CN1312036A - Concentrated carrot juice with high carotene content and its preparation - Google Patents
Concentrated carrot juice with high carotene content and its preparation Download PDFInfo
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- CN1312036A CN1312036A CN 01102248 CN01102248A CN1312036A CN 1312036 A CN1312036 A CN 1312036A CN 01102248 CN01102248 CN 01102248 CN 01102248 A CN01102248 A CN 01102248A CN 1312036 A CN1312036 A CN 1312036A
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Abstract
The present invention provides a carrot concentrated juice with high carotene content and its preparation method. Said preparation method includes the steps of preboiling, grinding, separating, filtering and packaging, and its technical key lies in that after the carrot is preboiled, it adopts the following process of washing to remove 60-90 % of soluble solids, diluting by adding waer, grinding to break cell wall, separating and fine filtering, deoxidation, blending, concentrating, sterilizing and packaging. The soluble solids content in the concentrated juice can be up to 30-60%, the carotenoid content can be up to 25-60 mg/100ml, so it can meet the requirements for raw material of medicine health-care industry.
Description
The present invention relates to a kind of carrot condensed juice and preparation method of high carotene content, belong to food processing technology field, especially the industrialization raw material of functional health-care food.
The production technology of carrot condensed juice has two kinds at present:
1. first kind of similar apple of process using technology of squeezing the juice: the clean raw meal of carrot is broken into irregular graininess → interpolation acid, pectase → enter sheath tube heater the graininess carrot is heat-treated with squirrel-cage crusher, temperature 90-95 ℃, 8-15 minute heat time heating time → enter belt-style press machine squeezing → juice, slag separation → squeezing carrot juice through the smart filter of high speed centrifugation → concentrated → sterilization → aseptic sack packaging.
The crushing juice rate of this technology can reach 65-70%, the soluble solid content 8-10% of squeezing juice, the carotenoid content 2-2.5mg/100ml in the juice.Squeezing juice is through concentrating when soluble solid reaches 40%, and the carotenoid content of inspissated juice is generally 8-12mg/100mL.
2. second kind of process using centrifuge separation and Extraction carrot juice: the clean raw meal of carrot is broken into irregular graininess → interpolation acid, pectase → enter sheath tube heater graininess carrot to heat-treat with squirrel-cage crusher, temperature 90-95 ℃, 8-15 minute heat time heating time → employing beater is ground into particle less than 0.6m → carry out juice, slag separation → isolated carrot juice again through the smart filter of high speed centrifugation → concentrate → sterilization → aseptic sack packaging with centrifuge with the daucus carrot particles of slaking.
The crushing juice rate of this technology can reach 65-75%, through its soluble solid content of juice 8-10% of centrifugal smart filter, the carotenoid content 2.5-3.5mg/100ml of carrot juice.The smart filtered juice of carrot is through concentrating when the capacitive solid content reaches 40%, and the carotenoid content of inspissated juice is generally 10-18mg/100mL.
More than the common problems that exist of two kinds of technology:
1. in the pretreatment stage of squeezing the juice, the degree of grinding of carrot all is the cell bulk, and water-soluble components (sugar part, organic acid, vitamin C etc.) and fat-soluble composition carrotene are wrapped in the cell membrane.
2. squeeze or when carrying out centrifugation, its viscosity of the little massive texture of carrot through pulverizing is bigger, water-soluble generation branch is easy to separate and a large amount of fat-soluble carrotene is wrapped in the small tissue blocks not easily separatedly, and the carrotene recovery rate is generally at 15-25%.
3. the soluble solid content of carrot juice has determined cycles of concentration before concentrating.Traditional handicraft does not abandon having restricted under the situation of soluble solid the cycles of concentration of carrot juice, and the carotene carotene content in the carrot condensed juice is generally about 8-18mg/100mL.
The object of the present invention is to provide a kind of carrot condensed juice of high carotene content,, reduce packing of product cost of transportation, satisfy the needs of the medicines and health protection product raw material of industry to improve the utilization rate of carrot material effective component.
Technical scheme of the present invention is achieved in that the solvable living solid content 30-60% of the carrot condensed juice of this high carotene content, carotenoid content 25-60mg/100ml.
The preparation method of the carrot condensed juice of this high carotene content comprise carrot through precook, defibrination, separation, smart filter, concentrate, sterilization, packing, key problem in technology is the solvable living solid content that removes 60-90% after carrot is precooked again through rinsing, the thin up defibrination, make breaking-wall cell, separate smart filter, deoxidation, allotment concentrates, sterilizes, packs.
Carrot pre-cooking process described in the preparation method of the carrot condensed juice of described high carotene content comprises precooks diced carrot, sheet, silk 5-15 minute in 90-100 ℃ according to: the ratio of carrot/water/acetate=1/1 ± 0.2/0.003-0.004 (w/w), abandons to boil water in advance.
Carrot pre-cooking process described in the preparation method of the carrot condensed juice of described high carotene content comprises that also the use citric acid substitutes acetate, and its ratio is: carrot/water/citric acid=1/1 ± 0.2/0.001-0.003.
Carrot pre-cooking process described in the preparation method of the carrot condensed juice of described high carotene content also comprises use citric acid, acetate mixed acid, and its ratio is: carrot/water/citric acid/acetate=1/1 ± 0.2/0.001-0.002/0.001-0.002.
Carrot pre-cooking process described in the preparation method of the carrot condensed juice of described high carotene content also comprises use acid and pectase mixed liquor, and its ratio is: carrot/water/acetate/fruit is handed over enzyme=1/1 ± 0.2/0.001-0.002/0.001-0.0015.
The carrot rinsing process comprises among the preparation method of the carrot condensed juice of described high carotene content: according to carrot/water=1/0.5-1.5, rinsing 1-20 minute, abandon washings.
Carrot refining process described in the preparation method of the carrot condensed juice of described high carotene content comprises: the ratio according to carrot/water=1/0.1-1.2 adds pure water, through corase grind, it is the 2-50 micron that correct grinding makes carrot material fineness, 90% above cell membrane fragmentation.
Carrot juice described in the preparation method of the carrot condensed juice of described high carotene content, slag separating technology comprise: filter cloth press filtration of 200-300 order or centrifugation.
Carrot deoxidization technique described in the preparation method of the carrot condensed juice of described high carotene content is that the carrot juice after juice, slag separate enters degassing tank immediately, removes the gas in the carrot juice under vacuum 0.06-0.085Mpa condition.
Carrot allocating technology described in the preparation method of the carrot condensed juice of described high carotene content is to add acid to regulate pH≤4.5.
Carrot concentration technology described in the preparation method of the carrot condensed juice of described high carotene content comprises that the temperature of charge that enters before the vaporization chamber is less than 85 ℃, with the concentrated soluble solid 30-60%, carotenoid content 25-60mg/100ml of reaching of carrot juice.
The present invention has overcome fruit juice and has processed the traditional concept that as far as possible keeps whole compositions, soluble solid composition major part in the carrot is abandoned, made the carrot condensed juice of the highly enriched ratio of processing become possibility under the lazy condition that soluble solid content is lower in carrot juice.The carrot that the abundant chemistry of warp is precooked, breaking-wall cell separates fat-soluble carrotene composition as much as possible behind the thin up with cell membrane, the carrotene recovery rate can reach more than 50%, adopt processing technology of the present invention also can remove the pollutant of enrichment in the carrot such as nitrite etc., the concentrated carrot juice product of preparation possesses good organoleptic attribute, and (it is orange red that color and luster is, free from extraneous odour), health-care is worth greatly and improves.
Describe technology contents of the present invention in detail below in conjunction with embodiment:
Embodiment: 1, technological process:
Carrot raw material → cleaning → peeling → choosing fruit → clean raw material → (sheet, silk) → chemistry of dicing precook → discharge chemistry to boil water in advance → water purification rinsing → discharging washings → quantitatively add pure water → coarse crushing → corase grind → fine grinding → juice, slag separation-juice essence filter → deoxidation → allotment → concentrated → sterilization → aseptic sack packaging → inspissated juice finished product.2, common processes part:
Carrot raw material → cleaning → peeling → choosing fruit → clean raw material → dice (sheet, silk) 3, critical process part:
Chemistry precook → discharge chemistry to boil water in advance → technological parameter of water purification rinsing → discharging washings → quantitatively add pure water → coarse crushing → corase grind → fine grinding → juice, slag separation → juice essence filter → deoxidation → allotment → concentrated → sterilization → aseptic sack packaging → inspissated juice finished product 4, critical process:
A. chemistry is precooked:
Technology purpose: the colloidal substance that destroys the space between cells; Reduce the pH value of carrot; Solable matter in the carrot (sugar part, smell substance, polluter nitrate etc.) is dissolved in the liquid of precooking.Chemistry precook prescription (weight ratio) a, carrot (fourth, sheet, silk): water purification: acetate=1: 1 ± 0.2: 0.003-0.004b, carrot (fourth, sheet, silk): water purification: citric acid=1: 1 ± 0.2: 0.001-0.003c, carrot (fourth, sheet, silk)/water/citric acid/acetate=1/1 ± 0.2/0.001-0.002/0.001-0.002.D, carrot (fourth, sheet, silk)/water/acetate/pectase=1/1 ± 0.2/0.001-0.002/0.001-0.0015.Chemistry is precooked temperature and time: temperature 90-100 ℃, time 5-15 minute
B. it is to boil water in advance to discharge chemistry:
The technology purpose: the discharging chemistry is pre-to boil water can be with the solable matter in the carrot (sugar part, smell substance etc.) with the pre-eliminating to boil water of chemistry, through precook, arrange pre-to boil water after, soluble solid in the carrot is reduced to the 30-40% of fresh feed, and fat-soluble carrotene only loses the tangent plane part of carrot raw material, and the carrotene loss that is wrapped in the cell is minimum.
C. water purification rinsing:
Technology purpose: further the solable matter in the carrot (sugar part, smell substance, polluter nitrate etc.) is dissolved in the washings, reduces the content of solable matter in the carrot.
Carrot (fourth, sheet, silk): washings (weight ratio)=1: 0.5-1.5
1-20 minute rinsing time, the rinsing time is long more, and the amount that the solable matter in the carrot dissolves in the washings is big more, and the carrot soluble solid content is low more, and the cycles of concentration when concentrating increases with the reduction of solubility thing content.
D. discharge washings:
The technology purpose: behind the discharging washings, the soluble solid in the carrot (fourth, sheet, silk) is reduced to the 10-30% of fresh feed.
E. quantitatively add pure water
Technology purpose: the recovery rate that improves fat-soluble carrotene.
Carrot (fourth, sheet, silk): add pure water (weight ratio)=1: 0.1-1.2
F. coarse crushing, corase grind, fine grinding:
The technology purpose: carrot cell is fully broken, make fat-soluble carrotene be dispersed and be present between liquid and broken cell membrane.
Coarse crushing can be adopted cage mill or hammer or rotator type boulder crusher, broken back less than the particle of 3mm greater than 80%.
Corase grind, fine grinding all adopt stainless steel to hand over the body mill, transfer to maximal clearance (0.5mm) during corase grind, and fine grinding transfers to minimum clearance (0.005mm).Carrot material fineness is the 2-50 micron after the fine grinding, the cell membrane fragmentation more than 90%, and carrotene and nucleic acid substances fully overflow.
G. juice, slag separate:
Can adopt plate and frame type filter-press, filter cloth 200-300 order, press filtration pressure 0.6-1.2Mpa.Also can adopt horizontal spiral discharge sedimentation centrifuge, 3000-4000 rev/min, separation factor is greater than 4000.
H. the smart filter of juice:
Can adopt filter press, filter cloth 300 orders, pressure 0.3-0.6Mpa.Also can adopt dish formula supercentrifuge, 8000-10000 rev/min.
I. deoxidation:
Vacuum 0.06-0.085Mpa removes the gas that carrot juice is sneaked in process.
J. allotment:
By adding citric acid, the carrot juice pH value after the deoxidation is adjusted to≤4.5.
K. concentrate:
Through precook, carrot juice behind the rinsing process, soluble solid content is generally at 2-3%, based on this soluble solid content, enter the preceding temperature of charge of vaporization chamber less than 85 ℃, when being concentrated into solvable life and opening thing admittedly and reach 40%, cycles of concentration reaches 13-20 doubly, and the carotene carotene content of measuring this moment can reach 30-60mg/100ml.
Concentrator can adopt single-action, economic benefits and social benefits, the triple effect evaporator of inspissated juice, wherein concentrates best in quality with the falling film type triple effect evaporator.Concentrator also can adopt the triple effect evaporator of catsup, when adopting the catsup process equipment, to concentrate quality and should take low liquid level (less than 50%) operation in order to improve, the carrot juice that is concentrated enters temperature before the vaporization chamber after through a tube still heater of imitating and should control and be not more than 85 ℃.
L. sterilization:
Sterilization temperature is 108-110 ℃ when concentrating, and sterilizer generally adopts automatic program control.
M. aseptic sack packaging:
Adopt aseptic clad aluminum pool bag filling machine, 28-32 ℃ of can temperature.
In order better to compare with prior art, the present invention introduces carrotene recovery rate and two concepts of carrot juice cycles of concentration: carrotene recovery rate (%)=
The raising of recovery rate be by abundant chemistry precook, the abundant wall breaking technology of thin up, cell realizes, Making fat-soluble carrotene composition be dispersity is present between the broken cell membrane.
And cycles of concentration improve be by precook, rinsing and abandon precooking, most of water in the washings The dissolubility solid content realizes that the reduction of water-soluble solid content is improved cycles of concentration.
Claims (12)
1. the carrot condensed juice of high carotene content is characterized in that soluble solid content 30-60%, carotenoid content 25-60mg/100ml.
The preparation method of the carrot condensed juice of high carotene content comprise carrot through precook, defibrination, separation, smart filter, concentrate, sterilization, packing, it is characterized in that removing through rinsing again after carrot is precooked the soluble solid of 60-90%, the thin up defibrination, make breaking-wall cell, separate smart filter, deoxidation, allotment concentrates, sterilizes, packs.
3. the preparation method of the carrot condensed juice of high carotene content according to claim 2, it is characterized in that described carrot pre-cooking process comprises precooks diced carrot, sheet, silk 5-15 minute in 90-100 ℃ according to: the ratio of carrot/water/acetate=1/1 ± 0.2/0.003-0.004 (w/w), abandons to boil water in advance.
4. the preparation method of the carrot condensed juice of high carotene content according to claim 3, it is characterized in that described carrot pre-cooking process comprises that also the use citric acid substitutes acetate, its ratio is: carrot/water/citric acid=1/1 ± 0.2/0.001-0.003.
5. the preparation method of the carrot condensed juice of high carotene content according to claim 3, it is characterized in that described carrot pre-cooking process also comprises use citric acid, acetate mixed acid, its ratio is: carrot/water/citric acid/acetate=1/1 ± 0.2/0.001-0.002/0.001-0.002.
6. the preparation method of the carrot condensed juice of high carotene content according to claim 3, it is characterized in that described carrot pre-cooking process also comprises use acid and pectase mixed liquor, its ratio is: carrot/water/acetate/pectase=1/1 ± 0.2/0.001-0.002/0.001-0.0015.
7. the preparation method of the carrot condensed juice of high carotene content according to claim 2 is characterized in that described carrot rinsing process comprises according to carrot/water=1/0.5-1.5, rinsing 1-20 minute, abandons washings.
8. the preparation method of the carrot condensed juice of high carotene content according to claim 2, it is characterized in that described carrot refining process comprises: the ratio according to carrot/water=1/0.1-1.2 adds pure water, through corase grind, it is the 2-50 micron that correct grinding makes carrot material fineness, 90% above cell membrane fragmentation.
9. the preparation method of the carrot condensed juice of high carotene content according to claim 2 is characterized in that described carrot juice, slag separating technology comprise: filter cloth press filtration of 200-300 order or centrifugation.
10. the preparation method of the carrot condensed juice of high carotene content according to claim 2, it is characterized in that described carrot deoxidization technique is that carrot juice after juice, slag separate enters degassing tank immediately, removes the gas in the carrot juice under vacuum 0.06-0.085Mpa condition.
11. the preparation method of the carrot condensed juice of high carotene content according to claim 2 is characterized in that described carrot allocating technology is to add acid to regulate pH≤4.5.
12. the preparation method of the carrot condensed juice of high carotene content according to claim 2, it is characterized in that described carrot concentration technology comprises that the temperature of charge that enters before the vaporization chamber is less than 85 ℃, with the concentrated soluble solid 30-60%, carotenoid content 25-60mg/100ml of reaching of carrot juice.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 01102248 CN1122459C (en) | 2001-01-20 | 2001-01-20 | Concentrated carrot juice with high carotene content and its preparation |
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| CN 01102248 CN1122459C (en) | 2001-01-20 | 2001-01-20 | Concentrated carrot juice with high carotene content and its preparation |
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| CN1312036A true CN1312036A (en) | 2001-09-12 |
| CN1122459C CN1122459C (en) | 2003-10-01 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100356875C (en) * | 2005-07-08 | 2007-12-26 | 黑龙江大丰农业科技有限公司 | Technique for producing condensed juice of carrot through low evaporation, and condensed berry with no evaporation |
| CN104187928A (en) * | 2014-07-29 | 2014-12-10 | 武汉绿孚生物工程有限责任公司 | Preparation method of black carrot concentrated juice |
| CN105124689A (en) * | 2015-08-03 | 2015-12-09 | 重庆市丹青生物技术有限公司 | Processing method and application of carmine red radish condensed juice products |
| CN105533548A (en) * | 2016-01-13 | 2016-05-04 | 山东鲁菱果汁有限公司 | Carrot pulp and making method thereof |
| CN112876396A (en) * | 2021-01-26 | 2021-06-01 | 中华全国供销合作总社济南果品研究院 | Method for preparing concentrated carotene by using rotary ceramic membrane equipment |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101972018B (en) * | 2010-10-11 | 2012-05-23 | 洪兴华 | Medicinal and health-care concentrated carrot juice and preparation method thereof |
-
2001
- 2001-01-20 CN CN 01102248 patent/CN1122459C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100356875C (en) * | 2005-07-08 | 2007-12-26 | 黑龙江大丰农业科技有限公司 | Technique for producing condensed juice of carrot through low evaporation, and condensed berry with no evaporation |
| CN104187928A (en) * | 2014-07-29 | 2014-12-10 | 武汉绿孚生物工程有限责任公司 | Preparation method of black carrot concentrated juice |
| CN104187928B (en) * | 2014-07-29 | 2016-03-16 | 武汉绿孚生物工程有限责任公司 | A kind of preparation method of black carrot condensed juice |
| CN105124689A (en) * | 2015-08-03 | 2015-12-09 | 重庆市丹青生物技术有限公司 | Processing method and application of carmine red radish condensed juice products |
| CN105533548A (en) * | 2016-01-13 | 2016-05-04 | 山东鲁菱果汁有限公司 | Carrot pulp and making method thereof |
| CN112876396A (en) * | 2021-01-26 | 2021-06-01 | 中华全国供销合作总社济南果品研究院 | Method for preparing concentrated carotene by using rotary ceramic membrane equipment |
| CN112876396B (en) * | 2021-01-26 | 2023-01-24 | 中华全国供销合作总社济南果品研究院 | Method for preparing concentrated carotene by using rotary ceramic membrane equipment |
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| CN1122459C (en) | 2003-10-01 |
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