Summary of the invention
In order to solve above technical problem, the invention provides a kind of method of many wheel salting zymolysis pickles, solving prior art medium salting fermentation period longer, content of nitrite is higher, the problem that content of lactic acid bacteria is low, improves local flavor and the mouthfeel of kimchi products, makes pickles health, being rich in nutrition value.
Solve the method for a kind of many wheel salting zymolysis pickles in the present invention of above technical problem, it is characterized in that: when vegetables salting zymolysis, after reaching certain acidity, carry out turning over pond, the vegetables of fermentation are made to be positioned at below, fresh vegetables and salt are added in top, and several wheel makes vegetables reach certain acidity finished product repeatedly.
In described fermentation process, several wheel number >=2 of taking turns are taken turns repeatedly.
In the present invention, prioritization scheme repeatedly several wheel number of taking turns is 3 to take turns, and specifically comprises the following steps:
(1) pond is filled: fresh vegetables and salt are filled salt marsh pond, and with the Mass Calculation of fresh vegetables, used salt amount is 15%; Now due to the osmosis of salt, dewatering vegetable, volume-diminished shared by vegetables in salt marsh pond; After vegetables shrink, that presses between vegetables is very real, and salt solution can not well permeate, and adopts vegetables and salt layering dress, can ensure fully contacting of salt and vegetables, the quality of guarantee dish and shelf-life.
(2) secondary charging: as vegetables acidity 0.35-0.45% in salt marsh pond, adds fresh vegetables and salt, Feng Chi above the vegetables that salt marsh has been crossed;
(3) turn over pond to feed in raw material: when in salt marsh pond, vegetables acidity reaches 0.55-0.65%, carry out turning over pond, the vegetables of fermenting are positioned at below, and fresh vegetables and salt are added in top, Feng Chi;
Turning over pond can adopt machinery to turn over pond, plays dish machine dish is translated into another from a pond with special pickles.After turning over pond, make it, various composition mixes.Lactobacillus-fermented is amphimicrobian, is mixed into partial oxidation after turning over pond, and the process that its oxygen is fermented from new startup, thus increases the fragrance of pickles.
(4) mature pickles pack: as vegetables acidity 0.95-1.05% in salt marsh pond, again turn over pond, gets the pickles pack of middle and lower part, pond maturation.
In the present invention, to get three-wheel be consider according to causes such as taste, local flavor and costs to form to fermentation wheel number, and 3 to take turns above effect relatively good from local flavor, but cost is higher.
When acidity reaches 0.35-0.45%, inside and outside salinity reaches balance substantially, and now salt marsh pond can utilize space to reach maximum, now for adding the best time of fresh vegetables and salt, this external acidity when 0.35-0.45%, lactic acid bacteria amount reproduction, fermenting speed is fast, and now acidity linearly rises.When acidity is 0.55-0.65%, now lactic acid bacteria amount reaches peak, adds the Rapid Fermentation that fresh vegetables is conducive to vegetables, and under high acid environment, vegetables easily preserve, and decrease salt dosage, improves the utilization rate in salt marsh pond.Carry out when acidity reaches 0.95-1.05% turning over pond, acidity now has reached the requirement manufactured a finished product, and after 0.95-1.05%, the acidity of pickles slowly rises, substantially balance is reached, turn over pond at this moment and meet the upper needs of production, saving salt Pooled resources makes next round pickles Rapid Fermentation under old pickles are cooked " introduction ".
In described secondary charging step, after in salt marsh pond, vegetables acidity reaches 0.4%, fresh vegetables and salt are added in top, Feng Chi; Describedly turn in the addition step of pond, after vegetables acidity reaches 0.6% in salt marsh pond, carry out turning over pond; In described finished product step, after in salt marsh pond, vegetables acidity reaches 1%, again carry out turning over pond.
Described fresh vegetables and salt fill Chi Shiwei " one deck salt one deck dish " mode.
With the gross mass of salt for calculating, first the salt of 5% is loaded at the bottom of pond, then layering filling fresh vegetables and salt, above vegetables, finally after pond to be filled, adding the salt of 15% again.First salt is loaded at the bottom of pond, have the effect of sterilization.
Described salt is face salt.
Also comprise in described method and step (4) Zhong Chi middle and upper part to have been fermented but underdone pickles take out and load bottom in another one pond, add zymotic fluid, then fermenting but adding fresh vegetables and salt above underdone pickles, constantly circulate; Or step (3) turn over pond reinforced in add zymotic fluid.
Described zymotic fluid addition is the 2-4% of total pond weight, the effect had in this concentration range.
Described zymotic fluid is that the vegetable fermentation liquid produced in step (1) to step (4) obtains through recycling again, and zymotic fluid is rich in lactic bacteria activity can reach 1*10
6cfu/g or more, acidity>=0.85%, amino nitrogen>=0.18g/100ml.
Fermentation liquor treatment mode is " active carbon → filtration → diatomite → filtration ", and with zymotic fluid total amount for calculating, wherein active carbon addition is advisable with 0.1-0.5%, and diatomite addition is that 0.1-0.5% is advisable.
The pickles turning over Shi Chi middle and upper part, pond are translated in new salt marsh pond, substitute dress pond step, namely from second time addition step, carry out next round salting zymolysis, constantly circulate.Using " introduction " of the pickles on top as next round fresh vegetables salting zymolysis, the inside is containing a large amount of lactic acid bacteria, be conducive to the Fast-propagation of the lactic acid bacteria of next round, make other miscellaneous bacterias less, ferment faster, inside and outside osmotic pressure more easily reaches balance, substantially increases the service efficiency in salt marsh pond, reaches the effect of Rapid Fermentation and shortening processing maturation period.And less with salt, product is more healthy and safe.
The pickles acidity made in the present invention and go out reaches 0.8%, and the raw taste of pickles, green vegetables become yellow from emerald green, smell and have the fragrance that significantly ferments.
Beneficial effect of the present invention shows:
A, present invention reduces salting zymolysis cycle 3-6 month of vegetable raw-material, thus decrease the content of product nitrite, more healthy green.
B, the present invention are because salt content is lower relative to conventional art in flow process, and more meet the growing environment of lactic acid bacteria, content of lactic acid bacteria is enriched, thus inhibits miscellaneous bacteria to generate, and improve product quality, nutritive value is higher, more meets the daily food custom of the people.
C, the present invention take turns salting zymolysis more, and make vegetables final dewatering in salting process more thorough, solid content is high, are conducive to forming a large amount of flavor components, improve product taste and mouthfeel.
It is less relative to conventional art that D, the present invention once add salt adding amount, and the phenomenon of dehydration suddenly can not occur vegetables, and salted vegetable is unfolded full, and profile is excellent.
Detailed description of the invention
In following examples, the assay method of acidity adopts direct titrimetric method:
Embodiment 1
(1) pond is filled: fresh vegetables and face salt are filled salt marsh pond according to the salt marsh technique of " one deck salt one deck dish ".With the gross mass of salt for calculating, first the salt of 5% is loaded at the bottom of pond, then layering filling fresh vegetables and salt, above vegetables, finally after pond to be filled, adding the salt of 15% again.Now due to the osmosis of salt, dewatering vegetable, volume-diminished shared by vegetables in salt marsh pond.
Start most under vegetables behind pond, come below salt is above difficult to penetrate into, increase the concentration of salt below, nethermost vegetables are dewatered faster, the while of space-saving, makes vegetables above deposit faster.Owing to can constantly produce the liquid after fermented vegetable in pond, salt below comes above being extracted into, and the dish salinity is like this higher, because above the relation of osmotic pressure, the salt solution of high concentration can permeate downwards gradually, be more conducive to the balance of whole pond salinity, vegetables do not allowed perishable.) then the salt of 80% is added uniformly while lower dish in vegetables (herein for workman is by experience Artificial Control, without concrete ratio) finally descended vegetables after, add the face salt of 2.25 tons on the whole, make vegetables concentration topmost the highest, utilize osmotic pressure to permeate gradually downwards.
(2) secondary charging: when in salt marsh pond, vegetables acidity reaches 0.4%, fresh vegetables and face salt add according to the salt marsh technique of " one deck salt one deck dish " by top, salt is added again afterwards above vegetables, circulating water treatment is carried out to salt marsh pond, Feng Chi with the zymotic fluid of fermentation last time after recycling;
(3) turn over pond to feed in raw material: when in salt marsh pond, vegetables acidity reaches 0.6%, carry out turning over pond, the vegetables of fermenting are positioned at below, fresh vegetables and face salt add according to the salt marsh technique of " one deck salt one deck dish " by top, salt is added again afterwards above vegetables, process with fermentation last time zymotic fluid 2% pair of salt marsh pond after recycling, Feng Chi; Zymotic fluid is rich in lactic bacteria activity can reach 1*10
6cfu/g or more, acidity>=0.85%, amino nitrogen>=0.18g/100ml.
(4) mature pickles are filled: after in salt marsh pond, vegetables acidity reaches 1%, get the ripe pickles in middle and lower part, pond and make product, concrete operations are for turning over pond, to be fermented in top but also immature pickles are translated in new salt marsh pond, when after 1/4 capacity installing to new pond, fermented in new pond but also enter in immature pickles 3% zymotic fluid, add fresh vegetables and salt above, in the mode of one deck vegetables one deck salt.
Fermentation liquor treatment mode is " active carbon → filtration → diatomite → filtration ", wherein active carbon addition is advisable with 0.2%, diatomite addition is 0.1% to be advisable, after absorption, can be 15% by initial salinity, light transmittance be 21.17% salt accumulated water, being processed into salinity is 13.59%, and light transmittance is the zymotic fluid of 75.24%.
During this implements, when acidity is 0.4% time, in pond, oxygen exhausts substantially, turns over pond and is beneficial to oxygen and fully mixes.After in salt marsh pond, vegetables acidity reaches 0.6%, lactobacter growth reaches peak, again turns over pond and adds the continuation growth that vegetables are beneficial to lactic acid bacteria, after vegetables acidity reaches 1% in salt marsh pond, lactobacillus-fermented metabolic process reaches peak, turn over pond rejoin vegetables be beneficial to its continue fermentation.
Embodiment 2
(1) pond is filled: fresh vegetables and face salt are filled salt marsh pond according to the salt marsh technique of " one deck salt one deck dish ", above vegetables, adds enough salt more afterwards, now due to the osmosis of salt, dewatering vegetable, volume-diminished shared by vegetables in salt marsh pond; With the gross mass of salt for calculating, first the salt of 4% is loaded at the bottom of pond, then layering filling fresh vegetables and salt, above vegetables, finally after pond to be filled, adding the salt of 16% again.
(2) secondary charging: when in salt marsh pond, vegetables acidity reaches 0.35%, fresh vegetables and face salt add according to the salt marsh technique of " one deck salt one deck dish " by top, enough salt is added again afterwards above vegetables, circulating water treatment is carried out to salt marsh pond, Feng Chi with the zymotic fluid of fermentation last time after recycling;
(3) turn over pond to feed in raw material: after in salt marsh pond, vegetables acidity reaches 0.55%, carry out turning over pond, the vegetables of fermenting are positioned at below, fresh vegetables and face salt add according to the salt marsh technique of " one deck salt one deck dish " by top, enough salt is added again afterwards above vegetables, circulating water treatment is carried out, Feng Chi with fermentation last time zymotic fluid 4% pair of salt marsh pond after recycling; Zymotic fluid is rich in lactic bacteria activity can reach 1*10
6cfu/g or more, acidity>=0.85%, amino nitrogen>=0.18g/100ml.
(4) finished product: after vegetables acidity reaches 0.95% in salt marsh pond, carries out turning over pond again, is translated into by the pickles on top in new salt marsh pond, and when after 1/4 capacity installing to new pond, product made by the remaining ripe pickles in portion of taking off.
Fermentation liquor treatment mode is " active carbon → filtration → diatomite → filtration ", and wherein active carbon addition is with 0.1%, and diatomite addition is 0.3%, and other content is as implemented 1.
Embodiment 3
(1) pond is filled: fresh vegetables and face salt are filled salt marsh pond according to the salt marsh technique of " one deck salt one deck dish ", above vegetables, adds enough salt more afterwards, now due to the osmosis of salt, dewatering vegetable, volume-diminished shared by vegetables in salt marsh pond; With the gross mass of salt for calculating, first the salt of 5% is loaded at the bottom of pond, then layering filling fresh vegetables and salt, above vegetables, finally after pond to be filled, adding the salt of 15% again.
(2) secondary charging: when in salt marsh pond, vegetables acidity reaches 0.45%, fresh vegetables and face salt add according to the salt marsh technique of " one deck salt one deck dish " by top, enough salt is added again afterwards above vegetables, circulating water treatment is carried out to salt marsh pond, Feng Chi with the zymotic fluid of fermentation last time after recycling;
(3) turn over pond to feed in raw material: after in salt marsh pond, vegetables acidity reaches 0.65%, carry out turning over pond, the vegetables of fermenting are positioned at below, and fresh vegetables and face salt add according to the salt marsh technique of " one deck salt one deck dish " by top, enough salt is added again afterwards, Feng Chi above vegetables;
(4) finished product: after vegetables acidity reaches 1.05% in salt marsh pond, carries out turning over pond again, is translated into by the pickles on top in new salt marsh pond, and when after 1/4 capacity installing to new pond, product made by the remaining ripe pickles in portion of taking off; Vegetables after using the only salting zymolysis one added in step (3) to take turns are as " introduction ", and next round salting zymolysis is carried out in new pond from step (2).
Fermentation liquor treatment mode is " active carbon → filtration → diatomite → filtration ", and wherein active carbon addition is with 0.5%, and diatomite addition is 0.5%, and other content is as implemented 1.
Embodiment 4
(1) pond is filled: fresh vegetables and face salt are filled salt marsh pond according to the salt marsh technique of " one deck salt one deck dish ", above vegetables, adds enough salt more afterwards, now due to the osmosis of salt, dewatering vegetable, volume-diminished shared by vegetables in salt marsh pond; With the gross mass of salt for calculating, first the salt of 6% is loaded at the bottom of pond, then layering filling fresh vegetables and salt, above vegetables, finally after pond to be filled, adding the salt of 14% again.
(2) secondary charging: when in salt marsh pond, vegetables acidity reaches 0.42%, fresh vegetables and face salt add according to the salt marsh technique of " one deck salt one deck dish " by top, enough salt is added again afterwards above vegetables, circulating water treatment is carried out to salt marsh pond, Feng Chi with the zymotic fluid of fermentation last time after recycling;
(3) turn over pond to feed in raw material: after in salt marsh pond, vegetables acidity reaches 0.58%, carry out turning over pond, the vegetables of fermenting are positioned at below, fresh vegetables and face salt add according to the salt marsh technique of " one deck salt one deck dish " by top, enough salt is added again afterwards above vegetables, circulating water treatment is carried out, Feng Chi with fermentation last time zymotic fluid 3% pair of salt marsh pond after recycling;
(4) mature pickles are filled: after in salt marsh pond, vegetables acidity reaches 1.02%, get the ripe pickles in middle and lower part, pond and make product, concrete operations are for turning over pond, to be fermented in top but also immature pickles are translated in new salt marsh pond, when after 1/4 capacity installing to new pond, fermented in new pond but also enter in immature pickles 3% zymotic fluid, add fresh vegetables and salt above, in the mode of one deck vegetables one deck salt.
Fermentation liquor treatment mode is " active carbon → filtration → diatomite → filtration ", and wherein active carbon addition is with 0.2%, and diatomite addition is 0.1%, and other content is as implemented 1.
Embodiment 5
Other content is the same with embodiment, reduces to turn over pond step in step (3), and zymotic fluid adds in secondary charging step equally.
Test one
Green vegetables: 100 tons of salt: 15 tons (4, two are not turned over pond, and two are turned over pond and take turns fermentation more)
Turn over pond control group employing and do not turn over pond, in two weeks afterwards, along with the continuous dehydration of vegetables is sunk, supplement fresh vegetables gradually, until fill 100 tons of vegetables.
Experimental group: translated into by the pickles above Lao Chi in new salt marsh pond, after installing to 1/4 of new pond, adds new raw material in pond to pond full (approximately can fill 60 tons of vegetables)
For the first time, the green vegetables of experimental group were fermentation about 30 days, and acidity reaches 0.40%.
Table 1
For the second time, the green vegetables of experimental group were fermentation about 50 days, and acidity reaches 0.65%, and the fermentation of many wheels is carried out turning over pond, and supplemented vegetables (supplementing about 20 tons of green vegetables).
Table 2
For the third time, the green vegetables of experimental group were fermentation about 75 days, and acidity reaches 1.0%, and the fermentation of many wheels is carried out turning over pond, and supplemented vegetables (supplementing about 20 tons of green vegetables).
Table 3
Test two
If control group, other content is identical with embodiment 1, does not add processed zymotic fluid in control group.Contrast with 20 days and 40 days, embodiment 1 and control group effect are as following table 1, table 2:
Table 4
Table 5
Test three
Other content is as embodiment 4, and control group establishes two-wheeled to ferment, and experimental group three-wheel ferments, and green vegetables ferment about 90 days, and net effect is as following table 6:
Table 6
As can be seen from the above, two take turns the effect of fermenting and green vegetables having been had, and better effect, three-wheel fermentation is better than two and takes turns fermentation.In sweat, two-wheeled fermentation green vegetables reached acidity 0.8% at about 85 days, and three-wheel fermentation green vegetables reached acidity 0.8% at about 60 days, and three-wheel fermentation more can be saved time, and local flavor is better; But two take turns fermentation costs will slightly lower than the cost of three-wheel fermentation.
Test four
Take green vegetables as raw material, if control group, other content is identical with embodiment 1, the saline solution adding same concentrations in control group contrasts, detect its salinity, total acid, nitrite situation of change, and salt base sense organ is evaluated, to determine that reclaiming salt marsh water by fermentation fresh vegetables prepares salted feasibility.
1. zymotic fluid compares with salt water stain dish salinity altercation situation, as shown in Figure 1.
2. reclaim the water stain dish of salt marsh to compare with salt water stain dish total acid situation of change, as shown in Figure 2.
3. reclaim the water stain dish of salt marsh to compare with salt water stain dish nitrite situation of change, as shown in Figure 3.
4. reclaim the water stain dish of salt marsh to compare with the water stain dish sensory evaluation of salt, as shown in table 7 below.
Table 7 zymotic fluid stain dish compares with the water stain dish sensory evaluation of salt
From Fig. 1,2,3 substantially identical with the salinity altercation trend of the water stain dish of salt with the experimental result zymotic fluid stain dish of table 7, in salt marsh 120d, salinity is all down to about 6.3% from 15%; Total acid variation tendency slightly difference, reclaiming the initial total acid of salt accumulated water is 0.6%, therefore more easily starts lactic fermentation, in subsequent fermentations, shows slightly advantage; Nitrite aspect, reclaims salt accumulated water with the obvious advantage, show that nitrous peak occurs slightly early (during fermentation 40d), nitrous peak value lower (63mg/kg), and slightly evening (during fermentation 50d), nitrous peak value higher (98mg/kg) appears in salt water stain dish nitrous peak; Sensory evaluation aspect, reclaim the water stain famished look pool of salt marsh, flavour, brittleness steep green vegetables closer to maturation, ferment local-flavor is dense, and the water stain dish of salt is more aobvious jerky, and to steep green vegetables gap larger with maturation.
Comprehensive above experimental result is determined, zymotic fluid stain dish is comparatively eaten salted, and salting zymolysis starts sooner, more active, and while ensureing salted quality, production efficiency is improved.
The analysis of the influence factor that zymotic fluid adsorption treatment is main:
The main influence factor of zymotic fluid adsorption treatment is active carbon and diatomaceous addition, makes a concrete analysis of as follows.
1, active carbon addition is on the impact of fermentation liquor treatment effect
Diatomite addition, as embodiment 1, is fixed on 0.2% by other content, changes active carbon addition (0.1%, 0.2%, 0.3%, 0.4%, 0.5%), with salt accumulated water light transmittance and salinity for evaluation index, determines the active carbon addition be suitable for.Experimental result as shown in Figure 4,5.
From Fig. 4,5 result, when diatomite addition is fixed, the addition of active carbon is larger to Effects of Salinity, initial salinity is the zymotic fluid of 15%, active carbon addition is 0 when being incremented to 0.5%, when its salinity is down to 9.5% from 15%, loses more, but when addition is 0 ~ 0.2%, salinity loss is more slow; When the addition of active carbon is incremented to 0.1% from 0, zymotic fluid light transmittance increases to 51% from 21%, and increasing degree is very large, addition from 0.1% ~ 0.2 time, light transmittance increases to 65% from 51%, increasing option, and when being added to 0.2% ~ 0.5%, light transmittance change is little.Therefore, active carbon has considerable influence to zymotic fluid salinity, for ensureing less salt loss and good impurity-eliminating effect, and the consideration of cost aspect, the active carbon addition of 0.2% is comparatively suitable.
2, diatomite addition is on the impact of fermentation liquor treatment effect
Active carbon addition is fixed on 0.2% by this experiment, changes diatomite addition (0.1%, 0.2%, 0.3%, 0.4%, 0.5%), with zymotic fluid light transmittance and salinity for evaluation index, determines the diatomite addition be suitable for.Experimental result as shown in Figure 6,7.
From Fig. 6,7 result, when active carbon addition is fixed, diatomaceous addition is little to Effects of Salinity, initial salinity is the zymotic fluid of 15%, after the adsorption filtration of active carbon, salinity is 13.84%, when diatomite addition is incremented to 0.5% from 0.1%, zymotic fluid salinity from 13.84 only % be down to 13.45%; And diatomaceous addition has considerable influence to zymotic fluid light transmittance, initial light transmission is the salt accumulated water of 21.17%, after the adsorption filtration of active carbon, light transmittance is 65.12%, when diatomite addition is incremented to 0.1% from 0, zymotic fluid light transmittance increases to 75.54% from 65.12%, and when addition is 0.1% ~ 0.5%, light transmittance change is little.Therefore, diatomaceous addition 0.1% is advisable.
The pickles satisfaction investigation produced in the present invention:
Investigate in 300 people, together with pickles are boiled with fish, or taste separately, have 290 people to think features good taste, uniqueness, 5 people think good, and 3 people think general, and 2 people not think and like.