CN100486465C - Method for recovering filtration rate of hyperfiltration membrane - Google Patents
Method for recovering filtration rate of hyperfiltration membrane Download PDFInfo
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- CN100486465C CN100486465C CNB2005100420136A CN200510042013A CN100486465C CN 100486465 C CN100486465 C CN 100486465C CN B2005100420136 A CNB2005100420136 A CN B2005100420136A CN 200510042013 A CN200510042013 A CN 200510042013A CN 100486465 C CN100486465 C CN 100486465C
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- cider
- hyperfiltration membrane
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- cleaning
- enzyme
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Abstract
The invention discloses a method for recovering the venting rate of hyperfiltration membrane, and normal process for preparing apple juice comprising the following steps: cleaning, juice squeezing, gelatinizating, enzymolysis, hyperfiltration, concentration, product finishing, packing, and cleaning the hyperfiltration membrane, which is characterized in that adding complex biological enzyme during enzymolysis process, cleaning complex enzyme for an hour before normal chemical clean of everyday, and cleaning with acid in every week, as a result of which the recovery rate for venting rate of hyperfiltration membrane is about 20-30%, and productivity is increased and cost is reduced.
Description
Technical field:
The present invention relates to the fruit juice processing technique field, is a kind of method of recovering filtration rate of hyperfiltration membrane in the cider process specifically.
Background technology:
At present, in the process of cider, owing to contain the organic principle that stops up milipore filter in the fruit juice, thereby in ultrafiltration technology, the part organic principle changes before and after ultrafiltration to some extent, along with the passband of its milipore filter of growth of service time is more and more lower,, carries out a conventional chemical usually every day and clean in order to increase its passband; But after being to use a period of time, because milipore filter stops up seriously, passband is too low, thereby needs to change again, increases cost simultaneously thereby have a strong impact on output.
Summary of the invention:
The objective of the invention is to overcome the deficiency of above-mentioned prior art, and a kind of processing method of recovering the cider of filtration rate of hyperfiltration membrane is provided, mainly solved and stopped up the problem that milipore filter descends its passband in the existing cider process.
In order to achieve the above object, the present invention is achieved in that a kind of processing method of recovering the cider of filtration rate of hyperfiltration membrane, the processing technology of cider comprises: clean, aquatic foods are squeezed the juice, gelatinization, enzymolysis, ultrafiltration, concentrate, finished product, packing, cleaning milipore filter, its special character is to add compound biological enzyme in the described enzymolysis process, and compound biological enzyme is made of by weight percentage following enzyme: pectase 50%, cellulase 30%, zytase+1,4 beta-glucanase 7-9%, acid protease 10%, mannase 1-3%; The compound biological enzyme that adds and the weight ratio of fruit juice are: 7:400000.
A kind of processing method of recovering the cider of filtration rate of hyperfiltration membrane of the present invention, be before the Chemical cleaning milipore filter technology of routine every day, to carry out complex enzyme earlier to clean, complex enzyme is made of by weight percentage following enzyme: pectase 45%, cellulase 35%, zytase+1,4 beta-glucanase 7-9%, acid protease 10%, mannase 1-3%, the weight ratio of complex enzyme and water is: 1-1.5:20000, the complex enzyme scavenging period is 1 hour, then carries out conventional Chemical cleaning.
A kind of processing method of recovering the cider of filtration rate of hyperfiltration membrane of the present invention is cleaned in every day and to be carried out a hypo acid on the milipore filter technology basis weekly and clean, and adopts edible citric acid, and transferring the cleaning fluid pH value is 2, and the wash cycles time is 1-1.5 hour.
Conventional Chemical cleaning is following two kinds of method: a, adopts NaOH to transfer PH=10, circulates and drains in 20 minutes; B adopts NaOH to transfer PH=10, and circulating added NaClO (clorox) circulation 30-40 minute in 10 minutes, and the chlorinity 180-230PPm that remains valid drains then.
Compositions such as the soluble pectin in the cider, insoluble pectin, protein, cellulose, polyphenol technology routinely carry out the forward and backward experiment of ultrafiltration to record its index as follows:
After the preceding ultrafiltration of ultrafiltration
Soluble pectin (ppm) 154 155
Insoluble pectin (ppm) 5.04 does not detect
Protein (ppm) 48.5 20.4
Cellulose (containing the glycan class) (%) 0.018 does not detect
Polyphenol (ppm) 62.7 56.4
Hence one can see that, and the composition of fruit juice is vicissitudinous at content before and after ultrafiltration technology.
Compared with the prior art a kind of processing method of recovering the cider of filtration rate of hyperfiltration membrane of the present invention has outstanding substantive distinguishing features and marked improvement, and 1, in the enzymolysis operation, add compound biological enzyme and can reduce the organic component content that stops up milipore filter in the fruit juice; 2, increased by 1 hour complex enzyme before the Chemical cleaning milipore filter technology of routine every day and clean, this complex enzyme can be taken off the organic component branch that stops up film in the wash cycles process; 3, except that the Chemical cleaning milipore filter of routine, increase by a hypo acid weekly and clean, select the strong citric acid of complexation of metal ions ability for use; 4, owing to the flux that has improved milipore filter, thereby the output that improves has reduced cost.
The processing method of the cider of recovery filtration rate of hyperfiltration membrane of the present invention is cleaned the energy of comparing milipore filter and recovers the percentage experimental data as follows with routine:
Conventional cleaning enzymolysis process is added in the basis of (2)
(1) adds complex enzyme on the compound biological enzyme (2) and clean remarks
Energy (the m of milipore filter
3/ h,
Design with 20 hours 12.5 14.8 15.9 ultrafiltration of a circulation
The average energy meter) ability is 20
m
3/ h; Fruit juice
Energy recover percentage (with pol be
20 hours flat 18.4 27.2 13.5Brix of a circulation
Equal energy meter)
Hence one can see that, and the processing method of the cider of recovery filtration rate of hyperfiltration membrane of the present invention is on average recovered filtration rate of hyperfiltration membrane 20-30%.
The specific embodiment:
In order to understand better and to implement, describe a kind of processing method of recovering the cider of filtration rate of hyperfiltration membrane of the present invention in detail below in conjunction with embodiment.
Embodiment 1, technology is screened, is cleaned routinely, aquatic foods are squeezed the juice, gelatinization, enzymolysis with apple, in enzymatic vessel, add compound biological enzyme, compound biological enzyme is made of by weight percentage following enzyme: pectase 50%, cellulase 30%, zytase+1,4 beta-glucanase 8%, acid protease 10%, mannase 2%, the weight ratio of compound biological enzyme and fruit juice is: 7:400000, the above-mentioned complex enzyme that promptly in 40 tons of jars, adds 0.7Kg, carry out ultrafiltration then, concentrate, finished product, packing, promptly get product.
Embodiment 2, technology is screened, is cleaned routinely, aquatic foods are squeezed the juice, gelatinization, enzymolysis with apple, in enzymatic vessel, add compound biological enzyme, compound biological enzyme is made of by weight percentage following enzyme: pectase 50%, cellulase 30%, zytase+1,4 beta-glucanase 7%, acid protease 10%, mannase 3%, the weight ratio of compound biological enzyme and fruit juice is: 7:400000, the above-mentioned complex enzyme that promptly in 40 tons of jars, adds 0.7Kg, carry out ultrafiltration then, concentrate, finished product, packing, promptly get product.
Embodiment 3, technology is screened, is cleaned routinely, aquatic foods are squeezed the juice, gelatinization, enzymolysis with apple, in enzymatic vessel, add compound biological enzyme, compound biological enzyme is made of by weight percentage following enzyme: pectase 50%, cellulase 30%, zytase+1,4 beta-glucanase 9%, acid protease 10%, mannase 1%, the weight ratio of compound biological enzyme and fruit juice is: 7:400000, the above-mentioned complex enzyme that promptly in 40 tons of jars, adds 0.7Kg, carry out ultrafiltration then, concentrate, finished product, packing, promptly get product.
Embodiment 4, on the basis of embodiment 1, carry out 1 hour complex enzyme every day and clean milipore filter, complex enzyme is made of by weight percentage following enzyme: pectase 45%, cellulase 35%, zytase+1,4 beta-glucanase 8%, acid protease 10%, mannase 2%, and the weight ratio of complex enzyme and water is: 1:20000; Carry out conventional chemical then and clean milipore filter, generally adopt NaOH to transfer PH=10, circulate and drained in 20 minutes.
Embodiment 5, on the basis of embodiment 2, carry out 1 hour complex enzyme every day and clean milipore filter, complex enzyme is made of by weight percentage following enzyme: pectase 45%, cellulase 35%, zytase+1,4 beta-glucanase 7%, acid protease 10%, mannase 3%, and the weight ratio of complex enzyme and water is: 1.5:20000; Carry out conventional chemical then and clean milipore filter, generally adopt NaOH to transfer PH=10, circulating added NaClO (clorox) circulation 30-40 minute in 10 minutes, and the chlorinity 180-230PPm that remains valid drains then.
Embodiment 6, on the basis of embodiment 3, carry out 1 hour complex enzyme every day and clean milipore filter, complex enzyme is made of by weight percentage following enzyme: pectase 45%, cellulase 35%, zytase+1,4 beta-glucanase 9%, acid protease 10%, mannase 1%, and the weight ratio of complex enzyme and water is: 1.25:20000; Carry out conventional chemical then and clean milipore filter, generally adopt NaOH to transfer PH=10, circulate and drained in 20 minutes.
Embodiment 7, on the basis of embodiment 4, carry out a hypo acid weekly and clean milipore filter, adopt edible citric acid, and transferring the cleaning fluid pH value is 2, and the wash cycles time is 1 hour.
Embodiment 8, on the basis of embodiment 5, carry out a hypo acid weekly and clean milipore filter, adopt edible citric acid, and transferring the cleaning fluid pH value is 2, and the wash cycles time is 1.5 hours.
Embodiment 9, on the basis of embodiment 6, carry out a hypo acid weekly and clean milipore filter, adopt edible citric acid, and transferring the cleaning fluid pH value is 2, and the wash cycles time is 1.25 hours.
Claims (6)
1, a kind of processing method of recovering the cider of filtration rate of hyperfiltration membrane, the processing technology of cider comprises: clean, aquatic foods are squeezed the juice, gelatinization, enzymolysis, ultrafiltration, concentrate, finished product, packing, cleaning milipore filter, it is characterized in that adding compound biological enzyme in the described enzymolysis process, compound biological enzyme is made of by weight percentage following enzyme: pectase 50%, cellulase 30%, zytase+1,4 beta-glucanase 7-9%, acid protease 10%, mannase 1-3%.
2,, it is characterized in that the compound biological enzyme that adds and the weight ratio of fruit juice are: 7:400000 by the described a kind of processing method of recovering the cider of filtration rate of hyperfiltration membrane of claim 1.
3, by the described a kind of processing method of recovering the cider of filtration rate of hyperfiltration membrane of claim 1, it is characterized in that carrying out the complex enzyme cleaning earlier before the described cleaning milipore filter technology, complex enzyme is made of by weight percentage following enzyme: pectase 45%, cellulase 35%, zytase+1,4 beta-glucanase 7-9%, acid protease 10%, mannase 1-3%.
4, by the described a kind of processing method of recovering the cider of filtration rate of hyperfiltration membrane of claim 3, it is characterized in that the weight ratio of complex enzyme and water is: 1-1.5:20000.
5, by claim 3 or 4 described a kind of processing methods of recovering the cider of filtration rate of hyperfiltration membrane, it is characterized in that the complex enzyme scavenging period is 1 hour.
6, by claim 1 or 3 described a kind of processing methods of recovering the cider of filtration rate of hyperfiltration membrane, it is characterized in that cleaning milipore filter technology and carry out hypo acid cleaning weekly, adopt edible citric acid, transferring the cleaning fluid pH value is 2, the wash cycles time is 1-1.5 hour.
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| CNB2005100420136A CN100486465C (en) | 2005-01-10 | 2005-01-10 | Method for recovering filtration rate of hyperfiltration membrane |
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| CNB2005100420136A CN100486465C (en) | 2005-01-10 | 2005-01-10 | Method for recovering filtration rate of hyperfiltration membrane |
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| CN1803034A CN1803034A (en) | 2006-07-19 |
| CN100486465C true CN100486465C (en) | 2009-05-13 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102492663B (en) * | 2011-12-01 | 2014-03-26 | 广西大学 | Pure draft beer film cleaning and regenerating enzyme preparation and cleaning method using same |
| CN103387291B (en) * | 2013-07-12 | 2014-09-10 | 河海大学 | Blocking restrain method for constructed wetland |
| CN105056765A (en) * | 2015-08-20 | 2015-11-18 | 太仓市金鹿电镀有限公司 | Cleaning method of organic pollutants on ultrafiltration membrane surface and preparation method of cleaning solution for organic pollutants on ultrafiltration membrane surface |
| CN107261850A (en) * | 2017-06-21 | 2017-10-20 | 太仓市金鹿电镀有限公司 | A kind of milipore filter high-efficient cleaning washing lotion and cleaning method |
| CN109303224A (en) * | 2018-09-28 | 2019-02-05 | 烟台北方安德利果汁股份有限公司 | A kind of processing method that stable apple clear juice color value simultaneously improves ultra-filtration flux simultaneously |
| CN109603562A (en) * | 2018-12-20 | 2019-04-12 | 武汉新华扬生物股份有限公司 | A kind of enzyme preparation and its application method for beer filtration Membrane cleaning |
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Non-Patent Citations (2)
| Title |
|---|
| 6种国产膜在苹果汁加工中的应用比较. 葛毅强等.食品与发酵工业，第30卷第2期. 2004 |
| 6种国产膜在苹果汁加工中的应用比较. 葛毅强等.食品与发酵工业，第30卷第2期. 2004 * |
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