CN104430814A - Dried dendrocalamus brandisii shoots and preparation method thereof - Google Patents
Dried dendrocalamus brandisii shoots and preparation method thereof Download PDFInfo
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- CN104430814A CN104430814A CN201410657271.4A CN201410657271A CN104430814A CN 104430814 A CN104430814 A CN 104430814A CN 201410657271 A CN201410657271 A CN 201410657271A CN 104430814 A CN104430814 A CN 104430814A
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Abstract
The invention discloses a preparation method for dried dendrocalamus brandisii shoots. The preparation method comprises the following steps: a slicing step: cutting the cleaned dendrocalamus brandisii shoots into slices to prepare shoot slices; a green-removing step: steaming the shoot slices in steaming equipment and then cooling to obtain cooked shoot slices; a primary air-drying step: drying the cooked shoot slices until the water content is 50-60%; a secondary air-drying step: turning over the shoot slices after the primary air-drying, and then re-drying until the water content is 15-25%; a tertiary air-drying step: air-drying the shoot slices after the secondary air-drying until the water content is less than 8%, so as to obtain the dried shoots. The preparation method for the dried dendrocalamus brandisii shoots, disclosed by the invention, is simple in process and capable of processing the fresh dendrocalamus brandisii into the dried shoot products, and thus solving the problem of waste caused by that dendrocalamus brandisii cannot be stored for a long time; the dried dendrocalamus brandisii shoots prepared by the method are low in water content, long in storage time, intact in nutritional ingredient maintenance, green and safe, and delicious in taste.
Description
Technical field
The invention belongs to food processing technology field, particularly relate to a kind of sweet imperial dried bamboo shoot with and preparation method thereof.
Background technology
Sweet imperial bamboo, has another name called sweet bamboo, a kind under grass family Dendrocalamus.Sweet imperial bamboo shoots because of its bamboo shoot body pure white thick, bamboo shoot delicious, the first-class king be called in bamboo shoot of quality, fresh bamboo shoot section can be eaten raw, it is one of the highest, best in quality good kind of sugar content in all bamboo shoots of China, titled with the good reputation of " in bamboo shoot superfine product ", " kings in bamboo shoot ", " in element, first is fresh ".
Sweet imperial bamboo shoots Shooting stage is the 6-10 month, wherein 7-9 month is the phase of abounding with, bamboo shoot plant height 80-150 centimetre, strain is produced about 5 kilograms and large is reached 10 kilograms, bamboo shoots hide sweetness, and delicate fragrance is tasty, have tender, crisp, fragrant, sweet four large features, nutritious very abundant, be a kind of very delicious green mountain delicacy.Dragon bamboo shoots have very high eating and use and medical value, according to surveying and determination: sweet imperial bamboo shoots contain protein 3.8%, fat 0.49%, total reducing sugar 2.5%, fiber 1%, is also rich in the elements such as phosphorus, magnesium, calcium, iron and vitamin B1, B2, C and 18 seed amino acids and edible crude fibre, it is a kind of pollution-free food of high protein and low fat, gastrointestinal disturbances and excretion can be promoted, often eat and can reduce harmful substance and be detained in vivo and absorb that there is the effects such as the aid digestion and fat-reducing of anti-cancer of quenching one's thirst.
The sweet imperial fresh bamboo shoots preservation time is short, if can not eat in time after excavating, bamboo shoots there will be aging and nutritional labeling is wherein reduced.
Summary of the invention
For this reason, the object of the present invention is to provide a kind of processing technology of sweet imperial dried bamboo shoot, to extend the preservation time of bamboo shoots.
The invention provides a kind of preparation method of sweet imperial dried bamboo shoot, comprise the steps: slicing step: the sweet imperial bamboo shoots cleaned up are cut into sheet, make bamboo shoot sheet; Complete step: described bamboo shoot sheet is placed in digesting apparatus and cooks rear cooling, obtains ripe bamboo shoot sheet; An air drying steps: it is 50-60% that described ripe bamboo shoot sheet is dried to water content; Secondary air drying steps: after the bamboo shoot sheet turn-over after once air-dry, being again dried to water content is 15-25%; Tertiary air is done: the bamboo shoot sheet after secondary is air-dry is air-dry is less than 8% in water content, obtains dried bamboo shoots.
Alternatively, preparation in accordance with the present invention, described in complete in step, described bamboo shoot sheet steams 30-45 minute at 90-110 DEG C.
Alternatively, preparation in accordance with the present invention, in a described air drying steps, by the heated-air drying 6-8 hour of described bamboo shoot sheet 80-100 DEG C.
Alternatively, preparation in accordance with the present invention, in described secondary air drying steps, by the heated-air drying 7-8 hour of bamboo shoot sheet 80-100 DEG C after once air-dry.
Alternatively, preparation method of the present invention, described tertiary air is done in step, the heated-air drying 3-5 hour of the bamboo shoot sheet after secondary is air-dry 50-65 DEG C.
Alternatively, preparation in accordance with the present invention, the thickness of described bamboo shoot sheet is 0.5-0.8cm.
Alternatively, preparation in accordance with the present invention, described method comprises pre-treatment step further: before step of carrying out completing, by the part that sweet imperial bamboo is removed shell and can not eat.
Present invention also offers a kind of sweet imperial dried bamboo shoot obtained according to above-mentioned preparation method.
Sweet imperial dried bamboo shoot preparation method technique of the present invention is simple, new fresh and sweet imperial bamboo shoot process can be become dried bamboo shoots product, solving sweet imperial bamboo shoots cannot long-term storage and the waste problem caused, the sweet imperial dried bamboo shoot water content prepared by the method is low, the storage time is long, nutritional labeling keeps complete, and green safety, tasty mouthfeel.
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit will become cheer and bright for those of ordinary skill in the art.Accompanying drawing only for illustrating the object of preferred embodiment, and does not think limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic flow sheet of the preparation method of sweet imperial dried bamboo shoot of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing and concrete embodiment, the invention will be further described.
The preparation method that the invention provides a kind of sweet imperial dried bamboo shoot and the sweet imperial dried bamboo shoot obtained according to the method.Because the sweet imperial fresh bamboo shoots preservation time is short, therefore adopt bamboo shoot and want in time, to be advisable with the sweet imperial bamboo shoot of old tender suitable high-quality of not being unearthed.Select fresh good bamboo shoot, bamboo shoot of checkmating, the bamboo shoot that damage by worms, rotten bamboo shoot, sort out and dispose.For the bamboo shoots of having sorted, then start to make dried bamboo shoots.
Fig. 1 shows the schematic flow sheet of sweet imperial dried bamboo shoot preparation method of the present invention.As shown in Figure 1, the preparation method of sweet imperial dried bamboo shoot of the present invention comprises the steps:
Slicing step S1200: the sweet imperial bamboo shoots cleaned up are cut into sheet, make bamboo shoot sheet;
Complete step S1300: described bamboo shoot sheet is placed in digesting apparatus and cooks rear cooling, obtains ripe bamboo shoot sheet;
An air drying steps S1400: it is 50-60% that described ripe bamboo shoot sheet is dried to water content;
Secondary air drying steps S1500: after the bamboo shoot sheet turn-over after once air-dry, being again dried to water content is 15-25%;
Tertiary air does S1600: the bamboo shoot sheet after secondary is air-dry is air-dry is less than 8% in water content, obtains dried bamboo shoots.
Wherein, complete in step S1200 described, the sweet imperial bamboo shoots cleaned up are cut into the bamboo shoot sheet that thickness is 0.5-0.8cm, size keeps evenly as far as possible.Preferably, can also according to the size of bamboo shoot chip size, by separated for the large and small bamboo shoot sheet cut.
Complete in step S1300 described, bamboo shoot sheet is placed in steam box and steams, steaming temperature is traditionally arranged to be 90-110 DEG C, and steaming time is 30-45 minute.Preferably, the large and small bamboo shoot sheet cut can be put into two steam boxs respectively, the steaming time general control of larger bamboo shoot sheet is at 35-45 minute, and the steaming time general control of smaller bamboo shoot sheet is at 30-35 minute.Generally the bamboo shoot sheet after steaming should be put at once screen cloth spreads out dry in the air cool.
In a described air drying steps S1400, by dry in the air cool after the heated-air drying 6-8 hour of bamboo shoot sheet 80-100 DEG C, the water content of bamboo shoot sheet can be made to be 50-60%.By once air-dry, the most of moisture in bamboo shoot sheet can be removed.
In described secondary air drying steps S1500, after all bamboo shoot sheets are carried out turn-over, use the 80-100 DEG C of air-dry 7-8 hour of hot blast again, the water content of bamboo shoot sheet can be made to be 15-25%.
Do in step S1600 at described tertiary air, the heated-air drying 3-5 hour of the bamboo shoot sheet after secondary is air-dry 50-65 DEG C, makes water content be less than 8%.
Further, preparation method of the present invention also comprises pre-treatment step S1100: remove sweet imperial bamboo shoots shell and old, hard part and the part that can not eat.Bamboo shoots should be processed after plucking in time, because fresh bamboo shoot are unsuitable stored for a long time.Pluck 4-6 hour, at most no more than 6 hours, will complete to bamboo shoots as early as possible, reduce nutritional labeling to prevent ageing of bamboo shoot.After removing shell and can not part being eaten, sweet imperial bamboo shoots are clean by clean water, remove earth residual on it and impurity, next manufacturing procedure can be entered.
More according to the optional element of the sweet imperial dried bamboo shoot preparation method of the present invention's proposition, can design various embodiments, therefore specific embodiment is only as the exemplary illustration of specific implementation of the present invention, and does not form limitation of the scope of the invention.In order to concrete description the present invention, following examples are selected to carry out exemplary illustration.
Embodiment 1
The new fresh and sweet imperial bamboo shoots of plucking are removed shell and clean after removing unedible position, to remove earth residual on it and impurity.The sweet imperial bamboo shoots cleaned up are cut into the bamboo shoot sheet that thickness is 0.6cm, and size keeps evenly as far as possible.Be placed in steam box by the bamboo shoot sheet cut, boiling temperature is set to 100 DEG C, steams 35 minutes, the bamboo shoot sheet then boiled be placed in screen cloth spreads out dry in the air cool.By the heated-air drying 8 hour of cooled bamboo shoot sheet with 80 DEG C, bamboo shoot sheet water content is made to be about 50%.By all bamboo shoot sheet turn-overs, continue the heated-air drying 8 hours with 80 DEG C, make bamboo shoot sheet water content be about 20%.Finally use the heated-air drying 3 hours of 65 DEG C, make bamboo shoot sheet water content be less than 8%, be i.e. obtained dried bamboo shoots.
Embodiment 2
The new fresh and sweet imperial bamboo shoots of plucking are removed shell and clean after removing unedible position, to remove earth residual on it and impurity.The sweet imperial bamboo shoots cleaned up are cut into the bamboo shoot sheet that thickness is 0.6cm, and size keeps evenly as far as possible.Be placed in steam box by the bamboo shoot sheet cut, boiling temperature is set to 110 DEG C, steams 30 minutes, the bamboo shoot sheet then boiled be placed in screen cloth spreads out dry in the air cool.By the heated-air drying 6 hour of cooled bamboo shoot sheet with 100 DEG C, bamboo shoot sheet water content is made to be about 50%.By all bamboo shoot sheet turn-overs, continue the heated-air drying 7 hours with 90 DEG C, make bamboo shoot sheet water content be about 20%.Finally use the heated-air drying 5 hours of 60 DEG C, make bamboo shoot sheet water content be less than 8%, be i.e. obtained dried bamboo shoots.
Embodiment 3
The new fresh and sweet imperial bamboo shoots of plucking are removed shell and clean after removing unedible position, to remove earth residual on it and impurity.The sweet imperial bamboo shoots cleaned up are cut into the bamboo shoot sheet that thickness is 0.6cm, and size keeps evenly as far as possible.Be placed in steam box by the bamboo shoot sheet cut, boiling temperature is set to 90 DEG C, steams 45 minutes, the bamboo shoot sheet then boiled be placed in screen cloth spreads out dry in the air cool.By the heated-air drying 7 hour of cooled bamboo shoot sheet with 90 DEG C, bamboo shoot sheet water content is made to be about 50%.By all bamboo shoot sheet turn-overs, continue the heated-air drying 7 hours with 100 DEG C, make bamboo shoot sheet water content be about 20%.Finally use the heated-air drying 3 hours of 50 DEG C, make bamboo shoot sheet water content be less than 8%, be i.e. obtained dried bamboo shoots.
Embodiment 4
The new fresh and sweet imperial bamboo shoots of plucking are removed shell and clean after removing unedible position, to remove earth residual on it and impurity.The sweet imperial bamboo shoots cleaned up are cut into the bamboo shoot sheet that thickness is 0.6cm, and size keeps evenly as far as possible.Be placed in steam box by the bamboo shoot sheet cut, boiling temperature is set to 100 DEG C, steams 40 minutes, the bamboo shoot sheet then boiled be placed in screen cloth spreads out dry in the air cool.By the heated-air drying 7 hour of cooled bamboo shoot sheet with 90 DEG C, bamboo shoot sheet water content is made to be about 60%.By all bamboo shoot sheet turn-overs, continue the heated-air drying 6 hours with 90 DEG C, make bamboo shoot sheet water content be about 20%.Finally use the heated-air drying 4 hours of 50 DEG C, make bamboo shoot sheet water content be less than 8%, be i.e. obtained dried bamboo shoots.
Adopt above-mentioned preparation method only to need just bamboo shoot sheet to be dried to water content in 18-20 hour and be less than 8%, drying time is short, and dried bamboo shoots water content is low, saves the nutritional labeling of bamboo shoots, also can long-time storage.
It should be noted, the present invention will be described instead of limit the invention for above-described embodiment, and those skilled in the art can design alternative embodiment when not departing from the scope of claims.In the claims, any reference symbol between bracket should be configured to limitations on claims.Word " comprises " not to be got rid of existence and does not arrange element in the claims or step.Word first, second and third-class use do not represent any order, can be title by these word explanations.
Claims (8)
1. a preparation method for sweet imperial dried bamboo shoot, comprises the steps:
Slicing step: the sweet imperial bamboo shoots cleaned up are cut into sheet, make bamboo shoot sheet;
Complete step: described bamboo shoot sheet is placed in digesting apparatus and cooks rear cooling, obtains ripe bamboo shoot sheet;
An air drying steps: it is 50-60% that described ripe bamboo shoot sheet is dried to water content;
Secondary air drying steps: after the bamboo shoot sheet turn-over after once air-dry, being again dried to water content is 15-25%;
Tertiary air does step: the bamboo shoot sheet after secondary is air-dry is air-dry is less than 8% in water content, obtains dried bamboo shoots.
2. preparation method according to claim 1, wherein, described in complete in step, described bamboo shoot sheet steams 30-45 minute at 90-110 DEG C.
3. preparation method according to claim 1, wherein, in a described air drying steps, by the heated-air drying 6-8 hour of described bamboo shoot sheet 80-100 DEG C.
4. preparation method according to claim 1, wherein, in described secondary air drying steps, by the heated-air drying 7-8 hour of bamboo shoot sheet 80-100 DEG C after once air-dry.
5. preparation method according to claim 1, described tertiary air is done in step, the heated-air drying 3-5 hour of the bamboo shoot sheet after secondary is air-dry 50-65 DEG C.
6. the preparation method according to any one of claim 1-5, wherein, the thickness of described bamboo shoot sheet is 0.5-0.8cm.
7. the preparation method according to any one of claim 1-5, wherein, described method comprises pre-treatment step further: before step of carrying out completing, by the part that sweet imperial bamboo is removed shell and can not eat.
8. the sweet imperial dried bamboo shoot that preparation method obtains according to any one of claim 1-7.
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| CN201410657271.4A CN104430814A (en) | 2014-11-18 | 2014-11-18 | Dried dendrocalamus brandisii shoots and preparation method thereof |
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| CN201410657271.4A CN104430814A (en) | 2014-11-18 | 2014-11-18 | Dried dendrocalamus brandisii shoots and preparation method thereof |
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| CN104872778A (en) * | 2015-04-29 | 2015-09-02 | 青田真旺农林科技发展有限公司 | Original ecology dried bamboo shoot processing device and processing method thereof |
| CN105533528A (en) * | 2015-12-10 | 2016-05-04 | 重庆勤发食品有限公司 | Processing method of dried bamboo shoots |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104872778A (en) * | 2015-04-29 | 2015-09-02 | 青田真旺农林科技发展有限公司 | Original ecology dried bamboo shoot processing device and processing method thereof |
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| CN105533528A (en) * | 2015-12-10 | 2016-05-04 | 重庆勤发食品有限公司 | Processing method of dried bamboo shoots |
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Application publication date: 20150325 |