CN110558560A - Method for recycling bitter buckwheat soaking water and continuously recovering flavone - Google Patents
Method for recycling bitter buckwheat soaking water and continuously recovering flavone Download PDFInfo
- Publication number
- CN110558560A CN110558560A CN201910705284.7A CN201910705284A CN110558560A CN 110558560 A CN110558560 A CN 110558560A CN 201910705284 A CN201910705284 A CN 201910705284A CN 110558560 A CN110558560 A CN 110558560A
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- CN
- China
- Prior art keywords
- water
- flavone
- soaking
- soaking water
- tartary buckwheat
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L33/00—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
- A23L33/10—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives
- A23L33/105—Plant extracts, their artificial duplicates or their derivatives
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
- A23L5/20—Removal of unwanted matter, e.g. deodorisation or detoxification
Abstract
The invention discloses a method for recycling tartary buckwheat soaking water and continuously recovering flavone, which is characterized by comprising the following steps of: according to the mass fraction, the proportion of the bitter buckwheat to water soaking in the processing of the bitter buckwheat tea is 1: 1, soaking is carried out for 4H, soaking water is filtered and precipitated by nylon cloth, then is disinfected by 5MG/L ozone concentration, the soaking water passes through cationic resin and then is adsorbed by anionic resin, and effluent water is recycled, the water of the soaking water in the processing of the bitter buckwheat tea is recycled, and the harmful elements of lead and cadmium in the water are reduced by 95-98%; adsorbing flavone with anion resin at a adsorption rate of 70-75%, eluting with 50-60% ethanol, recovering ethanol, drying to obtain flavone, and recovering 1-1.5KG water-soluble flavone with flavone content of 55-65% per ton of buckwheat soaking water.
Description
Technical Field
The invention belongs to the field of food processing, and particularly relates to a method for recycling bitter buckwheat soaking water and continuously recovering flavone.
Background
The main components of flavone in the tartary buckwheat are flavonoids such as rutin, quercetin, kaempferol, morin and the like, the total flavone in the buckwheat middle shell, the buckwheat skin and the buckwheat powder is respectively 3.4-9mg/g, 30.4-70mg/g and 0.4-0.9mg/g, wherein the main components of water-soluble flavone are rutin and morin, the total flavone accounts for more than 80 percent, and the flavone is more soluble and absorbable and has the physiological activities of clearing heat and removing toxicity, activating blood and dissolving fatigue, improving microcirculation, reducing blood sugar and fat and the like. In the buckwheat tea adding process, the buckwheat needs to be soaked, the soaking water is 1: 1, the soaking time is 4 hours, then the steaming is carried out, and the drying and the shelling are carried out, so as to prepare the finished buckwheat grain tea. In the processing process of the tartary buckwheat tea, 1 ton of water is generated when each ton of buckwheat is soaked, 1.5-2KG of water-soluble flavone is dissolved out, the soaking water is recycled, the flavone in the soaking water is recovered, the waste water discharge is reduced, the water-soluble flavone is recovered, other functional health-care products are developed, and the economic benefit is increased.
Disclosure of Invention
The invention aims to disclose a method for recycling soaking water in tartary buckwheat tea processing and recovering flavone in a combined manner, which solves the problems of recycling soaking water and recovering flavone in tartary buckwheat tea processing, reduces waste water discharge and recovers water-soluble flavone.
The technical scheme of the invention is as follows: soaking buckwheat in water, precipitating, filtering, sterilizing, adsorbing flavone with cation and anion resin, reusing the effluent water, eluting with ethanol, and recovering water soluble flavone.
The technical scheme for realizing the purpose is as follows: the present invention will be further specifically described with reference to the following examples.
(1) Soaking buckwheat: according to the mass fraction, the proportion of the tartary buckwheat and the water is 1: 1, and the tartary buckwheat and the water are soaked for 4-5H.
(2) Disinfection of the soaking water: soaking buckwheat water, filtering with precipitation and nylon net, and sterilizing the filtered water with ozone concentration of 5 MG/L.
(3) Reuse of the soaking water: the water sterilized by ozone is used for supplementing the water absorbed by buckwheat and the difference of filtration loss, and the soaking water is recycled, so that 80-90% of water is saved.
(4) Adsorption by cationic resin: the treated soaking water passes through cation resin to adsorb heavy metal elements in the soaking water, and harmful elements of lead and cadmium in the water are reduced by 95-98%.
(5) Adsorption of anion resin: the soaking solution flowing out of the cation resin is adsorbed by anion resin, the adsorption rate of flavone is 70-75%, and the flowing-out water is soaked for reuse.
(6) Ethanol elution: eluting with 50-60% ethanol after anion resin flavone is saturated, recovering ethanol, drying to obtain water soluble flavone, recovering water soluble flavone 1-1.5KG from each ton of semen Fagopyri Esculenti soaking water, with flavone content of 55-65%.
(7) Resin regeneration: when the absorption rate of the anion resin is reduced to below 30-40 percent, the anion resin needs to be regenerated and reused.
Claims (2)
1. The method for recycling the tartary buckwheat soaking water and continuously recovering the flavone is characterized in that: according to the mass fraction, the proportion of the tartary buckwheat to the soaking water in the processing of the tartary buckwheat tea is 1: 1, the tartary buckwheat tea is soaked for 4H, the soaking water is filtered and precipitated by nylon cloth, disinfected by 5mg/L of ozone concentration, passes through cation and anion resin, then soaked in the tartary buckwheat water is saved by 80-90%, and the content of lead and cadmium in the soaking water is reduced by 95-98%.
2. The method for recycling tartary buckwheat soaking water and continuously recovering flavone according to claim 1, is characterized in that: after the soaking water is treated, adsorbing flavone with anion resin with flavone adsorption rate of 70-75%, eluting anion resin with ethanol to recover flavone, and continuously recovering water-soluble flavone with flavone content of 55-65% at 1-1.5KG per ton of soaking water of tartary buckwheat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910705284.7A CN110558560A (en) | 2019-07-25 | 2019-07-25 | Method for recycling bitter buckwheat soaking water and continuously recovering flavone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910705284.7A CN110558560A (en) | 2019-07-25 | 2019-07-25 | Method for recycling bitter buckwheat soaking water and continuously recovering flavone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110558560A true CN110558560A (en) | 2019-12-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910705284.7A Pending CN110558560A (en) | 2019-07-25 | 2019-07-25 | Method for recycling bitter buckwheat soaking water and continuously recovering flavone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110558560A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010027341A (en) * | 1999-09-13 | 2001-04-06 | 서경배 | A method for preparation of aglycone of isoflavone |
| CN1597678A (en) * | 2003-09-15 | 2005-03-23 | 辽宁鑫泰天然药物研究所 | Extraction method of hawthorn leaf total flarone |
| CN102641343A (en) * | 2012-05-05 | 2012-08-22 | 耿福能 | Water-soluble tartary buckwheat general flavone extract and preparation method and application thereof |
| CN104857072A (en) * | 2015-04-29 | 2015-08-26 | 昆明理工大学 | Method for recycling walnut polyphenol and flavone in walnut kernel peeling wastewater through macroporous resin |
| CN104982614A (en) * | 2015-07-22 | 2015-10-21 | 威宁县高原大西门荞业有限公司 | Fagopyrum tataricum tea processing method |
| CN107188911A (en) * | 2017-06-30 | 2017-09-22 | 山东中阳生物科技有限公司 | The method that soyabean oligosaccharides and isoflavones are extracted using soy molasses |
| CN107362200A (en) * | 2017-08-08 | 2017-11-21 | 南京中医药大学 | A kind of method that isolating alkaloids and flavones are extracted from mulberry leaf |
-
2019
- 2019-07-25 CN CN201910705284.7A patent/CN110558560A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010027341A (en) * | 1999-09-13 | 2001-04-06 | 서경배 | A method for preparation of aglycone of isoflavone |
| CN1597678A (en) * | 2003-09-15 | 2005-03-23 | 辽宁鑫泰天然药物研究所 | Extraction method of hawthorn leaf total flarone |
| CN102641343A (en) * | 2012-05-05 | 2012-08-22 | 耿福能 | Water-soluble tartary buckwheat general flavone extract and preparation method and application thereof |
| CN104857072A (en) * | 2015-04-29 | 2015-08-26 | 昆明理工大学 | Method for recycling walnut polyphenol and flavone in walnut kernel peeling wastewater through macroporous resin |
| CN104982614A (en) * | 2015-07-22 | 2015-10-21 | 威宁县高原大西门荞业有限公司 | Fagopyrum tataricum tea processing method |
| CN107188911A (en) * | 2017-06-30 | 2017-09-22 | 山东中阳生物科技有限公司 | The method that soyabean oligosaccharides and isoflavones are extracted using soy molasses |
| CN107362200A (en) * | 2017-08-08 | 2017-11-21 | 南京中医药大学 | A kind of method that isolating alkaloids and flavones are extracted from mulberry leaf |
Non-Patent Citations (1)
| Title |
|---|
| 孙慧等: "树脂在黄酮类化合物分离中的应用研究", 应用化工, vol. 46, no. 07, pages 1388 - 1400 * |
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