CN105124712A - Method for reducing content of imidacloprid in medlar juice - Google Patents
Method for reducing content of imidacloprid in medlar juice Download PDFInfo
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- CN105124712A CN105124712A CN201510647747.0A CN201510647747A CN105124712A CN 105124712 A CN105124712 A CN 105124712A CN 201510647747 A CN201510647747 A CN 201510647747A CN 105124712 A CN105124712 A CN 105124712A
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- Prior art keywords
- wolfberry juice
- imidacloprid
- juice
- wolfberry
- active carbon
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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
- A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
- A23L2/70—Clarifying or fining of non-alcoholic beverages; Removing unwanted matter
- A23L2/72—Clarifying or fining of non-alcoholic beverages; Removing unwanted matter by filtration
-
- 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
- A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
- A23L2/02—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation containing fruit or vegetable juices
- A23L2/04—Extraction of juices
-
- 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
- A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
- A23L2/70—Clarifying or fining of non-alcoholic beverages; Removing unwanted matter
- A23L2/80—Clarifying or fining of non-alcoholic beverages; Removing unwanted matter by adsorption
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- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Medicines Containing Plant Substances (AREA)
- Non-Alcoholic Beverages (AREA)
Abstract
The invention discloses a method for reducing the content of imidacloprid in medlar juice. The method comprises the steps that 1, fresh medlar fruits are cleaned; 2, the cleaned fresh medlar fruits are crushed; 3, products in the step 2 are squeezed, and the medlar juice is collected; 4, the medlar juice in the step 3 is adsorbed through activated carbon; 5, the medlar juice in the step 4 is filtered through a screen of 60-100 meshes, and the large-particle activated carbon is removed; 6, the medlar juice in the step 5 is further filtered through a plate frame filter with filter cloth, and residual superfine active carbon granules are removed; 7, products in the step 6 are concentrated till the sugar degrees ranges from 13% to 70%, sterilization is carried out, products are obtained, or the filtered products are directly sterilized, and the products are obtained. The fresh medlar juice formed by squeezing the fresh medlar fruits is adsorbed through the activated carbon, the imidacloprid residues in the medlar juice are reduced, and therefore the inherent quality of medlar juice products is improved.
Description
Technical field
The present invention relates to matrimony vine processing technique field, is a kind of method reducing Imidacloprid content in wolfberry juice concretely.
Background technology
At present along with the development of matrimony vine process deeply industry, and domestic and international market is increasing to matrimony vine fresh the squeeze the juice demand broken and next by medlar fresh fruit, and annual matrimony vine is fresh squeezes the juice marketing scale all more than 1000 tons.But owing to using agricultural chemicals in matrimony vine planting process, causing by medlar fresh fruit is that the wolfberry juice Pesticide Residue that raw material is produced becomes increasingly conspicuous, and therefore, controls matrimony vine process, solving residues of pesticides excessive problem, is guarantee that wolfberry juice industry grows one of key factor of development.
In the Detecting Pesticide of wolfberry juice, repeatedly find that Imidacloprid exceeds standard, and has had a strong impact on the sale of wolfberry juice.Imidacloprid is nicotinoids ultra high efficiency pesticide, and have wide spectrum, efficient, low toxicity, low-residual, insect not easily produces resistance, to features such as people, animal, plant and natural enemies securities, and have tag, the multiple action such as stomach toxicity and interior suction.After contacting pests medicament, nervous centralis normal conduction is obstructed, and makes it benumb death.Product quick-acting is good, and within after medicine 1 day, namely have higher preventive effect, residual life reaches about 25 days.Drug effect and temperature are proportionate, and temperature is high, good disinsection effect.The maximum feature of Imidacloprid is a kind of agricultural chemicals with interior absorption matter, stablizes in the sunlight, and this gives and relies on surface-treated pesticide residual degradation technology to bring very large challenge, causes the wolfberry juice produced often because Imidacloprid exceeds standard.
Patent CN101810357A discloses " a kind of method and apparatus removing residual pesticide in fruit juice ", and it adopts macroporous absorbent resin to remove residual pesticide in fruit juice.This invention is only according to the general absorption principle of macroporous absorbent resin, carry out roughly describing to the removal of fruit juice Pesticide Residues, concrete fruit juice and concrete agriculture error term order are not analyzed and illustrated, add macroporous absorbent resin fancy price, this invention is very limited in actual applications.The wolfberry juice simultaneously produced due to current matrimony vine manufacturing enterprise is turbid juice, is actually a kind of matrimony vine pulp, adopts the Dynamic Adsorption way of patent CN101810357A, is easy to cause resin column to block, and causes the waste of precious medlar fresh fruit resource.
Summary of the invention
The object of the present invention is to provide a kind of method reducing Imidacloprid content in wolfberry juice, it squeezes the juice by charcoal absorption by fresh for the matrimony vine of being squeezed the juice by medlar fresh fruit, reduces Determination of Imidacloprid Residue wherein, thus improves the inherent quality of wolfberry juice product.
In order to achieve the above object, technical solution of the present invention is: a kind of method reducing Imidacloprid content in wolfberry juice, it comprises the steps:
(1) fresh Chinese wolfberry fruit is cleaned;
(2) by broken for the fresh Chinese wolfberry fruit after cleaning;
(3) product of step (2) is squeezed, collect wolfberry juice;
(4) adsorb with the wolfberry juice of active carbon to step (3);
(5) use 60-100 eye mesh screen, the wolfberry juice of step (4) is filtered, removes oarse-grained active carbon;
(6) filter further with the wolfberry juice of flame filter press to step (5) that filter cloth is housed, the fine active charcoal particle that removing is residual;
(7) product of step (6) being concentrated into pol is 13-70%, sterilization processing, obtains product;
Or by filtration product, directly carry out sterilization processing, obtain product.
The present invention reduces the method for Imidacloprid content in wolfberry juice, and the scavenging period in wherein said step (1) is 1-60 minute, repeats said process 2 ~ 4 times.
The present invention reduces the method for Imidacloprid content in wolfberry juice, active carbon in wherein said step (4) is rich in the material of carbon for primary raw material, the active carbon be converted into after pyrolysis under being controlled by temperature and pressure in activation furnace with coal or timber or shell or coconut husk or walnut shell or apricot shell or jujube shell.
The present invention reduces the method for Imidacloprid content in wolfberry juice, and the amount adding active carbon in wherein said step (4) is 4-10Kg/10T, and this charcoal absorption, stabilization time are 6-8 hour.
The present invention reduces the method for Imidacloprid content in wolfberry juice, the filter cloth used of the flame filter press in wherein said step (6) is cotton or numb natural fiber or terylene, polypropylene fibre, polyamide fibre the filter medium that is made into of synthetic fibers.
The present invention reduces the method for Imidacloprid content in wolfberry juice, wherein said step (1), (2), (3), (4), (5), (6) all in room temperature lower than 25 DEG C, complete in 24 hours.
The present invention reduces the method for Imidacloprid content in wolfberry juice, and the sterilization processing temperature in wherein said step (7) is 81-85 DEG C, and sterilizing time is 20-40 minute.
After adopting such scheme, the method that the present invention reduces Imidacloprid content in wolfberry juice is squeezed the juice fresh for the matrimony vine of being squeezed the juice by medlar fresh fruit, pass through charcoal absorption, reduce Determination of Imidacloprid Residue wherein, thus improve the inherent quality of wolfberry juice product, it has feasibility economically, and active carbon to have scuff resistance good, space is flourishing, absorption property is high, intensity is high, easy regeneration, economy and durability, be not subject to the advantages such as the impact of inorganic salts plasma and low molecular compound, in environmental protection, medicine, the field application such as food processing are very extensive, the advantage of active carbon is wide in variety, specific area is large, absorption affinity is strong, have selective, Adsorption can be carried out to wolfberry juice Pesticide Residues.
Detailed description of the invention
Below in conjunction with specific embodiment, set forth the present invention further.But these embodiments are only limitted to illustrate that the present invention and being not used in limits the scope of the invention.
Embodiment 1
The present invention reduces the embodiment of the method for Imidacloprid content in wolfberry juice, and it comprises the steps:
(1) cleaned by 1 kilogram of fresh Chinese wolfberry fruit drinking water, scavenging period is 20 minutes, cleans 3 times, collects the fresh Chinese wolfberry fruit after cleaning;
(2) pulp is made in the fresh Chinese wolfberry fruit fragmentation squeezing after step (1) being cleaned;
(3) squeezed by the product of step (2), collect wolfberry juice, sterilizing, sampling detects Imidacloprid content;
(4) adsorb with the wolfberry juice of active fruit shell carbon to step (3), addition is 700 grams, and absorption, stabilization time are 7 hours;
(5) use 80 eye mesh screens, the wolfberry juice of step (4) is filtered, removes oarse-grained active carbon;
(6) by the wolfberry juice that step (5) is collected, filter with the laboratory room small-sized flame filter press that filter medium is cotton;
(7) by the wolfberry juice that step (6) obtains, be placed in closed glass container, in water-bath, carry out sterilization, when sterilization temperature is 81 DEG C, sterilizing time is 20 minutes.Sampling, detects Imidacloprid content.
Step (1), (2), (3), (4), (5), (6) all in room temperature lower than 25 DEG C, complete in 24 hours.
Imidacloprid detection method is the mensuration high performance liquid chromatography of Determination of Imidacloprid Residue " in GB/T23379-2009 fruit, vegetables and the tealeaves ", through detecting, before wolfberry juice adds active carbon, Imidacloprid content is 0.17PPM, after adding charcoal absorption, Imidacloprid content is 0.05PPM.
Embodiment 2
The present invention reduces the embodiment of the method for Imidacloprid content in wolfberry juice, and it comprises the steps:
(1) cleaned by 5 kilograms of fresh Chinese wolfberry fruit drinking water, scavenging period is 20 minutes, cleans 3 times, collects the fresh Chinese wolfberry fruit after cleaning;
(2) pulp is made in the fresh Chinese wolfberry fruit fragmentation squeezing after step (1) being cleaned;
(3) squeezed by the product of step (2), collect wolfberry juice, sterilizing, sampling detects Imidacloprid content;
(4) adsorb with the wolfberry juice of active fruit shell carbon to step (3), addition is 4000 grams, and absorption, stabilization time are 7 hours;
(5) use 80 eye mesh screens, the wolfberry juice of step (4) is filtered, removes oarse-grained active carbon;
(6) by the wolfberry juice that step (5) is collected, filter with the laboratory room small-sized flame filter press that filter medium is cotton;
(7) by the wolfberry juice that step (6) obtains, at the temperature of 65 DEG C and under the vacuum of 0.08Mpa, concentrate with Rotary Evaporators, being concentrated into pol is 35%, is then placed in closed glass container, in water-bath, carries out sterilization, when sterilization temperature is 81 DEG C, sterilizing time is 20 minutes.Sampling, detects Imidacloprid content.
Step (1), (2), (3), (4), (5), (6) all in room temperature lower than 25 DEG C, complete in 24 hours.
Through detecting, before wolfberry juice adds active carbon, Imidacloprid content is 0.12PPM, and after adding charcoal absorption, Imidacloprid content is 0.03PPM.
The above embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that the common engineers and technicians in this area make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determine.
Claims (7)
1. reduce a method for Imidacloprid content in wolfberry juice, it comprises the steps:
(1) fresh Chinese wolfberry fruit is cleaned;
(2) by broken for the fresh Chinese wolfberry fruit after cleaning;
(3) product of step (2) is squeezed, collect wolfberry juice;
(4) adsorb with the wolfberry juice of active carbon to step (3);
(5) use 60-100 eye mesh screen, the wolfberry juice of step (4) is filtered, removes oarse-grained active carbon;
(6) filter further with the wolfberry juice of flame filter press to step (5) that filter cloth is housed, the fine active charcoal particle that removing is residual;
(7) product of step (6) being concentrated into pol is 13-70%, sterilization processing, obtains product;
Or by filtration product, directly carry out sterilization processing, obtain product.
2. the method for Imidacloprid content in reduction wolfberry juice according to claim 1, is characterized in that: the scavenging period in described step (1) is 1-60 minute, repeats said process 2 ~ 4 times.
3. the method for Imidacloprid content in reduction wolfberry juice according to claim 1, it is characterized in that: the active carbon in described step (4) is rich in the material of carbon for primary raw material, the active carbon be converted into after pyrolysis under being controlled by temperature and pressure in activation furnace with coal or timber or shell or coconut husk or walnut shell or apricot shell or jujube shell.
4. the method for Imidacloprid content in reduction wolfberry juice according to claim 1, it is characterized in that: the amount adding active carbon in described step (4) is 4-10Kg/10T, this charcoal absorption, stabilization time are 6-8 hour.
5. the method for Imidacloprid content in reduction wolfberry juice according to claim 1, is characterized in that: the filter cloth used of the flame filter press in described step (6) is cotton or numb natural fiber or terylene, polypropylene fibre, polyamide fibre the filter medium that is made into of synthetic fibers.
6. the method for Imidacloprid content in reduction wolfberry juice according to claim 1, is characterized in that: described step (1), (2), (3), (4), (5), (6) all in room temperature lower than 25 DEG C, complete in 24 hours.
7. the method for Imidacloprid content in reduction wolfberry juice according to claim 1, it is characterized in that: the sterilization processing temperature in described step (7) is 81-85 DEG C, sterilizing time is 20-40 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510647747.0A CN105124712A (en) | 2015-10-09 | 2015-10-09 | Method for reducing content of imidacloprid in medlar juice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510647747.0A CN105124712A (en) | 2015-10-09 | 2015-10-09 | Method for reducing content of imidacloprid in medlar juice |
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| CN105124712A true CN105124712A (en) | 2015-12-09 |
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| CN201510647747.0A Pending CN105124712A (en) | 2015-10-09 | 2015-10-09 | Method for reducing content of imidacloprid in medlar juice |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004194568A (en) * | 2002-12-18 | 2004-07-15 | Tachibana Morimitsu | Method for producing transparent tomato juice |
| CN101731493A (en) * | 2008-11-14 | 2010-06-16 | 周京石 | Production process for removing pesticide residue from extract of Ginkgo biloba |
| CN101744326A (en) * | 2008-12-08 | 2010-06-23 | 宁夏瑞碧枸杞产业有限公司 | Chinese wolfberry juice and preparation method thereof |
| CN104068430A (en) * | 2014-06-07 | 2014-10-01 | 陶峰 | Making method of Chinese wolfberry fruit juice |
-
2015
- 2015-10-09 CN CN201510647747.0A patent/CN105124712A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004194568A (en) * | 2002-12-18 | 2004-07-15 | Tachibana Morimitsu | Method for producing transparent tomato juice |
| CN101731493A (en) * | 2008-11-14 | 2010-06-16 | 周京石 | Production process for removing pesticide residue from extract of Ginkgo biloba |
| CN101744326A (en) * | 2008-12-08 | 2010-06-23 | 宁夏瑞碧枸杞产业有限公司 | Chinese wolfberry juice and preparation method thereof |
| CN104068430A (en) * | 2014-06-07 | 2014-10-01 | 陶峰 | Making method of Chinese wolfberry fruit juice |
Non-Patent Citations (1)
| Title |
|---|
| 张怡 等: ""吡虫啉在枸杞果实中的残留动态研究"", 《农业环境科学学报》 * |
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Application publication date: 20151209 |