CN109874863A - A kind of ethyl alcohol delays method and the peeling water chestnut of peeling water chestnut brown stain in conjunction with ultraviolet processing - Google Patents
A kind of ethyl alcohol delays method and the peeling water chestnut of peeling water chestnut brown stain in conjunction with ultraviolet processing Download PDFInfo
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- CN109874863A CN109874863A CN201910304442.8A CN201910304442A CN109874863A CN 109874863 A CN109874863 A CN 109874863A CN 201910304442 A CN201910304442 A CN 201910304442A CN 109874863 A CN109874863 A CN 109874863A
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- water chestnut
- ethyl alcohol
- peeling
- brown stain
- ethanol solution
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Abstract
The invention belongs to field of food, are related to a kind of method and peeling water chestnut that ethyl alcohol combines ultraviolet processing to delay peeling water chestnut brown stain.It is placed in 18-30% ethanol solution after immersion 3-10min method includes the following steps: (1) will remove the peel water chestnut, pulls out, dry；(2) it is placed under ultraviolet lamp and irradiates 1-10min；(3) cryopreservation after encapsulating.It is handled compared to traditional antistaling agent, processing method of the invention is at low cost, and easy to operate, feasibility is good, has broad application prospects.
Description
Technical field
The invention belongs to field of food, combine ultraviolet processing to delay to remove the peel water chestnut brown stain more particularly, to a kind of ethyl alcohol
Method and peeling water chestnut obtained by this method.
Background technique
Fresh-cut fruit and vegetable because its is fresh, nutrition, facilitate the features such as, be increasingly becoming postharvest fruit and vegetable research frontier.Water chestnut is
The aquatic vegetable that China's yield is larger, cultivated area is wider, and water chestnut is rich in multiple nutritional components and higher medical value.In recent years
Carry out fresh-cut water chestnut and its product is popular with consumers again, however wound easily occurs in processing and storage and exhales for water chestnut fresh-cut product
Suction, brown stain and microbial contamination etc., wherein being particularly acute with Tissue Browning, substantially reduce the commodity value of water chestnut.Control at present
The method of fresh-cut water chestnut brown stain mainly passes through cryopreservation, and antistaling agent processing and controlled atmospheric packing etc. or various ways, which combine, to be made
With etc. realize.
Ethyl alcohol generally acknowledges natural, safe product as a kind of, not only can be used as fungicide but also can delay tissue aging, so that
Its application in terms of storage fruit and vegetable possesses bright prospects.
Ultraviolet light is as a kind of relative healths, and cost-effective, non-traditional thermal sterilization technology, is not only able to effectively mention
High fruits and vegetables adopt rear disease resistance, slow down the ripening and senscence of fruits and vegetables, its brown stain is delayed to occur, additionally it is possible to effectively killing pathogenic bacteria, into
One step extends fruits and vegetables shelf life.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of simple and easy and effective sides for delaying to remove the peel water chestnut brown stain
Method and thus obtained peeling water chestnut.
Specifically, the present invention provides a kind of method that ethyl alcohol combines ultraviolet processing to delay peeling water chestnut brown stain, this method packet
Include following steps:
(1) peeling water chestnut is placed in 18-30% ethanol solution after impregnating 3-10min, pulls out, dries；
(2) it is placed under ultraviolet lamp and irradiates 1-10min；
(3) cryopreservation after encapsulating.
Further, the concentration of the ethanol solution is 20-25%, and the soaking time in ethanol solution is preferably 4-
8min。
Above-mentioned ethyl alcohol is edible ethanol, can get using the ethanol solution of preferred concentration range and preferably delays to remove the peel water chestnut
The effect of shepherd's purse brown stain.
Further, the wavelength of the ultraviolet lamp is 253.7nm.
Further, the time irradiated under ultraviolet lamp is 3-5min.
Preferred ultraviolet treatment conditions can further improve the effect for delaying brown stain.
In the present invention, the peeling water chestnut can be prepared by the following: fresh water chestnut is gone mud, cleaning, peeling.
Further, the method for the encapsulation includes: that the peeling water chestnut after ultraviolet irradiation is placed in pallet, is sealed up fresh-keeping
Film.
Further, the temperature of the cryopreservation is 2-6 DEG C.
The present invention also provides peeling water chestnuts prepared by the above method.
Handled compared to traditional antistaling agent, ethyl alcohol of the invention combine ultraviolet processing method it is safe, it is easy to operate, at
This is low, effect is good, compared to control (impregnating the slice with ultraviolet processing without ethyl alcohol), delays brown stain effect obvious, therefore this
Invention delays the method for removing the peel water chestnut brown stain to have broad application prospects.
Other features and advantages of the present invention will then part of the detailed description can be specified.
Detailed description of the invention
Exemplary embodiment of the invention is described in more detail in conjunction with the accompanying drawings, it is of the invention above-mentioned and its
Its purpose, feature and advantage will be apparent.
Fig. 1-Figure 11 shows peeling water chestnut and puts the effect picture after 4 DEG C of refrigerator storage 10d after different disposal.Color is got over
It is deep, indicate that brown stain is more serious.Wherein, Fig. 1-Fig. 9 is respectively the peeling water chestnut that embodiment 1-9 is obtained, and Figure 10-Figure 11 is respectively pair
The peeling water chestnut that ratio 1 and comparative example 2 obtain.
Specific embodiment
The preferred embodiment of the present invention is described in more detail below.Although the following describe preferred implementations of the invention
Mode, however, it is to be appreciated that may be realized in various forms the present invention without that should be limited by the embodiments set forth herein.It is real
The person that is not specified actual conditions in example is applied, is all carried out according to conventional conditions or manufacturer's recommended conditions.Agents useful for same or instrument are not
Production firm person is indicated, is the conventional products that can be obtained by commercially available purchase.
Embodiment 1
The present embodiment is used to illustrate that a kind of ethyl alcohol to combine ultraviolet processing to delay the method for removing the peel water chestnut brown stain, including following step
It is rapid:
1. the edible ethanol solution that compound concentration is 25%.
2. fresh water chestnut removes mud, clean, peeling.
3. being placed in 25% edible ethanol solution after impregnating 6min, pulls out, dry.
4. being placed under the ultraviolet lamp of 253.7nm and irradiating 3min.
5. being placed in pallet, preservative film is sealed up, is placed in 4 DEG C of refrigerator storages.
Embodiment 2
The present embodiment is used to illustrate that a kind of ethyl alcohol to combine ultraviolet processing to delay the method for removing the peel water chestnut brown stain, including following step
It is rapid:
1. the edible ethanol solution that compound concentration is 22%.
2. fresh water chestnut removes mud, clean, peeling.
3. being placed in 22% edible ethanol solution after impregnating 4min, pulls out, dry.
4. being placed under 253.7nm ultraviolet lamp and irradiating 4min.
5. being placed in pallet, preservative film is sealed up, is placed in 4 DEG C of refrigerator storages.
Embodiment 3
The present embodiment is used to illustrate that a kind of ethyl alcohol to combine ultraviolet processing to delay the method for removing the peel water chestnut brown stain, including following step
It is rapid:
1. the edible ethanol solution that compound concentration is 20%.
2. fresh water chestnut removes mud, clean, peeling.
3. being placed in 20% edible ethanol solution after impregnating 8min, pulls out, dry.
4. being placed under 253.7nm ultraviolet lamp and irradiating 5min.
5. being placed in pallet, preservative film is sealed up, is placed in 4 DEG C of refrigerator storages.
Embodiment 4
The present embodiment is used to illustrate that a kind of ethyl alcohol to combine ultraviolet processing to delay the method for removing the peel water chestnut brown stain, including following step
It is rapid:
1. the edible ethanol solution that compound concentration is 30%.
2. fresh water chestnut removes mud, clean, peeling.
3. being placed in 30% edible ethanol solution after impregnating 6min, pulls out, dry.
4. being placed under 253.7nm ultraviolet lamp and irradiating 3min.
5. being placed in pallet, preservative film is sealed up, is placed in 4 DEG C of refrigerator storages.
Embodiment 5
The present embodiment is used to illustrate that a kind of ethyl alcohol to combine ultraviolet processing to delay the method for removing the peel water chestnut brown stain, including following step
It is rapid:
1. the edible ethanol solution that compound concentration is 18%.
2. fresh water chestnut removes mud, clean, peeling.
3. being placed in 18% edible ethanol solution after impregnating 6min, pulls out, dry.
4. being placed under 253.7nm ultraviolet lamp and irradiating 3min.
5. being placed in pallet, preservative film is sealed up, is placed in 4 DEG C of refrigerator storages.
Embodiment 6
The present embodiment is used to illustrate that a kind of ethyl alcohol to combine ultraviolet processing to delay the method for removing the peel water chestnut brown stain, including following step
It is rapid:
1. the edible ethanol solution that compound concentration is 25%.
2. fresh water chestnut removes mud, clean, peeling.
3. being placed in 25% edible ethanol solution after impregnating 10min, pulls out, dry.
4. being placed under 253.7nm ultraviolet lamp and irradiating 3min.
5. being placed in pallet, preservative film is sealed up, is placed in 4 DEG C of refrigerator storages.
Embodiment 7
The present embodiment is used to illustrate that a kind of ethyl alcohol to combine ultraviolet processing to delay the method for removing the peel water chestnut brown stain, including following step
It is rapid:
1. the edible ethanol solution that compound concentration is 25%.
2. fresh water chestnut removes mud, clean, peeling.
3. being placed in 25% edible ethanol solution after impregnating 3min, pulls out, dry.
4. being placed under 253.7nm ultraviolet lamp and irradiating 3min.
5. being placed in pallet, preservative film is sealed up, is placed in 4 DEG C of refrigerator storages.
Embodiment 8
The present embodiment is used to illustrate that a kind of ethyl alcohol to combine ultraviolet processing to delay the method for removing the peel water chestnut brown stain, including following step
It is rapid:
1. the edible ethanol solution that compound concentration is 25%.
2. fresh water chestnut removes mud, clean, peeling.
3. being placed in 25% edible ethanol solution after impregnating 6min, pulls out, dry.
4. being placed under the ultraviolet lamp of 253.7nm and irradiating 1min.
5. being placed in pallet, preservative film is sealed up, is placed in 4 DEG C of refrigerator storages.
Embodiment 9
The present embodiment is used to illustrate that a kind of ethyl alcohol to combine ultraviolet processing to delay the method for removing the peel water chestnut brown stain, including following step
It is rapid:
1. the edible ethanol solution that compound concentration is 25%.
2. fresh water chestnut removes mud, clean, peeling.
3. being placed in 25% edible ethanol solution after impregnating 6min, pulls out, dry.
4. being placed under the ultraviolet lamp of 253.7nm and irradiating 10min.
5. being placed in pallet, preservative film is sealed up, is placed in 4 DEG C of refrigerator storages.
Comparative example 1
This comparative example is used to illustrate a kind of method for delaying to remove the peel water chestnut brown stain, comprising the following steps:
1. the edible ethanol solution that compound concentration is 25%.
2. fresh water chestnut removes mud, clean, peeling.
3. being placed in 25% edible ethanol solution after impregnating 6min, pulls out, dry.
4. being placed in pallet, preservative film is sealed up, is placed in 4 DEG C of refrigerator storages.
Test case 1
For embodiment 1-9, comparative example 1 and comparative example 2 (not having to ethyl alcohol to impregnate, without ultraviolet processing) resulting peeling
Water chestnut is tested.As a result as shown in Figure 1-Figure 11.As it can be seen that the peeling water chestnut of embodiment 1-9 is relative to comparative example 1, comparative example 2
Peeling water chestnut, delay brown stain effect clearly.Also, using preferred ethyl alcohol soaking conditions, preferred ultraviolet processing item
Part can further delay brown stain.
It is at low cost by above embodiments and test case as it can be seen that alcohol treatment method safety of the invention, easy to operate, prolong
Slow brown stain effect is good.
Various embodiments of the present invention are described above, above description is exemplary, and non-exclusive, and
It is not limited to disclosed each embodiment.Without departing from the scope and spirit of illustrated each embodiment, for this skill
Many modifications and changes are obvious for the those of ordinary skill in art field.
Claims (7)
1. a kind of ethyl alcohol combines ultraviolet processing to delay the method for removing the peel water chestnut brown stain, which is characterized in that this method includes following step
It is rapid:
(1) peeling water chestnut is placed in 18-30% ethanol solution after impregnating 3-10min, pulls out, dries；
(2) it is placed under ultraviolet lamp and irradiates 1-10min；
(3) cryopreservation after encapsulating.
2. the method according to claim 1, wherein the concentration of the ethanol solution be 20-25%, it is molten in ethyl alcohol
Soaking time in liquid is 4-8min.
3. the method according to claim 1, wherein the wavelength of the ultraviolet lamp is 253.7nm.
4. the method according to claim 1, wherein the time irradiated under ultraviolet lamp is 3-5min.
5. the method according to claim 1, wherein the method for the encapsulation includes: that will go after ultraviolet irradiation
Skin water chestnut is placed in pallet, seals up preservative film.
6. the method according to claim 1, wherein the temperature of the cryopreservation is 2-6 DEG C.
7. removing the peel water chestnut made from the method as described in any one of claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910304442.8A CN109874863A (en) | 2019-04-16 | 2019-04-16 | A kind of ethyl alcohol delays method and the peeling water chestnut of peeling water chestnut brown stain in conjunction with ultraviolet processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910304442.8A CN109874863A (en) | 2019-04-16 | 2019-04-16 | A kind of ethyl alcohol delays method and the peeling water chestnut of peeling water chestnut brown stain in conjunction with ultraviolet processing |
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| CN109874863A true CN109874863A (en) | 2019-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910304442.8A Pending CN109874863A (en) | 2019-04-16 | 2019-04-16 | A kind of ethyl alcohol delays method and the peeling water chestnut of peeling water chestnut brown stain in conjunction with ultraviolet processing |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105685207A (en) * | 2016-02-18 | 2016-06-22 | 中国农业科学院农产品加工研究所 | Preservation method of fresh-cut edible fungi |
-
2019
- 2019-04-16 CN CN201910304442.8A patent/CN109874863A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105685207A (en) * | 2016-02-18 | 2016-06-22 | 中国农业科学院农产品加工研究所 | Preservation method of fresh-cut edible fungi |
Non-Patent Citations (1)
| Title |
|---|
| 刘洪丽: "鲜切莴苣、荸荠抗褐变剂筛选及其机理研究", 《中国优秀硕士学位论文电子期刊》 * |
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