CN1272311C - Extracting method for natural amino acid mixture with rich 4-hydroxy-isolecine - Google Patents
Extracting method for natural amino acid mixture with rich 4-hydroxy-isolecine Download PDFInfo
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Abstract
The present invention discloses a method for extracting a natural amino acid mixture rich in 4-hydroxy-isoleucine from fenugreek seeds as raw materials. In the method, pulverized fenugreek seed powders are taken and ultrasonically extracted at room temperature in the mode of methanol as an extracting agent, and filtration residue is additionally treated; extracting solutions are combined, decompressed and concentrated to recover methanol; a concentrated solution is extracted thrice by solvent gasoline in a proper quantity of deionized water in order to eliminate oil and fat of the fenugreek seeds in the extracting solutions; the pH of a water layer is regulated to be 1 to 6 by acid so that protein is denatured; filter liquid passes through a cation exchange resin column; the cation exchange resin column is washed in deionized water; effluent liquid and washing liquid are combined and additionally treated; the resin column is desorbed in 0.05N to 2N of ammonia, deaminized and concentrated to be in thick pasty shape; the natural amino acid mixture mainly containing the 4-hydroxy-isoleucine is prepared by lyophilization. The extraction method has obvious economic benefit and social benefit.
Description
The present invention is that name is called a kind of method of extracting multiple byproducts such as 4-hydroxyl-Isoleucine and combination of fenugreek gum from fenugreek seed, and application number is 02128824.0, and the applying date is dividing an application of 2008.8.14.
Technical field
The present invention relates to a kind of plant extraction process, particularly relate to a kind of method of from fenugreek seed, extracting multiple byproducts such as 4-hydroxyl-Isoleucine and combination of fenugreek gum.
Background technology
Semen Trigonellae originates in Mediterranean Zone, imports China into from the Han dynasty, in south cultivation, aboundresources is arranged all to north.Its tender stem, leaf can be made the spices seasoning matter, the seed medicine-food two-purpose.The Semen Trigonellae mature seed is used as medicine, and is one of China's traditional Chinese medicine, is written into pharmacopeia.The Compendium of Material Medica record: " the bitter Wen Chunyang of Semen Trigonellae goes into kidney and mends the gate of vitality ... " has kidney-replenishing, the dispelling cold and dampness effect.Cure mainly cold hernia, abdomen side of body turgor, the disturbance of lower legs due to pathogenic cold and dampness, lumbago due to renal deficiency, impotence and seminal emission, diarrhoea, have no side effect.Abroad also with it as treatment diabetes, essential hypertension, urinary stone disease, pellagra, tuberculosis etc.
The chemical group composition mainly contains fats, poly-polyose, triterpenes, steroid class, flavonoid, alkaloids, protein and total free aminoacids in the fenugreek seed.These compounds present different biological activitys and pharmacological effect because of its constitutional features is different.
Discovered in recent years has also generally acknowledged that the fenugreek seed powder has blood sugar decreasing effect preferably, cause many interest of experts of the world of medicine and concern in the world, but the report to its hypoglycemic activity component is comparatively chaotic, and Semen Trigonellae peptide ester (Fenugreekine), water solutable edible fiber (being combination of fenugreek gum), Semen Trigonellae saponin(e, nicotinic acid, tonka bean camphor (part on the ground) or the like are wherein arranged.Yres Sauvaire in 1992 etc. have reported from fenugreek seed and have extracted, separated peculiar natural 4-hydroxyl-Isoleucine, prove that through experimentation on animals it has the function of tangible stimulating pancreas excreting insulin, therefore, present the effect of significant lowering blood glucose level and the anti-glucose amount of raising.Domestic application to fenugreek seed, except medicinal, reported and from fenugreek seed, isolated endosperm and in order to manufacture level or food grade thickener with from fenugreek seed (or remove endosperm after seed meal), extract two kinds of comprehensive utilization products of dioscin.So far, do not see the research report that from fenugreek seed, extracts natural total free aminoacids and distinctive 4-hydroxyl-Isoleucine thereof at home as yet.Simultaneously, no matter at home or abroad, there is no the report of the natural 4-hydroxyl-Isoleucine suitability for industrialized production of from fenugreek seed extraction, also do not see on a production line fenugreek seed total free aminoacids, combination of fenugreek gum, fenugreek seed crude oil, Semen Trigonellae flavones and the comprehensive utilization technique of five kinds of products of saponin and the report of technology that extract simultaneously, make based on 4-hydroxyl-Isoleucine.
Combination of fenugreek gum (Fenugreek Gum), claim Semen Trigonellae soluble edible fibre, fenugreek gum again, it is the endosperm part of fenugreek seed, wherein 60% is polygalactomannan (Galactomannan), total sugar content accounts for more than 80%, protein accounts for about 6%, and all the other are water, crude fat, robust fibre, ash or the like.Once the someone pushed away and guessed that it was hypoglycemic main ingredient, Ali L. has reported his result of study in nineteen ninety-five, proved that this soluble edible fibre does not have hypoglycemic activity to normal rat and non insulin dependent diabetes rat, blood sugar obviously reduces when raising glucose but feed simultaneously, can only explain it and has the effect that improves anti-glucose amount.The combination of fenugreek gum aqueous solution can suppress the generation and the development of vortex, demonstrates the drag reduction effect, and these characteristics have determined its purposes.
The main products of current combination of fenugreek gum and purposes have following two kinds: the technical grade combination of fenugreek gum can be used for purposes such as oil production, daily-use chemical industry, printing and dyeing sizing, preparation explosive; Food pharmaceutical grade combination of fenugreek gum: can make food, pharmaceutical grade combination of fenugreek gum thickening material, vehicle.
Semen Trigonellae crude oil (Oil of Common Fenugreek seed), the fenugreek seed oleaginousness is about 7% only, belongs to low oily seed, if handle, do not have economic benefit, but extract fenugreek seed oil by comprehensive Utilization Ways as oil crops, can reduce cost significantly, increase economic benefit.Relevant reported in literature Semen Trigonellae crude oil has the lactagogue of containing composition, but does not have any gonadotropic Effect.Crude oil and non-saponin constituent thereof have anti-microbial effect, wherein contain Lupeol and have significant function of blood sugar reduction.Crude oil can separate, extract the dietary supplements of high added values such as phosphide, VE, β-Gu Zaichun through refining from oil foot, soap stock.Purified Semen Trigonellae oil is rich in unsaturated fatty acids (being higher than 80%), and wherein the linoleic acid plus linolenic acid total amount reaches more than 50%.Physiological actions such as unsaturated fatty acids has reducing blood-fat, anticoagulant, prevents arteriosclerosis, anti-inflammatory, anticancer, raise immunity are so can be used as health care oil.
Natural total free aminoacids based on natural 4-hydroxy-isoleucine (4-hydroxyisoleucine), 4-hydroxyl-Isoleucine is a kind of non-protein ingredient, the novel amino of the non-electric charge of polarity (promptly neutral), formal name used at school is 2-amino-3-methyl-4-hydroxyl-valeric acid, in mammalian cell, do not find, exist only in some (Semen Trigonellae kind) plant.L Fowdent in 1973 etc. at first separate from fenugreek seed and identify 4-hydroxyl-Isoleucine, and propose it three chiral carbon atoms are arranged, 4 kinds of isomer are arranged: (2S, 3R, 4R)-, (2R, 3R, 4R)-, and their formed two kinds of lactone hydrochlorates, this open chain and lactone configuration can transform mutually.4-hydroxyl-Isoleucine accounts for the 30-50% of the total free aminoacids total amount of dry seed.And in the research of Y.Sauvaire in 1984 etc., also proved in this 4-hydroxyl-Isoleucine molecule three chiral centres have been arranged, be present in that this seed amino acid has two diastereomeric isomeric forms in the fenugreek seed, main is a kind of with (2S, 3R, 4S)-configuration accounts for about 90% of this aminoacids content.And accessory a kind of be so that (2R, 3R 4S)-configuration, account for about 10%, and this result is by Hasan (1986), and Alcock etc. (1989) prove conclusively, and other 4-hydroxyl-Isoleucine steric configuration seemingly is difficult to obtain in natural phant.Y.Sauvaore in 1992 etc. have discovered and have extracted that isolated natural 4-hydroxy-isoleucine has the function of tangible stimulating pancreas excreting insulin from fenugreek seed, present effect significant hypoglycemic and the anti-sugar amount of raising.Masiell etc. (1998), C.Broca etc. (1999,2000) all verified this result, and (2S in three isomer of 4-hydroxyl-Isoleucine proposed, 3R, 4S)-configuration stimulating pancreas excreting insulin effect is remarkable, and (2R, 3R, 4S)-configuration and lactones thereof also have obvious effects.But secretory volume is lower than the former.Therefore, can think that 4-hydroxyl-Isoleucine is a kind of potential that has, be of value to type ii diabetes patient's anti-diabetic new preparation (medicament).
Since under certain envrionment conditions effect, (2S, 3R, 4S)-configuration can be converted into (2R, 3R, 4S)-configuration or lactone configuration, cause correspondingly having weakened the hypoglycemic of this product and improve the effect of anti-sugar amount, avoid and what reduce above-mentioned conversion is crucial in the preparation process of product.
Semen Trigonellae total flavones (Total Flavones of Fenugreek seed) has reported in literature Semen Trigonellae total saponins, flavonoid glycoside can promote nucleic acid and protein synthesis and the metabolism of cholesteryl ester matter, arteriosclerosis, and effects such as reducing cholesterol; The flavonoid component parent nucleus mostly is 4 ', 5 in the Semen Trigonellae, the 7-trihydroxyflavone, as Vitexin, Vitexin-7-glucoside, isovitexin, orientin, isorientin, orientin glycosides, isorientin glycosides, apigenin-6-xyloside-8-glucoside, apigenin-6,8-two carbon-glucoside, Vitexin-2 "-the basic naringenin of O-para hydroxybenzene; luteolin; tricin, tricin-7-O-glucoside, 6; 8-two carbon-β-D-glucofuranose glycosides; 15 kinds of flavones such as acacetin, and two kinds of flavonol: Quercetin, kaempferol.13 kinds is flavonoid glycoside compound in above-mentioned 17 kinds of flavonoid compounds, and wherein carbon-glycosides is 12 kinds, and oxygen-glycosides is a kind of, and this is the characteristics of Semen Trigonellae flavones, but does not see the report of the extraction and the application of Semen Trigonellae total flavones, flavonoid glycoside so far as yet.
Semen Trigonellae saponin(e (Fenugreek Saponin, Trigosaponin), from fenugreek seed, extracted and identified 34 kinds of saponin(es, wherein belong to steroidal saponin and have 30 kinds, be respectively potato sapogenin (Diosgenin), refined not sapogenin (Yamogenin), gitogenin (Gitogenin), Neogiogenin (Neogiogenin), for accusing sapogenin (Tigogenin), NSC 232021 (Neotigogenin), the different sugar glycoside compound of yuccagenin (Yuccagenin) etc., triterpenoid saponin has 4 kinds, is respectively Semen Trigonellae saponin I (Trigosaponin I), soybean saponin I (SayasaponinI), soybean saponin I methyl esters (Methylsayasaponin I), the β-Gu Zaichun glucopyranoside.The saponin(e that wherein has potato sapogenin precursor structure, except that the potato saponin(e, plain its aglycon of B (Fenugrin B) of Semen Trigonellae saponin(e (Gzaecunin) H, I, J, K, L, M, N and Semen Trigonellae all is the potato sapogenin.This saponins is a main ingredient in the Semen Trigonellae saponin(e.That existing reported in literature Semen Trigonellae saponin(e has is hypoglycemic, reducing blood-fat, reducing cholesterol, diuresis, anti-inflammatory isoreactivity, wherein potato saponin(e, refined not sapogenin have antimycotic, insecticidal action, the potato sapogenin has estrogen effect and decreasing cholesterol effect, that soybean saponin has is anti-oxidant, anticancer, anti-liver injury, antithrombotic and strengthening immunity effect, but saponin compound all has the hemolytic defective mostly.Owing to after the Semen Trigonellae saponin(e is hydrolyzed into aglycon, mainly be the potato sapogenin wherein, can be used as steroid hormone, the raw material of medicine industry does not also have complete synthesis raw material or to substitute with its competition at present.The steroid drugs total sales volume is with the speed increase of annual 6-10% on the world market, enter the nineties since annual value of production broken through 10,000,000,000 dollars, a year sapogenin consumption (not comprising China) surpasses 2000 tons, market presents the raw material anxiety, the present situation that demand exceeds supply.Originally the main raw material of potato sapogenin production is Rhizoma Dioscoreae Zingiberensis, Dioscorea nipponica Mak. Ningpo Yam Rhizome, and taking 4-7, just excavates the potato growth cycle, cause shortage of resources, and need potato sapogenin (comprising outlet) about 1500 tons China's year, have 50 now surplus 1000 tons of family's plant produced insufficient total amounts, breach is very big, therefore from fenugreek seed, extract saponin(e, refining through hydrolysis, make the potato sapogenin, can remedy the problem of market supply deficiency.
Technology contents
It is raw material that the object of the invention is to provide a kind of seed with Chinese medicine Semen Trigonellae (TrigonellaFoenum-graecum.L., Common Fenugreek), and extracting natural 4-hydroxy-isoleucine is the method for the free amine group acid product of main body;
The object of the invention also is to provide a kind of biochemical technology that can obtain multiple byproducts such as combination of fenugreek gum, fenugreek seed crude oil, Semen Trigonellae flavones and saponin(e when extracting natural 4-hydroxy-isoleucine.
The present invention seeks to be achieved through the following technical solutions:
1, the extraction of five kinds of extracts in the fenugreek seed:
Preparation fenugreek seed crude oil: the fenugreek seed powder after the pulverizer of learning from else's experience is pulverized, under the 60-80 ℃ of constant temperature and pressure Petroleum ether extraction 1-3 hour, suction filtration said extracted thing, filter residue extracts secondary again with sherwood oil respectively, merges No. three times extracting solution, filter residue A otherwise processed; Extracting solution concentrates and reclaims solvent, obtains the fenugreek seed crude oil;
Preparation Semen Trigonellae crude flavonoid powder: filter residue A uses 10-90% extraction using alcohol 2-3 time, each 1-3 hour, united extraction liquid, filter residue B otherwise processed under 60-80 ℃ of constant temperature and pressure; Extracting solution is removed high molecular weight protein by ultrafiltration, collects the filtrate that sees through 20,000 molecular weight films; Reclaim ethanol, concentrate, concentrated solution adds deionized water dilution, i.e. raffinate A; Raffinate A uses ethyl acetate extraction respectively three times with liquid-liquid extraction method, and ethyl acetate is residual does not end water layer to having through underpressure distillation, as debris B; The combined ethyl acetate layer concentrates, and reclaims ethyl acetate, and the residual pure water that adds of still concentrates to dissolving, and drying obtains yellow powder and is the Semen Trigonellae crude flavonoid powder;
Preparation Semen Trigonellae thick saponin(e: with liquid-liquid extraction method, extracts three times from raffinate B as extraction agent with propyl carbinol, water layer is standby as debris c, merges the alcohol layer, is evaporated to driedly, and the recovery propyl carbinol obtains the thick saponin(e pressed powder of brown;
Preparation 4-hydroxyl-Isoleucine: it is 1～6 that raffinate c regulates PH, last cation exchange resin column, carry out ion-exchange, and with deionized water washing, resin column is with 0.05N～2N ammoniacal liquor desorb, deamination, be concentrated into do after, vacuum-drying 4-8hr obtains yellow or tawny solid, and the content of 4-hydroxyl-Isoleucine is 10-60% in the product;
Preparation combination of fenugreek gum: get filter residue B, add 10-18 times of water, heating, stir and extract 1-3h, suction filtration, filter residue discards, after filtrate is concentrated into 1/3 volume, adds 80-95% ethanol sedimentation, washing, dehydration, drying and obtain yellowish medicinal or edible combination of fenugreek gum powder to white.
Aforesaid method of the present invention PetroChina Company Limited. ether can use normal hexane, hexanaphthene or industrial naptha to replace.
In the aforesaid method Semen Trigonellae flavones of the present invention preparation under the filter residue A constant temperature and pressure extraction using alcohol can replace with methanol extraction.
Aforesaid method ethanol extract of the present invention removes the also available mineral acid of deproteinize (as sulfuric acid, hydrochloric acid), organic acid (as tannic acid, Tricholroacetic Acid, lactic acid) or other organism sedimentation protein such as chloroform, polyoxyethylene glycol with hyperfiltration process and replaces.
Raffinate A in the aforesaid method Semen Trigonellae flavones preparation of the present invention, available polyamide resin absorption, the deionized water washing, merging effluent liquid, washings are raffinate B, otherwise processed; Resin column is collected desorbed solution with 10～90% alcohol desorptions, concentrates and reclaims ethanol, is concentrated into driedly, and vacuum-drying obtains the tawny crude flavonoid powder;
The thick saponin(e preparation of aforesaid method Semen Trigonellae of the present invention can also be a debris B wide aperture resin absorption, the deionized water washing, and resin column is concentrated into dried with 10～90% alcohol desorptions, collection stripping liquid, obtains the thick saponin(e pressed powder of tawny.
The thick saponin(e preparation of aforesaid method Semen Trigonellae of the present invention can also be that raffinate B adds sulfuric acid or hydrochloric acid direct heating backflow 5～8hr hydrolysis glucosides, making water-insoluble sapogenin be crystalline state separates out, filter, after the filter cake oven dry, add an amount of activated carbon mixing, extract 8～10hr with the sherwood oil continuous backflow, extracting solution reclaims solvent through concentrating, after being concentrated into suitable concentration, room temperature is filtered after placing crystallization being separated out fully, filtrate recovery is used, after draining, filter cake is yellow crystals, through ethanol or acetone soln recrystallization, and the crystalline thing of the sapogenin that is white in color;
The preparation of aforesaid method of the present invention industry combination of fenugreek gum also can be fenugreek seed through soak softening after, the endosperm broken, that screening is come out is through impurity elimination, abrasive dust, sieving to make industrial combination of fenugreek gum;
Aforesaid method raw material of the present invention can be the fenugreek seed powder that sieves out behind the endosperm.
2, the extracting method of 4-hydroxyl-Isoleucine of the present invention, this method is: the fenugreek seed powder after the pulverizer of learning from else's experience is pulverized, under the 60-80 ℃ of constant temperature and pressure Petroleum ether extraction 1-3 hour, suction filtration said extracted thing, filter residue extracts secondary again with sherwood oil respectively, merges No. three times extracting solution, filter residue A uses 10-90% extraction using alcohol 2-3 time under 60-80 ℃ of constant temperature and pressure, each 1-3 hour, united extraction liquid, filter residue B otherwise processed; Extracting solution is collected the filtrate that sees through 20,000 molecular weight films by ultrafiltration; , reclaim ethanol, concentrate, concentrated solution adds deionized water dilution, i.e. raffinate A; It is 1～6 that raffinate A regulates PH, and last cation exchange resin column carries out ion-exchange, and washs with deionized water, and effluent liquid and washings are merged into raffinate B otherwise processed.Resin column is with 0.05N～2N ammoniacal liquor desorb, deamination, be concentrated into do after, vacuum-drying 4-8hr obtains yellow or tawny solid, the content of 4-hydroxyl-Isoleucine is 10-60% in the product;
Aforesaid method of the present invention can also be: it is 1～6 that raffinate A regulates PH, last cation exchange resin column, carry out ion-exchange, and with after the deionized water washing, with the desorb of 0.05～2N ammoniacal liquor, detect stripping liquid with ninhydrin reagent, when the amino acid color reaction occurring, promptly begin to collect stripping liquid and only be little yellow to flowing out stripping liquid, merge desorbed solution, evaporation concentration, deamination, be concentrated into do after, vacuum-drying 4-8hr, obtain yellow or tawny solid, the content of 4-hydroxyl-Isoleucine is 10-60% in the product.
Aforesaid method of the present invention can also be: raffinate A uses ethyl acetate extraction respectively three times, water layer is used n-butanol extraction respectively three times, water layer B behind n-butanol extraction, transfer PH=5 with hydrochloric acid, carry out ion-exchange on the last cationic resin column, add the deionized water washing of 3-4 times of column volume, discard effluent liquid and washings, with the desorb of 1N ammoniacal liquor, detect with ninhydrin reagent, stripping liquid begins to collect after being tawny, is faint yellow to stripping liquid and ends, and merges stripping liquid, evaporation concentration, deamination, be concentrated into dried after drying 4-8h, obtain yellow powder shape material, wherein the content of 4-hydroxyl-Isoleucine is 14.47%.
Zeo-karb of the present invention can also be strongly-acid, middle acidity or acidulous cation resin; Dry available spraying drying, vacuum-drying, lyophilize.
3, the present invention also provides the extracting method of four kinds of extracts in a kind of fenugreek seed, and this method is:
Preparation Semen Trigonellae crude oil: learn from else's experience and pulverize the Semen Trigonellae powder that takes off behind the endosperm under 60～80 ℃ of constant temperature and pressures, with 10～90% extraction using alcohols three times, 1-3hr at every turn, merging filtrate; Concentrating filter liquor reclaims ethanol, and concentrated solution dilutes with deionized water, carries out liquid-liquid extraction with normal hexane, extracts three times, merges oil reservoir, the water layer otherwise processed; Oil reservoir reclaims solvent through concentrating, and obtains the Semen Trigonellae crude oil;
Preparation 4-hydroxyl-Isoleucine: water layer is transferred PH4-6 with dilute acetic acid, and protein denaturation is separated out, and filters through sedimentation, and filtrate is used cationic exchange resin adsorption amino acid, and washs with deionized water, and merging effluent liquid, washings are raffinate d, otherwise processed; Positively charged ion system resin column is with the desorb of 0.05～2N ammoniacal liquor, and desorbed solution is through concentrating under reduced pressure, deamination, evaporate to dryness, and at 80 ℃ of following vacuum-drying 4-8hr, obtains the yellow solid powder-product, and 4-hydroxyl-isoleucine content is 10-60% in the product;
Preparation Semen Trigonellae flavones: raffinate d adsorbs by polyamide resin, and wash with deionized water, merging effluent liquid and washings is raffinate e, otherwise processed, polyamide column 10-90% alcohol desorption is collected desorbed solution, reclaim ethanol through concentrating, evaporate to dryness at 80 ℃ of vacuum-drying 4-8hr, obtains yellow solid powder Semen Trigonellae flavones;
Preparation Semen Trigonellae saponin(e: raffinate e is by the absorption of wide aperture resin column, and wash with deionized water, effluent liquid, washings enter treatment tank, resin column 10-90% alcohol desorption in wide aperture is collected desorbed solution, through concentrating, reclaim ethanol, evaporate to dryness at 80 ℃ of vacuum-drying 4-8hr, obtains tawny pressed powder Semen Trigonellae saponin(e.
Preparation Semen Trigonellae crude oil can also be to learn from else's experience that to pulverize the Semen Trigonellae powder that takes off behind the endosperm be extraction agent with ethanol with 20KHz ultrasonic extraction 2-3 time in the aforesaid method of the present invention, 30-50min at every turn, merging filtrate; Concentrating filter liquor reclaims ethanol, and concentrated solution dilutes with deionized water, carries out liquid-liquid extraction with normal hexane, extracts three times, merges oil reservoir, the water layer otherwise processed; Oil reservoir reclaims solvent through concentrating, and obtains the Semen Trigonellae crude oil.
Can also be after the concentrated solution of wherein ethanol extract adds the deionized water dilution for preparation Semen Trigonellae crude oil in the aforesaid method of the present invention, also available mineral acid (as sulfuric acid, hydrochloric acid), organic acid (as tannic acid, Tricholroacetic Acid, lactic acid) or other organism sedimentation protein such as chloroform, polyoxyethylene glycol, filter, filtrate is used non-polar solvent (sherwood oil again, normal hexane, hexanaphthene, industrial naptha etc.) extraction fenugreek seed oil.
Preparation Semen Trigonellae flavones can also be a raffinate d ethyl acetate extraction in the aforesaid method of the present invention, merges the ester layer, and through concentrating, drying obtains the yellow solid powder---the Semen Trigonellae flavones.
In the method for the invention, Zeo-karb is that strongly-acid, middle acidity, acidulous cation resin all can;
Drying means in the method for the invention, methods such as available spraying drying, vacuum-drying, lyophilize;
4-hydroxyl-the Isoleucine of indication of the present invention comprises following isomer:
(2S，3R，4S)-4-Hydroxylisoleucine，(2R，3R，4S)-4-Hydroxylisoleucine，(2S，3R，4S)-4-Hydroxylisoleucine?lactone?Hcl，(2R，3R，4S)-4-Hydroxylisoleucine?lactone?Hcl。
It is materials such as Calcium hydrogen carbonate, sodium sulfate, seminose, poly-semi-lactosi, micropowder silica gel, starch and derivative thereof, Natvosol, hydroxypropylcellulose that the 4-hydroxyl-Isoleucine of indication of the present invention can add conventional auxiliary material.
The inventive method advantage is can obtain simultaneously five series products such as natural 4-hydroxy-isoleucine, combination of fenugreek gum, Semen Trigonellae crude oil, crude flavonoid powder, thick saponin(e on a production line, this comprehensive utilization biochemical technology has been filled up domestic blank, has good application prospects.Fenugreek seed mainly utilizes to extract the Semen Trigonellae sapogenin of combination of fenugreek gum and diosgenin at present.Fully utilizing with the 100kg fenugreek seed is example, can extract about 20kg industry combination of fenugreek gum (20 yuan/kilogram), about 1kg sapogenin (500 yuan/kilogram), 6kg fenugreek seed oil (5 yuan/kilogram), add up to 930 yuan of output values, fully utilize by this patent technology, can make about 3kg and contain the natural mixed amino acid product that 10%4-hydroxyl-Isoleucine is the master, in 300 yuan/kilogram, the 3kg output value is 900 yuan, and make 1.5kg Semen Trigonellae flavones, for the drug efficacy study and the utilization of Semen Trigonellae flavones provides certain basis.From the above the art of this patent can increase about about one times of added value, and its economic benefit is very remarkable.
Y.Sauvaore in 1992 etc. have discovered and have extracted that isolated natural 4-hydroxy-isoleucine has the function of tangible stimulating pancreas excreting insulin from fenugreek seed, present effect significant hypoglycemic and the anti-sugar amount of raising.(1999,2000) such as Masiell etc. (1998), C.Broca have all verified this result.Therefore, 4-hydroxyl-Isoleucine is a kind of antidiabetic new paramedicines and prevention type ii diabetes patient's the generation and good protective foods of expansion that potential is of value to the type ii diabetes patient that have, and its social benefit is tangible.
Embodiment 1.
Get the fenugreek seed powder of 200g after pulverizer is pulverized, temperature is at 75 ± 2 ℃, and 800ml sherwood oil solvent extracted after 2 hours, suction filtration said extracted thing and material are taken out completely, and solid materials is extracted secondary with the 600ml sherwood oil respectively again at 75 ± 2 ℃, merge No. three times extracting solution, filter residue A otherwise processed; Extracting solution carries out evaporation concentration and reclaims solvent, and last concentrating under reduced pressure removes residual solvent, obtains 12.53g fenugreek seed crude oil, and yield is 6.265%;
Preparation Semen Trigonellae crude flavonoid powder: with filter residue A under 75 ± 2 ℃, with 800ml, 600ml, 600ml 80% extraction using alcohol three times, each 2h, filter residue B otherwise processed, united extraction liquid, by micro-filtration, 100,000 molecular weight films, 50,000 molecular weight films, 20,000 molecular weight films, collect the filtrate that sees through 20,000 molecular weight films, concentrate, reclaim ethanol, concentrated solution adds the dilution of 400ml deionized water, i.e. raffinate A; Raffinate A uses the 300ml ethyl acetate extraction respectively three times, and ethyl acetate is residual does not end water layer to having through underpressure distillation, as debris B; The combined ethyl acetate layer distills concentratedly, reclaims ethyl acetate, and still is residual to add an amount of pure water dissolving, concentrates, and removes residual ethyl acetate, evaporate to dryness then, and 80 ℃ are dry down, obtain the 3.02g yellow powder, yield 1.51%; This material is the Semen Trigonellae flavones;
The thick saponin(e of preparation Semen Trigonellae: raffinate B uses the 300ml n-butanol extraction respectively three times, and water layer is standby as debris c; Merge n-butanol layer, concentrate and reclaim the propyl carbinol solvent, the residual thick saponin(e of tawny that is of still, weight 10.26g, yield is 5.13%;
Preparation 4-hydroxyl-Isoleucine: debris c transfers PH=5 with hydrochloric acid, manipulation of regeneration is good and be exchanged on the cationic resin column of H+ type and carry out ion-exchange with 300ml is housed then, the deionized water that then adds 3-4 times of column volume washs, effluent liquid and washings are abandoned it, desorb is carried out with 1N ammoniacal liquor in the washing back, detect with ninhydrin reagent, after stripping liquid is tawny, begin to collect, be faint yellow to stripping liquid and end, merge stripping liquid, evaporation concentration, deamination, be concentrated into do after, at 80 ℃ of dry 6h down, obtain yellow powder shape material 4.32g, yield is 2.16%, and wherein the content of 4-hydroxyl-Isoleucine is 14.47%;
The preparation combination of fenugreek gum: get filter residue B, add 15 times water, heating is stirred and is extracted 3h, suction filtration, filter residue discards, after filtrate is concentrated into 1/3 volume, add that 95% ethanol precipitates, filtration, washing, air-dry after, dry 6h under 80 ℃ obtains combination of fenugreek gum pale yellow powder 27.64g, and yield is 13.32%.
Embodiment 2:
Get 200g through crushing and screening the fenugreek seed powder of endosperm, under 75 ± 2 ℃ of constant temperature and pressures, use 800ml, 600ml, 80% extraction using alcohol of 600ml three times, each 2hr, united extraction liquid otherwise processed, extracting solution concentrates, being recycled to concentrated solution does not only have pure flavor, and concentrated solution adds deionized water 600ml dilution, and each uses 200ml normal hexane extraction three times diluent, the water layer otherwise processed, merge oil reservoir and concentrate, reclaim normal hexane, remove residual normal hexane with underpressure distillation at last, get the thick Semen Trigonellae crude oil of 12.02g, yield is 6.01%;
Preparation 4-hydroxyl-Isoleucine: water layer is transferred PH=5 with dilute acetic acid, then has a large amount of protein precipitations to separate out sedimentation, filter, filtrate is carried out ion-exchange with 300gH+ type cation exchange resin column, and washs with the 600ml deionized water, merge effluent liquid, washings is a raffinate d otherwise processed; Cationic resin column is with the desorb of 0.6N ammoniacal liquor, and stripping liquid is through concentrating under reduced pressure, deamination, and evaporate to dryness, and, obtain yellow solid powder 5.44g at 80 ℃ of following vacuum-drying 6hr, and yield is 1.61%, 4-hydroxyl-isoleucine content is 30.4% in the product;
Prepare the Semen Trigonellae flavones: raffinate d washs with the 600ml deionized water with the absorption of 450g polyamide resin, and merging effluent liquid, washings are raffinate e, otherwise processed, polyamide resin column with 80% ethanol separate be drawn to effluent liquid be faint yellow till, merge desorbed solution, dried through being concentrated into, reclaim ethanol, still is residual to be yellow solid, and 80 ℃ of vacuum-drying 4hr are through grinding, get 2.92g xanchromatic crude flavonoid powder powder, yield is 1.46%;
Preparation Semen Trigonellae saponin(e: raffinate e adsorbs with 500gD-X type wide aperture resin column, and wash with the 800ml deionized water, the wide aperture resin column carries out desorb with 85% ethanol, to effluent liquid be faint yellow till, merge desorbed solution, dried through being concentrated into, reclaim ethanol, still is residual to be brown solid, 80 ℃ of vacuum-drying 4hr, through grind the thick saponin(e of 11.72g, yield is 5.68%
Claims (4)
1, a kind of natural amino acid mixture extracting method that is rich in 4-hydroxyl-Isoleucine, it is characterized in that this method is: the fenugreek seed powder after the pulverizer of learning from else's experience is pulverized, under the 60-80 ℃ of constant temperature and pressure Petroleum ether extraction 1-3 hour, suction filtration said extracted thing, filter residue extracts secondary again with sherwood oil respectively, merges No. three times extracting solution, filter residue A uses 10-90% extraction using alcohol 2-3 time under 60-80 ℃ of constant temperature and pressure, each 1-3 hour, united extraction liquid, filter residue B otherwise processed; Extracting solution is collected the filtrate that sees through 20,000 molecular weight films by ultrafiltration; Reclaim ethanol, concentrate, concentrated solution adds deionized water dilution, i.e. raffinate A; It is 1～6 that raffinate A regulates PH, and last cation exchange resin column carries out ion-exchange, and washs with deionized water, and effluent liquid and washings are merged into raffinate B otherwise processed; Resin column is with 0.05N～2N ammoniacal liquor desorb, deamination, be concentrated into do after, vacuum-drying 4-8hr obtains yellow or tawny solid, the content of 4-hydroxyl-Isoleucine is 10-60%w/w in the product.
2, the natural amino acid mixture extracting method that is rich in 4-hydroxyl-Isoleucine as claimed in claim 1, it is characterized in that this method is: it is 1～6 that raffinate A regulates PH, last cation exchange resin column carries out ion-exchange absorption, after the deionized water washing, detect stripping liquid with 0.05～2N desorb and with ninhydrin reagent, when the amino acid color reaction occurring, promptly begin to collect stripping liquid and only be little yellow to flowing out stripping liquid, merge desorbed solution, evaporation concentration, deamination, be concentrated into do after, vacuum-drying 4-8hr obtains yellow or tawny solid, and the content of 4-hydroxyl-Isoleucine is 10-60%w/w in the product.
3, the natural amino acid mixture extracting method that is rich in 4-hydroxyl-Isoleucine as claimed in claim 1, it is characterized in that this method is: raffinate A uses ethyl acetate extraction respectively three times, water layer is used n-butanol extraction respectively three times, water layer B behind n-butanol extraction, transfer PH=5 with hydrochloric acid, carry out ion-exchange on the last cationic resin column, add the deionized water washing of 3-4 times of column volume, discard effluent liquid and washings, with the desorb of 0.05～2N ammoniacal liquor, detect with ninhydrin reagent, stripping liquid begins to collect after being tawny, being faint yellow to stripping liquid ends, merge stripping liquid, evaporation concentration, deamination is concentrated into dried after drying 4-8h, obtain yellow powder shape material, wherein the content of 4-hydroxyl-Isoleucine is 10～60%w/w.
4, the natural amino acid mixture extracting method that is rich in 4-hydroxyl one Isoleucine as claimed in claim 1 is characterized in that Zeo-karb is meant strongly-acid, middle acidity or acidulous cation resin in this method; Drying is meant spraying drying, vacuum-drying or lyophilize.
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| CN101982457A (en) * | 2010-09-21 | 2011-03-02 | 徐州技源天然保健品有限公司 | Preparation technology of 4-hydroxy isoleucine monomer |
| CN104761425B (en) * | 2015-03-31 | 2016-08-24 | 川渝中烟工业有限责任公司 | The method extracting free amino acid offal is discarded from tobacco industry |
| CN104761426B (en) * | 2015-03-31 | 2016-08-24 | 川渝中烟工业有限责任公司 | The method extracting free amino acid from tobacco bud |
| CN105566136A (en) * | 2016-01-19 | 2016-05-11 | 天津科技大学 | Method for separating and extracting 4-hydroxyisoleucine from fermentation liquor |
| CN110117231B (en) * | 2018-02-07 | 2022-05-10 | 内蒙古昶辉生物科技股份有限公司 | Method for extracting 4-hydroxyisoleucine and total saponins from fenugreek seeds |
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