CN1254514A - Antistaling paper for grape - Google Patents
Antistaling paper for grape Download PDFInfo
- Publication number
- CN1254514A CN1254514A CN 98122740 CN98122740A CN1254514A CN 1254514 A CN1254514 A CN 1254514A CN 98122740 CN98122740 CN 98122740 CN 98122740 A CN98122740 A CN 98122740A CN 1254514 A CN1254514 A CN 1254514A
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- paper
- antistaling
- antistaling agent
- bleaching powder
- polyvinyl alcohol
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Abstract
An antistaling paper for grape is prepared from antistaling agent and paper. Said antistaling agent contains polyvinyl alcohol, starch, sodium hydroxide, sodium pyrosulfite and bleaching powder, and is firmly adhered onto surface of paper by the adhesive prepared by aqueogel-starch graft method. A layer of air-permeable film is generated on the surface of antistaling agent for holding water and slow releasing of antistaling agent. Said bleaching powder can release out chlorine gas when it meets water to play disinfecting role. Its advantages are high antistaling effect and longer antistaling period.
Description
The present invention relates to fruit freshness preserving paper, especially grape is fresh-keeping
Grape is nutritious delicious because of it, is the fruit that people like very much.Because the restriction of special geographical environment and weather conditions, the grape place of production is also because of being restricted, its transportation also very the thompson seedless grape that produces of difficulty, particularly Xinjiang be subjected to liking of various places people deeply, the packing after grape berry is gathered, transportation, the storage particular importance that seems.
Grape anticorrisive agent fresh-retaining preserving technical development in recent years is very fast, and preservation method commonly used has following several:
1, the stifling anticorrisive agent of sulfur dioxide: be mainly used in storaging grape in storing is fumigated, kill and cause rotten ash arrhizus bacteria.
2, sec-butylamine is stifling: the grape after will fumigating is sealed in the Polythene Bag to be preserved.
3, S-M and S-P-M fruit antistaling agent.
4, calper calcium peroxide antistaling agent.
5, potassium metabisulfite and calcium stearate and gelatin or starch mixing antistaling agent.In above-mentioned preservation method, fumigating system will repeatedly be fumigated storing interior storaging grape, and there is certain influence each stifling back to eating, simultaneously also more numerous rope because the sulfur oxide smell is bigger.And other several antistaling agents no matter to be tablet or pulvis be encapsulated in the Polythene Bag because the antistaling agent area is little, sterilization is inhomogeneous.
Along with the method for fruit freshness preserving is updated, antistaling agent is made the pasty state brush becomes antistaling paper for grapes on common blank sheet of paper, use comparatively extensive in the grape transportation.But because the bonding of the medicine on the tin foil is not firm, come off after the use Chinese traditional medicine runs into steam, the tin foil that also has directly influences the freshness date of grape because sulfur dioxide release is too fast.The present invention is directed to the existing problem of present grape fresh-keeping,, develop a kind of antistaling paper for grapes through test of many times.
The object of the invention is, a kind of antistaling paper for grapes of developing, it is made up of antistaling agent and paper, antistaling agent is made up of polyvinyl alcohol, starch, NaOH, sodium pyrosulfite, bleaching powder, and this tin foil adopts the starch-grafted method of hydrogel to make binding agent, can securely antistaling agent be bonded on the paper, and at antistaling agent surface formation one deck breathable films, can absorb moisture content, and can keep moisture content, play control antistaling agent decomposition rate and cause slow releasing function.Bleaching powder in this antistaling agent also can be met water decomposition and emit chlorine and play bactericidal action except being avoided sticking mutually during tin foil packing, and sodium pyrosulfite is met steam and decomposed and discharge sulfur dioxide gas and can play fungicidal effect.The fresh-keeping term of validity of this antistaling agent is long simultaneously, can fully improve the freshness date of grape.
A kind of antistaling paper for grapes of the present invention, through a large amount of tests, and through relevant department's detection, deposit grape 1kg for normal temperature 30-38 ℃, have only 2 kernel rots mashed after 10 days, detecting sulfur dioxide residual quantity through health is 0.05g/kg, deposited 75 days for low temperature 2-8 ℃, 1.5kg have only 2 kernel rots mashed in the grape, sulfur dioxide residual quantity is 0.02g/kg, is lower than state health standards.
A kind of antistaling paper for grapes of the present invention, it is made up of antistaling agent and paper, and antistaling agent is made up of polyvinyl alcohol, starch, NaOH, sodium pyrosulfite, bleaching powder; Its each component proportioning is: (is radix with 100ml water) polyvinyl alcohol 1-1.5g, starch 3.5-4.5g, NaOH 0.25-0.35g, sodium pyrosulfite 75-85g, bleaching powder 10-18g; The preparation method of this antistaling agent ℃ constantly stirs stand-by up to being dissolved into gel fully at first polyvinyl alcohol being added water, temperature 95-100, then starch being added water stirs, add NaOH, heating, temperature 95-100 ℃ of saponification increased viscosity (constantly stirring) in 1 hour and forms soap lye, polyvinyl alcohol gel joined in the soap lye to stir again, stopped heating, naturally cool to room temperature, add sodium pyrosulfite again and stir and get final product; With the brushing of prepared preservative solution or be sprayed onto on the paper, dabbed on paper with the gauze bag that speckles with the roller of bleaching powder or bleaching powder is housed again after drying in the air several minutes and get final product.
Embodiment 1 (is radix with 100ml water)
Get polyvinyl alcohol 1g and add water, temperature 95-100 ℃ is constantly stirred stand-by up to being dissolved into gel fully, then starch 3.5g being added water stirs, add NaOH 0.35g, heating, temperature 95-100 ℃ of saponification increased viscosity (constantly stirring) in 1 hour and forms soap lye, again polyvinyl alcohol gel is joined in the soap lye and stir, stop heating, naturally cool to room temperature, add sodium pyrosulfite 85g again and stir and get final product; With the brushing of prepared preservative solution or be sprayed onto on the paper, dabbed on paper with the gauze bag that speckles with the roller of bleaching powder 10g or bleaching powder is housed again after drying in the air several minutes and get final product.
Embodiment 2 (is radix with 100ml water)
Get polyvinyl alcohol 1.5g and add water, temperature 95-100 ℃ is constantly stirred stand-by up to being dissolved into gel fully, then starch 4.5g being added water stirs, add NaOH 0.25g, heating, temperature 95-100 ℃ of saponification increased viscosity (constantly stirring) shape layer soap lye in 1 hour, again polyvinyl alcohol gel is joined in the soap lye and stir, stop heating, naturally cool to room temperature, add sodium pyrosulfite 75g again and stir and get final product; With the brushing of prepared preservative solution or be sprayed onto on the paper, dabbed on paper with the gauze bag that speckles with the roller of bleaching powder 18g or bleaching powder is housed again after drying in the air several minutes and get final product.
Claims (3)
1, a kind of antistaling paper for grapes, it is made up of antistaling agent and paper, it is characterized in that, and antistaling agent is made up of polyvinyl alcohol, starch, NaOH, sodium pyrosulfite, bleaching powder; Its each component proportioning is: (is radix with 100ml water) polyvinyl alcohol 1-1.5g, starch 3.5-4.5g, NaOH 0.25-0.35g, sodium pyrosulfite 75-85g, bleaching powder 10-15g.
2, a kind of antistaling agent for grape according to claim 1, it is characterized in that, the preparation method of this antistaling agent ℃ constantly stirs stand-by up to being dissolved into gel fully at first polyvinyl alcohol being added water, temperature 95-100, then starch being added water stirs well even, add NaOH, heating, temperature 95-100 ℃ of saponification increased viscosity (constantly stirring) in 1 hour and forms soap lye, again polyvinyl alcohol gel is joined in the soap lye and stir, stop heating, naturally cool to room temperature, add sodium pyrosulfite again and stir and get final product.
3, according to claim 1,2 described a kind of antistaling paper for grapes, it is characterized in that, with the brushing of prepared preservative solution or be sprayed onto on the paper, dabbed on paper with the gauze bag that speckles with the roller of bleaching powder or bleaching powder is housed again after drying in the air several minutes and get final product.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN98122740A CN1072442C (en) | 1998-11-21 | 1998-11-21 | Antistaling paper for grape |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN98122740A CN1072442C (en) | 1998-11-21 | 1998-11-21 | Antistaling paper for grape |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1254514A true CN1254514A (en) | 2000-05-31 |
CN1072442C CN1072442C (en) | 2001-10-10 |
Family
ID=5227873
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN98122740A Expired - Fee Related CN1072442C (en) | 1998-11-21 | 1998-11-21 | Antistaling paper for grape |
Country Status (1)
Country | Link |
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CN (1) | CN1072442C (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100575441C (en) * | 2007-01-08 | 2009-12-30 | 北京交通大学 | A kind of coal surface curing agent and preparation method thereof |
CN101215809B (en) * | 2008-01-14 | 2010-06-09 | 浙江省农业科学院 | A kind of combined grape fresh-keeping paper and preparation method thereof |
CN103689070A (en) * | 2013-12-16 | 2014-04-02 | 苏州安特实业有限公司 | Litchi preservative and preparation method thereof |
CN104824136A (en) * | 2015-05-15 | 2015-08-12 | 伍祖林 | Fruit fresh-keeping paper |
CN107826460A (en) * | 2017-11-09 | 2018-03-23 | 常德金德新材料科技股份有限公司 | Fruits and vegetables fresh-keeping paper and preparation method thereof |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1037867C (en) * | 1994-06-10 | 1998-03-25 | 许玲 | Grape preservative paper |
CN1061515C (en) * | 1996-12-14 | 2001-02-07 | 中国科学院新疆生物土壤沙漠研究所 | HIgh-effective proservative paper for grapes |
-
1998
- 1998-11-21 CN CN98122740A patent/CN1072442C/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100575441C (en) * | 2007-01-08 | 2009-12-30 | 北京交通大学 | A kind of coal surface curing agent and preparation method thereof |
CN101215809B (en) * | 2008-01-14 | 2010-06-09 | 浙江省农业科学院 | A kind of combined grape fresh-keeping paper and preparation method thereof |
CN103689070A (en) * | 2013-12-16 | 2014-04-02 | 苏州安特实业有限公司 | Litchi preservative and preparation method thereof |
CN103689070B (en) * | 2013-12-16 | 2015-11-04 | 苏州安特实业有限公司 | Antistaling agent for litchi and preparation method thereof |
CN104824136A (en) * | 2015-05-15 | 2015-08-12 | 伍祖林 | Fruit fresh-keeping paper |
CN107826460A (en) * | 2017-11-09 | 2018-03-23 | 常德金德新材料科技股份有限公司 | Fruits and vegetables fresh-keeping paper and preparation method thereof |
Also Published As
Publication number | Publication date |
---|---|
CN1072442C (en) | 2001-10-10 |
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