CN109651322A - The extracting method of Proanthocyanidins from Grape Seeds high polymer cracking and procyanidin B 2 - Google Patents

The extracting method of Proanthocyanidins from Grape Seeds high polymer cracking and procyanidin B 2 Download PDF

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Publication number
CN109651322A
CN109651322A CN201811561716.3A CN201811561716A CN109651322A CN 109651322 A CN109651322 A CN 109651322A CN 201811561716 A CN201811561716 A CN 201811561716A CN 109651322 A CN109651322 A CN 109651322A
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procyanidin
high polymer
procyanidine
ethyl acetate
elution
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CN201811561716.3A
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王强
阮晓
杨丽
汪晶
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Ningbo Institute of Technology of ZJU
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Ningbo Institute of Technology of ZJU
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D311/00Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D311/04Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
    • C07D311/58Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4
    • C07D311/60Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4 with aryl radicals attached in position 2
    • C07D311/62Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4 with aryl radicals attached in position 2 with oxygen atoms directly attached in position 3, e.g. anthocyanidins

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

Disclosure of the invention is the cracking of procyanidine high polymer and the extracting method of procyanidin B 2, it is extracted by ethyl acetate, the coextraction of water phase procyanidins high polymer is three times, then using catechin as decomposition agent, ethyl alcohol is solvent, the cracking reaction under acidity, procyanidine high polymer is cracked into procyanidine oligomer, crack reacting condition of the present invention is controllable, is not only utilized high polymer, and increases the utilization rate of polyphenol, the content of procyanidin B 2 is obtained with chromatographic isolation, product purity is high, reaches 99.1%, procyanidin B 2 yield is 35~42%.

Description

The extracting method of Proanthocyanidins from Grape Seeds high polymer cracking and procyanidin B 2
Technical field
The present invention relates to extract effective ingredient in grape pip, and in particular to the cracking of Proanthocyanidins from Grape Seeds high polymer and original The extracting method of anthocyanidin B2.
Background technique
Grape seed extract (Grape Seed Extract, GSE) is cannot in a kind of human body extracted from grape seeds The new and effective Natural Antioxidants of synthesis, it can effectively clear free radical extra in human body, has and delays senescence and increase The effect of strong immunity.Main active is grape seed polyphenols (Grape Proantho Cyanidins, GPC) in GSE, it By procyanidine list aggressiveness (catechin, epicatechin, gallate), glucosidase procyanidins (Oligomeric Proantho Cyanidins, OPC), high poly- procyanidine (Polymers Proantho Cyanidins, PPC) composition.Three classes procyanidine Condensate antioxidant activity in vitro test result is shown, is improved oxidation resistance with the degree of polymerization and is increased.Oral absorption experimental study The results show that dimer (Procyanidins B1, B2, B3, B4) bioavilability highest, Dan Ju in procyanidine oligomer Body bioavilability is lower, and procyanidine high polymer is oral not to be absorbed, and grape pip procyanidin high polymer needs to be cracked into oligomeric Body can just be utilized by bio-absorbable, if therefore procyanidine high polymer is cracked into dimer in procyanidine oligomer just mentioning The high utilization rate of grape pip.
Summary of the invention
Technical problem to be solved by the invention is to provide the cracking of Proanthocyanidins from Grape Seeds high polymer and Proanthocyanidin B1 Extracting method, which can be cracked into procyanidine oligomer by procyanidine high polymer, increase procyanidine B2 recovery rate.
The extracting method of procyanidine high polymer cracking and procyanidin B 2, steps are as follows:
(1) commercial glucose seed extract 10g is dissolved in 500ml water, stratification in 4 DEG C of environment, water phase 500ml ethyl acetate Extraction, separates, three times, water phase extract liquor is concentrated under reduced pressure into drying for water phase coextraction, obtains yellow high polymerization degree component after extraction;
(2) above-mentioned high polymerization degree component is dissolved in ethyl alcohol, adds catechin and hydrochloric acid is added dropwise and reacted, hydrochloric acid is final concentration of 0.02~0.1M, at 30~50 DEG C, the reaction time is 10~30 minutes for reaction temperature control, obtains reaction solution, the high poly group point Be 0.1g:5ml with the mass volume ratio of the ethyl alcohol, the mass ratio of the high poly group point and the catechin for 0.1g:0.1~ 0.3g;
(3) above-mentioned reaction solution 5ml being prepared into chromatographic isolation with 0.22 μm of membrane filtration, chromatographic column is Welch XB-C18, 21.2 mm × 250 mm, 10 μm, 25 DEG C of column temperature, mobile phase: the acetic acid water of acetonitrile and mass percentage concentration 0.2%, isocratic elution, Acetonitrile accounts for the 20% of mobile phase volume when 0~25 min is eluted, and acetonitrile accounts for the 45% of mobile phase volume when 25~40 min are eluted, inspection 280 nm of wavelength, each 50 ml of sample solution are surveyed, 27~29 min elution fractions are received;
(4) by above-mentioned elution fraction, it is concentrated under reduced pressure into drying, is mixed with 300~400 mesh silica gel by weight 1:1, excessively 200~ 300 mesh silicagel columns, ethyl acetate elution are concentrated under reduced pressure ethyl acetate eluent to drying, obtain clear crystal procyanidin B 2.
The advantage of the invention is that the extracting method of procyanidine high polymer cracking and procyanidin B 2, passes through ethyl acetate Extraction, three times, then using catechin as decomposition agent, ethyl alcohol is solvent to the coextraction of water phase procyanidins high polymer, under acidity Cracking reaction, procyanidine high polymer are cracked into procyanidine oligomer, and crack reacting condition of the present invention is controllable, not only make high poly- Body is utilized, and increases the utilization rate of polyphenol, obtains the content of procyanidin B 2 with chromatographic isolation, product purity is high, reaches To 99.1%, procyanidin B 2 yield is 35~42%.
Specific embodiment
Present invention is further described in detail with reference to embodiments.
Embodiment 1
Commercial glucose seed extract 10g(polyphenol content is higher than 95%, the degree of polymerization 3.7) it is dissolved in 500ml water, it is stood in 4 DEG C of environment Layering, water phase are extracted with 500ml ethyl acetate, are separated after extraction, three times, water phase is concentrated under reduced pressure into drying for water phase coextraction, obtains 6.2 g(polyphenol content of yellow high polymerization degree component is higher than 95%, the degree of polymerization 5.2).High polymerization degree component is dissolved in ethyl alcohol, is added The mass volume ratio of catechin and hydrochloric acid, high poly group point and ethyl alcohol is 0.1g:5ml, and high poly group point and the mass ratio of catechin are 0.1g:0.2g, reaction temperature are controlled at 30 DEG C, the reaction time 25 minutes, control hydrochloric acid final concentration 0.02M, reaction solution crosses 0.22 μ M membrane filtration prepares chromatographic isolation, and chromatographic column is Welch XB-C18,21.2mm × 250mm, 10 μm, 25 DEG C of column temperature, flows Phase: acetonitrile and 0.2% acetic acid water, isocratic elution, when 0~25 min is eluted, acetonitrile volume accounts for 20%, 25~40 min, elution When, acetonitrile volume accounts for 45%, and Detection wavelength 280 nm, each 50 ml of sample solution receive 27~29 min elution fractions, depressurizes dense It is reduced to drying, is mixed with 300~400 mesh silica gel by weight 1:1, the mesh silicagel column of 200-~300 is crossed, ethyl acetate elution subtracts Pressure concentration ethyl acetate eluent obtains 2.48 g clear crystal procyanidin B 2s to drying.
Embodiment 2
Substantially the same manner as Example 1, the mass ratio of different only high poly group point and catechin is 0.1g:0.1g, and hydrochloric acid is whole Concentration is 0.1M, and at 40 DEG C, the reaction time is 30 minutes for reaction temperature control.
Embodiment 3
Substantially the same manner as Example 1, the mass ratio of different only high poly group point and catechin is 0.1g:0.3g, and hydrochloric acid is whole Concentration is 0.06M, and at 50 DEG C, the reaction time is 10 minutes for reaction temperature control.

Claims (1)

1. the extracting method of procyanidine high polymer cracking and procyanidin B 2, it is characterised in that steps are as follows:
A, commercial glucose seed extract 10g is dissolved in 500ml water, stratification in 4 DEG C of environment, water phase 500ml ethyl acetate Extraction, separates, three times, water phase extract liquor is concentrated under reduced pressure into drying for water phase coextraction, obtains yellow high polymerization degree component after extraction;
B, above-mentioned high polymerization degree component is dissolved in ethyl alcohol, adds catechin and hydrochloric acid is added dropwise and reacted, hydrochloric acid is final concentration of 0.02~0.1M, at 30~50 DEG C, the reaction time is 10~30 minutes for reaction temperature control, obtains reaction solution, the high poly group point Be 0.1g:5ml with the mass volume ratio of the ethyl alcohol, the mass ratio of the high poly group point and the catechin for 0.1g:0.1~ 0.3g;
C, by above-mentioned reaction solution 5ml, with 0.22 μm of membrane filtration, chromatographic isolation is prepared, chromatographic column is Welch XB-C18,21.2 Mm × 250 mm, 10 μm, 25 DEG C of column temperature, mobile phase: the acetic acid water of acetonitrile and mass percentage concentration 0.2%, isocratic elution, 0~ Acetonitrile accounts for the 20% of mobile phase volume when 25 min are eluted, and acetonitrile accounts for the 45% of mobile phase volume when 25~40 min are eluted, detection Wavelength 280 nm, each 50 ml of sample solution receive 27~29 min elution fractions;
D, by above-mentioned elution fraction, it is concentrated under reduced pressure into drying, is mixed with 300~400 mesh silica gel by weight 1:1, excessively 200~ 300 mesh silicagel columns, ethyl acetate elution are concentrated under reduced pressure ethyl acetate eluent to drying, obtain clear crystal procyanidin B 2.
CN201811561716.3A 2018-12-20 2018-12-20 The extracting method of Proanthocyanidins from Grape Seeds high polymer cracking and procyanidin B 2 Pending CN109651322A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114605369A (en) * 2022-04-07 2022-06-10 西安天美生物科技股份有限公司 Procyanidine B2, and purification method and application thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101012216A (en) * 2007-02-02 2007-08-08 浙江大学 Method of preparing oligomeric proanthocyanidins
CN106381319A (en) * 2016-08-31 2017-02-08 山东省葡萄研究院 High-efficiency extraction and separation method of grape seed proanthocyanidin oligomer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101012216A (en) * 2007-02-02 2007-08-08 浙江大学 Method of preparing oligomeric proanthocyanidins
CN106381319A (en) * 2016-08-31 2017-02-08 山东省葡萄研究院 High-efficiency extraction and separation method of grape seed proanthocyanidin oligomer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NILS KOHLER等: "New Approach for the Synthesis and Isolation of Dimeric Procyanidins", 《J. AGRIC. FOOD CHEM》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114605369A (en) * 2022-04-07 2022-06-10 西安天美生物科技股份有限公司 Procyanidine B2, and purification method and application thereof

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