CN104624291A

CN104624291A - Low-temperature organic flour processing method

Info

Publication number: CN104624291A
Application number: CN201410737255.6A
Authority: CN
Inventors: 孟景华
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-12-05
Filing date: 2014-12-05
Publication date: 2015-05-20

Abstract

The invention discloses a low-temperature organic flour processing method. The low-temperature organic flour processing method comprises the three processing steps of checking unprocessed grains, cleaning the unprocessed grains and pulverizing the unprocessed grains; the process of checking the unprocessed grains comprises the sub-step of carrying out conventional check and activity check on the unprocessed grains; the process of cleaning the unprocessed grains comprises the sub-step of removing impurities in the qualified unprocessed grains by using common screening equipment and a special colour selector for wheat; and the process of pulverizing the unprocessed grains comprises the sub-step of grinding and pulverizing the unprocessed grains without impurities in a low-temperature production environment, and finally, packaging prepared flour by using a freshness protection bag. The whole course of the flour processing technology is carried out at low temperature; and furthermore, wheat is prevented from being grinded excessively by extending the length of a flour grinding path, and therefore, the reserving ratio of nutritional ingredients of wheat and the reserving ratio of original wheat flavour of wheat flour are greatly increased.

Description

A kind of low temperature process method of organic flour

Technical field

The invention belongs to foodstuff processing technology field, be specifically related to a kind of low temperature process method of organic flour.

Background technology

In the processing of existing organic flour, process of lapping due to flouring technology mill diagram short, in process of lapping, grind great efforts, create overmastication, thus produce the high temperature original nutritional labeling of wheat; Meanwhile, in process, to produce temperature too high for equipment, the considerable damage nutritional labeling of wheat.

Summary of the invention

The object of this invention is to provide a kind of low temperature process method of organic flour, to solve in existing flour processing process, because equipment generation temperature is too high, destroy the problem of wheat nutritional labeling.

The technical solution adopted in the present invention is, a kind of low temperature process method of organic flour, comprises powder process three processing steps of the inspection of raw grain, the cleaning of raw grain and raw grain;

The inspection process of raw grain: comprise the routine inspection to raw grain and activity assay;

The cleaning technology of raw grain: to the raw grain be up to the standards, carries out impurity cleaning by conventional screening installation and the special color selector of wheat to it;

The flouring technology of raw grain: under the production environment of low temperature, carries out grinding flour to the raw grain after removal of contamination, is finally packed by obtained flour freshness protection package.

Feature of the present invention is also,

To the concrete grammar of the activity assay of raw grain be:

Get 2 parts, wheat raw grain sample, every part comprises 50 wheats, first 2 portions of wheats are placed on two wet towels respectively, put while towel is rolled together with wheat, keep every day towel moistening, humidity remains on 60%-70%, after 7 days, the germination percentage of wheat is greater than 85%, then judge that the activity assay of this wheat is qualified.

The cleaning technology of raw grain, in order to remove various impurity, specifically carries out according to following steps successively: clear → magnetic separation → screen at the beginning of carrying out raw grain → wash wheat de-stone → magnetic separation → → de-stone → selected → look choosing of threshing wheat.

The concrete grammar of flouring technology is, under the production environment of low temperature, to the raw grain after cleaning successively through grinding → wheat flour detacher → wheat flour purifier → screen, and finally obtained flour.

The temperature range of low temperature is 25 °-30 °.

Grinding technics is that 5B8M2S2T is to extend the length of grinding mill diagram.

The invention has the beneficial effects as follows, fluor producing process whole process ensures low temperature environment, and by extending the length of grinding mill diagram, avoid the overmastication to wheat, the retaining ratio to wheat nutritional labeling substantially increased and the retaining ratio to the original wheat fragrance of wheat flour.

Detailed description of the invention

Below in conjunction with drawings and Examples, the present invention is described in detail.

The invention provides a kind of low temperature process method of organic flour, specifically implement according to following steps:

Step 1, crude raw grain to be tested

When raw grain is checked, successively routine inspection and activity assay are carried out to raw grain.

The main contents of the routine inspection of raw grain are: 1, unit weight is at more than 770g/L, 2, unsound grain is within 6.0%; 3, impurity ratio is less than 1.0%; 4, moisture content is less than 12.5%.

To the activity of wheat specific operation process of testing be, get wheat samples 2 parts, 50 every part, first 2 portions of wheats are placed on two wet towels respectively, put while towel is rolled, keep every day towel moistening, humidity remains on 60%-70%, judge wheat level of activity according to wheat germination rate after 7 days, the sample of germination percentage more than 85% is qualified samples, can ensure that the nutritional labeling of processing rear wheat is retained.

Step 2, impurity cleaning is carried out to the raw grain be up to the standards through step 1, remove various impurity, ensure to be up to state standards into mill wheat impurity content;

Step 2.1, just clear: the wheat be up to the standards to be carried out just clear, just clear mainly will containing impurity cleaning more bulky than wheat in wheat;

Step 2.2, magnetic separation: to through the cleaned wheat of step 2.1, utilize the suction of magnet to clear up the irony impurity contained in wheat,

Step 2.3, screen: screen is carried out to the wheat after clearing up through step 2.2, removes the impurity less than wheat proportion;

Step 2.4, wash wheat de-stone: the wheat after step 2.3 is cleaned is entered wheat washer and cleans, wash the dust impurity of wheat epidermis, remove the stone identical with wheat volume size according to wheat with the proportion difference of stone simultaneously;

Step 2.5, magnetic separation: the wheat cleaned to step 2.4 carries out the screening of removing irony again, to ensure wheat purity;

Step 2.6, threshing wheat: wheat is through washing wheat, and the volume of wheat is soft to some extent, now threshes wheat, the impurity of wheat ventral groove being got rid of and plays cleaning;

Step 2.7, de-stone: the wheat again de-stone cleaning cleaned to step 2.6;

Step 2.8, selected: the impurity such as grass-seed that is that exist in the wheat cleaned to step 2.7 and wheat formed objects are cleared up;

Step 2.9, look select: adopt wheat special color selector to carry out look choosing to the raw grain after selected, the separate unit processing flow of the special color selector of wheat is 10 tons/hour, for ensureing the purity of wheat, reduce processing flow, be down to 5 tons/hour, two special color selectors of wheat can be adopted to carry out clearing up, look choosing.

Step 3, under the production environment of low temperature, namely temperature is 25 °-30 °, powder process processing is carried out to the raw grain cleared up through step 2, step 3.1, grinding: in the process of grinding, cooling process is carried out to grinder, and select grinding technics to be the grinding of 5B8M2S2T, its technique carries out five grindings to cortex, reduces the degree to cortex overmastication in prior art, air-conditioning temperature-reducing is carried out to flour mill workshop simultaneously, avoid the destruction of repetition high temperature grinding to nutritional labeling;

Step 3.2, wheat flour detacher: effect is assisted milling, unclamping the powder sheet formed due to smooth roll extruding, for loosening and broken material, is effectively supplementing of flour mill abrasive action.

Step 3.3, wheat flour purifier: wheat flour purifier utilizes the aerial floating velocity of mixed material different, to carry out classification by the synergy of sieve nest and vibration by mixed material.Because cortex is different with the proportion of endosperm, floating velocity is also different.The proportion of cortex is little, floating velocity is little and the ratio of endosperm is great, floating velocity is large.Enter granular size in the mixed material of wheat flour purifier close, but the ratio of cortex in particle is different.Floating velocity containing the few material particles of cortex is little, and the floating velocity of pure endosperm particle is large.Thus the compass screen surface of certain sieve aperture is utilized, pass into the air-flow of certain speed from bottom to top, under the effect of sieve nest vibration, material particles forms automatic classification on compass screen surface, forms approximate layering, thinner pure endosperm grain is at the orlop of material, and first contact surface first becomes screenings; Larger pure endosperm grain takes second place, and rear contact compass screen surface becomes back segment screenings, and become secondary piecemeal by the sequencing quality of material through compass screen surface, granularity becomes large piecemeal; The larger adhesive bran powder grain more containing wheat skin and pure wheat skin small pieces low because of floating velocity, though granularity is less than sieve aperture, can not sieve aperture be passed, by ascending air support, finally become oversize discharge or siphoned away by air-flow.

Step 3.4, screen: material is often after one flour mill, namely palpus screen once, remove because the mixture (having wheat bran, wheat slag, the wheat heart and flour) obtained after grinding, and go out qualified flour from 1M screen, again unclassified stores is divided into wheat bran, wheat slag and the wheat heart by granular size, to send into different flour mill, wheat flour purifier processes.

Step 4, employing freshness protection package are packed the flour obtained through step 3 powder process, avoid packing with original woven bag causing and contacting external air, thus remain vitamin and the mineral matter of wheat, the protein that plumule is rich in, fat, mineral matter, vitamin, reach the object of natural nutrition, natural health, namely obtain organic flour of the present invention.

Whole flouring technology carries out under the production environment of low temperature, omnidistance low-temperature circulating wind conveying mainly adopts the cooperation of central air-conditioning and blower fan to realize, and by grinding the lengthening of mill diagram and reaching temperature production to the cooling of grinding shop, ensure the nutritional labeling retention of wheat flour and the reservation of wheat flour wheat fragrance.

Analyze by experiment, obtain the nutrient composition content contrast table of the organic flour that long patent flour and the present invention obtain, see the following form.

Contrast as can be seen from upper table, method of the present invention is by carrying out sorting to wheat, reach 100% pure, the omnidistance low temperature of powder process process, overcome chemical change and physical change that wheat produces in High Temperature And Velocity process to the destruction of wheat nutrition, the content of its nutritional labeling is obviously better than the content of long patent flour Middle nutrition composition, remain the vitamin and mineral matter that are rich on wheat top layer, the protein that plumule is rich in, fat, mineral matter, vitamin, the flour produced is genuine, natural nutrition, natural health.

Claims

1. a low temperature process method for organic flour, is characterized in that, comprises powder process three processing steps of the inspection of raw grain, the cleaning of raw grain and raw grain;

The inspection process of described raw grain: comprise the routine inspection to raw grain and activity assay;

The cleaning technology of described raw grain: to the raw grain be up to the standards, carries out impurity cleaning by conventional screening installation and the special color selector of wheat to it;

The flouring technology of described raw grain: under the production environment of low temperature, carries out grinding flour to the raw grain after removal of contamination, is finally packed by obtained flour freshness protection package.

2. the low temperature process method of a kind of organic flour as claimed in claim 1, is characterized in that, the concrete grammar of the described activity assay to raw grain is:

3. the low temperature process method of a kind of organic flour as claimed in claim 1 or 2, it is characterized in that, the cleaning technology of described raw grain, in order to remove various impurity, specifically carries out according to following steps successively: clear → magnetic separation → screen at the beginning of carrying out raw grain → wash wheat de-stone → magnetic separation → → de-stone → selected → look choosing of threshing wheat.

4. the low temperature process method of a kind of organic flour as claimed in claim 1 or 2, it is characterized in that, the concrete grammar of described flouring technology is, under the production environment of low temperature, to the raw grain after cleaning successively through grinding → wheat flour detacher → wheat flour purifier → screen, finally obtained flour.

5. the low temperature process method of a kind of organic flour as claimed in claim 4, is characterized in that, the temperature range of described low temperature is 25 °-30 °.

6. the low temperature process method of a kind of organic flour as claimed in claim 4, is characterized in that, described grinding technics is that 5B8M2S2T is to extend the length of grinding mill diagram.