CN105061529A - Extraction process of mulberry anthocyanin - Google Patents

Extraction process of mulberry anthocyanin Download PDF

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Publication number
CN105061529A
CN105061529A CN201510541533.5A CN201510541533A CN105061529A CN 105061529 A CN105061529 A CN 105061529A CN 201510541533 A CN201510541533 A CN 201510541533A CN 105061529 A CN105061529 A CN 105061529A
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China
Prior art keywords
ethanol
extraction process
post
anthocyanogen
mulberry anthocyanin
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CN201510541533.5A
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Chinese (zh)
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文继承
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GUILIN MINGXING BIOTECHNOLOGY Co Ltd
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GUILIN MINGXING BIOTECHNOLOGY Co Ltd
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Priority to CN201510541533.5A priority Critical patent/CN105061529A/en
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Abstract

The invention provides an extraction process of mulberry anthocyanin. The extraction process comprises the following steps that 1, mulberries are crushed, acidified alcohol is added for reflux extraction, and anthocyanin crude extract is obtained; 2, the anthocyanin crude extract is fed to an HPD-300 type macroporous resin column, effluent is collected, the column is washed with distilled water till the column is colorless, the column is washed with an ethanol solution with the volume concentration of 40%-50%, and ethanol eluant is collected; 3, the effluent in the step 2 is fed to an AB-8 type macroporous resin column, the column is washed with an ethanol solution with the volume concentration of 80%-95%, and ethanol eluant is collected; 4, the ethanol eluant in the step 2 and the step 3 are mixed, ethanol is recycled through vacuum concentration, vacuum freeze drying is carried out, and mulberry anthocyanin powder is obtained. The extracted mulberry anthocyanin is stable in character and high in color value.

Description

The extraction process of Mulberry anthocyanin
Technical field
The present invention relates to a kind of plant extraction process, be specifically related to a kind of extraction process of Mulberry anthocyanin.
Background technology
Mulberries have another name called sorosis mulberry jujube, comparatively large in the ground such as south China and Xinjiang output, containing abundant activated protein, VITAMIN, amino acid, carotene, mineral matter and other components in mulberries fruit.Containing abundant anthocyanogen in mulberries, anthocyanogen trains base and the sugared class polyphenolic compound be combined into by glycosidic link by anthocyanogen, is extensively present in the enchylema of the flower of plant, fruit, stem, leaf and root organ.Functional due to its uniqueness, and be applied to removing interior free yl, antitumor, anticancer, anti-inflammatory, anti-lipid peroxidation and platelet aggregation, prevent diabetes, fat-reducing, vision protection etc.Anthocyanin is as a kind of natural pigment, safe, nontoxic, and has many nourishing functions to human body, has been applied to the industries such as food, healthcare products, makeup, medicine.
The extracting and purifying method of anthocyanogen now adopts solvent extration, supercritical fluid extraction, ultrasonic-assisted extraction method or Enzymatic Extraction to obtain anthocyanogen mulberries slightly to extract, wherein still subtract containing colloid, starch, carbohydrate, fat, organic acid, inorganic salt, metal ion etc., even have special peculiar smell, and then method of analysis is adsorbed in employing, membrane separation process is further purified.Because anthocyanogen character is unstable, in extraction purification process, can there is degraded and cause and fade in anthocyanogen, the anthocyanogen look valency of extraction is low, and tinting strength is poor.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of extraction process of Mulberry anthocyanin, the Mulberry anthocyanin stable in properties that this technique is extracted, and look valency is high.
Technical scheme provided by the invention is to provide a kind of method extracting anthocyanogen from mulberries, comprises the following steps:
1) mulberries are broken, add volumetric concentration be 40 ~ 50% and pH value be 2.0 ~ 4.0 acidic ethanol refluxing extraction 1 ~ 3 time, extract 1 ~ 3h at every turn, merged by extracting solution, filter, filtrate is anthocyanogen crude extract;
2) by HPD-300 type macroporous resin column on anthocyanogen crude extract, collect effluent liquid, with distillation washing post to colourless, then be that 40 ~ 50% ethanolic solns wash post by volumetric concentration, collect ethanol eluate;
3) by step 2) in effluent liquid on AB-8 type macroporous resin column, be that 80 ~ 95% ethanolic solns wash post by volumetric concentration, collect ethanol eluate;
4) by step 2) and step 3) ethanol eluate merge, concentrating under reduced pressure reclaim ethanol, vacuum lyophilization, obtains Mulberry anthocyanin powder.
Step 2) in, the upper column flow rate of anthocyanogen crude extract is 2.0 ~ 3.5BV/h, and distillation washing post speed is 1 ~ 3BV/h, and post speed washed by ethanol is 2.0 ~ 3.5BV/h.
Step 3) in, the upper column flow rate of effluent liquid is 2.0 ~ 3.5BV/h, and post speed washed by ethanol is 2.0 ~ 3.5BV/h.
Step 4) in, described concentrating under reduced pressure refers at-0.05 ~-0.09MPa, at 45 ~ 55 DEG C and carries out.
Anthocyanogen crude extract is first gone up HPD-300 type macroporous resin column, this resin is non-polar resin, and its mean pore size is 5.0 ~ 5.5nm, and specific surface area is 800 ~ 870m 2/ g, comparatively strong to the adsorptive power of glycoside material, its aperture is less in addition, just adapt with anthocyanogen molecule, HPD-300 type resin meeting Preferential adsorption anthocyanogen until saturated, and reduces greatly to the adsorptive power of other impurity, considerably increases the purity of anthocyanogen in subsequent ethanol elutriant.The macromolecular substance such as the flavonols in crude extract, flavonoid, polyose and protein then cannot enter resin hole, directly flow out without absorption, therefore, containing macromolecular substance such as a large amount of flavonols, polyose and protein in effluent liquid.
By AB-8 type macroporous resin column on the effluent liquid of HPD-300 type macroporous resin column, AB-8 type macroporous resin is low-pole resin, and its mean pore size is 13.0 ~ 14.0nm, and specific surface area is 480 ~ 520m 2/ g, because AB-8 type macroporous resin aperture is larger, macromolecular polysaccharide in effluent liquid and protein still cannot pass through AB-8 type resin hole, but flavonols and Flavonoid substances then can to enter in resin hole and smoothly by resin absorption, wash post with 80 ~ 95v% ethanolic soln, flavonols and flavonoid class material elutes can be got off.
By step 2) in ethanol eluate and step 3) ethanol eluate mixing, mix with flavonoid and flavonols by anthocyanogen, Flavonoid substances and flavonols form mixture by hydrogen bond and hydrophobic bond and anthocyanogen, anthocyanogen stability is improved, and mixture makes anthocyanogen be absorbed in the obvious red shift in visible region to light, increase its specific absorbance simultaneously, thus substantially increase the look valency of finished product, thus improve the tinting strength of product.
Compared with prior art, the present invention has following beneficial effect:
1) adopt HPD-300 type macroporous resin can adsorb anthocyanogen to greatest extent, do not adsorb other impurity again, after ethanol elution, in elutriant, the purity of anthocyanogen is high.
2) by the effluent liquid of HPD-300 type macroporous resin again through AB-8 type macroporous resin adsorption, after ethanol elution, in elutriant flavonol and Flavonoid substances purity higher.
3) by two groups of elutriant mixing, make anthocyanogen and flavonol, Flavonoid substances form mixture, greatly strengthen stability and the look valency of finished product anthocyanogen.
Embodiment
The present invention is further elaborated for following specific embodiment, but not as a limitation of the invention.
Embodiment 1
1) 1kg mulberries are broken, add volumetric concentration be 40% and pH value be 2.0 acidic ethanol refluxing extraction 1 time, extract 1h at every turn, merged by extracting solution, filter, filtrate is anthocyanogen crude extract;
2) by HPD-300 type macroporous resin column on anthocyanogen crude extract, the upper column flow rate of anthocyanogen crude extract is 2.0BV/h, collect effluent liquid, with distillation washing post to colourless, distillation washing post speed is 1BV/h, be that 40% ethanolic soln washes post by volumetric concentration again, post speed washed by ethanol is 2.0BV/h, collects ethanol eluate;
3) by step 2) in effluent liquid on AB-8 type macroporous resin column, upper column flow rate is 2.0BV/h, and be that 80% ethanolic soln washes post by volumetric concentration, post speed washed by ethanol is 2.0BV/h, collect ethanol eluate;
4) by step 2) and step 3) ethanol eluate merge, at-0.05MPa, concentrating under reduced pressure reclaims ethanol at 45 DEG C, and vacuum lyophilization, obtains Mulberry anthocyanin powder.Through weighing, Mulberry anthocyanin powder weight is 1.58g, and purity is 86.1%.
The look valency of Mulberry anthocyanin extract is measured by the method (Jiangsu's agriculture journal, 2004,20 (2): 111 ~ 115) of bibliographical information.Mulberry anthocyanin powder is mixed with the solution that mass concentration is 0.025%, puts into the cuvette that 1cm is thick, under 535nm wavelength, measure the absorbance A of extracting solution under different extracting condition, and calculate look valency with this A value.The method that its look valency calculates is undertaken by following formula
In formula, A is absorbancy; M is the quality (g) of sample; 1% is sample concentration; 1cm is the absorbance under cuvette maximum absorption wavelength.
As calculated, the look valency of Mulberry anthocyanin powder is 110.
Embodiment 2
1) 1kg mulberries are broken, add volumetric concentration be 50% and pH value be 4.0 acidic ethanol refluxing extraction 3 times, extract 3h at every turn, merged by extracting solution, filter, filtrate is anthocyanogen crude extract;
2) by HPD-300 type macroporous resin column on anthocyanogen crude extract, the upper column flow rate of anthocyanogen crude extract is 3.5BV/h, collect effluent liquid, with distillation washing post to colourless, distillation washing post speed is 3BV/h, be that 50% ethanolic soln washes post by volumetric concentration again, post speed washed by ethanol is 3.5BV/h, collects ethanol eluate;
3) by step 2) in effluent liquid on AB-8 type macroporous resin column, upper column flow rate is 3.5BV/h, and be that 95% ethanolic soln washes post by volumetric concentration, post speed washed by ethanol is 3.5BV/h, collect ethanol eluate;
4) by step 2) and step 3) ethanol eluate merge, at-0.09MPa, concentrating under reduced pressure reclaims ethanol at 55 DEG C, and vacuum lyophilization, obtains Mulberry anthocyanin powder.Through weighing, Mulberry anthocyanin powder weight is 1.62g, and purity is 86.1%.Calculating look valency according to the method for embodiment 1 is 123.
Embodiment 3
1) 1kg mulberries are broken, add volumetric concentration be 45% and pH value be 3.0 acidic ethanol refluxing extraction 2 times, extract 2h at every turn, merged by extracting solution, filter, filtrate is anthocyanogen crude extract;
2) by HPD-300 type macroporous resin column on anthocyanogen crude extract, the upper column flow rate of anthocyanogen crude extract is 3BV/h, collect effluent liquid, with distillation washing post to colourless, distillation washing post speed is 2BV/h, be that 45% ethanolic soln washes post by volumetric concentration again, post speed washed by ethanol is 3BV/h, collects ethanol eluate;
3) by step 2) in effluent liquid on AB-8 type macroporous resin column, upper column flow rate is 3BV/h, and be that 90% ethanolic soln washes post by volumetric concentration, post speed washed by ethanol is 3BV/h, collect ethanol eluate;
4) by step 2) and step 3) ethanol eluate merge, at-0.07MPa, concentrating under reduced pressure reclaims ethanol at 50 DEG C, and vacuum lyophilization, obtains Mulberry anthocyanin powder.Through weighing, Mulberry anthocyanin powder weight is 1.63g, and purity is 86.1%.Calculating look valency according to the method for embodiment 1 is 116.

Claims (4)

1. the extraction process of Mulberry anthocyanin, is characterized in that: comprise the following steps:
1) mulberries are broken, add volumetric concentration be 40 ~ 50% and pH value be 2.0 ~ 4.0 acidic ethanol refluxing extraction 1 ~ 3 time, extract 1 ~ 3h at every turn, merged by extracting solution, filter, filtrate is anthocyanogen crude extract;
2) by HPD-300 type macroporous resin column on anthocyanogen crude extract, collect effluent liquid, with distillation washing post to colourless, then be that 40 ~ 50% ethanolic solns wash post by volumetric concentration, collect ethanol eluate;
3) by step 2) in effluent liquid on AB-8 type macroporous resin column, be that 80 ~ 95% ethanolic solns wash post by volumetric concentration, collect ethanol eluate;
4) by step 2) and step 3) ethanol eluate merge, concentrating under reduced pressure reclaim ethanol, vacuum lyophilization, obtains Mulberry anthocyanin powder.
2. the extraction process of Mulberry anthocyanin according to claim 1, is characterized in that: step 2) in, the upper column flow rate of anthocyanogen crude extract is 2.0 ~ 3.5BV/h, and distillation washing post speed is 1 ~ 3BV/h, and post speed washed by ethanol is 2.0 ~ 3.5BV/h.
3. the extraction process of Mulberry anthocyanin according to claim 1, is characterized in that: step 3) in, the upper column flow rate of effluent liquid is 2.0 ~ 3.5BV/h, and post speed washed by ethanol is 2.0 ~ 3.5BV/h.
4. the extraction process of Mulberry anthocyanin according to claim 1, is characterized in that: step 4) in, described concentrating under reduced pressure refers at-0.05 ~-0.09MPa, at 45 ~ 55 DEG C and carries out.
CN201510541533.5A 2015-08-31 2015-08-31 Extraction process of mulberry anthocyanin Pending CN105061529A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107556284A (en) * 2017-10-31 2018-01-09 桂林纽泰生物科技有限公司 The method that OPC is extracted from litchi rind
CN107721965A (en) * 2017-10-31 2018-02-23 桂林纽泰生物科技有限公司 The extraction process of litchi rind OPC
CN107712758A (en) * 2017-11-01 2018-02-23 安徽省林锦记食品工业有限公司 The processing method that a kind of anti-oxidant haw freezes
CN110180216A (en) * 2019-06-11 2019-08-30 南京农业大学 A kind of method and device of intensified by ultrasonic wave fluidized bed type resin adsorption-parsing extraction purification anthocyanin
CN110698879A (en) * 2019-11-11 2020-01-17 耿建兰 Method for extracting natural pigment from mulberry
CN111789204A (en) * 2020-08-27 2020-10-20 蔡晓明 Mulberry beverage and preparation method thereof

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CN102659743A (en) * 2012-05-08 2012-09-12 李丹 Extraction rectification method of anthocyanin in mulberry
CN103288899A (en) * 2013-05-24 2013-09-11 西藏月王生物技术有限公司 Method of separating anthocyanin from purple highland barley

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CN102382485A (en) * 2011-09-23 2012-03-21 天津市尖峰天然产物研究开发有限公司 Method for extracting anthocyanin from mulberries
CN102659743A (en) * 2012-05-08 2012-09-12 李丹 Extraction rectification method of anthocyanin in mulberry
CN103288899A (en) * 2013-05-24 2013-09-11 西藏月王生物技术有限公司 Method of separating anthocyanin from purple highland barley

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107556284A (en) * 2017-10-31 2018-01-09 桂林纽泰生物科技有限公司 The method that OPC is extracted from litchi rind
CN107721965A (en) * 2017-10-31 2018-02-23 桂林纽泰生物科技有限公司 The extraction process of litchi rind OPC
CN107712758A (en) * 2017-11-01 2018-02-23 安徽省林锦记食品工业有限公司 The processing method that a kind of anti-oxidant haw freezes
CN110180216A (en) * 2019-06-11 2019-08-30 南京农业大学 A kind of method and device of intensified by ultrasonic wave fluidized bed type resin adsorption-parsing extraction purification anthocyanin
CN110698879A (en) * 2019-11-11 2020-01-17 耿建兰 Method for extracting natural pigment from mulberry
CN111789204A (en) * 2020-08-27 2020-10-20 蔡晓明 Mulberry beverage and preparation method thereof

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Application publication date: 20151118