CN103214512A - Technology for preparing high-purity phytic acid with membrane technology by taking defatted rice bran as raw material - Google Patents
Technology for preparing high-purity phytic acid with membrane technology by taking defatted rice bran as raw material Download PDFInfo
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- CN103214512A CN103214512A CN2013101381985A CN201310138198A CN103214512A CN 103214512 A CN103214512 A CN 103214512A CN 2013101381985 A CN2013101381985 A CN 2013101381985A CN 201310138198 A CN201310138198 A CN 201310138198A CN 103214512 A CN103214512 A CN 103214512A
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Abstract
The invention relates to a technology for preparing high-purity phytic acid by comprehensively utilizing ultrasonic and membrane technologies and taking defatted rice bran as a raw material, and belongs to the field of comprehensive utilization and deep processing of grains. The technology takes the defatted rice bran as the raw material, and enzymolysis, ultrasonic extraction and ultrafiltration steps are added to the traditional technology, that is the technology comprises the steps of defatted rice bran preparation, enzymolysis and soaking, ultrasonic auxiliary extraction, filtration, processing of a filtrate with an ultrafiltration membrane, neutralization and sediment, phytine acidification, ion exchange, concentration, decoloration and finish product forming. The purity of the phytic acid prepared by the technology can reach above 90%; the production cycle can be shortened; the regeneration time of resin is prolonged; and the service life of the resin is prolonged, so that the product quality and economic benefit are improved.
Description
Technical field: the present invention relates to a kind of is raw material with the defatted rice bran, fully utilizes the technology that ultrasonic and membrane technique is produced the high purity phytic acid, belongs to integral cereal utilization and deep processing field.
Background technology: the conventional process that phytic acid extracts mostly is carries out acid to raw materials such as rice bran, wheat brans and carries, neutralization precipitation, and the luxuriant and rich with fragrance spit of fland of acidifying, ion-exchange concentrates, decolouring.To carry the time long for acidleach for the deficiency that traditional technology exists, and the luxuriant and rich with fragrance spit of fland of gained is second-rate, causes and need remove negatively charged ion with resin anion(R.A) with the luxuriant and rich with fragrance spit of fland introducing of mineral acid acidifying impurity negatively charged ion, and be difficult for removing clean, product kind organic impurity content is higher, and color is darker, is unfavorable for standing storage.
At above deficiency, getting the higher defatted rice bran of phytic acid content is raw material, has increased enzymolysis, ultrasonic, membrane filtration step, has accelerated filtration velocity, has shortened extraction time, has thoroughly removed the macromole organic impurity.Utilize the luxuriant and rich with fragrance spit of fland of reproducible 732 resin acidifyings, avoided the anionic introducing of impurity, and can tentatively remove positively charged ion, reduced the burden of subsequent step intermediate ion exchange, thereby obtained the purity height, of light color, be easy to the phytic acid product of standing storage.
Summary of the invention: the object of the present invention is to provide a kind of preparation process simple, with short production cycle and have a preparation technology of the phytic acid of higher degree.
Technical scheme of the present invention: defatted rice bran is behind suitable enzymolysis, ultrasonic auxiliary acid lixiviate gets vat liquor, vat liquor is through ultrafiltration, neutralization precipitation De Feiting, Fei Ting crosses cationic exchange coloum through the filtrate of 732 resin acidifyings dissolving after-filtration and thoroughly removes positively charged ions such as calcium, magnesium, makes the high purity phytic acid through concentrating, decolouring again.
Manufacture craft of the present invention may further comprise the steps:
(1) raw material: the defatted rice bran with mistake 40 mesh sieves is a raw material.
(2) enzymolysis: solid-liquid ratio 1: 8-1: 10, warm amylase amount is 30U/ (a 1g rice bran) in adding, and stirs enzymolysis 1 hour.
(3) ultrasonic auxiliary lixiviate: transfer pH of mixed to 2 with hydrochloric acid, under the 300-600W condition behind the supersound process 10-20min, stirring and leaching 30min.Collect filtrate behind the suction filtration.
(4) ultrafiltration: is the daltonian ultra-filtration membrane of 3000-5000 with filtrate by molecular weight cut-off, removes macromolecular substance such as Deproteinization, polysaccharide.
(5) neutralization: with 10% calcium hydroxide ultrafiltrated is transferred pH to 3.5, transfer pH to 7 with 10% sodium hydroxide solution again, constantly stir in the N-process.Left standstill after having neutralized 2 hours, and filtered De Feiting.
(6) washing: thorough washing is carried out in luxuriant and rich with fragrance spit of fland, be washed till washings and be colourless, clean Cl
-Deng negatively charged ion.
(7) the luxuriant and rich with fragrance spit of fland of acidifying: the luxuriant and rich with fragrance spit of fland of specific humidity by volume: resin=add pre-treatment good 732 resin dissolves luxuriant and rich with fragrance spit of fland at 1: 2, suction filtration is removed insoluble impurity.
(8) ion-exchange: luxuriant and rich with fragrance spit of fland acidizing fluid is crossed 732 cationic exchange coloums, thoroughly remove positively charged ions such as calcium, magnesium.
(9) concentrate: diluted plant acid solution is evaporated to content under 50～60 ℃ be 70% high purity phytic acid.
(10) decolouring: in solution, add amount of liquid 5% gac, stir decolour finished product.
The advantage of the inventive method:
(1) defatted rice bran is carried out suitable enzymolysis, be beneficial to the carrying out of follow-up filtration step, shorten filtration time greatly, and reduced contents of starch in the filter residue to a certain extent, filter residue is become be more suitable for the raw material of production of cellulose.
(2) utilize ultrasonic-assisted extraction, shortened extraction time greatly, improved extraction yield.
(3) utilize the luxuriant and rich with fragrance spit of fland of 732 resin acidifyings, avoided other anionic introducings.
(4) sour extract can be removed macromolecular substance such as albumen, polysaccharide after the ultra-filtration membrane ultrafiltration, has improved luxuriant and rich with fragrance spit of fland quality, to the loss of resin, prolongs regeneration of resin number of times and work-ing life in the minimizing subsequent step, thereby has improved the quality and the economic benefit of product.
Description of drawings
Accompanying drawing is this process flow diagram.
Embodiment
Embodiment 1
Took by weighing the defatted rice bran 100g of 40 mesh sieves, and added the 800ml deionized water, middle temperature amylase 30U/g material stirred enzymolysis 1 hour.Add hydrochloric acid and transfer pH of mixed to 2, under the 400W condition behind the supersound process 15min, stirring and leaching 30min.Collect filtrate behind the suction filtration.Is 3000 daltonian ultra-filtration membranes with filtrate by molecular weight cut-off, with 10% calcium hydroxide ultrafiltrated is transferred pH to 3.5, transfers pH to 7 with 10% sodium hydroxide solution again, constantly stirs in the N-process.Left standstill after having neutralized 2 hours, and filtered De Feiting.Thorough washing is carried out in luxuriant and rich with fragrance spit of fland, be washed till washings and be colourless.The luxuriant and rich with fragrance spit of fland of specific humidity by volume: resin=add pre-treatment good 732 resin dissolves luxuriant and rich with fragrance spit of fland at 1: 2, suction filtration is removed insoluble impurity.Luxuriant and rich with fragrance spit of fland acidizing fluid is crossed 732 cationic exchange coloums,, diluted plant acid solution is evaporated to content under 50 ℃ be 70% high purity phytic acid.In solution, add amount of liquid 5% gac, stir decolour finished product.
Embodiment 2
Took by weighing the defatted rice bran 100g of 40 mesh sieves, and added the 1000ml deionized water, middle temperature amylase 30U/g material stirred enzymolysis 1 hour.Add hydrochloric acid and transfer pH of mixed to 2, under the 300W condition behind the supersound process 20min, stirring and leaching 30min.Collect filtrate behind the suction filtration.Is 5000 daltonian ultra-filtration membranes with filtrate by molecular weight cut-off, transfers pH to 7 with 10% sodium hydroxide solution, constantly stirs in the N-process.Left standstill after having neutralized 2 hours, and filtered De Feiting.Thorough washing is carried out in luxuriant and rich with fragrance spit of fland, be washed till washings and be colourless.The luxuriant and rich with fragrance spit of fland of specific humidity by volume: resin=add pre-treatment good 732 resin dissolves luxuriant and rich with fragrance spit of fland at 1: 2, suction filtration is removed insoluble impurity.Luxuriant and rich with fragrance spit of fland acidizing fluid is crossed 732 cationic exchange coloums,, diluted plant acid solution is evaporated to content under 50 ℃ be 70% high purity phytic acid.In solution, add amount of liquid 5% gac, stir decolour finished product.
Embodiment 3
Took by weighing the defatted rice bran 100g of 40 mesh sieves, and added the 800ml deionized water, middle temperature amylase 30U/g material stirred enzymolysis 1 hour.Add hydrochloric acid and transfer pH of mixed to 2, under the 600W condition behind the supersound process 10min, stirring and leaching 30min.Collect filtrate behind the suction filtration.Is 5000 daltonian ultra-filtration membranes with filtrate by molecular weight cut-off, with 10% calcium hydroxide ultrafiltrated is transferred pH to 6.0, constantly stirs in the N-process.Left standstill after having neutralized 2 hours, and filtered De Feiting.Thorough washing is carried out in luxuriant and rich with fragrance spit of fland, be washed till washings and be colourless.The luxuriant and rich with fragrance spit of fland of specific humidity by volume: resin=add pre-treatment good 732 resin dissolves luxuriant and rich with fragrance spit of fland at 1: 2, suction filtration is removed insoluble impurity.Luxuriant and rich with fragrance spit of fland acidizing fluid is crossed 732 cationic exchange coloums,, diluted plant acid solution is evaporated to content under 50 ℃ be 70% high purity phytic acid.In solution, add amount of liquid 5% gac, stir decolour finished product.
Claims (3)
1. one kind is raw material with the defatted rice bran, fully utilizes the technology that ultrasonic and membrane technique is produced the high purity phytic acid, it is characterized in that earlier the defatted rice bran soak solution being carried out suitable enzymolysis, and the carrying out of filtration step after being beneficial to shortens filtration time; Utilize ultrasonic-assisted extraction, shortened extraction time greatly; The acid extract is after the ultra-filtration membrane ultrafiltration, macromolecular substance such as albumen, polysaccharide can be removed, improved luxuriant and rich with fragrance spit of fland quality, utilize the luxuriant and rich with fragrance spit of fland of reproducible 732 resin acidifyings, reduce in the subsequent step loss to resin, prolong regeneration of resin number of times and work-ing life, thereby improved the quality and the economic benefit of product.
2. concrete technological process is as follows:
(1) raw material: the defatted rice bran with mistake 40 mesh sieves is a raw material,
(2) enzymolysis: solid-liquid ratio 1: 8, warm amylase in adding, (30U/g rice bran) stirred enzymolysis 1 hour,
(3) ultrasonic auxiliary lixiviate: transfer mixed solution PH to 2 with hydrochloric acid, under the 400W condition behind the supersound process 10min, stirring and leaching 30min.Collect filtrate behind the suction filtration,
(4) ultrafiltration: is 3000 daltonian ultra-filtration membranes with filtrate by molecular weight cut-off, removes macromolecular substance such as Deproteinization, polysaccharide,
(5) neutralization: with 10% calcium hydroxide ultrafiltrated is transferred PH to 3.5, transfer PH to 7 with 10% sodium hydroxide solution again, constantly stir in the N-process.Left standstill after having neutralized 2 hours, and filtered De Feiting,
(6) washing: thorough washing is carried out in luxuriant and rich with fragrance spit of fland, be washed till washings and be colourless, clean C1
-Deng negatively charged ion,
(7) the luxuriant and rich with fragrance spit of fland of acidifying: the luxuriant and rich with fragrance spit of fland of specific humidity by volume: resin=add pre-treatment good 732 resin dissolves luxuriant and rich with fragrance spit of fland at 1: 2, suction filtration is removed insoluble impurity,
(8) ion-exchange: luxuriant and rich with fragrance spit of fland acidizing fluid is crossed 732 cationic exchange coloums, thoroughly remove positively charged ions such as calcium, magnesium,
(9) concentrate: diluted plant acid solution is evaporated to content under 50 ℃ be 70% high purity phytic acid,
(10) decolouring: in solution, add amount of liquid 5% gac, stir decolour finished product.
3. according to the preparation method of the described phytic acid of claim 1, it is characterized in that:
(1) utilize ultrasonic-assisted extraction, shorten the extraction time of rice bran phytic acid, improve extraction efficiency,
(2) sour extract can be removed macromolecular substance such as albumen, polysaccharide after the ultra-filtration membrane ultrafiltration, has improved luxuriant and rich with fragrance spit of fland quality, to the loss of resin, prolongs regeneration of resin number of times and work-ing life in the minimizing subsequent step, thereby has improved the quality and the economic benefit of product.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103980305A (en) * | 2014-04-04 | 2014-08-13 | 浙江恒乐粮食有限公司 | Ultrafiltration membrane treating method for degreased rice bran phytic acid extract |
| CN104530118A (en) * | 2015-01-12 | 2015-04-22 | 国家电网公司 | Method for extracting phytic acid from rice bran |
| CN104630316A (en) * | 2013-11-12 | 2015-05-20 | 中粮营养健康研究院有限公司 | Integrated technology for extracting proteins and phytin from corn steep liquor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1405170A (en) * | 2001-08-22 | 2003-03-26 | 陈志明 | Process method for extracting phytic acid from rice bran |
| CN101838287A (en) * | 2010-05-27 | 2010-09-22 | 合肥工业大学 | Method for circularly extracting phytic acid from lactic acid assisted by ultrasonic waves |
| CN102618609A (en) * | 2012-03-26 | 2012-08-01 | 郑州凯乐生物能有限公司 | Method for comprehensively utilizing degreased rice bran |
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2013
- 2013-04-22 CN CN2013101381985A patent/CN103214512A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1405170A (en) * | 2001-08-22 | 2003-03-26 | 陈志明 | Process method for extracting phytic acid from rice bran |
| CN101838287A (en) * | 2010-05-27 | 2010-09-22 | 合肥工业大学 | Method for circularly extracting phytic acid from lactic acid assisted by ultrasonic waves |
| CN102618609A (en) * | 2012-03-26 | 2012-08-01 | 郑州凯乐生物能有限公司 | Method for comprehensively utilizing degreased rice bran |
Non-Patent Citations (1)
| Title |
|---|
| 许杰等，: ""从粮油加工副产产物提取植酸的研究"", 《中国粮油学报》, no. 4, 31 December 1989 (1989-12-31), pages 12 - 15 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104630316A (en) * | 2013-11-12 | 2015-05-20 | 中粮营养健康研究院有限公司 | Integrated technology for extracting proteins and phytin from corn steep liquor |
| CN103980305A (en) * | 2014-04-04 | 2014-08-13 | 浙江恒乐粮食有限公司 | Ultrafiltration membrane treating method for degreased rice bran phytic acid extract |
| CN104530118A (en) * | 2015-01-12 | 2015-04-22 | 国家电网公司 | Method for extracting phytic acid from rice bran |
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Application publication date: 20130724 |