CN102524740B - Nitraria plant salt and preparation method thereof - Google Patents
Nitraria plant salt and preparation method thereof Download PDFInfo
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Abstract
The invention provides Nitraria plant salt and a preparation method thereof. The Nitraria plant salt contains the following components in percentage by weight: 10.3 to 40.3 percent of sodium chloride, 8.0 to 16.0 percent of potassium chloride, 3.5 to 12.0 percent of calcium, 1.5 to 5.5 percent of magnesium, 0.05 to 0.40 percent of iron, 0.010 to 0.065 percent of manganese, 0.0024 to 0.0045 percent of copper, and 0.0010 to 0.035 percent of zinc. The preparation method of the Nitraria plant salt comprises a step of charring a Nitraria plant to obtain a charred material and a step of performing water extraction and acid extraction to the charred material. The preparation method can be adopted to produce Nitraria plant salt which can serve as low-sodium salt and can also utilize Nitraria plants to reduce the salt and alkali contents of soil and improve the ecological environment.
Description
Technical field
The present invention relates to Nitraria plant salt and preparation method thereof.
Background technology
Salt is requisite flavouring in people's daily life, also is indispensable important substance in the metabolic processes simultaneously, can keep the acid-base balance of body fluid, keeps extracellular fluid osmotic pressure.If human body did not absorb salt in continuous several days, can cause weak all overly, the body resistance ability descends, and produces various diseases.The main component of salt is NaCl at present, but the salt of excessive amount (high sodium salt) can make sodium potassium out of proportion, causes diseases such as hypertension, cardiovascular and cerebrovascular diseases, heart disease.Thus, having risen with low sodium chloride on the market gradually is " Cardia Salt ", the enriched nutrient salt that potassium chloride is rationally added on the basis, the production of these salts is also basic to be primary raw material with traditional sea salt, well salt and rock salt, obtain corresponding product by increasing corresponding nutrient, all belong to inorganic salts salt.
A kind of method for preparing nutritious plant salt is disclosed among the Chinese patent ZL02802456.7, this method is specially by with seawater and the mixture that contains the abraum salt halogen of potassium and magnesium the plant of halophytes kind being irrigated, and irrigate jointly with the propiodal material, gather in the crops then, wash and dry described plant, and it is carried out charing, burning, and obtain thick plant salt, then described thick plant salt is dissolved in water, after filtration, evaporation, crystallization, obtain refined plant salt.
Disclose a kind of method for preparing seepweed plant salt among the Chinese patent application CN101040705A, this method comprises chooses the fluffy young stem and leaf of high-quality alkali, cleans and dries, and use the squeezer squeezing, and extrude juice, centrifugal, get the fluffy juice stoste of alkali behind micro-pore-film filtration, drying is made finished product then.
Nitraria (Nitraria L.) plant, salt tolerant alkali, xeromorph is hanged down brushwood.The whole world has 12 kinds, there are 7 kinds in China, mainly be distributed in ground such as Gansu, Xinjiang, the Inner Mongol, self-sow is on stalk highland, salination slope and ridge, mound, shale seabeach type bare area, salt resistance ability is extremely strong, can salt content up to more than 1%, pH heavy salinized ground growth in 9～10, can effectively improve the alkaline land soil fertility, for the existence of other plant group creates conditions, it is one of the good saline and alkaline soil of improvement shrub plant.
China's salt-soda soil area is wide, and in the northwest, western and each coastal region in North China, northeast has distribution, and the Nitraria plant can absorb salinity and various nutriment as the polysalt plant from the high soil of saline and alkaline degree, the salt-soda soil is improved.
Summary of the invention
The invention provides a kind of Nitraria plant salt and preparation method thereof, in order to solve the high problem of illness rate due to the long-term edible high sodium salt that exists in the prior art.Concrete scheme is as follows.
The invention provides a kind of Nitraria plant salt, in this Nitraria plant salt, by percentage to the quality, contain sodium chloride 10.3%～40.3%, potassium chloride 8.0%～16.0%, calcium 3.5%～12.0%, magnesium 1.5%～5.5%, iron 0.05%～0.40%, manganese 0.010%～0.065%, copper 0.0024%～0.0045%, zinc 0.0010%～0.035%.Preferably contain sodium chloride 34.3%～39.3%, potassium chloride 13.2%～15.5%, calcium 8.6%～10.8%, magnesium 4.2%～5.2%, iron 0.20%～0.22%, manganese 0.022%～0.031%, copper 0.0024%～0.0039%, zinc 0.024%～0.028%.
The present invention also provides the method for the above-mentioned Nitraria plant salt of preparation, and this method may further comprise the steps:
(1) dialogue thorn platymiscium carries out charing, gets carbide,
(2) described carbide is carried out water extraction, acid extractants successively.
In said method, can sting before platymiscium carries out charing at dialogue, to described Nitraria plant wash, dry, pulverize.
Wherein, it is centrifugal that described drying comprises that the Nitraria plant after utilizing centrifuge to cleaning earlier carries out, then at 60 ℃～80 ℃ following freeze-day with constant temperature.
In said method, preferably described Nitraria plant is pulverized, can enough pass through 30～50 mesh sieves, carry out charing thus more fully.
The preferred pH value that uses is that 4～6 watery hydrochloric acid carries out described acid extractants in preparation method of the present invention.
In preparation method of the present invention, preferably under 200 ℃～300 ℃, carry out described charing, can reduce energy resource consumption thus.
In addition, in above-mentioned preparation method, preferably use Siberia to sting blade in vain and/or Tang's Gu Tebaici blade prepares the Nitraria plant salt.Because the content of each element is higher than branch in the blade, so can access the higher Nitraria plant salt of each constituent content.And, the blade of gathering during preferably using 7～9 parts, this moment, blade was ripe attitude, and the content of each element that absorbs from soil is maximum, be conducive to most improve each constituent content, and owing to be before white thorn fallen leaves, to gather blade, thereby can prevent effectively that the inorganic salts that contain in the blade from returning in the soil, the saline and alkaline degree that adds heavy soil is so preparation method of the present invention can play the effect of improving the soil.In addition, blade can be preserved after cleaning and drying for a long time.
In above-mentioned preparation method, preferably use deionized water, to avoid the influence of water intermediate ion.
Nitraria plant salt of the present invention can be used as Cardia Salt, thereby reduces the incidence of disease of various angiocardiopathies.Utilize the preparation method of Nitraria plant salt of the present invention, the especially higher Nitraria plant salt of content of elements of each constituent content can be provided, and this method need not with seawater and the mixture that contains the abraum salt halogen of potassium and magnesium plant to be irrigated, thereby can obtain the higher plant salt of each constituent content with simple preparation method.In addition, preparation method's carbonization temperature of the present invention is low, is conducive to energy savings.And because this preparation method can use the white thorn blade that can absorb inorganic salts from soil to extract plant salt, so can reduce the saline and alkaline degree of soil, improve the ecological environment.
The specific embodiment
Below utilize specific embodiment that the present invention is described, but the present invention is not limited to these embodiment.
At first, the inventor gathers white thorn blade or the branch in the different places of production, extracts preparation Nitraria plant salt respectively.Concrete operations are as follows.
During 7-9 month, gather white thorn blade (or branch), and wash, use deionized water rinsing again.Utilize then centrifuge with the rotating speed of 2000-5000 rev/min (for example 4000 rev/mins) with centrifugal 5～10 minutes of blade (or branch) (for example 10 minutes).Next at 75 ℃～80 ℃ (for example 80 ℃) following freeze-day with constant temperature, pulverize blade (or branch) then and pass through 40 mesh sieves, collection is minced by the xeraphium of sieve, puts it in the porcelain container and carry out charing while stirring under 200 ℃～300 ℃ (for example 250 ℃), produces until no black smoke.In carbide, add water, fully stir, filter, collect filtrate and filter residue.
In filter residue, add watery hydrochloric acid, and make PH be about 4～6, stirred 0.5 hour, filter, collect filtrate.Then itself and above-mentioned filtrate are merged, the evaporation desolventizing obtains white solid, i.e. the Nitraria plant salt.
Utilize Z-5300 type atomic absorption spectrophotometer (Hitachi, Ltd) that each the Nitraria plant salt that obtains is carried out elementary analysis, the results are shown in Table 1.Need to prove, " Tang Ye " expression Gu Tebaici of the Tang blade in the table 1, blade is stung in " western leaf " expression Siberia in vain, and in like manner " Tang's branch " represents the Gu Tebaici of Tang branch, and branch is stung in " west branch " expression Siberia in vain.
Table 1
As shown in Table 1, for a kind of white thorn, the content of each composition generally is higher than the content in the branch in the blade for the same place of production.Therefore, preferred blade and keep branch is conducive to obtain salinity like this, and is conducive to the collection of next year leaf in the present invention.
Embodiment 1
During 7-9 month, gather Siberia and sting blade and the common 6.33kg of the Gu Tebaici of Tang blade in vain, remove the blade that rots, and wash, use deionized water rinsing again.Utilize then centrifuge with the rotating speed of 2000-5000 rev/min (for example 4000 rev/mins) with centrifugal 5～10 minutes of blade (for example 10 minutes).Next at 75 ℃～80 ℃ (for example 80 ℃) the following blade of freeze-day with constant temperature after centrifugal, pulverize blade then and pass through 40 mesh sieves, collect the blade crushed material 2.25kg by sieve, put it in the porcelain container and under 200 ℃～300 ℃ (for example 250 ℃), carry out charing while stirring, produce until no black smoke.In carbide, add the 3L deionized water, fully stir, filter, collect filtrate and filter residue respectively.
In filter residue, add watery hydrochloric acid, and make PH be about 4, stirred 0.5 hour, filter, collect filtrate.Merge with above-mentioned filtrate then, the evaporation desolventizing obtains white solid, i.e. Nitraria plant salt 0.482kg.
Utilize Z-5300 type atomic absorption spectrophotometer (Hitachi, Ltd) that the Nitraria plant salt that embodiment 1 obtains is carried out elementary analysis, the results are shown in Table 2.
Table 2
| Composition | NaCl | KCl | Ca | Mg | Fe | Mn | Cu | Zn |
| Mass percent (%) | 39.3 | 14.7 | 10.1 | 4.7 | 0.22 | 0.031 | 0.0024 | 0.028 |
Embodiment 2
During 7-9 month, gather Siberia and sting blade and the common 4.0kg of the Gu Tebaici of Tang blade in vain, remove the blade that rots, and wash, use deionized water rinsing again.Utilize then centrifuge with the rotating speed of 2000-5000 rev/min (for example 3000 rev/mins) with centrifugal 5～10 minutes of blade (for example 7 minutes).Next at 60 ℃～80 ℃ (for example 75 ℃) the following blade of freeze-day with constant temperature after centrifugal, pulverize blade then and pass through 40 mesh sieves, collect the blade crushed material 1.1kg by sieve, put it in the porcelain container and under 200 ℃～300 ℃ (for example 280 ℃), carry out charing while stirring, produce until no black smoke.In carbide, add the 2L deionized water, fully stir, filter, collect filtrate and filter residue respectively.
In filter residue, add watery hydrochloric acid, and make PH be about 5, stirred 0.5 hour, filter, collect filtrate.Merge above-mentioned filtrate then, the evaporation desolventizing obtains white solid, i.e. Nitraria plant salt 0.25kg.
Utilize Z-5300 type atomic absorption spectrophotometer (Hitachi, Ltd) that the Nitraria plant salt that embodiment 2 obtains is carried out elementary analysis, the results are shown in Table 3.
Table 3
| Composition | NaCl | KCl | Ca | Mg | Fe | Mn | Cu | Zn |
| Mass percent (%) | 34.3 | 13.2 | 10.8 | 4.2 | 0.20 | 0.027 | 0.0037 | 0.024 |
Embodiment 3
During 7-9 month, gather Siberia and sting blade and the common 3.8kg of the Gu Tebaici of Tang blade in vain, remove the blade that rots, and wash, use deionized water rinsing again.Utilize then centrifuge with the rotating speed of 2000-5000 rev/min (for example 5000 rev/mins) with centrifugal 10 minutes of blade.Next at 60 ℃～80 ℃ (for example 60 ℃) the following blade of freeze-day with constant temperature after centrifugal, pulverize blade then and pass through 40 mesh sieves, collect the blade crushed material 0.92kg by sieve, put it in the porcelain container and under 200 ℃～300 ℃ (for example 300 ℃), carry out charing while stirring, produce until no black smoke.In carbide, add the 2L deionized water, fully stir, filter, collect filtrate and filter residue respectively.
In filter residue, add watery hydrochloric acid, and make PH be about 6, stirred 0.5 hour, filter, collect filtrate.Merge above-mentioned filtrate then, the evaporation desolventizing obtains white solid, i.e. Nitraria plant salt 0.21kg.
Utilize Z-5300 type atomic absorption spectrophotometer (Hitachi, Ltd) that the Nitraria plant salt that embodiment 3 obtains is carried out elementary analysis, the results are shown in Table 4.
Table 4
| Composition | NaCl | KCl | Ca | Mg | Fe | Mn | Cu | Zn |
| Mass percent (%) | 38.3 | 15.5 | 8.6 | 5.2 | 0.22 | 0.022 | 0.0039 | 0.026 |
Comparative example 1
During 7-9 month, gather Siberia and sting blade and the common 5.1kg of the Gu Tebaici of Tang blade in vain, remove the blade that rots, and wash, use deionized water rinsing again.Utilize then centrifuge with 4000 rev/mins rotating speed with centrifugal 10 minutes of blade.Next the blade after 80 ℃ of following freeze-day with constant temperature are centrifugal is pulverized blade then and by 40 mesh sieves, is collected the blade crushed material 1.6kg by sieve, puts it into and carry out charing in the porcelain container while stirring under 250 ℃, produces until no black smoke, gets carbide.
Above-mentioned carbide is divided into 4 parts, i.e. carbide A, carbide B, carbide C, carbide D.Carry out following experiment respectively.
In carbide A, add 3L water, fully stir, filter, collect filtrate and filter residue respectively.In filter residue, add 3L water again, fully stir, filter, get filtrate.Merging filtrate, the evaporation desolventizing obtains white solid, i.e. Nitraria plant salt A.
Add the 300ml pH value in the carbide B and be 5 watery hydrochloric acid, fully stir, filter, collect filtrate and filter residue respectively.In filter residue, add 3L water again, fully stir, filter, get filtrate.Merging filtrate, the evaporation desolventizing obtains white solid, i.e. Nitraria plant salt B.
Add the 400ml pH value in the carbide C and be 5 watery hydrochloric acid, fully stir, filter, collect filtrate and filter residue respectively.In filter residue, add 3L water again, fully stir, filter, get filtrate.Merging filtrate, the evaporation desolventizing obtains white solid, i.e. Nitraria plant salt C.
In carbide D, add 3L water, fully stir, filter, collect filtrate and filter residue respectively.Add the 300ml pH value in the filter residue again and be 5 watery hydrochloric acid, fully stir, filter, get filtrate.Merging filtrate, the evaporation desolventizing obtains white solid, i.e. Nitraria plant salt D.
Utilize Z-5300 type atomic absorption spectrophotometer (Hitachi, Ltd) that the above-mentioned Nitraria plant salt A that obtains, B, C, D are carried out elementary analysis respectively, the results are shown in Table 5.
Table 5
By comparative example 1 as can be seen, it is extremely low only to extract the content of Fe, Mn, Cu, Zn among the plant salt A that obtains by twice water, and NaCl, KCl, Ca, Mg also are lower than the plant salt through acid extractants.By each component content among plant salt B, the C as can be known, the content that increases each composition with the consumption of watery hydrochloric acid increases to some extent.And the content by each composition among relatively plant salt B, the D as can be known, extracts by acid extractants through water earlier that the content of each composition is higher than the content that extracts each composition in the resulting plant salt earlier through acid extractants by water in the resulting plant salt.And, content by each composition among relatively plant salt C, the D as can be known, under the situation that obtains the essentially identical plant salt of each composition, preparation method of the present invention, namely earlier after water extracts again the method through acid extractants can reduce sour use amount, be conducive to improve operability.
Comparative example 2
During 7-9 month, gather Siberia and sting blade and the common 10.6kg of the Gu Tebaici of Tang blade in vain, remove the blade that rots, and wash, use deionized water rinsing again.Utilize then centrifuge with 5000 rev/mins rotating speed with centrifugal 20 minutes of blade.Next the blade after 80 ℃ of following freeze-day with constant temperature are centrifugal is pulverized blade then and by 40 mesh sieves, is collected the blade crushed material 3.2kg by sieve.
Take by weighing 2 parts of blade crushed materials, each 0.3kg carries out following experiment, to estimate different charing degree to the influence of each component content in the resulting Nitraria plant salt.
Will be wherein 1 part of blade crushed material put into the porcelain container and under 280 ℃, carry out charing while stirring, do not have the black smoke generation after 2 hours substantially.In carbide, add the 1L deionized water, fully stir, filter, collect filtrate and filter residue respectively.In filter residue, add watery hydrochloric acid 300ml, and make PH be about 6, stirred 0.5 hour, filter, collect filtrate.Merge above-mentioned filtrate then, concentrate, get concentrate.
Another part blade crushed material is put into the porcelain container under 280 ℃, carry out charing while stirring, do not have black smoke after 2 hours substantially and produce, continue charing about 1 hour, do not have black smoke fully and produce.In carbide, add the 1L deionized water, fully stir, filter, collect filtrate and filter residue respectively.In filter residue, add watery hydrochloric acid 300ml, and make PH be about 6, stirred 0.5 hour, filter, collect filtrate.Merge above-mentioned filtrate then, concentrate, get concentrate.
Take by weighing 7 parts of blade crushed materials more respectively, each 0.3kg carries out following experiment, to estimate different carbonization temperatures to the influence of sodium, potassium, calcium, content of magnesium.
The blade crushed material is put into the porcelain container respectively, and respectively in the no black smoke generation after 3 hours of charing under the carbonization temperature shown in the table 6.In carbide, add the 1L deionized water, fully stir, filter, collect filtrate and filter residue respectively.In filter residue, add watery hydrochloric acid, and make PH be about 6, stirred 0.5 hour, filter, collect filtrate.Merge above-mentioned filtrate then, concentrate, get concentrate.
Utilize Z-5300 type atomic absorption spectrophotometer (Hitachi, Ltd) that each concentrate that obtains in the comparative example 2 is carried out elementary analysis, and the content of each element in the unit's of being scaled blade crushed material, namely unit is mg/g blade crushed material, the results are shown in Table 6
Table 6
| Temperature | Sodium | Potassium | Calcium | Magnesium |
| 280℃/2hr | 28.52 | 10.57 | 49.81 | 1.53 |
| 280℃/3hr | 28.68 | 10.78 | 49.72 | 1.62 |
| 300℃ | 28.62 | 10.97 | 50.63 | 1.60 |
| 350℃ | 27.09 | 9.86 | 66.32 | 1.06 |
| 400℃ | 27.73 | 10.14 | 71.98 | 1.03 |
| 450℃ | 28.53 | 9.67 | 22.65 | 0.56 |
| 500℃ | 28.33 | 9.92 | 14.93 | 0.62 |
| 550℃ | 28.08 | 10.23 | 10.07 | 0.68 |
| 600℃ | 28.13 | 9.63 | 13.98 | 0.59 |
By comparative example 2 as can be known, in the plant salt of 280 ℃ of following charings 2 hours (basic charing, but still have the minute quantity black smoke to produce) and 3 hours (charing fully, no black smoke generation) gained, sodium, potassium, calcium, content of magnesium there is no obvious difference.So consider from the aspect of energy savings, charing does not get final product to there being the black smoke generation substantially.In addition, when carbonization temperature was higher than 300 ℃, the content of sodium, potassium, calcium, magnesium was not significantly improved in the Nitraria plant salt, and part unit have downward trend on the contrary.Therefore, the present invention carries out charing under 200 ℃～300 ℃, has not only obtained the higher plant salt of each constituent content, and can energy savings.
Comparative example 3
Carry out acid extractants to the influence of each constituent content under the different PH
Except carrying out under the PH shown in the table 7 acid extractants, utilize the method extraction Nitraria plant identical with embodiment 1.In addition, as different from Example 1, the filtrate that merges is concentrated, get concentrate.
Utilize Z-5300 type atomic absorption spectrophotometer (Hitachi, Ltd) that each concentrate that comparative example 3 obtains is carried out elementary analysis, and the content of each element in the unit's of being scaled blade crushed material, the results are shown in Table 7.
Table 7
As shown in Table 7, when the pH value of acid extractants liquid was lower than 7, the variation of PH was not remarkable to the influence of each component content.So consider from the operability aspect, preferably when carrying out acid extractants, the solution pH value be adjusted to 4～6.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (8)
1. a Nitraria plant salt is characterized in that, prepare by the preparation method who may further comprise the steps,
(1) dialogue thorn platymiscium carries out charing, gets carbide,
(2) described carbide is carried out water extraction, acid extractants successively,
And, described Nitraria plant salt contains sodium chloride 10.3%～40.3%, potassium chloride 8.0%～16.0%, calcium 3.5%～12.0%, magnesium 1.5%～5.5%, iron 0.05%～0.40%, manganese 0.010%～0.065%, copper 0.0024%～0.0045%, zinc 0.0010%～0.035% by percentage to the quality.
2. Nitraria plant salt according to claim 1, it is characterized in that, contain sodium chloride 34.3%～39.3%, potassium chloride 13.2%～15.5%, calcium 8.6%～10.8%, magnesium 4.2%～5.2%, iron 0.20%～0.22%, manganese 0.022%～0.031%, copper 0.0024%～0.0039%, zinc 0.024%～0.028%.
3. Nitraria plant salt according to claim 1 and 2 is characterized in that, before dialogue thorn platymiscium carries out charing, also comprise to described Nitraria plant wash, dry, pulverize, sieve.
4. Nitraria plant salt according to claim 3 is characterized in that, described drying comprises the described Nitraria plant that utilizes earlier behind the centrifuge centrifugal elutriation, then at 60 ℃～80 ℃ following freeze-day with constant temperature.
5. Nitraria plant salt according to claim 3 is characterized in that, described Nitraria plant is pulverized, and can enough pass through 30～50 mesh sieves.
6. according to claim 3 or 4 described Nitraria plant salts, it is characterized in that, under 200 ℃～300 ℃, carry out described charing.
7. according to claim 3 or 4 described Nitraria plant salts, it is characterized in that using pH value is that 4～6 watery hydrochloric acid carries out described acid extractants.
8. according to claim 3 or 4 described Nitraria plant salts, it is characterized in that described Nitraria plant is that Siberia is stung blade and/or the Gu Tebaici of Tang blade in vain.
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| CN105027878B (en) * | 2015-06-23 | 2018-06-29 | 潍坊友容实业有限公司 | Low nickel salt-soda soil plantation Suaeda salsa and the method for extracting plant salt in a kind of |
| CN107048117A (en) * | 2017-03-28 | 2017-08-18 | 阜南椰枫食品有限公司 | A kind of method for improving lemon salt soda water nutritive value |
| CN108056451A (en) * | 2017-12-28 | 2018-05-22 | 潍坊友容实业有限公司 | The method that high temperature prepares Baici plant salt |
| CN110638027A (en) * | 2019-10-10 | 2020-01-03 | 南京益唯森生物科技有限公司 | Method for extracting plant salt from nitraria tangutorum leaves |
| CN110638026A (en) * | 2019-10-10 | 2020-01-03 | 南京益唯森生物科技有限公司 | Method for extracting plant salt from fresh nitraria tangutorum leaves |
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