CN102860444A - Method for reducing content of nitrite in edible bird's nest - Google Patents
Method for reducing content of nitrite in edible bird's nest Download PDFInfo
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- CN102860444A CN102860444A CN2012103205540A CN201210320554A CN102860444A CN 102860444 A CN102860444 A CN 102860444A CN 2012103205540 A CN2012103205540 A CN 2012103205540A CN 201210320554 A CN201210320554 A CN 201210320554A CN 102860444 A CN102860444 A CN 102860444A
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Abstract
The invention discloses a method for reducing content of nitrite in edible bird's nest. The method comprises the following steps of: 1, soaking the edible bird's nest in water for 1 to 3 minutes; 2, taking the edible bird's nest out of the water, and illuminating for 4 to 8 hours; and 3, cycling for 2 to 3 times according to the steps 1 and 2. According to the novel method, the light degradation characteristics of the nitrite are utilized, and solar tube irradiation at a certain intensity is simulated, so that the soaking and washing time is shortened, and the breakage rate of the commodity edible bird's nest is reduced; and meanwhile, the illumination has a certain drying function, the drying process can be eliminated, and the manual cost is greatly reduced, so that various processes of soaking, drying, infiltrating, kneading and forming in the traditional washing process for reducing the nitrite are simplified into three steps of short-period soaking, illuminating and forming; and moreover, according to the same batch, the original operation which is required to be finished by more than ten persons can be finished by only one person within the same working time.
Description
Technical field
The present invention relates to the manufacture field of bird's nest, especially relate to the technique that nitrite is removed in the photodissociation that utilizes nitrite in the bird's nest process.
Background technology
Bird's nest (edible bird's nest, EBN) be that Apodidae (Apodidae) esculent swift belongs to the oozy saliva of multiple birds of (Collocalia) and its eider down condensation by mixing on overhanging cliff, or farmers''s house and the nest nest that builds up, have nourishing yin to moisten dryness, beneficial gas bowl spares, control deficient, expectoration is breathed heavily, spitting of blood, protracted dysentery, be suitable for having a delicate constitution, malnutritive, the protracted dysentery chronic malaria, phlegm is coughed more, and senile chronic bronchitis, bronchiectasis, pulmonary emphysema, pulmonary tuberculosis, spitting of blood are spitted blood and the stomachache patients.The modern medicine study discovery, the bird's nest main component has: water soluble protein, carbohydrate; Trace element: calcium, phosphorus, iron, sodium, potassium and the amino acid (lysine, cystine and arginine) to promoting that the human activity plays an important role.But bird's nest Promote immunity function has delaying human body caducity, and beautifying face and moistering lotion, the effect of promoting longevity are first-class help good merchantable brands.
Nitrite, the general name of a class inorganic compound.Mainly refer to natrium nitrosum, for white to pale yellow powder or graininess, distinguish the flavor of little salty, soluble in water.Outward appearance and flavour are all similar to salt, and in industry, widely use in the building industry, also allow in the meat product as the photoghraphic coupler use of limiting the quantity of.Nitrite easily causes food poisoning.The nitrite of eating 0.3～0.5 gram can cause poisons even death.Nitrite while or a kind of carcinogen.China's " food security national standard food additives Application standard " (GB2760-2011) limiting the quantity of of strict regulations nitrite in food is 30mg/kg.
Ammonia concentration in the swallow saliva in naturally occurring nitrite, swallow room or the cave environment, birds droppings pollute in bird's nest and bird's nest processing and the storage all can produce nitrite.Be not to be to add because of the nitrite in the bird's nest, the past does not have the limit of bird's nest nitrite.2011, because of the problem that blood swallow content of nitrite exceeds standard, cause that people are to the exceed standard attention of problem of bird's nest nitrite.2012, the Ministry of Public Health defend No. (2012) 62, letter of supervision about the letter of circulating a notice of edible bird's nest nitrite temporary control and education Limited Doses in clearly edible bird's nest nitrite temporary control and education Limited Doses be 30 mg/kg.And traditional hair bird's nest makes and the processing of commodity bird's nest often can not be up to standard.
Soluble in water because of nitrite, removing the traditional of bird's nest nitrite also is that the method that the most often adopts is soaking and water washing.General white swallow soaking and water washing 3 hours, blood swallow soaking and water washing 15 hours, can remove nitrite fully, but immersion can cause the distortion of swallow small cup for a long time, increase drying, infiltrate, be affectedly bashful, the multiple working procedures such as moulding, for shortening the soaking and water washing time, can adopt the material that adds some reproducibilities, such as Vc, Tea Polyphenols, vegetable juice etc. are nitrite by the blocking-up nitrate transformation, and reduce the bird's nest nitrite, the method need be added some exotics, cause in the bird's nest exotic residual, nitrate also can change into nitrite along with external condition changes simultaneously.Also having some to utilize physical method such as ultrasonic method, is the patent of " CN202692880A " such as the patent No., adopts this method to need relatively large equipment could realize suitability for industrialized production.
The chemical property of nitrite ion is more stable, and spectrochemical property is unstable, in " Environmental Chemistry " of o. 11th in 2011, mention, in a certain amount of seawater, because the nitrite degradation rate that photochemical effect causes every day can reach 10%, and light application time is longer, intensity of illumination is larger, and the photodegradation rate of nitrite is larger.The light degradation of nitrite produces NO.
Summary of the invention
The object of the present invention is to provide the broken small cup of a kind of reduction bird's nest, simplify whole bird's nest washing process, efficient is high, the method for the content of nitrite in the easy to operate reduction bird's nest.
For solving the problems of the technologies described above, the invention provides a kind of method that reduces the content of nitrite in the bird's nest, may further comprise the steps:
Step 2. is taken out bird's nest from water, illumination 4-8 hour;
Step 3. is by the step cycle of step 1-step 2 2-3 time.
The present invention improves to be had, and described water is the pure water by activated carbon filtration.
For better improving lighting effect, the present invention improves to be had, and the xenon lamp irradiation is adopted in described illumination.
For further improving the photodissociation rate of nitrite, the present invention improves to be had, and the intensity of light source of xenon lamp is 765W/m2, and the distance of bird's nest and xenon lamp is 50cm.
For bird's nest is soaked fully, the present invention improves to be had, and reverberates when bird's nest soaks in water in the described step 1 to wash 2-6 and plow.
The invention has the beneficial effects as follows: compare with traditional bird's nest washing process, new method is utilized the light degradation characteristic of nitrite, by the sun pipe irradiation of simulation some strength, thereby shortens the soaking and water washing time, reduces the broken small cup rate of commodity bird's nest; Utilize simultaneously illumination that certain drying functions is arranged, can omit dry run, greatly reduce human cost, make the washing process of traditional reduction nitrite immersion, drying, infiltrate, be affectedly bashful, the multiple working procedure such as moulding simplifies and is of short duration immersion, illumination and three steps of moulding; Same batch, within the identical working time, originally need operate more than 10 people, as long as people's operation.
Description of drawings
Accompanying drawing 1 is the flow chart of the method for the content of nitrite in the reduction bird's nest of the present invention;
Accompanying drawing 2 is the lamp box structure figure of the method for the content of nitrite in the reduction bird's nest of the present invention.
Label declaration: 1-bird's nest; The 2-xenon lamp; The 3-lamp box.
The specific embodiment
By describing technology contents of the present invention, structural feature in detail, being realized purpose and effect, below in conjunction with embodiment and cooperate accompanying drawing to give in detail explanation.
With reference to accompanying drawing 1, the invention provides a kind of method that reduces the content of nitrite in the bird's nest shown in the accompanying drawing, may further comprise the steps:
Step 2. is taken out bird's nest from water, illumination 4-8 hour; Concrete, after pulling bird's nest out, bird's nest is lain against on the pallet that is covered with the wetting medical white gauze of pure water, bird's nest is carried out illumination, in the present embodiment, with reference to accompanying drawing 2, xenon lamp 2 irradiations are adopted in described illumination, and spectrum and the sunshine of xenon lamp 2 are the most approaching, it also is the optimal case of accelerating nitrite, because bird's nest 1 needs to guarantee to be in moistening state in the photodissociation process, so adopts the lamp box 3 that xenon lamp 2 is housed in the present embodiment, intensity and the distance of control xenon lamp 2, form the space of a sealing, in this space, the process meeting of illumination is so that whole space produces steam, and integral body is in the environment of a humidity.
The effect of photodissociation illustrates by the experiment of following employing Xenon light shining:
A whole set of xenon long-arc lamp (comprising: five of fluorescent tube, ballast, trigger, reflection shield, press buttones etc., wavelength: between the 290nm-800nm totally.500 watts of power of lamp tube.
Raw material: Bai Yan (being 79.6mg/kg on the content of nitrite report)
Equipment (xenon long-arc lamp case GX500W wavelength 290nm-800nm)
Purpose: can check simulated solar irradiation irradiation be applicable to the white swallow of whole small cup
1, gets the white swallow of 3 little small cups
A, to put into water 3 seconds moistening, fishes for rapidly
B, with xenon lamp irradiation, 6 hours (after 3 hours again Rinsing back side illuminaton)
On-the-spot humidity: 52% temperature: 36 ℃ apart from the lamp spacing from 50cm
Measurement result (AAS): 25.3mg/kg, 25.6mg/kg, 16.8mg/kg.
Content≤the 30mg/kg of the result surface nitrous acid of test meets (GB2760-2011) pertinent regulations of China's " food security national standard food additives Application standard ".
Certainly, can adopt in other embodiments Infrared irradiation to realize the bird's nest photodissociation yet, perhaps adopt other light irradiations, perhaps directly place under the sunshine and shine, the present invention does not limit and adopts any illumination to realize the nitrite photodissociation.
Step 3. by the step cycle of step 1-step 2 2-3 time to obtain standard compliant bird's nest.
Concrete following row further specify technical scheme of the present invention for two example two:
Embodiment 1:
1, in the bird's nest service sink of 100 * 60 * 40cm, injects the position of the pure water nearly 2/3 of activated carbon filtration.
2,200g puts into respectively above-mentioned service sink with the more bird's nest of luffa, reverberates with hand and washes 2-3 and plow.Make bird's nest fully moistening, can pull out.
3, lie against on the pallet that is covered with the wetting medical white gauze of pure water after pulling out, put into the lamp box of built-in two xenon lamps of 100 * 60 * 70cm size, with reference to accompanying drawing 2, the distance of bird's nest and light source is no less than 50cm.
4, close lamp box, control intensity of light source 765W/m2, continuous illumination 6 hours.
5, between illumination period, the bird's nest positive and negative turns over 2-3 time and gets final product.
Embodiment 2:
1, in the bird's nest service sink of 100 * 60 * 40cm, injects the position of the pure water nearly 2/3 of activated carbon filtration.
2,200g is less or not with the thick bird's nest of the meat of luffa with luffa, puts into respectively above-mentioned service sink, reverberates with hand and washes 5-6 and plow.Pull out.
3, lie against on the pallet that is covered with the wetting medical white gauze of pure water after pulling out, put into the lamp box of built-in two xenon lamps of 100 * 60 * 70cm size.The distance of bird's nest and light source is no less than 50cm.The distance of bird's nest and light source is no less than 50cm.
4, close lamp box, control intensity of light source 765W/m2, continuous illumination 6 hours.
5, between illumination period, the bird's nest positive and negative turns over 2-3 time and gets final product.
Wherein, the intensity of the distance of control light source and bird's nest and control light source can be the illumination that bird's nest obtains suiting, and the photodissociation rate of nitrite is improved greatly.
Immersion, the drying of the washing process of traditional reduction nitrite, infiltrate, be affectedly bashful, the multiple working procedure such as moulding simplifies and is of short duration immersion, illumination and three steps of moulding; Same batch, within the identical working time, originally need operate more than 10 people, as long as people's operation.
The above only is embodiments of the invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (5)
1. method that reduces the content of nitrite in the bird's nest, its feature with, may further comprise the steps:
Step 1. is immersed in the water 1-3 minute with bird's nest;
Step 2. is taken out bird's nest from water, illumination 4-8 hour;
Step 3. is by the step cycle of step 1-step 2 2-3 time.
2. the method for the content of nitrite in the reduction bird's nest according to claim 1 is characterized in that, described water is the pure water by activated carbon filtration.
3. the method for the content of nitrite in the reduction bird's nest according to claim 1 is characterized in that, the xenon lamp irradiation is adopted in described illumination.
4. the method for the content of nitrite in the reduction bird's nest according to claim 3 is characterized in that, the intensity of light source of xenon lamp is 765W/m
2, the distance of bird's nest and xenon lamp is 50cm.
5. the method for the content of nitrite in the reduction bird's nest according to claim 1 is characterized in that, reverberates when bird's nest soaks in water in the described step 1 to wash 2-6 and plow.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103205540A CN102860444A (en) | 2012-09-03 | 2012-09-03 | Method for reducing content of nitrite in edible bird's nest |
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| CN2012103205540A CN102860444A (en) | 2012-09-03 | 2012-09-03 | Method for reducing content of nitrite in edible bird's nest |
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| CN2012103205540A Pending CN102860444A (en) | 2012-09-03 | 2012-09-03 | Method for reducing content of nitrite in edible bird's nest |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109549202A (en) * | 2018-12-03 | 2019-04-02 | 沈华伟 | A kind of green safe bird's nest of low nitrite content |
| CN109549201A (en) * | 2018-12-03 | 2019-04-02 | 沈华伟 | For reducing the activating solution of bird's nest content of nitrite |
| CN113615828A (en) * | 2021-08-11 | 2021-11-09 | 北京小仙炖生物科技有限公司 | Preparation method of fresh stewed cubilose |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101971990A (en) * | 2010-10-21 | 2011-02-16 | 北京同仁堂健康药业（福州）有限公司 | Method for cleaning and processing bird's nest |
| CN102406099A (en) * | 2011-11-08 | 2012-04-11 | 北京同仁堂健康药业（福州）有限公司 | Method for removing nitrite from bird's nest |
| CN102440341A (en) * | 2011-10-10 | 2012-05-09 | 苏州卫生职业技术学院 | Method for removing nitrite in marine product by soaking treatment |
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2012
- 2012-09-03 CN CN2012103205540A patent/CN102860444A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101971990A (en) * | 2010-10-21 | 2011-02-16 | 北京同仁堂健康药业（福州）有限公司 | Method for cleaning and processing bird's nest |
| CN102440341A (en) * | 2011-10-10 | 2012-05-09 | 苏州卫生职业技术学院 | Method for removing nitrite in marine product by soaking treatment |
| CN102406099A (en) * | 2011-11-08 | 2012-04-11 | 北京同仁堂健康药业（福州）有限公司 | Method for removing nitrite from bird's nest |
Non-Patent Citations (1)
| Title |
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| 李培峰等: "水体中亚硝酸盐的光降解", 《环境化学》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109549202A (en) * | 2018-12-03 | 2019-04-02 | 沈华伟 | A kind of green safe bird's nest of low nitrite content |
| CN109549201A (en) * | 2018-12-03 | 2019-04-02 | 沈华伟 | For reducing the activating solution of bird's nest content of nitrite |
| CN113615828A (en) * | 2021-08-11 | 2021-11-09 | 北京小仙炖生物科技有限公司 | Preparation method of fresh stewed cubilose |
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Application publication date: 20130109 |