CN101748165A - Method for extracting calcium citrate - Google Patents
Method for extracting calcium citrate Download PDFInfo
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- CN101748165A CN101748165A CN200810235737A CN200810235737A CN101748165A CN 101748165 A CN101748165 A CN 101748165A CN 200810235737 A CN200810235737 A CN 200810235737A CN 200810235737 A CN200810235737 A CN 200810235737A CN 101748165 A CN101748165 A CN 101748165A
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- citric acid
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- calcium
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Abstract
The invention relates to a method for extracting calcium citrate. The potato dregs are utilized to quickly extract the diffluent calcium citrate, and fermented by using Aspergillus niger. The solubility of the calcium citrate is higher than that of the prior organic calcium, and the calcium citrate has an obvious lemon taste, thereby having a good mouthfeel. The cost is equivalent to the price of citric acid, thus the cost is low; and the purity is above 99.5%.
Description
Technical field
The present invention relates to a kind of method for extracting calcium citrate.
Background technology
At present, the product of much replenishing the calcium is arranged on the market of replenishing the calcium, from its constituent, roughly have lime carbonate, calcium phosphate, citrate of lime and milk calcium etc. several.Citrate of lime more and more is subjected to consumers in general's favor as a kind of comparatively ideal calsium supplement.The characteristics of citrate of lime maximum are can be directly water-soluble, are not having the utilization that also can directly be absorbed by the body under the situation of hydrochloric acid in gastric juice.Citrate of lime does not have the enteron aisle hormesis, even can take on an empty stomach yet.Compare with traditional calcium tablet, citrate of lime is met hydrochloric acid in gastric juice can not produce carbonic acid gas, therefore can not cause flatulence.Citrate of lime also has higher specific absorption, can not cause side effects such as constipation after taking.Studies show that, take citrate of lime after, the blood calcium concentration ratio is taken behind the lime carbonate high, illustrates that it has good absorptivity and high bioavailability.Citrate of lime can also suppress the generation of urinary stone disease.This is after being absorbed because of citrate of lime, can discharge calcium ion in vivo, and citrate ion then cements out the calcium ion in caoxalate, calcium urate, the calcium phosphate in urine, and the formation citrate of lime excretes, thereby has reduced the possibility of urinary stone disease.Calcium is the essential fundamental element of human body (containing animal), the citrate of lime of selling on the market belongs to organic calcium, its solubleness has been got well some than inorganic calcium, human body to the corresponding height of absorption of calcium some, but still it is little to belong to solubleness, the organic calcium of indissoluble, mouthfeel are also general, and human body is subjected to certain restriction to the absorption of calcium.
Summary of the invention
The purpose of this invention is to provide a kind of method for extracting calcium citrate, to improve the solubleness and the mouthfeel degree of citrate of lime, extraction cost is equivalent to the price of citric acid, and cost is low, and purity is more than 99.5%.
Technical scheme of the present invention is as follows:
One, material choice.The wet potato slag that koji is used (general water content is 70%) can be directly used in koji.As raw material is dried slag, then should reject rotten ruining earlier, and watering is broken again, and making it become particle diameter is 2～4 millimeters coarse fodder or the fines below 2 millimeters.
Two, yeast-making technology.Inoculate behind the medium sterilization, cultivated 3～4 days down in 30～35 ℃.Steaming material will generally steam 90 minutes under the normal pressure with iron steamer or wooden food steamer.Material steams the airing that takes the dish out of the pot after good, inserts black aspergillus kind.The plate that postvaccinal bacterium neutrality is promptly packed into and made with tinplate or enamel is put into the frame top fermentation of aseptic deep closet then and is cultivated.
Three, deep closet is cultivated.Deep closet humidity should remain on about 90%.96 hours citric acid growing amounts of fermentation culture reach the highest, and must go out song this moment, stop fermentation.
Four, finished product extracts.Go out Qu Houying water leaching citric acid in Quchi rapidly, soak bent liquid and remove impurity such as bent slag with the natural filtration method earlier, be heated to 65 ℃ then, remove other impurity such as deproteinize, enzyme, thalline, spore.The clear liquid that eliminates impurity is stirred down at 60 ℃, adds lime carbonate to temperature slowly to rise to 90 ℃, reaction half an hour, in and terminal point sodium hydroxide titration.This moment, citric acid became calcium precipitation to separate out, with citrate of lime with centrifuge dewatering after, in drying by the fire under 90～95 ℃ when water content is in 14%, can cool off pack.
Embodiment
One, material choice.The wet potato slag that koji is used (general water content is 70%) can be directly used in koji.As raw material is dried slag, then should reject rotten ruining earlier, and watering is broken again, and making it become particle diameter is 2～4 millimeters coarse fodder or the fines below 2 millimeters.Black-koji mould needs an amount of nitrogenous source when fermentation, therefore need to add an amount of rice bran or wheat bran.
Two, yeast-making technology.Culture medium prescription: 5 liters in 5 kilograms in wheat bran, 0.5 kilogram in lime carbonate, volatile salt 25 grams, water.The inoculation of sterilization back was cultivated 3～4 days down in 30～35 ℃.The raw material of koji batching mixes by the ratio of 50 kilograms of potato slags, 5.5 kilograms of rice brans or 9.5 kilograms of wheat brans, 1 kilogram of lime carbonate, 2%～3% alcohol, 40 premium on currency (35 liters of fines waters).Steaming material will generally steam 90 minutes under the normal pressure with iron steamer or wooden food steamer.Material steams the airing that takes the dish out of the pot after good, inserts black aspergillus kind.The plate that postvaccinal bacterium neutrality is promptly packed into and made with tinplate or enamel.Bent material will loosen, and thickness generally is advisable with 4～7 centimetres, puts into the frame top fermentation of aseptic deep closet then and cultivates.
Three, deep closet is cultivated.Deep closet humidity should remain on about 90%.Ferment initial and be advisable with 27～31 ℃ in 18 hours, be advisable with 38～43 ℃ in the 18th～48 hour, the 48th～96 hour (end) is advisable with 35 ℃.Cultivate after 48 hours and should measure acidity 1 time every 12 hours, generally cultivate 96 hours citric acid growing amounts and reach the highest, must go out song this moment, stops fermentation.
Four, finished product extracts.Go out Qu Houying water leaching citric acid in Quchi rapidly, through leaching for several times, treat in the bent slag citric acid content at 0.5% re-leaching not when following, soak that bent liquid is first removes impurity such as bent slag with the natural filtration method, be heated to 65 ℃ then, remove other impurity such as deproteinize, enzyme, thalline, spore.The clear liquid that eliminates impurity is stirred down at 60 ℃, adds lime carbonate to temperature slowly to rise to 90 ℃, reaction half an hour, in and terminal point sodium hydroxide titration.This moment, citric acid became calcium precipitation to separate out, with citrate of lime with centrifuge dewatering after, in drying by the fire under 90～95 ℃ when water content is in 14%, can cool off pack.
Claims (1)
1. a method for extracting calcium citrate is characterized in that technological process is
Material choice:
The general water content of wet potato slag that koji is used is 70%.Black-koji mould needs an amount of nitrogenous source when fermentation, therefore need to add an amount of rice bran or wheat bran;
Yeast-making technology:
5 liters in 5 kilograms in wheat bran, 0.5 kilogram in lime carbonate, volatile salt 25 grams, water.The inoculation of sterilization back was cultivated 3～4 days down in 30～35 ℃.The raw material of koji batching mixes by the ratio of 50 kilograms of potato slags, 5.5 kilograms of rice brans or 9.5 kilograms of wheat brans, 1 kilogram of lime carbonate, 2%～3% alcohol, 40 premium on currency (35 liters of fines waters);
Deep closet is cultivated:
Deep closet humidity should remain on about 90%.Ferment initial and be advisable with 27～31 ℃ in 18 hours, be advisable with 38～43 ℃ in the 18th～48 hour, the 48th～96 hour (end) is advisable with 35 ℃.Cultivate after 48 hours and should measure acidity 1 time every 12 hours, generally cultivate 96 hours citric acid growing amounts and reach the highest, must go out song this moment, stops fermentation.
Finished product extracts:
Go out Qu Houying water leaching citric acid in Quchi rapidly, through leaching for several times, treat in the bent slag citric acid content at 0.5% re-leaching not when following, soak that bent liquid is first removes impurity such as bent slag with the natural filtration method, be heated to 65 ℃ then, remove other impurity such as deproteinize, enzyme, thalline, spore.The clear liquid that eliminates impurity is stirred down at 60 ℃, adds lime carbonate to temperature slowly to rise to 90 ℃, reaction half an hour, in and terminal point sodium hydroxide titration.This moment citric acid become calcium precipitation to separate out, with citrate of lime with centrifuge dewatering after, get final product in drying by the fire when water content is in 14% under 90～95 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810235737A CN101748165A (en) | 2008-12-03 | 2008-12-03 | Method for extracting calcium citrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810235737A CN101748165A (en) | 2008-12-03 | 2008-12-03 | Method for extracting calcium citrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101748165A true CN101748165A (en) | 2010-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN200810235737A Pending CN101748165A (en) | 2008-12-03 | 2008-12-03 | Method for extracting calcium citrate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747111A (en) * | 2012-08-06 | 2012-10-24 | 江南大学 | Process for producing citric acid with aerobic effluent serving as ingredient water |
| CN102851330A (en) * | 2012-09-21 | 2013-01-02 | 中粮生物化学（安徽）股份有限公司 | Method for preparing citric acid through fermentation |
-
2008
- 2008-12-03 CN CN200810235737A patent/CN101748165A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747111A (en) * | 2012-08-06 | 2012-10-24 | 江南大学 | Process for producing citric acid with aerobic effluent serving as ingredient water |
| CN102851330A (en) * | 2012-09-21 | 2013-01-02 | 中粮生物化学（安徽）股份有限公司 | Method for preparing citric acid through fermentation |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100623 |