CN105211262A - The preparation technology of mountain, a kind of Huaihe River leaf dehydrated vegetables - Google Patents
The preparation technology of mountain, a kind of Huaihe River leaf dehydrated vegetables Download PDFInfo
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- CN105211262A CN105211262A CN201510514017.3A CN201510514017A CN105211262A CN 105211262 A CN105211262 A CN 105211262A CN 201510514017 A CN201510514017 A CN 201510514017A CN 105211262 A CN105211262 A CN 105211262A
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Abstract
The present invention relates to the preparation technology of mountain, a kind of Huaihe River leaf dehydrated vegetables, its step for mountain, Huaihe River leaf is carried out cleaning and sterilizing successively, drain, cutting and drying; Described drying adopts the mode of stage drying to carry out, and the baking temperature controlling first stage is 85 ~ 100 DEG C, and being dried to water content is 16 ~ 20%, and the baking temperature of second stage is 50 ~ 60 DEG C, and being dried to water content is 5 ~ 8%.The method first stage of the present invention at high temperature removes most of moisture rapidly; second stage removes residual moisture at a lower temperature, can shorten drying time, improves drying efficiency; low temperature drying also can protect the active nutritional material in vegetables to greatest extent, improves the reconstitution rate of product.
Description
Technical field
The present invention relates to food drying technical field, the dewatering process being specifically related to mountain, a kind of Huaihe River leaf dehydrated vegetables and the dehydrated vegetables using this technique to prepare.
Background technology
Huai Shan, has another name called Chinese yam, sweet potato, is Dioscoreaceae plant tuber, containing saponin(e, mucilaginous substance, choline, starch, glycoprotein, free amino acid etc., and the effect such as there is invigorating the spleen, tonifying lung, reinforce the kidney.Huai Shan both can be used as food, also can be used as medicine, and was the natural function food integrating nutrition and health care and dietotherapy.Extensively planting in China, is a kind of crop of high financial profit.Huai Shan is its leafiness within growth period, and its tender shoots tender leaf can be used as vegetables and eats.Wei Weitai, Wei Benhui etc. have carried out evaluation of nutrition and edibility analysis to the tender leaf of the Guihuai No.2 that is produced from Guangxi, and think and can be used as mountain, Huaihe River leaf rich in nutrition content a kind of quality vegetables and develop and utilize.Because mountain, Huaihe River price is high, fairly large concentrated plantation is at China Huai Shanchanqu, in this context, mountain, a large amount of Huaihe River leaf amount usable is large, place of production marketing fresh cannot make full use of mountain, Huaihe River leaf resource, and in the leaf of mountain, Huaihe River, moisture is higher, is not suitable for long-distance transport and sells, therefore must deep processing in addition, to widen the sales range of mountain, Huaihe River leaf.Mountain, Huaihe River leaf is processed into dehydrated vegetable, effectively can solves the bottleneck problem of mountain, the Huaihe River leaf utilization of resources, realize appreciating and enlarging of Huaihe River mountain products industry.
Summary of the invention
(1) technical problem that will solve
Only eat raw mountain, Huaihe River blade in prior art, cannot carry out long-term storage and transport, edible inconvenient defect, the invention provides the preparation technology of mountain, a kind of Huaihe River leaf dehydrated vegetables.
(2) technical scheme
The preparation method of mountain, Huaihe River of the present invention leaf dehydrated vegetables comprises the steps: mountain, Huaihe River leaf to carry out successively to clean, drain, cutting and drying;
Described drying adopts the mode of stage drying to carry out, and the baking temperature controlling first stage is 85 ~ 100 DEG C, and being dried to water content is 16 ~ 20%, and the baking temperature of second stage is 50 ~ 60 DEG C, and being dried to water content is 5 ~ 8%.Early stage, mountain, Huaihe River leaf water content was high, suitable raising baking temperature is conducive to a large amount of large moisture of fast eliminating, and be mainly used in water evaporates due to heat, the temperature of mountain, Huaihe River leaf is lower, can not Yin Gaowen and the nutriment that destroys wherein, the phase after the drying, in the leaf of mountain, Huaihe River, water content declines, make to dewater to safety moisture content in the leaf of mountain, Huaihe River by low temperature, be conducive to the qualities such as the active component in the leaf of guarantee mountain, Huaihe River, color and luster and rehydration.
In the present invention, the concrete operations of described cleaning and sterilizing are: first use the running water through ultraviolet or ozonization to wash mountain, Huaihe River leaf, then mountain, the Huaihe River leaf after washing is soaked 20 ~ 30min and carries out surface sterilization in ozone pond.China " pollution-free food dehydrated vegetables " (NYT1045-2014) requirement, total plate count Wei≤100000CFU in dehydrated vegetables, in the present invention, due to the nutriment non-refractory in the blade of mountain, Huaihe River, thus blanching treatment is not carried out to mountain, Huaihe River leaf, for ensureing total plate count Wei≤100000CFU in drying product, bacteria reducing process is carried out by washings such as ozone, can effectively clean and sterilize, ensure product total plate count Wei≤100000CFU, and ozone can also play and reduces the residual effect of agriculture.
In the present invention, in described ozone pond, the concentration of ozone is 60 ~ 90mg/L.Ozone has the effect of surface disinfection, and the concentration controlling ozone is 60 ~ 90mg/L, both can reach the object of sterilization, also can not produce destruction to mountain, Huaihe River blade.
In the present invention, mountain, the Huaihe River base of leaf of mountain, described Huaihe River leaf to be growth period the be 5 ~ 15cm of 1 ~ 2 week.The growth period of mountain, Huaihe River blade is different, the content of its each nutritional labeling is also incomplete same, and growth period is 1 ~ 2 week, and its protein content is higher, and this blade can not be unfavorable for because of too tender the processing carrying out the later stage, the mouthfeel of final products also can not be caused not good because leaf age is oversize.
In the present invention, mountain, described Huaihe River leaf is in the process of plucking, and harvesting amount is 10 ~ 20% of the total blade amount of mountain, Huaihe River plant, and plucking cycle is 2 ~ 3 weeks.Huai Shan is tuberous plant, if picking blade is excessive, likely can plays adverse influence to the growth of its stem tuber, select this harvesting amount and plucking cycle, can not affect the normal growth of stem tuber, also can realize making full use of of mountain, Huaihe River blade.
In the present invention, described in drain adopt vibrations ribbon conveyer, vibrations drain 2 ~ 3min.Mountain, Huaihe River blade is comparatively fresh and tender relative to other vegetables, adopts ribbon conveyer to drain, both effectively can remove the moisture of blade surface, also can not bring destruction to the structure of mountain, Huaihe River blade.
In the present invention, mountain, Huaihe River stem apex is cut into the stem section of 1 ~ 3cm.
Method of the present invention, preferably includes following steps:
1) the growth selection phase is mountain, the Huaihe River base of leaf of the length 5 ~ 15cm of 1 ~ 2 week;
2) with the running water through disinfection by ultraviolet light, mountain, Huaihe River leaf is washed, then by mountain, the Huaihe River leaf after washing at ozone concentration be 60 ~ 90mg/L ozone pond in soak 20 ~ 30min and carry out surface sterilization, mountain, the Huaihe River leaf after being sterilized;
3) send mountain, the Huaihe River leaf after described disinfecting to vibrations ribbon conveyer, obtain mountain, the Huaihe River leaf draining surface moisture;
4) described mountain, the Huaihe River leaf drained away the water is cut into the stem section of 1 ~ 3cm;
5) the stem section after described cutting is carried out two-part drying, the temperature controlling the first stage is 85 ~ 100 DEG C, and being dried to water content is 16 ~ 20%; The temperature of second stage is 50 ~ 60 DEG C, and being dried to water content is 5 ~ 8%, obtains mountain, Huaihe River leaf dehydrated vegetables
Another object of the present invention is mountain, Huaihe River leaf dehydrated vegetables prepared by Sustainable use method of the present invention.
(3) beneficial effect
Drying means of the present invention has following beneficial effect:
1, high, nutritious, the edible safety of mountain, Huaihe River leaf-making quantity, is plucked by appropriateness, makes dehydrated vegetables, realize the higher value application of mountain, Huaihe River leaf, improves the economic benefit of Huai Shan plantation.
2, adopt ozone to substitute blanching to carry out bacteria reducing and fall the residual process of agriculture, final dewatering vegetables total plate count does not exceed standard, and improves Product Safety, has also carried out protection to a certain degree to the active component in the leaf of mountain, Huaihe River.
3, the technique of stage drying is adopted; first stage at high temperature removes most of moisture rapidly; second stage removes residual moisture at a lower temperature; drying time can be shortened; improve drying efficiency; low temperature drying also can protect the active nutritional material in vegetables to greatest extent, improves the reconstitution rate of product.
Detailed description of the invention
Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
Embodiment 1
The present embodiment relates to a kind of method preparing mountain, Huaihe River leaf dehydrated vegetables, comprises the steps:
1) the growth selection phase is 1 ~ 2 week, and length is mountain, the Huaihe River leaf of 5 ~ 15cm;
2) with the running water through disinfection by ultraviolet light, mountain, Huaihe River leaf is washed, then by mountain, the Huaihe River leaf after washing at ozone concentration be 60mg/L ozone pond in soak 30min and carry out surface sterilization, mountain, the Huaihe River leaf after being sterilized;
3) send mountain, the Huaihe River leaf after described disinfecting to vibrations ribbon conveyer, vibrations drain 3 minutes, obtain mountain, the Huaihe River leaf draining surface moisture;
4) described mountain, the Huaihe River leaf drained away the water is cut into the stem section of 1 ~ 3cm;
5) send in two-period form band drier by the stem section after described cutting, the temperature controlled in drying machine first paragraph is 85 DEG C, and dry 1 ~ 2h, is about 18% to water content; Enter the second dryer section, the temperature of the second dryer section is 50 DEG C, and dry 3 ~ 4h, is dried to water content lower than 8%, obtains mountain, Huaihe River leaf dehydrated vegetables.
Embodiment 2
1) the growth selection phase is 1 ~ 2 week, and length is mountain, the Huaihe River leaf of 5 ~ 15cm;
2) with the running water through disinfection by ultraviolet light, mountain, Huaihe River leaf is washed, then by mountain, the Huaihe River leaf after washing at ozone concentration be 90mg/L ozone pond in soak 20min and carry out surface sterilization, mountain, the Huaihe River leaf after being sterilized;
3) send mountain, the Huaihe River leaf after described disinfecting to vibrations ribbon conveyer, vibrations drain 2 minutes, obtain mountain, the Huaihe River leaf draining surface moisture;
4) described mountain, the Huaihe River leaf drained away the water is cut into the stem section of 1 ~ 3cm;
5) send in band drier by the stem section after described cutting, the temperature controlling drying machine first dryer section is 100 DEG C, and dry 1 ~ 2h, is dried to water content and is about 16%; Send into the second dryer section, the temperature of the second dryer section is 60 DEG C, and dry 3 ~ 4h, is dried to water content not higher than 8%, obtains mountain, Huaihe River leaf dehydrated vegetables.
Embodiment 3
1) the growth selection phase is 1 ~ 2 week, and length is mountain, the Huaihe River base of leaf of 5 ~ 15cm;
2) with the running water through disinfection by ultraviolet light, mountain, Huaihe River leaf is washed, then by mountain, the Huaihe River leaf after washing at ozone concentration be 70mg/L ozone pond in soak 25min and carry out surface sterilization, mountain, the Huaihe River leaf after being sterilized;
3) send mountain, the Huaihe River leaf after described disinfecting to vibrations ribbon conveyer, vibrations drain 2 minutes, obtain mountain, the Huaihe River leaf draining surface moisture;
4) described mountain, the Huaihe River leaf drained away the water is cut into the stem section of 1 ~ 3cm;
5) send in band drier by the stem section after described cutting, the temperature controlling drying machine first dryer section is 90 DEG C, and dry 1 ~ 2h, is dried to water content and is about 20%; Send into the second dryer section, the temperature of the second dryer section is 55 DEG C, and dry 3 ~ 4h, is dried to water content not higher than 8%, obtains mountain, Huaihe River leaf dehydrated vegetables.
Comparative example 1
Compare with embodiment 1, its difference is, employing leaf age is mountain, the Huaihe River leaf of about 3 weeks.
Comparative example 2
Compare with embodiment 1, its difference is, in the process of second segment drying, baking temperature is 70 DEG C, is dried to water content lower than 8%.
Comparative example 3
Compare with embodiment 1, its difference is, it is 40% that the first stage is dried to water content, and second stage is dry 4 ~ 5h under the condition of temperature 50 C, is dried to water content lower than 8%.
Comparative example 4
Compare with embodiment 1, its difference is, adopts the method for boiling water blanching to carry out surface sterilization in the process of cleaning and sterilizing.
Experimental example
Experimental technique: adopt temperature to be mountain, about 90 DEG C hot-water soak Huaihe River dehydrated vegetables, measures the rehydration of mountain, Huaihe River leaf dehydrated vegetable.
Carry out sensory evaluation, full marks 10 points with indexs such as color and luster, flavour smell, tissue morphologies, sensory evaluation is carried out to dehydrated vegetables.
Adopt 2,6-dichloroindophenol titration to measure Vc content, Vc storage rate is the ratio of Vc content in Vc content and fresh vegetables in dehydrated vegetables.
Experimental result
| Reconstitution rate | Sensory evaluation | Vc storage rate | |
| Embodiment 1 | 8.8 | 9.0 | 25.62％ |
| Embodiment 2 | 9.1 | 9.2 | 30.12％ |
| Embodiment 3 | 8.5 | 8.8 | 28.23％ |
| Comparative example 1 | 8.3 | 7.1 | 26.05％ |
| Comparative example 2 | 7.1 | 7.8 | 22.14％ |
| Comparative example 3 | 7.5 | 8.1 | 16.85％ |
| Comparative example 4 | 6.5 | 8.2 | 16.25％ |
From above data, mountain, the Huaihe River leaf dehydrated vegetables reconstitution rate that the method for the invention obtains is high, and color and luster is good, drying efficiency is high, the storage rates such as Vc are higher, and selection leaf age is mountain, the Huaihe River base of leaf of 1 ~ 2 week, can obtain mountain, the Huaihe River leaf dehydrated vegetables that organoleptic quality is better, nutritive value is abundanter.
Although above the present invention is described in detail with a general description of the specific embodiments, on basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, all belong to the scope of protection of present invention.
Claims (8)
1. a preparation technology for mountain, Huaihe River leaf dehydrated vegetables, is characterized in that, comprises the steps: that mountain, Huaihe River leaf is carried out cleaning and sterilizing successively, drains, cutting and drying;
Described drying adopts the mode of stage drying to carry out, and the baking temperature controlling first stage is 85 ~ 100 DEG C, and being dried to water content is 16 ~ 20%, and the baking temperature of second stage is 50 ~ 60 DEG C, and being dried to water content is 5 ~ 8%.
2. method according to claim 1, it is characterized in that, the concrete operations of described cleaning and sterilizing are: first use the running water through ultraviolet or ozonization to wash mountain, Huaihe River leaf, then mountain, the Huaihe River leaf after washing is soaked 20 ~ 30min and carries out surface sterilization in ozone pond.
3. method according to claim 2, is characterized in that, in described ozone pond, the concentration of ozone is 60 ~ 90mg/L.
4. the method according to any one of claims 1 to 3, is characterized in that, mountain, described Huaihe River leaf is mountain, the Huaihe River base of leaf of the length 5 ~ 15cm in 1 ~ 2 week growth period.
5. method according to claim 4, is characterized in that, described in drain adopt vibrations ribbon conveyer, vibrations drain 2 ~ 3min.
6. method according to claim 1 or 5, is characterized in that, mountain, Huaihe River leaf is cut into the stem section of 1 ~ 3cm.
7. the method according to any one of claim 1 ~ 6, is characterized in that, comprises the steps:
1) the growth selection phase is mountain, the Huaihe River base of leaf of the length 5 ~ 15cm of 1 ~ 2 week;
2) with the running water through ultraviolet or ozonization, mountain, Huaihe River leaf is washed, then by mountain, the Huaihe River leaf after washing at ozone concentration be 60 ~ 90mg/L ozone pond in soak 20 ~ 30min and carry out surface sterilization, mountain, the Huaihe River leaf after being sterilized;
3) send mountain, the Huaihe River leaf after described sterilization to vibrations ribbon conveyer, obtain mountain, the Huaihe River leaf draining surface moisture;
4) described mountain, the Huaihe River leaf drained away the water is cut into the stem section of 1 ~ 3cm;
5) the stem section after described cutting is carried out two-part drying, the temperature controlling the first stage is 85 ~ 100 DEG C, and being dried to water content is 16 ~ 20%; The temperature of second stage is 50 ~ 60 DEG C, and being dried to water content is 5 ~ 8%, obtains mountain, Huaihe River leaf dehydrated vegetables.
8. mountain, the Huaihe River leaf dehydrated vegetables prepared of method described in any one of claim 1 ~ 7.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106403555A (en) * | 2016-09-07 | 2017-02-15 | 王振霞 | Traditional Chinese medicine drying and placing device |
| CN107822068A (en) * | 2017-10-19 | 2018-03-23 | 重庆德庄农产品开发有限公司 | Mango flavor chafing dish bottom flavorings and manufacture craft |
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| CN101156624A (en) * | 2007-11-08 | 2008-04-09 | 慈溪市蔬菜开发有限公司 | A dewatering processing method of pickled cabbage |
| CN101766286A (en) * | 2009-01-07 | 2010-07-07 | 乔维汉 | Vegetable food preparation method |
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- 2015-08-20 CN CN201510514017.3A patent/CN105211262B/en active Active
Patent Citations (4)
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| CN1351843A (en) * | 2000-11-08 | 2002-06-05 | 株式会社农心 | Method and apparatus for preparing dry pepper healthly by using continuously sterilizing and dry process |
| CN101156624A (en) * | 2007-11-08 | 2008-04-09 | 慈溪市蔬菜开发有限公司 | A dewatering processing method of pickled cabbage |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106403555A (en) * | 2016-09-07 | 2017-02-15 | 王振霞 | Traditional Chinese medicine drying and placing device |
| CN107822068A (en) * | 2017-10-19 | 2018-03-23 | 重庆德庄农产品开发有限公司 | Mango flavor chafing dish bottom flavorings and manufacture craft |
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| CN105211262B (en) | 2018-11-13 |
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