CN109699964B - Processing method and processing tool for fresh red dates - Google Patents
Processing method and processing tool for fresh red dates Download PDFInfo
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- CN109699964B CN109699964B CN201910049604.8A CN201910049604A CN109699964B CN 109699964 B CN109699964 B CN 109699964B CN 201910049604 A CN201910049604 A CN 201910049604A CN 109699964 B CN109699964 B CN 109699964B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
Abstract
The invention discloses a processing method of fresh red dates, which selects the processed red dates as the red dates with the growth cycle of 4-5 months, and concretely comprises the following steps: selecting fruits, namely selecting fresh red dates with complete appearance, 50-75% of water content and 40-60% of sugar content; step two, processing, namely fixing the red dates, cutting off the top covers of the red dates, removing the pits and the pulp by using a special pit removing tool, and preparing a thin shell with a date peel; step three, drying; drying the processed fructus Jujubae and the top cover at 50-70 deg.C for 24-60 hr to obtain dried fructus Jujubae shell with water content of 10-25%; and step four, sterilizing, adding a drying agent, sealing and packaging. The dry red date shell prepared by the processing method of the fresh red dates has good appearance and proper sweetness, can be used as a wrapping object for processing byproducts, and is convenient for storing the dry red date shell.
Description
[ technical field ]
The invention belongs to the technical field of food processing methods, and particularly relates to a whole fruit processing method of fresh red dates and a processing tool thereof.
[ background art ]
With the continuous progress of science and technology and the diversification of food eating by people, the processing technology of food is more and more diverse day by day, the current red date has various processing types, such as jujube slices, candied jujubes, jujube sandwich series, red date tea and the like, the processing methods comprise slicing, splitting, stoning, cooking and drying, and the processing methods also have product combinations, so that the processing types are various, and in the current processing technology of agricultural product types, the red dates are in all products, and the processing technology diversity is in the front row, so the processing mode diversity is seen. Certainly, from another aspect, the universality of the eating population of the red dates is also illustrated, and the red dates are undoubtedly used as main materials whether the red dates take the taste or are directly eaten.
In the red date processing technology, the complete and smooth appearance of red dates is damaged by any processing method, wherein the appearance damage of a red date sandwich series is the minimum, but the processing and preparation technology still cannot avoid damaging the outer surface from the appearance integrity, and the reason is that the product does not require the processing technology to keep the integrity of the outer surface of the red dates and the existing processing technology cannot meet the requirement of keeping the integral and complete appearance of the red dates, so that the yield after processing is influenced.
[ summary of the invention ]
The invention provides a new processing technology for solving the pain of the traditional processing, better keeps the complete appearance of red dates, meets the requirement of consumers on red date products with high-quality appearance, and simultaneously provides a tool for processing the red dates.
A processing method of fresh red dates adopts a special stainless steel processing tool, and simultaneously selects the processed red dates as the red dates with the growth cycle of 4-5 months, and the method specifically comprises the following steps:
selecting fruits, namely selecting fresh red dates with complete appearance, 50-75% of water content and 40-60% of sugar content.
And step two, processing, namely fixing the red dates, cutting off the top cover of the red dates, removing kernels and pulps by using a tool, and preparing the thin shells with the date peels.
Step three, drying; drying the processed fructus Jujubae and the top cover at 50-70 deg.C for 24-60 hr or drying in freeze drying equipment until dry fructus Jujubae shell with water content of 10-25% is obtained.
And step four, sterilizing, adding a drying agent, sealing and packaging.
Wherein, in the second step, the position for cutting off the top cover of the red dates is 2-5mm downwards from the top of the red dates.
Wherein, in the second step, the wall thickness of the thin-shell jujube peel with jujube peel is 1.5-3 mm.
Wherein, a cleaning and grading step is also carried out before the step two, and the cleaned fresh red dates are graded by a machine.
The invention provides a processing tool for fresh red dates, in particular to the processing tool used in the second step in the red date processing method, the tool is a long hollow round tube made of stainless steel materials, the tool comprises a clamping part at one end of the round tube, a kernel discharging groove is arranged in the middle of the round tube, and a kernel separating blade is arranged at the end part at the other end of the round tube and is in a sawtooth shape and used for separating kernels; the tool also comprises two or more than two barb-shaped pulp separation blades which are uniformly distributed on the periphery of the circular tube, the pulp separation blades and the circular tube are integrally in an anchor shape, pulp separation teeth are arranged on the pulp separation blades and used for removing red date pulp, and the pulp separation blades are arranged between the kernel discharge groove and the sawtooth-shaped blades;
the nuclear discharging groove is a groove, the length of the groove is 30-60mm, and a through cavity is formed after the stainless steel circular tube is partially removed.
The angle of the blade edge on the pulp separation blade is inclined forward by 10-15 degrees, the diameter in the hollow round tube is 8-15mm, and the diameter of the circular motion of the pulp separation blade is 20-35 mm.
The dry red jujube shells prepared by the processing method of the fresh red jujubes have good appearance and proper sweetness, can be used as a wrapper for processing byproducts, and meanwhile, the processing mode is convenient for storing the dry red jujube shells. On the other hand provides the instrument of this red date of processing, and this instrument can be complete get rid of the red date nuclear, and is better to the appearance integrity of red date preserve, can also get rid of pulp simultaneously, and convenient simple to use.
[ description of the drawings ]
FIG. 1 is a schematic flow chart of a processing method of fresh red dates according to the present invention;
FIG. 2 is a cross-sectional view of a processing tool for fresh red dates according to the present invention;
FIG. 3 is a left side view of the processing tool for fresh red dates of the present invention;
FIG. 4 is a front view of a processing tool for fresh red dates according to the present invention;
FIG. 5 is an enlarged view of the flesh separating blade of the processing tool for fresh red dates of the present invention;
FIG. 6 is a schematic view of a processing tool profile for fresh red dates in accordance with the present invention;
wherein, 1 is a kernel-meat separation blade, 2 is a clamping part, 3 is a pulp separation blade, and 4 is a kernel arranging groove.
[ detailed description of the invention ]
In order to make the technical means for implementing the invention clear, the following embodiments further illustrate the invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
First, for better comparison with the background art, the fresh red dates in the state of the present invention will now be described, and the several ripeness levels of red dates will be described first, and the red dates are divided into a white ripeness stage, a crisp ripeness stage and a full ripeness stage, the white ripeness stage: harvesting the processed candied jujubes from 8 months to 9 months at the white ripe stage, wherein the crisp ripe stage is from the middle of 9 months to the upper of 10 months, the fresh food or the prepared wine is harvested at the crisp ripe stage in the late 9 months, the prepared wine is harvested at the mature stage in the upper 10 months, and the red jujubes can be harvested in batches according to different purposes when harvested.
The flowering period of the red dates is 4-5 months, the brittle stage of the red dates is 8-9 months, and the picking period is only 15-30 days even if illumination, soil, regions, planting years and the like are considered.
The fresh red dates required by the invention are the red dates in the crisp stage with the growth cycle of 4-5 months, and picking is stopped until the skins of the red dates have folds, because the folded red dates do not meet the appearance and processing requirements of products. The red dates in the crispy stage are selected because the peel of the red dates gradually turns red to be completely red, the peel of the red dates is colored by 60-100%, the sugar content reaches more than 70% of the complete stage, the pulp color turns from light green to green white, the peel thickens and becomes hard, the pulp of the red dates is crispy, the sugar content is moderate, the water content is high, and the rotten dates caused by the fact that the ripe and tetanus can be prevented while good flavor is kept after processing.
More importantly, the fresh jujubes at the time are most easily processed in the invention, because the invention needs the shape of the fresh jujubes which are not damaged completely, the fresh jujubes picked at the time can completely meet the processing requirements, in the aspect of the processing success rate, if compared with the processing of the dried red jujubes, the damage rate can reach more than 95 percent when the dried red jujubes are processed, and because the sugar content is high and the viscosity is too high, the drill bit can be stuck, the drill bit can rotate together with the red jujubes once being drilled, the smooth processing can not be realized at all, even if the finished products are processed, the products which meet the appearance requirements can not be obtained completely, in addition, if the fresh red jujubes in the invention are processed by using the existing tools on the market, the product requirements can not be met, the more important processing efficiency is extremely low, which is a fundamental difference between the invention and the invention of processing and preparation of the red jujujubes in the past, the invention selects the time for picking the fresh jujujubes, determines whether the whole fresh jujube processing finished product is successful.
In order to compare the qualified conditions of finished products processed at various stages of red dates, the processing conditions of first-grade and Tianjun red dates in the white stage, the crisp stage, the full stage and the dried red dates are tested, and the processing parameters of the products are compared as follows:
| first-class jun jujube 500 | White stage of ripening | Stage of crunchiness | At the end of the maturity period | Dried jun date |
| Number of breakages | 166 | 13 | 86 | 478 |
| Number of finished products | 334 | 487 | 414 | 22 |
| Percentage of finished product | 66.8％ | 97.4％ | 82.8％ | 4.4％ |
As can be seen from the above table, the crispness stage processing is the best stage from the number of finished products alone, and is certainly better if the sugar content is again based on the aesthetic requirements of the finished product appearance.
Example 1
As shown in figure 1, the processing method of the fresh red dates provided by the invention,
(1) the method comprises the following steps of selecting fresh red date fruits without mildew, rot, insect damage, damage or abnormal shapes, selecting first-grade jun dates in the embodiment, wherein the jun dates have the water content of 50-75% and the sugar content of 40-60%, and the red dates are preferably picked just in full red, because the skins of the red dates are gradually tough and tough, the sugar content is insufficient, the skins have no deformation, the smooth and wrinkle-free appearance of the completely fresh dates is still maintained, the processing is easy, and the red dates are cleaned after being picked;
(2) classifying the cleaned fresh red dates by a machine into a special grade, a first grade, a second grade, a third grade, a fourth grade and a fifth grade; meanwhile, the step of cleaning can be carried out;
(3) then processing the red dates, and comprising the following steps:
a. wrapping and clamping the red dates by using a soft clamp, and longitudinally removing the cover of the red dates from the top to the position 2-5mm downwards, wherein the red dates are required to be flat and smooth;
b. removing the cover of fructus Jujubae, removing core with special tool, wherein the diameter of core is 1cm-1.5cm, and the specific diameter can be determined according to the grade of fructus Jujubae;
c. after removing the core, using a special tool of a stainless steel drill to rotationally process and hollow out the pulp of the red dates, and processing the red dates into thin-shell dates with date peel and thickness of 1.5mm-3 mm;
d. washing the processed red dates with clear water, and washing away crushed jujube pulp inside;
e. drying red dates at 50-70 ℃ for 24-60 hours until dry red date shells with the water content of 10-25% are obtained, keeping the appearance attractive, being smooth and not wrinkled after drying, not deforming date covers, then performing combined disinfection and sterilization, putting a drying agent after manual inspection, sealing and packaging, and warehousing, wherein the quality guarantee period can reach 12-24 months.
The drying method can also be as follows: and d, after the step d, placing the red dates to be dried into a freeze-drying device for freeze-drying to obtain dry red date shells, so that the good and attractive appearance of the product is ensured.
The dried red date shell can be used as processed product of red date, and can be used as wrapping material for making non-staple food such as jujube tea and jujube dumpling. Beautiful appearance, good appearance and rich use of the jujubes.
Example 2
On the other hand, the invention provides a processing tool for processing the fresh red dates, as shown in fig. 2-6, the tool is a long hollow round tube made of stainless steel materials, and comprises a clamping part 2 at one end of the round tube, a kernel arranging groove 4 is arranged in the middle of the round tube, the kernel arranging groove 4 is a groove, the length s of the groove is 30-60mm, and a through cavity is formed after the stainless steel round tube is partially removed.
The processing tools used by red dates with different sizes are different in size, but the diameter of a stainless steel pipe is larger than that of a date pit and a margin is reserved so as to avoid the problem that the red dates are difficult to rotate due to the fact that the date pit is clamped in the processing process, the diameter of the stainless steel pipe is 1.0cm-1.5cm, the diameter of the stainless steel pipe is determined according to the size of fresh red dates, the drill bit part of the stainless steel pipe is provided with saw teeth of a nuclear and meat separation blade 1 and is in a saw-tooth shape, cutting force is generated during rotation, the processing is easy, a pair of pulp separation blades are welded at the upward 5-8mm position of the nuclear and meat separation blade 1, pulp separation blades are provided with pulp separation teeth, pulp separation teeth are conveniently used for separating pulp of the red dates, the maximum outer diameter r is 20-35mm after the pulp separation blades 3 are welded, the size is suitable for the size of the red dates, the pulp separation blades 3 are provided with saw teeth and slightly inclined, the angle alpha of the blade edge on the pulp separation blade 3 is forward 10-15 degrees, the rotation direction of the drill bit is the same as the orientation of the pulp separation teeth, the core discharge groove 4 with the length of 3-6cm is arranged from the middle part to the upper part, two thirds of the core discharge groove is cut off, the purpose is to easily take out jujube cores after processing, the upper part of the stainless steel tube is used as a chuck clamping position, or a connector is welded according to the size range of the clamping diameter of a common chuck, if the chuck part exceeds the size of the common chuck, an adapter is needed, and the outer diameter of the clamping size is 1.0cm-1.5 cm. In the processing without damaging the appearance of a fresh jujube product, the processing method is not available at present, the processing modes of the original sandwich jujube, crisp jujube and jujube slices are completely different, the crisp jujube is only denucleated, and the appearance of the jujube is damaged by processing the above Chinese dates according to the conventional processing modes.
When the device is used, after the cover of the fresh jujube is cut off, the device is drilled deeply into the device by a stainless steel pipe to rotate for one-time forming, the jujube pit is denucleated by a pit discharging groove 4, meanwhile, because the fresh jujube has thin two ends and thick middle, in order to solve the problem, after the stainless steel pipe drill is drilled deeply into the device, the pulp part with redundant thickness in the middle of the fresh jujube can be removed by controlling the radius of the rotating circumference of the whole electric drill according to the size of the red jujube, a clamping part is clamped by a common electric drill, the clamping diameter of a clamping head is 1.0mm-15mm, the torque is 0-28N.M, the rotating speed is adjustable, the voltage is 12-24V, the rated voltage is 220V, the rotating speed is 350-1650/min, and the frequency is 50/60 HZ.
The processing tool of the embodiment can be used for processing the jujube of the embodiment 1, has good processing effect and convenient use, greatly improves the success rate of making the dried jujube shells, enriches the types of jujube products, and has good economic and social benefits.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (7)
1. A processing method of fresh red dates is characterized in that a stainless steel processing tool is adopted, and the processed red dates are selected as the fresh red dates with a growth cycle of 4-5 months, and the method specifically comprises the following steps:
selecting fruits, namely selecting fresh red dates with complete appearance, 50-75% of water content and 40-60% of sugar content;
fixing the red dates, cutting off the top covers of the red dates, removing the cores and the pulps by using a stainless steel processing tool, and preparing thin shells with date peels; the stainless steel processing tool is a long hollow round tube made of stainless steel materials, and comprises a clamping part at one end of the round tube, a nucleus discharging groove is arranged in the middle of the round tube, and a nucleus and meat separating blade is arranged at the end part at the other end of the round tube and is in a sawtooth shape and used for nucleus and meat separation; the tool also comprises two or more than two barb-shaped pulp separation blades which are uniformly distributed on the periphery of the circular tube and used for separating the pulp of the jujube, wherein the diameter of the pulp separation blades doing circular motion is 20-35mm, the pulp separation blades are integrally in an anchor shape with the circular tube, inclined sawteeth are arranged on the pulp separation blades, the angle alpha of the blade edge on each pulp separation blade is forward inclined by 10-15 degrees and used for removing the pulp of the red jujube, and the pulp separation blades are arranged between the nucleus discharge groove and the nucleus pulp separation blades; step three, drying; drying the processed fructus Jujubae and the top cover at 50-70 deg.C for 24-60 hr to obtain dried fructus Jujubae shell with water content of 10-25%;
and step four, sterilizing, adding a drying agent, sealing and packaging.
2. The processing method of fresh red dates according to claim 1, wherein in the second step, the top cover of the red dates is cut at a position 2-5mm below the top of the red dates.
3. The processing method of fresh red dates according to claim 1, wherein in the second step, the wall thickness of the thin-shell date skin with date skin is 1.5-3 mm.
4. The processing method of fresh red dates according to claim 1, wherein a washing step and a grading step are further performed before the second step, and the washed fresh red dates are graded through a machine.
5. A processing tool for fresh red dates is characterized in that the processing tool is used in the second step in claim 1, is a long hollow round tube made of stainless steel materials, and comprises a clamping part at one end of the round tube, a kernel discharging groove is formed in the middle of the round tube, and a kernel and meat separating blade is arranged at the end part of the other end of the round tube and is in a sawtooth shape and used for separating kernel and meat; the tool also comprises two or more than two barb-shaped pulp separation blades which are uniformly distributed on the periphery of the circular tube, are integrally in an anchor shape with the circular tube, are provided with sawteeth for removing red date pulp and are arranged between the kernel discharge groove and the kernel-meat separation blades.
6. The processing tool for fresh red dates as set forth in claim 5, wherein the coring grooves are grooves having a length of 30-60mm and are formed by partially removing through-cavities through stainless steel circular tubes.
7. The processing tool of fresh red dates as claimed in claim 5, wherein the angle of the blade edge on the flesh separating blade is inclined forward by 10-15 °, the diameter in the hollow round tube is 8-15mm, and the diameter of the flesh separating blade doing circular motion is 20-35 mm.
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