CN102144662A - Storage and fresh-keeping method for fresh water caltrop - Google Patents
Storage and fresh-keeping method for fresh water caltrop Download PDFInfo
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- CN102144662A CN102144662A CN 201110060024 CN201110060024A CN102144662A CN 102144662 A CN102144662 A CN 102144662A CN 201110060024 CN201110060024 CN 201110060024 CN 201110060024 A CN201110060024 A CN 201110060024A CN 102144662 A CN102144662 A CN 102144662A
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Abstract
The invention discloses a storage and fresh-keeping method for a fresh water caltrop, which mainly comprises steps of cleansing, sorting, color conservation, disinfection by ozone, fumigation, film coating, boxing up and low temperature storage, and the like. In the method, the unwounded ripe water caltrop is disinfected twice at normal temperature, and the shell surface of the ripe water caltrop is packaged with a protective film for isolating the air, so that the water caltrop is in the dormant state in sanitary environment, the preservation period of the fresh water caltrop can be more than 3 months; moreover, the color conservation step, the disinfection step and the film coating step are only performed on the shell of the water caltrop, so that the kernel of the water caltrop can keep special flavor of the fresh water caltrop under the protection of the water caltrop shell, and the water caltrop stored for 3 months is also suitable for being cooked as vegetables and boiled for eating; so the method is a good method for prolonging the storage period of the shelled water caltrop.
Description
Technical field
The present invention relates to a kind of method that the freshness date of fresh water caltrop can be extended to more than 3 months, belong to extraordinary preserving fruit and vegetable utilizing field.
Background technology
Water caltrop is as a kind of important aquatic industrial crops, and netting intensive area in lake, China south all has large-area plantation." ten thousand mu of water chestnut fields " large-scale planting is released in some place, adopts planting technology water caltrops such as hot house, greenhouse, its market supply time by in the past 8-10 month extend to 6-11 month, water caltrop output also significantly increases.But because the water caltrop deep process technology is immature, in the production busy season, a large amount of water caltrops are because of unsalable and rotten, and only a small amount of old water chestnut is adopted water to hide the method preservation or is processed into freezing water chestnut benevolence, and the water caltrop of water Tibetan method preservation must be old water caltrop, mainly as kind of a water chestnut preservation; In a single day the water chestnut benevolence of freeze preservation take out freezer, water chestnut rice with regard to oxidized generation brown stain because brown stain easily takes place, mildew, problem such as dehydration, water chestnut benevolence are softening, its freshness date generally is no more than a week.Still the effective preservation method that does not have at present bright water chestnut." removing shell water caltrop normal temperature fresh-keeping method " fresh-keeping water caltrop of scheme of ZL03124782.2 patent disclosure, after 80-90 ℃ sterilization processing of process, partial starch is gelatinization, in the later stage storage, water chestnut rice can the phenomenon that ossifys occur because of age of starch, make water chestnut rice lose the peculiar taste of bright water chestnut, also because of remove water chestnut rice endocarp with alkali lye, be prone to water chestnut rice metachromatism simultaneously; Because of adopting sterilization conditions vacuum-packed and 80-90 ℃ to carry out sterilization processing, sterilization is also insufficient again, and generation is expanded the bag phenomenon and caused cost to increase easily.
Summary of the invention
The objective of the invention is in order to solve water caltrop particularly with the too short problem of shell water caltrop storage time, providing a kind of can will be with the freshness date of the fresh water caltrop of shell to extend to more than 3 months the natural flavour mountaineous almost constant bright water chestnut method for storing and refreshing of water caltrop.
Bright water chestnut method for storing and refreshing of the present invention, mainly by clean sorting, protect look, ozonization, fumigation, film, steps such as vanning and cryopreservation form, and are specific as follows:
1) clean sorting: water caltrop cleans earlier after plucking, and cleaning process should adopt surfing type to clean the algae of flush away water caltrop surface attachment and mashed leaf; Use the clear water flotation again, remove the floating tender water caltrop of the water surface, and sorted out and hindered and rotten water caltrop, the ripe water caltrop draining of getting heavy water is standby;
2) protect look: place the colour protecting liquid under the normal temperature to soak 30～60min on the ripe water caltrop behind the draining, pull out and drain;
3) ozonization: it is that the Ozone Water of 2.5mg/L is soaked 10～20min that the water caltrop after colour protecting liquid soaks is put into initial concentration under the normal temperature, pulls out to drain;
4) fumigation: re-use 1-methyl cyclopropene (1-MCP) and under 2 ℃ condition water caltrop was fumigated 12 hours, the use amount of 1-methyl cyclopropene is 1g/16m
3The space;
5) film: soak 1min in the water caltrop plastics at normal temperatures after stifling, take out the back and under 2 ℃ of conditions, blow to dry tack free with cold wind; Make water caltrop on surface of shell, wrap up the diaphragm of one deck and air insulated;
6) vanning: the water caltrop after filming is loaded in the corrugated case, and every case should not surpass 10Kg, and the corrugated case side answers perforate ventilative;
7) cryopreservation: it is that 1 ± 1 ℃, humidity are 93% freezer fresh-retaining preserving that the water caltrop after the vanning places temperature, and carton should be not less than 5cm at interval, should prevent in the storage that temperature fluctuation from changing, and prevents the water caltrop surface sweating.
The above colour protecting liquid selects for use sodium pyrosulfite, citric acid, Sodium Benzoate and water formulated, and its optimum quantum of utilization is: put into sodium pyrosulfite 4～5g, citric acid 3～4g in the clear water of every 10kg, Sodium Benzoate 7～8g stirs at normal temperatures.
The above plastics selects for use sodium alginate, natamycin, potassium sorbate and water formulated, and its optimum quantum of utilization is: put into sodium alginate 20～30g, natamycin 1～2g in the clear water of every 10kg, potassium sorbate 3～5g stirs at normal temperatures.
Bright water chestnut method for storing and refreshing of the present invention, because intact ripe water caltrop is carried out after twice sterilization diaphragm in surface of shell parcel one deck and air insulated at normal temperatures again, make water caltrop in hygienic conditions, be in resting state, so the freshness date that can make bright water chestnut was above 3 months, detect after 3 months in storage through bright water chestnut test, the result is: weight-loss ratio is about 4.2%, mainly is the epidermis dehydration; Water chestnut benevolence hardness descends and is about 1%, and structure does not have significant change, analyze by the whiteness instrument, and whiteness decline average out to 1.3%, content of reducing sugar, content of starch decline all are no more than 0.7% in the water chestnut benevolence; Bright water chestnut epidermis does not have obvious brown stain.Only touch because of protecting look, sterilize and filming again, make water chestnut benevolence under the protection of water chestnut shell, keep original local flavor of bright water chestnut with the water chestnut shell joint, preserve still be suitable for after 3 months cooking water chestnut and boil the back prepared food.It is the good method that band shell water caltrop prolongs storage time.
The concrete real mode of revolving
1) clean sorting: water caltrop cleans earlier after plucking, and cleaning process should adopt surfing type to clean, and does not use hard thing and stirs, and prevents to damage the water caltrop epidermis, the algae of flush away water caltrop surface attachment and mashed leaf; Use the clear water flotation again, remove the floating tender water caltrop of the water surface, and sorted out and hindered and rotten water caltrop, the ripe water caltrop draining of getting heavy water is standby;
2) protect look: place the colour protecting liquid under the normal temperature to soak 30～60min on the ripe water caltrop behind the draining, surpass 60min, preferably soak to pull out behind the 45min and drain;
3) ozonization: it is that the Ozone Water of 2.5mg/L is soaked 10～20min that the water caltrop after colour protecting liquid soaks is put into initial concentration under the normal temperature, pulls out to drain; Through ozonization, can kill the rotten microorganism of causing of surface attachment.
4) fumigation: re-use 1-methyl cyclopropene (1-MCP) and under 2 ℃ condition water caltrop was fumigated 12 hours, the use amount of 1-methyl cyclopropene is 1g/16m
3The space; Stifling by this fumigant, can carry out cancellation to the ethene in the bright water chestnut, suppress after-ripening and the respiration of bright water chestnut;
5) film: soak 1min in the water caltrop plastics at normal temperatures after stifling, take out the back and under 2 ℃ of conditions, blow to dry tack free, make water caltrop on surface of shell, wrap up the diaphragm of one deck and air insulated with cold wind;
6) vanning: the water caltrop after filming is loaded in the corrugated case, and every case should not surpass 10Kg, and the corrugated case side answers perforate ventilative;
7) cryopreservation: it is that 1 ± 1 ℃, humidity are 93% freezer fresh-retaining preserving that the water caltrop after the vanning places temperature, and carton should be not less than 5cm at interval, should prevent in the storage that temperature fluctuation from changing, and prevents the water caltrop surface sweating.During sale, the water caltrop that transports fresh-keeping warehouse can not be put back to the storage of cold storing and fresh-keeping storehouse again.
Above-mentioned colour protecting liquid selects for use sodium pyrosulfite, citric acid, Sodium Benzoate and water formulated at normal temperatures, and its optimum quantum of utilization is:
Put into sodium pyrosulfite 4g, citric acid 3g in the clear water of every 10kg, Sodium Benzoate 7g stirs;
Or put into sodium pyrosulfite 4g, citric acid 3.5g, Sodium Benzoate 7.5g in the clear water of every 10kg;
Or put into sodium pyrosulfite 4g, citric acid 4g, Sodium Benzoate 8g in the clear water of every 10kg;
Or put into sodium pyrosulfite 4.5g, citric acid 3g, Sodium Benzoate 8g in the clear water of every 10kg;
Or put into sodium pyrosulfite 4.5g, citric acid 4g, Sodium Benzoate 7g in the clear water of every 10kg;
Or put into sodium pyrosulfite 5g, citric acid 3g, Sodium Benzoate 7g in the clear water of every 10kg;
Or put into sodium pyrosulfite 5g, citric acid 4g, Sodium Benzoate 8g in the clear water of every 10kg;
In sum, put into the ratio allotment of sodium pyrosulfite 4～5g, citric acid 3～4g, Sodium Benzoate 7～8g in the clear water in every 10kg, stir at normal temperatures and all can.
Above-mentioned plastics selects for use sodium alginate, natamycin, potassium sorbate and water formulated, and its optimum quantum of utilization is:
Put into sodium alginate 20g, natamycin 1g, potassium sorbate 3g in the clear water of every 10kg;
Or put into sodium alginate 20g, natamycin 1.5g, potassium sorbate 4g in the clear water of every 10kg;
Or put into sodium alginate 20g, natamycin 2g, potassium sorbate 5g in the clear water of every 10kg;
Or put into sodium alginate 25g, natamycin 1g, potassium sorbate 3g in the clear water of every 10kg;
Or put into sodium alginate 25g, natamycin 2g, potassium sorbate 5g in the clear water of every 10kg;
Or put into sodium alginate 25g, natamycin 2g, potassium sorbate 3g in the clear water of every 10kg;
Or put into sodium alginate 30g, natamycin 1g, potassium sorbate 3g in the clear water of every 10kg;
Or put into sodium alginate 30g, natamycin 2g, potassium sorbate 5g in the clear water of every 10kg;
In sum, put into the ratio allotment of sodium alginate 20～30g, natamycin 1～2g, potassium sorbate 3～5g in the clear water in every 10kg, stir at normal temperatures.Select sodium alginate, natamycin and potassium sorbate for use, the three is acted synergistically and going mouldy and bacterial spoilage of suppressing effectively that the fresh-retaining preserving later stage occurs.
Claims (3)
1. bright water chestnut method for storing and refreshing is characterized in that may further comprise the steps:
1) clean sorting: water caltrop cleans earlier after plucking, and cleaning process should adopt surfing type to clean the algae of flush away water caltrop surface attachment and mashed leaf; Use the clear water flotation again, remove the floating tender water caltrop of the water surface, and sorted out and hindered and rotten water caltrop, the ripe water caltrop draining of getting heavy water is standby;
2) protect look: place colour protecting liquid to soak 30～60min on the ripe water caltrop behind the draining, pull out and drain;
3) ozonization: it is that the Ozone Water of 2.5mg/L is soaked 10～20min that the water caltrop after colour protecting liquid soaks is put into initial concentration, pulls out to drain;
4) fumigation: re-use 1-methyl cyclopropene (1-MCP) and under 2 ℃ condition water caltrop was fumigated 12 hours, the use amount of 1-methyl cyclopropene is 1g/16m
3The space;
5) film: the water caltrop after stifling soaks 1min in plastics, takes out the back and blows to dry tack free with cold wind under 2 ℃ of conditions; Make water caltrop on surface of shell, wrap up the diaphragm of one deck and air insulated;
6) vanning: the water caltrop after filming is loaded in the corrugated case, and every case should not surpass 10Kg, and the corrugated case side answers perforate ventilative;
7) cryopreservation: it is that 1 ± 1 ℃, humidity are that 93% freezer is preserved that the water caltrop after the vanning places temperature, and carton should be not less than 5cm at interval, and strictness prevents that temperature fluctuation from changing, and prevents the water caltrop surface sweating in the storage.
2. bright water chestnut method for storing and refreshing as claimed in claim 1, it is characterized in that described colour protecting liquid selects for use sodium pyrosulfite, citric acid, Sodium Benzoate and water formulated, its optimum quantum of utilization is: put into sodium pyrosulfite 4～5g, citric acid 3～4g in the clear water of every 10kg, Sodium Benzoate 7～8g stirs at normal temperatures.
3. bright water chestnut method for storing and refreshing as claimed in claim 1 or 2, it is characterized in that described plastics selects for use sodium alginate, natamycin, potassium sorbate and water formulated, its optimum quantum of utilization is: put into sodium alginate 20～30g, natamycin 1～2g in every 10kg clear water, potassium sorbate 3～5g stirs at normal temperatures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110060024 CN102144662B (en) | 2011-03-14 | 2011-03-14 | Storage and fresh-keeping method for fresh water caltrop |
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| CN 201110060024 CN102144662B (en) | 2011-03-14 | 2011-03-14 | Storage and fresh-keeping method for fresh water caltrop |
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| CN102144662B CN102144662B (en) | 2013-01-02 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102302052A (en) * | 2011-09-23 | 2012-01-04 | 上海炬钢机械制造有限公司 | Ozone/vacuum precooling compound controlled atmosphere fresh-keeping method for meat products and fruit and vegetables |
| CN102302049A (en) * | 2011-08-11 | 2012-01-04 | 大连铭德生态农业专业合作社 | Method for compositely air-conditioning and preserving large cherries |
| CN103081985A (en) * | 2011-11-04 | 2013-05-08 | 张木林 | Low temperature running water fresh keeping method for fresh lotus seedpod, lotus root, water caltrop and water chestnut |
| CN103704332A (en) * | 2014-01-10 | 2014-04-09 | 四川大学 | Preservation method for fresh fruits |
| CN104170945A (en) * | 2013-07-24 | 2014-12-03 | 四川农业大学 | Composite preservation technology for Hongyang kiwi fruits and implementation method thereof |
| CN104522153A (en) * | 2014-12-23 | 2015-04-22 | 姜芬 | Water chestnut cooling and refreshing method |
| CN105918764A (en) * | 2016-06-01 | 2016-09-07 | 广东东阳光药业有限公司 | Method for storing cordyceps sinensis host larvae plateau feed |
| CN106165720A (en) * | 2016-07-01 | 2016-11-30 | 江苏省农业科学院 | 1 MCP combines the compounding preservation method of lacquer tree fat |
| CN108713587A (en) * | 2018-05-11 | 2018-10-30 | 广西大学 | The preparation process of compound edible preservative film is established on fresh-cut Qarnet Chinese yam surface |
| CN110583970A (en) * | 2019-10-09 | 2019-12-20 | 浙江省嘉兴市农业科学研究院（所） | Preservation method of Trapa acornis nakai |
Citations (2)
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| CN1589653A (en) * | 2003-08-29 | 2005-03-09 | 朱天保 | Shelled water chestnut normal temperature fresh keeping method |
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2011
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Patent Citations (2)
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| CN1589653A (en) * | 2003-08-29 | 2005-03-09 | 朱天保 | Shelled water chestnut normal temperature fresh keeping method |
| CN1757288A (en) * | 2005-09-19 | 2006-04-12 | 唐明霞 | Preservation liquid for root type aquatic vegetable and its prodn. method |
Non-Patent Citations (1)
| Title |
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| 《食品科学》 20061231 李妍 贮藏温度对菱角采后品质和生理的影响 第235-239页 1-3 第27卷, 第1期 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102302049A (en) * | 2011-08-11 | 2012-01-04 | 大连铭德生态农业专业合作社 | Method for compositely air-conditioning and preserving large cherries |
| CN102302052A (en) * | 2011-09-23 | 2012-01-04 | 上海炬钢机械制造有限公司 | Ozone/vacuum precooling compound controlled atmosphere fresh-keeping method for meat products and fruit and vegetables |
| CN103081985A (en) * | 2011-11-04 | 2013-05-08 | 张木林 | Low temperature running water fresh keeping method for fresh lotus seedpod, lotus root, water caltrop and water chestnut |
| CN104170945A (en) * | 2013-07-24 | 2014-12-03 | 四川农业大学 | Composite preservation technology for Hongyang kiwi fruits and implementation method thereof |
| CN103704332A (en) * | 2014-01-10 | 2014-04-09 | 四川大学 | Preservation method for fresh fruits |
| CN103704332B (en) * | 2014-01-10 | 2015-01-14 | 四川大学 | Preservation method for fresh fruits |
| CN104522153A (en) * | 2014-12-23 | 2015-04-22 | 姜芬 | Water chestnut cooling and refreshing method |
| CN105918764A (en) * | 2016-06-01 | 2016-09-07 | 广东东阳光药业有限公司 | Method for storing cordyceps sinensis host larvae plateau feed |
| CN105918764B (en) * | 2016-06-01 | 2017-06-16 | 广东东阳光药业有限公司 | A kind of storage method of host of Cordyceps sinensis larva plateau feed |
| CN106165720A (en) * | 2016-07-01 | 2016-11-30 | 江苏省农业科学院 | 1 MCP combines the compounding preservation method of lacquer tree fat |
| CN108713587A (en) * | 2018-05-11 | 2018-10-30 | 广西大学 | The preparation process of compound edible preservative film is established on fresh-cut Qarnet Chinese yam surface |
| CN108713587B (en) * | 2018-05-11 | 2021-07-09 | 广西大学 | Preparation process for establishing composite edible preservative film on surface of fresh-cut purple Chinese yam |
| CN110583970A (en) * | 2019-10-09 | 2019-12-20 | 浙江省嘉兴市农业科学研究院（所） | Preservation method of Trapa acornis nakai |
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| CN102144662B (en) | 2013-01-02 |
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Granted publication date: 20130102 Termination date: 20130314 |