CN103349287A - Method for microencapsulating pitaya peel pigment - Google Patents
Method for microencapsulating pitaya peel pigment Download PDFInfo
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- CN103349287A CN103349287A CN2013102950733A CN201310295073A CN103349287A CN 103349287 A CN103349287 A CN 103349287A CN 2013102950733 A CN2013102950733 A CN 2013102950733A CN 201310295073 A CN201310295073 A CN 201310295073A CN 103349287 A CN103349287 A CN 103349287A
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Abstract
The invention discloses a method for microencapsulating pitaya peel pigment. The method comprises the following steps: A, dissolving a core material (namely pitaya peel pigment) into water, with that, obtaining a core material solution for standby, wherein the concentration of the core material solution is 95-98 percent; B, preparing a wall material, taking and mixing the wall material, and adding cellulose acetate phthalate into the wall material, with that, obtaining a wall material solution for standby; C, mixing the core material solution, the wall material solution, the water and an emulsifier, performing high-pressure homogenization to obtain emulsion, wherein the solid content of the emulsion is 15-30 percent; performing spray drying to the emulsion to obtain the microencapsulated pitaya peel pigment. According to the invention, via microencapsulating the pitaya peel pigment, the stability of the pitaya peel pigment and the solubility of the pitaya peel pigment in a fat-soluble medium are improved, and the technical effect of the food industry application of the pitaya peel pigment is expanded.
Description
Technical field
The present invention relates to a kind of dragon fruit pericarp pigment processing method, in particular a kind of method to dragon fruit pericarp pigment microencapsulation.
Background technology
The dragon fruit pericarp pigment is a kind of water miscible natural red colouring matter, dissolve in the HCl solution of ethanol, acetone, isopropyl alcohol, acetic acid, citric acid, tartaric acid and 0.2mol/L, be slightly soluble in ether and ethyl acetate, this pigment has polarity or low pole molecular substance characteristic, is a kind of polarity or low pole molecular substance.
The dragon fruit pericarp pigment very easily absorbs, and biologically active is strong, has anti-oxidant, the biologically actives such as protection is cardiovascular, anti-sudden change, is widely used in the fields such as food, medicine, cosmetics.In recent years, the dragon fruit pericarp pigment has become a kind of raw material commonly used in China's health food.But, because the dragon fruit pericarp pigment is subject to the impact of external condition, such as easy oxidation, to light, heat, pH value sensitivity etc., and fat-soluble poor, these characteristics have limited the extensive use of dragon fruit pericarp pigment largely.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
The object of the present invention is to provide a kind of method to dragon fruit pericarp pigment microencapsulation, be intended to solve the impact that the dragon fruit pericarp pigment is subject to external condition, limit the technical problem of its extensive use.
Technical scheme of the present invention is as follows: a kind of method to dragon fruit pericarp pigment microencapsulation wherein, may further comprise the steps:
A. core is dissolved in and obtains core solution in the water, for subsequent use, described core is the dragon fruit pericarp pigment, and the concentration of described core solution is 95%-98%;
B. prepare the wall material, get wall material material and mix, then add cellulose acetate-phthalate, obtain wall material solution, for subsequent use;
C. core solution, wall material solution, water and emulsifying agent are mixed, the horizontal high voltage homogeneous of going forward side by side obtains emulsion, and the solid content of described emulsion is 15%-30%, again emulsion is carried out spray-drying, obtains the dragon fruit pericarp pigment of microencapsulation;
Described wall material is any one combination in Arabic gum and maltodextrin, converted starch and Arabic gum, polyethylene glycol and three kinds of combinations of ethyl cellulose;
Homogenization pressure is 30Mpa-40Mpa among the described C, and homogenization cycles is 2-4 time;
Feeding temperature among the described C in the spray-drying process is 50 ℃-60 ℃, and input concentration is 15%-25%, and EAT is 140 ℃-180 ℃, and leaving air temp is 70 ℃-100 ℃, and charging rate is 40ml/min-50ml/min.
Described method to dragon fruit pericarp pigment microencapsulation, wherein, described wall material material is Arabic gum and maltodextrin, the proportioning of described Arabic gum and maltodextrin is 1:1, the proportioning of core and wall material is 1:1.2, perhaps the proportioning of described Arabic gum and maltodextrin is 2:3, and the proportioning of core and wall material is 3:10.
Described method to dragon fruit pericarp pigment microencapsulation, wherein, described wall material material is converted starch and Arabic gum, and the proportioning of described converted starch and Arabic gum is 4:1, and the proportioning of core and wall material is 1:1.
Described method to dragon fruit pericarp pigment microencapsulation, wherein, described wall material material is polyethylene glycol and ethyl cellulose, the proportioning of described polyethylene glycol and ethyl cellulose be 0.4:1,0.6:1,0.8:1,1:1 or 1.2:1 any one, the ratio of core and wall material be 0.5:1,0.75:1 or 1:1 any one.
Described method to dragon fruit pericarp pigment microencapsulation, wherein, described emulsifying agent is any one in lecithin, lactic acid fatty glyceride, butanedioic acid monoglyceride, citric acid fatty glyceride, polyglycereol castor-oil plant alcohol ester, Glycerin, mixed triester with caprylic acid capric acid, Span, konjac glucomannan, the gellan gum.
Described method to dragon fruit pericarp pigment microencapsulation, wherein, the consumption of described emulsifying agent is the 0.25%-1% of emulsion.
Described method to dragon fruit pericarp pigment microencapsulation, wherein, described emulsifying agent is lecithin, consumption is the 0.4%-0.6% of emulsion.
Described method to dragon fruit pericarp pigment microencapsulation, wherein, the consumption of described cellulose acetate-phthalate is the 0.2%-1% of emulsion.
Beneficial effect of the present invention: the present invention processes by the dragon fruit pericarp pigment being carried out microencapsulation, reached and improved the stability of dragon fruit pericarp pigment and the solubility in fat-soluble medium, enlarged the technique effect of the application of dragon fruit pericarp pigment in food industry.
Description of drawings
Fig. 1 is method step flow chart among the present invention.
Fig. 2 is the schematic diagram of dragon fruit pericarp pigment microencapsulation process among the present invention.
The specific embodiment
For making purpose of the present invention, technical scheme and advantage clearer, clear and definite, developing simultaneously referring to accompanying drawing, the present invention is described in more detail for embodiment.
The invention discloses a kind of method to dragon fruit pericarp pigment microencapsulation, as shown in Figure 1, may further comprise the steps:
A. core is dissolved in and obtains core solution in the water, for subsequent use, described core is the dragon fruit pericarp pigment, and the concentration of described core solution is 95%-98%;
B. prepare the wall material, get wall material material and mix, then add cellulose acetate-phthalate, obtain wall material solution, for subsequent use;
C. core solution, wall material solution, water and emulsifying agent are mixed, the horizontal high voltage homogeneous of going forward side by side obtains emulsion, and the solid content of described emulsion is 15%-30%, again emulsion is carried out spray-drying, obtains the dragon fruit pericarp pigment of microencapsulation; Wherein, solid content is defined as emulsion or coating is dried the mass percent that rear remainder accounts for total amount under rated condition, solid content is excessively low, and emulsion stability is poor, and energy consumption is large during spray-drying, microencapsulation efficient is low, and solid content is too high, and the emulsion viscosity is too large, poor fluidity, can make spray-drying process be difficult to carry out, the microencapsulation success rate is low.Draw through inventor's test of many times, when the solid content of emulsion was 15%-30%, the success rate of microencapsulation was higher, and efficient also is guaranteed simultaneously.
Described wall material is any one combination in Arabic gum and maltodextrin, converted starch and Arabic gum, polyethylene glycol and three kinds of combinations of ethyl cellulose.
Concrete, the wall material need to have good film forming (being that ductility is good), high dissolution, and the flowability under good emulsifying capacity, drying property and the liquid state is dissolved the characteristics such as viscosity is low simultaneously, in order to can be wrapped in inside to pigment, carry out smoothly spray-drying.Through the test of inventor to multiple material, draw and utilize above-mentioned three combinations to reach technique effect the best as the wall material, the success rate of microencapsulation is the highest, the inventor also discloses preferably proportioning of one or more effects for each concrete combination simultaneously, the proportioning of concrete core and wall material is disclosed simultaneously, specific as follows: (one) described wall material material is Arabic gum and maltodextrin combination, and proportioning is 1:1, and this moment, the proportioning of core and wall material was 1:1.2; Perhaps, the proportioning of described Arabic gum and maltodextrin is 2:3, and the proportioning of core and wall material is 3:10.(2) or, described wall material material is the combination of converted starch and Arabic gum, proportioning is 4:1, this moment, the proportioning of core and wall material was 1:1.(3) or, described wall material material is polyethylene glycol and ethyl cellulose combination, the proportioning of described polyethylene glycol and ethyl cellulose be 0.4:1,0.6:1,0.8:1,1:1 or 1.2:1 any one, this moment core and wall material ratio be 0.5:1,0.75:1 or 1:1 any one.
In the actual production, the operational procedure of spray dryer is as follows: check the line seal situation before the start, whether inspection door and observation fenestra close, and check whether spray dryer leaks gas, whether the direction of rotation that checks the centrifugal blower operation is correct, whether the regulating butterfly valve in centrifugal blower exit opens (butterfly valve is not shut, otherwise will damage electric heater and intake stack), and the hothouse top is laid the shower nozzle place and whether built (avoiding gas leakage).Check complete after, at first open the spray-drying electromechanical source, EAT and leaving air temp are set, then open centrifugal blower, open again electrical heating, and check whether leak gas, can carry out the stack shell preheating after checking normally, shower nozzle place, hothouse top, hothouse bottom and cyclone separator lower opening must block up tightly during preheating, in order to avoid cold wind enters hothouse, reduce the pre-thermal efficiency.When the hothouse EAT reaches set temperature value, open air compressor, open centrifugal energy nozzle, when shower nozzle reaches maximum speed, open feed pump, add feed liquid, ascending adjustment inlet amount, until leaving air temp is stabilized in about setting value, after spray-drying process finishes, regulate EAT and leaving air temp to room temperature, close centrifugal energy nozzle, when cylinder temperature is down to room temperature, close electric heater and centrifugal blower, collect finished product.
Homogenization pressure is 30Mpa-40Mpa among the described step C, and homogenization cycles is 2-4 time; High-pressure homogeneously can make the material refinement, mix mutually more uniformly, when homogenization pressure is too small, the not good undercompounding that causes of thinning effect, the wall material can't wrap up core fully, causes the failure of dragon fruit pericarp pigment microencapsulation; When homogenization pressure is excessive, then cause easily having wrapped up the wall film rupture of core, cause equally the failure of dragon fruit pericarp pigment microencapsulation; Therefore draw through test of many times, homogenization pressure is when 30Mpa-40Mpa, and the best results that reaches both can make wall material parcel core form the wall film, can not make the wall film rupture again.Simultaneously, can carry out several times during homogeneous, it is firm that this is conducive to the wall film that forms behind the homogeneous, is difficult for breaking, and improves the success rate of dragon fruit pericarp pigment microencapsulation.
Feeding temperature among the described step C in the spray-drying process is 50 ℃-60 ℃, and input concentration is 15%-25%, and EAT is 140 ℃-180 ℃, and leaving air temp is 70 ℃-100 ℃, and charging rate is 40ml/min-50ml/min.In the process to dragon fruit pericarp pigment microencapsulation, the parameters of spray dryer has vital impact to the success rate of microencapsulation, after deliberation, under above-mentioned technological parameter, carry out microencapsulation, getting emulsion stability is 91%, microencapsulation efficient is 94.5%, has obtained preferably technique effect.
In the practical application, described emulsifying agent can be in lecithin, lactic acid fatty glyceride, butanedioic acid monoglyceride, citric acid fatty glyceride, polyglycereol castor-oil plant alcohol ester, Glycerin, mixed triester with caprylic acid capric acid, sorbitan carboxylic esters, konjac glucomannan, the gellan gum any one.Reasonably emulsifying agent can be guaranteed the emulsifying effectiveness of emulsion and carrying out smoothly of spray-drying process, but the too high meeting of emulsifier increases the emulsion viscosity, mobile variation, also can cause waste, emulsifying agent is crossed low Liu affects emulsion stability, after inventor's test of many times, draws when the consumption of emulsifying agent is the 0.25%-1% of emulsion, emulsifying effectiveness is best, and the microencapsulation success rate is the highest simultaneously.
Further, emulsifying agent of the present invention is preferably lecithin, and its consumption is the 0.4-0.6% of emulsion.
In the actual production, when the preparation emulsion, need to add cellulose acetate-phthalate, it should be noted, cellulose acetate-phthalate need to add after wall material material mixes, can realize strengthening the effect of wall film to guarantee cellulose acetate-phthalate, make the wall film be not easy to break, its consumption is the 0.2%-1% of emulsion.
The process of dragon fruit pericarp pigment microencapsulation as shown in Figure 2, pericarp pigment 100 spreads in solution, after adding wall material solution 200, the wall material begins to form the wall film 300 of one deck parcel pericarp pigment 100 around pericarp pigment 100, Deng wall film 300 form stable after, do the indoor thermal current that utilizes of behaviour in spraying the solvent flash evapn of dissolving wall material is removed, impel formation and the curing of wall film 300, realize the microencapsulation of dragon fruit pericarp pigment.
Embodiment 1
Get Arabic gum and the maltodextrin of 1:1, mix, add cellulose acetate-phthalate, obtain wall material solution; Get the dissolving of dragon fruit pericarp pigment, obtain core solution; Wall material solution, core solution, water and emulsifying agent mixing and stirring, the horizontal high voltage homogeneous of going forward side by side obtains emulsion, and wherein, the proportioning of core and wall material is 1:1.2, and the solid content of emulsion is 20%; Again emulsion is carried out spray-drying, obtain the dragon fruit pericarp pigment of microencapsulation.
In the present embodiment, homogenization pressure is 30Mpa, and homogenization cycles is 4 times, and the feeding temperature in the spray-drying process is 50 ℃, and input concentration is 15%, and EAT is 140 ℃, and leaving air temp is 70 ℃, and charging rate is 40ml/min.
In the present embodiment, the consumption of cellulose acetate-phthalate is 0.2% of emulsion.
In the present embodiment, emulsifying agent is the lactic acid fatty glyceride, and consumption is 0.25% of emulsion.
The emulsion stability that obtains in the present embodiment is 90%, and microencapsulation efficient is 93%.
Embodiment 2
Get converted starch and the Arabic gum of 4:1, mix, add cellulose acetate-phthalate, obtain wall material solution; Get the dissolving of dragon fruit pericarp pigment, obtain core solution, wall material solution, core solution, water and emulsifying agent mixing and stirring, the horizontal high voltage homogeneous of going forward side by side obtains emulsion, and wherein, the proportioning of core and wall material is 1:1, and the solid content of emulsion is 15%; Again emulsion is carried out spray-drying, obtain the dragon fruit pericarp pigment of microencapsulation.
In the present embodiment, homogenization pressure is 40Mpa, and homogenization cycles is 2 times, and the feeding temperature in the spray-drying process is 60 ℃, and input concentration is 25%, and EAT is 180 ℃, and leaving air temp is 100 ℃, and charging rate is 50ml/min.
In the present embodiment, the consumption of cellulose acetate-phthalate is 1% of emulsion.
In the present embodiment, emulsifying agent is the butanedioic acid monoglyceride, and consumption is 1% of emulsion.
The emulsion stability that obtains in the present embodiment is 89.5%, and microencapsulation efficient is 93.5%.
Get polyethylene glycol and the ethyl cellulose of 0.8:1, mix, add cellulose acetate-phthalate, obtain wall material solution; Get the dissolving of dragon fruit pericarp pigment, obtain core solution; Wall material solution, core solution, water and emulsifying agent mixing and stirring, the horizontal high voltage homogeneous of going forward side by side obtains emulsion, and wherein, the proportioning of core and wall material is 0.6:1, and the solid content of emulsion is 30%; Again emulsion is carried out spray-drying, obtain the dragon fruit pericarp pigment of microencapsulation.
In the present embodiment, homogenization pressure is 35Mpa, and homogenization cycles is 3 times, and the feeding temperature in the spray-drying process is 60 ℃, and input concentration is 20%, and EAT is 160 ℃, and leaving air temp is 85 ℃, and charging rate is 45ml/min.
In the present embodiment, the consumption of cellulose acetate-phthalate is 0.5% of emulsion.
In the present embodiment, emulsifying agent is preferably lecithin, and its consumption is 0.5% of emulsion.
The emulsion stability that obtains in the present embodiment is 91%, and microencapsulation efficient is 94.5%.
Should be understood that application of the present invention is not limited to above-mentioned giving an example, for those of ordinary skills, can be improved according to the above description or conversion that all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (8)
1. the method to dragon fruit pericarp pigment microencapsulation is characterized in that, may further comprise the steps:
A. core is dissolved in and obtains core solution in the water, for subsequent use, described core is the dragon fruit pericarp pigment, and the concentration of described core solution is 95%-98%;
B. prepare the wall material, get wall material material and mix, then add cellulose acetate-phthalate, obtain wall material solution, for subsequent use;
C. core solution, wall material solution, water and emulsifying agent are mixed, the horizontal high voltage homogeneous of going forward side by side obtains emulsion, and the solid content of described emulsion is 15%-30%, again emulsion is carried out spray-drying, obtains the dragon fruit pericarp pigment of microencapsulation;
Described wall material is any one combination in Arabic gum and maltodextrin, converted starch and Arabic gum, polyethylene glycol and three kinds of combinations of ethyl cellulose;
Homogenization pressure is 30Mpa-40Mpa among the described C, and homogenization cycles is 2-4 time;
Feeding temperature among the described C in the spray-drying process is 50 ℃-60 ℃, and input concentration is 15%-25%, and EAT is 140 ℃-180 ℃, and leaving air temp is 70 ℃-100 ℃, and charging rate is 40ml/min-50ml/min.
2. the method to dragon fruit pericarp pigment microencapsulation according to claim 1, it is characterized in that, described wall material material is Arabic gum and maltodextrin, the proportioning of described Arabic gum and maltodextrin is 1:1, the proportioning of core and wall material is 1:1.2, perhaps the proportioning of described Arabic gum and maltodextrin is 2:3, and the proportioning of core and wall material is 3:10.
3. the method to dragon fruit pericarp pigment microencapsulation according to claim 1 is characterized in that, described wall material material is converted starch and Arabic gum, and the proportioning of described converted starch and Arabic gum is 4:1, and the proportioning of core and wall material is 1:1.
4. the method to dragon fruit pericarp pigment microencapsulation according to claim 1, it is characterized in that, described wall material material is polyethylene glycol and ethyl cellulose, the proportioning of described polyethylene glycol and ethyl cellulose be 0.4:1,0.6:1,0.8:1,1:1 or 1.2:1 any one, the ratio of core and wall material be 0.5:1,0.75:1 or 1:1 any one.
5. the described method to dragon fruit pericarp pigment microencapsulation of any one according to claim 2-4, it is characterized in that described emulsifying agent is any one in lecithin, lactic acid fatty glyceride, butanedioic acid monoglyceride, citric acid fatty glyceride, polyglycereol castor-oil plant alcohol ester, Glycerin, mixed triester with caprylic acid capric acid, Span, konjac glucomannan, the gellan gum.
6. the method to dragon fruit pericarp pigment microencapsulation according to claim 5 is characterized in that, the consumption of described emulsifying agent is the 0.25%-1% of emulsion.
7. the method to dragon fruit pericarp pigment microencapsulation according to claim 6 is characterized in that, described emulsifying agent is lecithin, and consumption is the 0.4%-0.6% of emulsion.
8. the method to dragon fruit pericarp pigment microencapsulation according to claim 7 is characterized in that, the consumption of described cellulose acetate-phthalate is the 0.2%-1% of emulsion.
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| CN105295439A (en) * | 2015-12-02 | 2016-02-03 | 武汉绿孚生物工程有限责任公司 | Preparation method of microencapsulated gardenia yellow pigment |
| CN106009763A (en) * | 2016-05-25 | 2016-10-12 | 华南理工大学 | Method for extracting natural red pigment from pitaya and application thereof |
| CN109370298A (en) * | 2018-10-16 | 2019-02-22 | 惠州市舜丰印材科技有限公司 | A kind of edible water-based ink and preparation method thereof with microcapsule structure |
| CN110367441A (en) * | 2019-07-03 | 2019-10-25 | 广东工业大学 | A kind of preparation method of dragon fruit haematochrome microcapsules |
| CN110583973A (en) * | 2019-10-16 | 2019-12-20 | 广西壮族自治区农业科学院 | Preparation method of pitaya peel haematochrome microcapsule |
| CN112494456A (en) * | 2020-12-16 | 2021-03-16 | 西南石油大学 | Ethyl cellulose hollow microcapsule |
| CN115386019A (en) * | 2022-10-10 | 2022-11-25 | 杭州唯铂莱生物科技有限公司 | 3, 4-dihydroxy phenylethanol dextrin inclusion compound and preparation method and application thereof |
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| CN105295439A (en) * | 2015-12-02 | 2016-02-03 | 武汉绿孚生物工程有限责任公司 | Preparation method of microencapsulated gardenia yellow pigment |
| CN105295439B (en) * | 2015-12-02 | 2017-06-16 | 武汉绿孚生物工程有限责任公司 | A kind of preparation method of microencapsulation Gardenia Yellow |
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| CN109370298A (en) * | 2018-10-16 | 2019-02-22 | 惠州市舜丰印材科技有限公司 | A kind of edible water-based ink and preparation method thereof with microcapsule structure |
| CN110367441A (en) * | 2019-07-03 | 2019-10-25 | 广东工业大学 | A kind of preparation method of dragon fruit haematochrome microcapsules |
| CN110583973A (en) * | 2019-10-16 | 2019-12-20 | 广西壮族自治区农业科学院 | Preparation method of pitaya peel haematochrome microcapsule |
| CN112494456A (en) * | 2020-12-16 | 2021-03-16 | 西南石油大学 | Ethyl cellulose hollow microcapsule |
| CN116076731A (en) * | 2022-09-20 | 2023-05-09 | 湖南营养树生物科技有限公司 | Probiotic preparation with high immunity activity and preparation method thereof |
| CN116076731B (en) * | 2022-09-20 | 2024-04-26 | 湖南营养树生物科技有限公司 | Probiotic preparation with high immunity activity and preparation method thereof |
| CN115386019A (en) * | 2022-10-10 | 2022-11-25 | 杭州唯铂莱生物科技有限公司 | 3, 4-dihydroxy phenylethanol dextrin inclusion compound and preparation method and application thereof |
| CN115386019B (en) * | 2022-10-10 | 2023-09-08 | 杭州唯铂莱生物科技有限公司 | 3, 4-dihydroxybenzene ethanol dextrin inclusion compound, and preparation method and application thereof |
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