CN109938239A - Apple pomace is preparing application and a kind of preparation method of fruit-vegetable paper in fruit-vegetable paper - Google Patents
Apple pomace is preparing application and a kind of preparation method of fruit-vegetable paper in fruit-vegetable paper Download PDFInfo
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Abstract
The invention belongs to food processing technology fields, apple pomace is disclosed as auxiliary material in the purposes being used to prepare in fruit-vegetable paper, the protopectin that apple pomace is rich in by the present invention is converted into pectin, so that paper molding can be realized without adding other any food additives for playing binder effect in fruit-vegetable paper preparation.The present invention discloses a kind of methods for preparing fruit-vegetable paper using apple pomace, including preparing supplementary material, apple pomace mashing, homogeneous, infusion, sieving preparation apple pulp, inspissated juice or vegetable juice and apple pulp are deployed, the processes such as molding, preparation process of the invention does not need to add any other binder or chemical addition agent, on the one hand solve the problems, such as that other binders generate unhappy glue taste because dry, on the other hand because product be free of additional additive due to make prepared by fruit-vegetable paper it is safe and reliable, label cleaning, can more be esthetically acceptable to the consumers.
Description
Technical field
The invention belongs to food processing technology fields, and in particular to apple pomace is preparing the application in fruit-vegetable paper, Yi Jiyi
The preparation method of kind fruit-vegetable paper.
Background technique
Fruit-vegetable paper is one kind using fruit or vegetable juice as main material, and auxiliary material appropriate is added, and through mashing, roller-compaction, is done
A kind of dry and preparation food similar to paper, can retain the original flavor of fruits and vegetables, color, and moisture content is low, have
Have the advantages that shelf life is long, stores convenient transportation, has become food service industry research as a kind of novel fruits and vegetables deep processed product
A big hot spot.The production technology of fruit-vegetable paper generally comprises pretreatment of raw material-mashing-allotment-shaping and drying-finished product packing
Etc. processes, in this process, adding auxiliary material based on binder and carrying out allotment is to influence the molding key factor of fruit-vegetable paper
One of.Since the moisture content of fruits and vegetables slurry is generally 90% or more, and colloidal substance content is low, does not add binder and is adjusted
The fruits and vegetables slurry matched is difficult to form.Therefore, it is required to be implemented as by addition binder in existing fruit-vegetable paper preparation process
Type, common binder mainly have sodium carboxymethylcellulose, sodium alginate, gelatin, starch and pectin etc..Publication No. CN
The Chinese patent of 107080201A discloses a kind of preparation method of blueberry fruit paper, by being added in blueberry by alginic acid
The binder that sodium, carboxymethyl cellulose, pectin and glycerol form, is then mixed with beating, drying and moulding obtains blueberry fruit paper.
The various aspects such as food nutrition, food safety, food sense organ are wanted with to the deep and people that fruit-vegetable paper is studied
The raising asked, nutritional quality, the edible safety quality of fruits and vegetables paper product are increasingly becoming the emphasis of fruit-vegetable paper research.The battalion of fruit-vegetable paper
It supports value, taste flavor and edible safety and directly affects fruit-vegetable paper acceptance and sales situation in the market.
Summary of the invention
Group of the present invention is used to prepare fruit-vegetable paper instead of the auxiliary material of binder it has surprisingly been found that apple pomace can be used as, thus
It does not need to add other any binders in fruit-vegetable paper preparation and/or paper molding can be realized in chemical addition agent.
As the first aspect of the present invention, the present invention provides apple pomace in preparing fruit-vegetable paper as the purposes of auxiliary material.
Preferably, the apple pomace is as binder for forming fruit-vegetable paper.
Preferably, after the apple residue mashing and infusion processing, for forming fruit-vegetable paper.
Apple pomace is by mashing, and after infusion processing, a large amount of protopectin being rich in are converted into pectin, thus can generation
Film forming characteristics is played for binder.In this process, the cellulose being rich in apple pomace can be used as skeleton, plays support and makees
With, can be used as binder by a large amount of pectin that protopectin is transformed, rise connection function so that fruit-vegetable paper can be at paper
Type.
Preferably, the infusion time is 20~30min.
As a second aspect of the invention, the present invention provides a kind of method for preparing fruit-vegetable paper using apple pomace, including with
Lower step:
(1) prepare supplementary material: raw material is inspissated juice or vegetable juice, and auxiliary material is apple pomace；
(2) apple pomace pre-processes:
Mashing: it takes apple pomace that water is added to be beaten, obtains apple pulp；
Infusion: by apple pulp infusion under slight boiling condition；
(3) it deploys: inspissated juice or vegetable juice being added in the apple pulp after above-mentioned infusion, mixed serum is obtained；
(4) form: by resulting mixed serum film on filming medium, drying is to get fruit-vegetable paper.
In some preferred embodiments, raw material is by weight percentage 30%~60% in the step (1)
Inspissated juice or vegetable juice, the apple pomace that auxiliary material is 30%~60%.
In some preferred embodiments, in the step (2) mass ratio of apple pomace and mashing water be 1:(2~
4), beating time is 5~8min.
In some preferred embodiments, the temperature of slightly boiled infusion is 90~95 DEG C in the step (2), the infusion time
For 20~30min.This process is to determine the molding key of fruit-vegetable paper, and the purpose of slightly boiled infusion is to make a large amount of water in apple pomace not
Dissolubility protopectin is converted into pectin, so that apple dreg slurry can play the effect of binder.
In some preferred embodiments, the preferred soluble solid of terminal of slightly boiled infusion contains in the step (2)
Amount reaches 30% or more.
In some preferred embodiments, when inspissated juice or vegetable juice addition apple pulp are subsequent in the step (3)
Slightly boiled infusion is held in continuation of insurance, and the purpose for carrying out slightly boiled infusion here is to kill the microorganism in mixed serum, while improving gained
The soluble fixture content of the mixed serum arrived, convenient for molding.
Preferably, the preferred soluble solid content of terminal of slightly boiled infusion reaches 50% or more in step (3).
In some preferred embodiments, coating thickness of the mixed serum on filming medium is in the step (4)
0.3~0.5cm.
In some preferred embodiments, the filming medium is glass panel, baking tray or smooth Jie of other surfaces
Matter.
In some preferred embodiments, heated-air drying is used in the step (4), drying temperature is 70~75 DEG C,
2~3m/s of wind speed, drying time are 1.5~2 hours.
It is understood that dry other usual ways that can also use this field, such as microwave drying, far infrared are dry
Dry, vacuum freeze drying is air-dried at room temperature.
In some preferred embodiments, in the step (4) using using vacuum freeze drying, pre-freezing temperature is-
40~-45 DEG C, the pre-freeze time is 1.0~2.0h, and vacuum degree is 85~90Pa, and condenser temperature is -45~-50 DEG C.
It in some preferred embodiments, further include being carried out at homogeneous and/or sieving to apple pulp in the step (2)
The step of reason.
Preferably, the apple pulp obtained to mashing first carries out homogenization, purpose keeps apple pulp homogeneous.
Preferably, the homogenizing time is 3~5min.
Preferably, carrying out sieving processing to the apple pulp after infusion, the purpose of sieving is big removed in apple pulp
Grain, so that prepared fruit-vegetable paper surface is smooth, delicate mouthfeel preferably crosses 20 meshes.
It in some preferred embodiments, further include the depickling of addition 5%~15% in the fruit-vegetable paper preparation process
The step of decoloration cider is seasoned, depickling decolourize cider for further adjusting or improving the mouthfeel of fruit-vegetable paper, this is de-
Acid decoloration cider and inspissated juice are added simultaneously in the apple pulp after sieving.
Be used to prepare fruit-vegetable paper fruit be berries for example strawberry, mulberries, Cranberry, blueberry, blackberry, blueberry, raspberry, raspberry,
Any one in grape, Kiwi berry, gooseberry etc., citrus such as orange, orange, shaddock, cumquat, lemon, grape fruit, lime etc.
In any one, kernel approaches such as peach, Lee, apricot, plum, longan, lichee, cherry, any one in mango, pomaceous fruit such as apple
Any one in fruit, pears, loquat, hawthorn etc., melon such as watermelon, muskmelon, any one or above-mentioned fruit in "Hami" melon
In any two kinds or more of mixing.
The vegetables for being used to prepare fruit-vegetable paper are leaf vegetables, vegetable category, root tuber class or tuberous vegetable, can be spinach, Hu
The mixing of any one or any two kinds or more in radish, cucumber, tomato, Xi Lanhua, Chinese yam etc..
The raw material for being used to prepare fruit-vegetable paper may be the compounding of fruits and vegetables.
Wherein, the method for concentration of fruit juice or vegetable juice can using rotary evaporation concentration, vacuum concentration, freeze concentration, instead
Osmosis concentration, film concentration in any one.It is with rich flavor by concentration so that juice soluble solid content improves.
In the present invention, fresh, maturation is required as the apple pomace of auxiliary material, without going bad, nothing is rotted, non agricultural chemical residuum.This
Invention is used to prepare the fruits and vegetables of fruit-vegetable paper through conventional cleaning, i.e., thoroughly cleans fruit and vegetable surfaces with flowing water, removes the silt, micro- on surface
Then biology and remains of pesticide remove inedible part (removing the peel, stoning processing), supplementary material are made.
It is to be appreciated that the apple pulp that fresh apple is beaten can be directly used to prepare fruit-vegetable paper.Inventor
It is beaten using fresh apple, is equipped with inspissated juice or vegetable juice and equally obtains with certain tensile strength and elongation at break
Fruit-vegetable paper.
As the third aspect of the present invention, the present invention provides a kind of fruit-vegetable paper.
Preferably, the fruit-vegetable paper 100% is prepared by fruit and vegetable materials, and without containing other any binders or add
Add agent.
Preferably, the fruit-vegetable paper is by by weight percentage 30~60% inspissated juice and/or vegetable juice and 30
~60% apple pomace is prepared.
Preferably, the preparation method of the fruit-vegetable paper, comprising the following steps:
(1) prepare supplementary material: raw material is 30~60% inspissated juices and/or vegetable juice, the apple that auxiliary material is 30~60%
Slag；
(2) apple pomace pre-processes:
Mashing: it takes apple pomace that water is added to be beaten, obtains apple pulp；
Homogeneous: obtained apple pulp is subjected to homogenization；
Infusion: by the infusion under slight boiling condition of the apple pulp after homogeneous；
Sieving: the apple pulp after infusion is sieved, and it is stand-by to remove bulky grain；
(3) it deploys: inspissated juice or vegetable juice being added in above-mentioned apple pulp, slightly boiled infusion to soluble solid content
50% or more, mixed serum is obtained；
(4) form: by resulting mixed serum film on filming medium, drying is to get fruit-vegetable paper.
Preferably, the mass ratio of apple pomace and mashing water is 1:(2~4 in the step (2)), beating time 5
~8min.
Preferably, homogenizing time is 3~5min in the step (2).
Preferably, the temperature of slightly boiled infusion is 90~95 DEG C in the step (2), the infusion time is 20~30min.This
Process is to determine the molding key of fruit-vegetable paper, and the purpose of slightly boiled infusion is to convert a large amount of water-insoluble protopectin in apple pomace
For pectin, so that apple dreg slurry can play the effect of binder.
Preferably, the preferred soluble solid content of terminal of slightly boiled infusion reaches 30% or more in the step (2).
Preferably, the purpose being sieved in the step (2) is the bulky grain removed in apple dreg slurry, so that prepared
Fruit-vegetable paper surface it is smooth, delicate mouthfeel, preferably cross 20 meshes.
Preferably, coating thickness of the mixed serum on filming medium is 0.3~0.5cm in the step (4).
Preferably, the medium that the filming medium is glass panel, baking tray or other surfaces are smooth.
Beneficial effect:
1, the present invention makes apple pomace be used to prepare fruits and vegetables as binder using apple pomace as auxiliary material by Particular craft
Paper.Preparation process of the invention does not need to add other commodity binders or other chemical addition agents, is by auxiliary material of apple pomace
Fruit-vegetable paper can be made, on the one hand solve the problems, such as that other binders generate unhappy glue taste because dry, have good
Mouthfeel；On the other hand because product be free of additional additive due to make prepared by fruit-vegetable paper it is safe and reliable, be suitable for old man, children
Equal special populations are edible, and fruit paper label prepared by the present invention cleans, and can more be esthetically acceptable to the consumers.
2, paper mold thin slice is made in fresh fruit of vegetables by the present invention, has not only been effectively maintained flavor and the nutrition of fruits and vegetables, simultaneously
Improve the added value of fruits and vegetables, reduce the problems such as rotting due to fruits and vegetables caused by storing, transporting, is rotten, decrease transport at
This.Further, since apple pomace is rich in a large amount of active constituents, so that fruit-vegetable paper nutrition prepared by the present invention is more balanced.
3, the present invention expands its application range, not only contributes to environmental protection by the new application of exploitation apple pomace, and
The added value of apple can also be improved, there is important economic significance.
Specific embodiment
Below with reference to embodiment, the content of the present invention will be explained in more detail.It should be appreciated that implementation of the invention is not limited to
In the following examples, the accommodation in any form and/or change made to the present invention fall within the scope of the present invention.
In the present invention, if not refering in particular to, all percentage is unit of weight, and all equipment and raw material etc. can be from
Market is bought or the industry is common.If the method that embodiment uses is the general technology of this field without specializing.
Binder
Raw material for making fruit-vegetable paper can be single fruits and vegetables, be also possible to the compounding of two or more above fruits and vegetables,
Since the moisture content of fruits and vegetables is larger, colloidal substance content is low, not easily molded in the drying process, therefore it is viscous to usually require addition
Knot agent enables paper to form.On the one hand, bonding agent can increase the viscosity of raw material convenient for molding, and another aspect can
To improve the ductility and flexibility of fruits and vegetables composite membrane.The common binder of food processing technology field include pectin, starch,
Gelatin, carragheen, xanthan gum, gellan gum, sodium carboxymethylcellulose, sodium alginate, agar, chitosan, soybean protein and its
One of his auxiliary agent with adhesive action and thickening power commonly used in the art or a variety of compound preparations.
Additive
The additive of cicada pupa mainly has following a few classes in fruit-vegetable paper preparation: (1) for improve the pigment of product color,
Including carmine, temptation is red, amaranth, sunset yellow, lemon yellow, brilliant blue etc.；(2) preservative to extend the shelf life for anti-corrosion
Class, including sulfur dioxide, benzoic acid and sodium benzoate, sorbic acid and its sylvite, dehydroactic acid sodium, sodium Diacetate, sodium propionate, (3)
Sweetener class, including acesulfame potassium, Aspartame, saccharin sodium, Sucralose, honey element etc. for improving mouthfeel.And other
The food additives for being used to improve product quality commonly used in the art.
The different binders of embodiment 1 are on the molding influence of fruit-vegetable paper
The purpose that binder is added in fruit-vegetable paper manufacturing process has been to be bonded the skeleton function of support, to improve fruits and vegetables
The physical property of juice, so that originally loose fruits and vegetables juice is convenient for molding.Different binders due to chemical component difference,
Action and effect played in fruit-vegetable paper forming process is different.
Inventor studies function and effect of the different binders in fruit-vegetable paper molding for preparing Apples paper.It is first
First, the concentration of the identical concentrated apple juice of preparation water content, cider is carried out referring to techniques known, such as vacuum is dense
Contracting, freeze concentration, reverse osmosis concentration etc., the present invention in using vacuum concentration.It is by following experimental group composition that carboxymethyl is fine respectively
It ties up plain sodium, wheaten starch, pectin and three or any two kinds of compounding is added in concentrated apple juice and obtains mixed serum (% table
Show that the weight of the binder of addition accounts for the percentage of concentrated apple juice weight), then obtained mixed serum is uniformly applied respectively
On baking tray, the molding effect of the concentrated apple juice of different binders is added in heated-air drying, observation.Experimental result is as shown in table 1:
The different binders of table 1 are on the molding influence of fruit-vegetable paper
It adds type discovery by constantly reducing binder pectin is molding to fruit paper is affected, and carboxymethyl cellulose
Plain sodium and wheaten starch influence molding on fruit paper are relatively small；Individually addition sodium carboxymethylcellulose, wheaten starch and fruit
Glue finds that the pectin molding of same additive amount preferably, also takes off film for easily whole, therefore add pectin as viscous in fruit-vegetable paper production
It is ideal to tie agent, not only forms a film, and easily take off film, can assign product preferable surface strength, is that production fruit-vegetable paper is preferable
Binder.
Meanwhile inventor has found that the additive amount of pectin can significantly affect the molding of fruit-vegetable paper and take off film, pectin additive amount
Too low meeting so that molding it is more difficult, paper effect is not achieved into.
Currently, being mainly commodity pectin in the pectin that food processing field is used as food additives, domestic commerce metaplasia produces
The raw material of pectin is mainly citrus and apple skin, but processing and utilization rate is lower, and 80% commodity pectin comes from import.Inventor into
One step imagines using rich pectous plant the production for replacing commodity pectin for fruit-vegetable paper, so that prepared product is more
Have safety, can more obtain the approval of consumer.
The conversion of protopectin in 2 apple pomace of embodiment
It is reported that apple pomace contains about 15% pectin, inventor imagines to be prepared using apple pomace substitute goods pectin
Fruit-vegetable paper.For preparing Apples paper, experimentation is as follows:
1, supplementary material is prepared:
Supplementary material includes following component: 3 times of concentrated apple juices of 40kg and 60kg apple pomace.
2, apple pomace pre-processes: taking fresh apple slag, the drinking water of 2 times of weight is added, is beaten using beater, beats
Pulp grinder revolving speed 20000rpm, beating time 5min obtain apple pulp；
3, above-mentioned apple pomace is added in concentrated apple juice, mixes well to obtain mixed serum, mixed serum is evenly coated in glass
On glass panel, with a thickness of 0.5cm, heated-air drying.
Experimental result shows that the fruit paper is difficult to form, it may be possible to because pectin from apple pomace content is relatively low, cause
Connection function can not be played, thus cannot be at paper.
Because containing a large amount of water-insoluble protopectin in apple pomace, inventor is it is further envisioned that by the protopectin in apple pomace
It is converted into soluble pectin, to improve into paper effect by improving the soluble pectin content in apple pomace.Experimentation
It is as follows:
1, supplementary material is prepared:
Supplementary material includes following component: 3 times of concentrated apple juices of 40kg and 60kg apple pomace.
2, protopectin conversion (apple pomace pretreatment):
(1) it is beaten: taking fresh apple slag, the drinking water of 2 times of weight is added, is beaten using beater, beater turns
Fast 20000rpm, beating time 5min, obtains apple pulp；
(2) infusion: by apple pulp infusion under slight boiling condition, decompose the protopectin in apple pomace sufficiently, the infusion time
It for 20min, is during which stirred continuously, it is 32.5% that soluble solid content is measured after infusion；
3, concentrated apple juice is added in above-mentioned apple pulp, mixes well to obtain mixed serum, mixed serum is evenly coated in
On glass panel, with a thickness of 0.5cm, heated-air drying.
Experimental result shows that the fruit paper is preferable at paper effect, and the obtained apple paper scraps of paper are complete, easily takes off paper, explanation
Apple pulp infusion under slight boiling condition makes the protopectin in apple pomace be converted into soluble pectin, and pectin from apple pomace content mentions
Height, so that being significantly improved at paper.
The preparation of 3 Apples paper of embodiment
In order to further improve the organoleptic quality of fruit-vegetable paper, for preparing Apples paper, preparation process is carried out into one
Step optimization, mainly includes the following steps:
1, supplementary material is prepared:
Supplementary material includes following component: 3 times of concentrated apple juices of 40kg and 60kg apple pomace.
2, apple pomace pre-processes:
(1) it is beaten: the drinking water of 2 times of weight being added in apple pomace, is beaten using beater, beater revolving speed
20000rpm, beating time 5min；
(2) homogeneous: using high-shear homogenizing machine to apple pulp carry out homogeneous, high-shear homogenizing machine revolving speed 15000rpm,
Matter time 4min；
(3) infusion: by the infusion under slight boiling condition of the apple pulp after homogenization, divide the protopectin in apple pomace sufficiently
Solution, infusion time are 20min, and it is 32.5% that soluble solid content is measured after infusion；
(4) it is sieved: the apple pulp after infusion being crossed into 20 meshes, removes bulky grain.
3, concentrated apple juice is added in above-mentioned apple pulp, continues to keep slight boiling condition, until soluble solid content
Greater than 50%, mixed serum is obtained；
4, the resulting mixed serum of step 3 is evenly coated on glass panel, with a thickness of 0.5cm, using heated-air drying
Method dries (70 DEG C, wind speed 2m/s, 2h) to moisture content and is lower than 8%, takes off film, cuts, obtain Apples paper.
Following comparative example is set simultaneously, to the organoleptic quality of Apples paper obtained for example at paper, surface appearance, mouth
Sense is evaluated, and records the tensile strength and elongation at break of fruit paper prepared by percentage of head rice when taking off film and measurement, knot
Fruit is as shown in table 2.
Comparative example 1: using 3 times of concentrated apple juices as raw material, using sodium carboxymethylcellulose and wheaten starch as auxiliary material (carboxylic
Sodium carboxymethylcellulose pyce and wheaten starch 1:8 in mass ratio are mixed into composite adhesive, and the additive amount of composite adhesive is concentration apple
The 1% of fruit juice), water is added in auxiliary material, stirs evenly obtained auxiliary material slurries, the weight of water is 3 times of auxiliary material weight；It will concentration
Cider is added in auxiliary material slurries, homogenization 4min, crosses 20 meshes, and the slightly boiled soluble solid content that is heated to is greater than
50%, mixed serum is obtained, resulting mixed serum is evenly coated on glass panel, with a thickness of 0.5cm, using heated-air drying
Method dries (70 DEG C, wind speed 2m/s, 2h) to moisture content and is lower than 8%.Film is taken off, cuts, obtains Apples paper.
Comparative example 2: it, will in apple pomace treatment process using apple pomace as auxiliary material using 3 times of concentrated apple juices as raw material
The infusion time is changed to 15min, remaining process is the same as described in embodiment 3.
Comparative example 3: it, will in apple pomace treatment process using apple pomace as auxiliary material using 3 times of concentrated apple juices as raw material
The infusion time is changed to 35min, remaining process is the same as described in embodiment 3.
Comparative example 4: using 3 times of concentrated apple juices as raw material, using apple pomace as auxiliary material, in apple pomace treatment process not
Homogenization is carried out, remaining process is the same as described in embodiment 3.
Comparative example 5: using 3 times of concentrated apple juices as raw material, using apple pomace as auxiliary material, in apple pomace treatment process not
Sieving processing is carried out, remaining process is the same as described in embodiment 3.
Influence of 2 different disposal of table to fruit-vegetable paper organoleptic quality
The results showed that
The Apples paper of embodiment 3 takes off the indexs such as film properties, percentage of head rice, tensile strength, elongation at break and comparative example 1
It is unobvious with 3~5 difference of comparative example, illustrate that treated that apple pomace is fully able to replaces carboxymethyl by slightly boiled infusion 20min
Sodium cellulosate and wheaten starch enable fruit juice to form to obtain fruit-vegetable paper.It is close using the molding effect of apple pomace and infusion time
Cut phase is closed, it can be seen that apple pomace of the infusion time greater than 20min or more is fully able to replace sodium carboxymethylcellulose and wheat
Starch, and apple pomace of the infusion time less than 20min cannot then be such that paper forms, and can not form so as to cause comparative example 2.
The fruit-vegetable paper of embodiment 3 shows smooth, and gap is uniform, and sample appearance is substantially better than comparative example 2~5；Embodiment 3
Fruit-vegetable paper delicate mouthfeel, change mouth is good, and no tooth gluing sense and glue sense, mouthfeel are substantially better than comparative example 1.
In step 2, homogeneous and sieving processing are carried out after mashing can guarantee puree exquisiteness, so that fruit-vegetable paper mouthfeel is soft
Sliding, not coarse, therefore, the surface appearance and mouthfeel of the fruit paper of embodiment 3 are substantially better than comparative example 4 and comparative example 5.
Keep slight boiling condition that the protopectin in apple pomace can be made to be fully converted into pectin, so that final fruit-vegetable paper can
Molding, from
The experimental result of embodiment 3, comparative example 2 and comparative example 3 can be seen that the infusion time preferably 20min~
Between 30min, if the infusion time is less than the dissolution of 20min protopectin not exclusively, cause fruit-vegetable paper that can not form, if the infusion time is big
Apple pomace is easily caused in 30min and generates obvious brown stain, influences product color and mouthfeel.
In step 4, glass panel is to keep fruit-vegetable paper surface smooth, and thickness is uniform, it will be understood that other film forming are situated between
Matter such as baking tray etc., as long as can satisfy, surface is smooth to can be applied to the present invention.
Guarantee that moisture content lower than 8% is mouthfeel in order to guarantee fruit-vegetable paper and the growth for inhibiting microorganism, extends goods
The frame phase.
In some preferred embodiments, in order to further improve the mouthfeel of fruit-vegetable paper, one can be added in step 3
The cider of quantitative depickling decoloration, so that final products mouthfeel is more preferably, the preferred 5%- of additive amount of depickling depickling cider
15%.
The preparation of 4 blueberries paper of embodiment
Select fresh, maturity is moderate, stand-by without concentration blueberry juice is made after rotten blueberry cleaning without rotten.
The preparation of blueberries paper the following steps are included:
1, supplementary material is prepared:
Supplementary material includes following component: 2 times of concentration blueberry juices of 45kg, 40kg apple pomace and 5kg depickling depickling cider.
2, apple pomace pre-processes:
(1) it is beaten: the drinking water of 3 times of weight being added in apple pomace, is beaten using beater, beater revolving speed
20000rpm, beating time 6min；
(2) homogeneous: apple pomace is homogenized using high-shear homogenizing machine and carries out homogeneous, high-shear homogenizing machine revolving speed
15000rpm, homogenizing time 4min；
(3) infusion: the infusion under slight boiling condition of the complete apple pulp of homogeneous sufficiently decomposes the protopectin in apple pomace,
The infusion time is 25min, and it is 32.0% that soluble solid content is measured after infusion；
(4) be sieved: the apple pulp after infusion crosses 20 meshes, removes bulky grain.
3, blueberry juice will be concentrated and depickling depickling cider is added in above-mentioned apple pulp, and continue to keep slight boiling condition, until
Soluble solid content is greater than 50%, obtains mixed serum；
4, the resulting slurries of step 3 are evenly coated on glass panel, with a thickness of 0.5cm, using the method for heated-air drying
It dries (75 DEG C, wind speed 3m/s, 1.5h), takes off film, cut, obtain blueberries paper.This blueberries paper moisture content is lower than 8%.
The preparation of 5 strawberry fruit paper of embodiment
Select fresh, maturity is moderate, stand-by without concentrated strawberry juice is made after rotten strawberry cleaning without rotten.
The preparation of strawberry fruit paper the following steps are included:
1, supplementary material is prepared:
Supplementary material includes following component: 1.5 times of concentrated strawberry juices of 37kg and 50kg apple pomace.
2, apple pomace pre-processes:
(1) it is beaten: the drinking water of 4 times of weight being added in apple pomace, is beaten using beater, beater revolving speed
20000rpm, beating time 8min；
(2) homogeneous: apple pomace is homogenized using high-shear homogenizing machine and carries out homogeneous, high-shear homogenizing machine revolving speed
15000rpm, homogenizing time 5min；
(3) infusion: the infusion under slight boiling condition of the complete apple pulp of homogeneous sufficiently decomposes the protopectin in apple pomace,
The infusion time is 30min, and it is 32.6% that soluble solid content is measured after infusion；
(4) be sieved: the apple pulp after infusion crosses 20 meshes, removes bulky grain.
3, concentrated strawberry juice is added in above-mentioned apple pulp, continues to keep slight boiling condition, until soluble solid content
Greater than 50%, mixed serum is obtained；
4, the resulting slurries of step 3 are evenly coated on glass panel, with a thickness of 0.5cm, using the method for heated-air drying
It dries (73 DEG C, wind speed 2.8m/s, 1.7h), takes off film, cut, obtain strawberry fruit paper.This strawberry fruit paper moisture content is lower than 8%.
The preparation of 6 spinach paper of embodiment
Select it is fresh, it is stand-by without concentration spinach juice is made after rotten spinach cleaning without rotten.
The preparation of spinach paper the following steps are included:
1, supplementary material is prepared:
Supplementary material includes following component: 2 times of concentration spinach juices of 50kg and 50kg apple pomace.
2, apple pomace pre-processes:
(1) it is beaten: the drinking water of 3 times of weight being added in apple pomace, is beaten using beater, beater revolving speed
20000rpm, beating time 7min；
(2) homogeneous: apple pomace is homogenized using high-shear homogenizing machine and carries out homogeneous, high-shear homogenizing machine revolving speed
15000rpm, homogenizing time 3min；
(3) infusion: the infusion under slight boiling condition of the complete apple pulp of homogeneous sufficiently decomposes the protopectin in apple pomace,
The infusion time is 25min, and it is 33.5% that soluble solid content is measured after infusion；
(4) be sieved: the apple pulp after infusion crosses 20 meshes, removes bulky grain.
3, concentration spinach juice is added in above-mentioned apple pulp, continues to keep slight boiling condition, until soluble solid content
Greater than 50%, mixed serum is obtained；
4, the resulting slurries of step 3 are evenly coated on glass panel, with a thickness of 0.5cm, using the method for heated-air drying
It dries (70 DEG C, wind speed 3.0m/s, 2.0h), takes off film, cut, obtain spinach paper.This spinach paper moisture content is lower than 8%.
By the resulting fruit-vegetable paper of above-described embodiment 3~6, referring to GB/T6195-1986, " water fruits and vegetables Vitamin C content is surveyed
Determine method (2,6- dichloroindophenol titration) " Vitamin C content measurement is carried out, referring to GB/T5009.10-2003 " plant food
In coarse-fibred measurement " measurement that carries out content of cellulose, referring to GB/T15402-1994 " water fruits and vegetables and its product sodium, potassium
The measurement of content " potassium content measurement is carried out, magnesium, which is carried out, referring to GB/T5009.90-2003 " measurement of iron in food, magnesium, manganese " contains
It is fixed to measure, and carries out determination of calcium content referring to GB/T5009.92-2016 " measurement of Calcium In Food ", as a result as shown in the table, wherein
The content of each nutrient is the content of every 100g substance dry weight.
Several nutritive element content measurement results of table 3
It can be seen from the results above that several main nutrient elements of fruit-vegetable paper prepared by preparation process of the invention
Content retains preferably close to fresh fruit, especially dietary fiber and content of mineral substances, no greater loss.
Sensory evaluation is carried out to the fruit-vegetable paper of embodiment 3~6 according to the sensory evaluation criteria of table 4.There is sense organ by 20
The Majors of Food postgraduate of evaluation experience forms evaluation group, evaluation result remove best result and it is low most divide, be averaged.And
Sanitary index is detected referring to the requirement of " GB14884-2016 national food safety standard preserved fruit ".
4 subjective appreciation standard scale of table
5 sensory evaluation scores of table and sanitary index
| Group | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 |
| Sensory evaluation scores | 92 | 94 | 94 | 97 |
| Total plate count, cfu/g | ≤100 | ≤100 | ≤100 | ≤100 |
| Coliform, MPN/100g | ≤3 | ≤3 | ≤3 | ≤3 |
As can be seen that fruit-vegetable paper good film-forming property prepared by preparation process of the invention, completely takes off film and is easy, surfacing
More smooth, uniform color is able to maintain primary colors, the original flavor of fresh fruit of vegetables, is suitable for various people, can satisfy people to snacks
It is required that.Fruit-vegetable paper sanitary index of the invention meets national requirements, and the shelf-life was up to 12 months.
It is understood that fruit-vegetable paper prepared by method of the present invention can be met not by control water content
Same demand obtains the product of different hardness, brittleness by control degree of drying.On the one hand, which can be direct
It is edible, allow its mouthfeel to be soft glutinous by changing water content, can also be crisp；On the other hand, which can wrap up
In other food outer surfaces, such as package biscuit, energy stick etc., so as to improve with the mouthfeel of enriching other foods, enriched nutritive
The supplement of element.Fruit-vegetable paper prepared by method of the present invention may be two or more fruit syrup and/or vegetable
The compounding of vegetable juice.
Above description is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair
Bright patent claim, it is all the present invention suggested by technical spirit under completed same changes or modifications change, should all belong to
In the covered the scope of the patents of the present invention.
Claims (13)
1. apple pomace is in preparing fruit-vegetable paper as the purposes of auxiliary material, which is characterized in that the apple pomace is used for as binder
Form fruit-vegetable paper.
2. purposes according to claim 1, which is characterized in that for making fruit after the apple residue mashing and infusion processing
The molding of vegetable paper.
3. purposes according to claim 2, which is characterized in that the infusion time is 20~30min.
4. a kind of method for preparing fruit-vegetable paper using apple pomace, comprising the following steps:
(1) prepare supplementary material: raw material is inspissated juice or vegetable juice, and auxiliary material is apple pomace；
(2) apple pomace pre-processes:
Mashing: it takes apple pomace that water is added to be beaten, obtains apple pulp；
Infusion: by apple pulp infusion under slight boiling condition；
(3) it deploys: inspissated juice or vegetable juice being added in the apple pulp after above-mentioned infusion, mixed serum is obtained；
(4) form: by resulting mixed serum film on filming medium, drying is to get fruit-vegetable paper.
5. according to the method described in claim 4, it is characterized in that, the raw material in the step (1) is by weight percentage
30~60% inspissated juice or vegetable juice, the apple pomace that auxiliary material is 30~60%.
6. according to the method described in claim 4, it is characterized in that, apple pomace uses the quality of water with mashing in the step (2)
Than for 1:(2~4), beating time is 5~8min.
7. according to the method described in claim 4, it is characterized in that, the infusion time is 20~30min in the step (2).
8. according to the method described in claim 4, drying temperature is it is characterized in that, using heated-air drying in the step (4)
70~75 DEG C, wind speed is 2~3m/s, and drying time is 1.5~2 hours.
9. according to the method described in claim 4, it is characterized in that, further including carrying out homogeneous to apple pulp in the step (2)
And/or the step of sieving processing.
10. according to the method described in claim 4, it is characterized in that, further including addition depickling decoloration apple in the step (3)
The step of juice is seasoned, wherein the additive amount of the depickling decoloration cider is 5~15%.
11. according to fruit-vegetable paper prepared by method described in claim 4~10 any one.
12. a kind of fruit-vegetable paper, which is characterized in that the fruit-vegetable paper 100% is prepared by fruit and vegetable materials.
13. fruit-vegetable paper according to claim 12, which is characterized in that the fruit-vegetable paper by by weight percentage 30~
60% inspissated juice and/or vegetable juice and 30~60% apple pomace are prepared.
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| CN114847456A (en) * | 2022-05-17 | 2022-08-05 | 浙江大学宁波“五位一体”校区教育发展中心 | Flat peach fruit and vegetable paper and preparation method thereof |
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