
(5) emulsion is placed in freezing 12-24h under-20 to-80 DEG C of conditions, takes out and thaw in 40-60 DEG C of warm water, centrifugal in 2000-5000r/min, boiled oil layer in separation, 3-5 time repeatedly;
(6) edible vegetable oil collected is merged, vacuum-drying.
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| CN201510423935.5A CN105038950A (en) | 2015-07-20 | 2015-07-20 | Freeze-thawing demulsification based method for extracting tea oil |
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| CN201510423935.5A CN105038950A (en) | 2015-07-20 | 2015-07-20 | Freeze-thawing demulsification based method for extracting tea oil |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106147990A (en) * | 2016-08-12 | 2016-11-23 | 绍兴文理学院元培学院 | The technique that a kind of aqua method extracts Chinese torreya seed oil |
| JP2020520397A (en) * | 2018-02-13 | 2020-07-09 | 江南大学Ｊｉａｎｇｎａｎ Ｕｎｉｖｅｒｓｉｔｙ | Oil extraction method by water medium method using tea saponin |
| CN112920897A (en) * | 2021-01-20 | 2021-06-08 | 安徽农业大学 | Method for extracting tea seed oil, tea seed starch and tea seed protein from camellia seed kernels |
| CN114288213A (en) * | 2021-12-27 | 2022-04-08 | 伊犁紫苏丽人生物科技有限公司 | Novel natural composite tea oil foot soaking gel bead and preparation method thereof |
| CN115820334A (en) * | 2022-12-09 | 2023-03-21 | 吉林省林业科学研究院 | Pilot-scale test process method for preparing shinyleaf yellowhorn oil by ultrasonic composite aqueous enzymatic method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106147990A (en) * | 2016-08-12 | 2016-11-23 | 绍兴文理学院元培学院 | The technique that a kind of aqua method extracts Chinese torreya seed oil |
| JP2020520397A (en) * | 2018-02-13 | 2020-07-09 | 江南大学Ｊｉａｎｇｎａｎ Ｕｎｉｖｅｒｓｉｔｙ | Oil extraction method by water medium method using tea saponin |
| JP7168992B2 (en) | 2018-02-13 | 2022-11-10 | 江南大学 | Oil extraction method by aqueous medium method using tea saponin |
| CN112920897A (en) * | 2021-01-20 | 2021-06-08 | 安徽农业大学 | Method for extracting tea seed oil, tea seed starch and tea seed protein from camellia seed kernels |
| CN114288213A (en) * | 2021-12-27 | 2022-04-08 | 伊犁紫苏丽人生物科技有限公司 | Novel natural composite tea oil foot soaking gel bead and preparation method thereof |
| CN115820334A (en) * | 2022-12-09 | 2023-03-21 | 吉林省林业科学研究院 | Pilot-scale test process method for preparing shinyleaf yellowhorn oil by ultrasonic composite aqueous enzymatic method |
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