CN102813155A - Processing method of boiled lotus root - Google Patents
Processing method of boiled lotus root Download PDFInfo
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- CN102813155A CN102813155A CN201210317851XA CN201210317851A CN102813155A CN 102813155 A CN102813155 A CN 102813155A CN 201210317851X A CN201210317851X A CN 201210317851XA CN 201210317851 A CN201210317851 A CN 201210317851A CN 102813155 A CN102813155 A CN 102813155A
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Abstract
The invention discloses a processing method of lotus root, in particular to a processing method of boiled lotus root and belongs to the technical field of food processing. The boiled lotus root is made by subjecting salted lotus root to desalting, bleaching, pre-boiling, cooling, pH adjustment, desulfuration, semi-finished product detection, bagging, primary light detection, metal detection, sterilizing, secondary light detection, and finished product detection. The processing method of the boiled lotus root is simple. The boiled lotus root is easy to produce. The produced boiled lotus root is nutrient, convenient to eat, good in taste and safe and sanitary with high added value.
Description
Technical field
The invention discloses a kind of processing method of lotus rhizome, be specifically related to a kind of processing method of boiled lotus root, belong to food processing technology field.
Background technology
Lotus root is claimed lotus rhizome again, belongs to nymphaeaceae plant, the rhizome of lotus.Lotus root is little sweet and crisp, and composition mainly is starch, protein, asparagine, vitamin C etc., and its nature and flavor are sweet, has the effect of heat-clearing, cool blood, the diffusing stasis of blood, invigorating the spleen, appetizing, beneficial blood, myogenic, antidiarrheal, relieving restlessness, detoxifcation, is the natural health-care products of integration of drinking and medicinal herbs.But fresh lotus rhizome, value-added content of product is low, and the holding time is short, can't long-distance transportation.
Summary of the invention
Technical problem to be solved by this invention provides a kind of processing method of boiled lotus root, and processing technology of the present invention is simple, manufactures easily, and the boiled lotus root that makes is nutritious, instant, mouthfeel are good, safety and sanitation, and added value of product is high.
For solving the problems of the technologies described above, the processing method of boiled lotus root of the present invention may further comprise the steps:
(1) desalination, bleaching: the salted lotus root raw material is dropped in the tank, fill with clear water after the drop halogen, raw material is fully under the immersed in liquid level, and every water that changed at a distance from 1-2 hour is once tasted till the no saline taste to mouth; Salt takes off in the tank of most back fills with bleaching liquid, and bleaching 7-8h is white to product color;
(2) precook, cooling, impurity elimination: will bleach good lotus rhizome and pull out, drop in the stainless steel jacketed pan, and inject bleaching liquid and make lotus rhizome immerse liquid fully, be warming up to 85-90 ℃, and keep being bright milky to product color in 3-7 minute; Precook and accomplish back injection water purification rapidly, flowing water is cooled to normal temperature; The product that is cooled to room temperature is removed foreign matter through the hair impurity removing machine;
(3) pH adjustment, desulfurization, semi-finished product detect: the product that will remove foreign matter drops in the pH value adjustment liquid; Carry out the adjustment of pH value and carry out desulfurization simultaneously; Every pH value adjustment liquid that changed at a distance from 2-3 hour one time, changing the liquid number of times is 2-6 time, said pH adjustment liquid is concentration 0.15-0.2% lemon aqueous acid; The product that will pass through pH adjustment, desulfurization processing carries out pH and SO
2Content detection, pH is 3.6-4.2, SO
2Content is certified products less than 30ppm;
(4) pack: will detect qualified products and pack in the vacuum polybag, and add packing liquid in the bag, the use vacuum sealer vacuumizes, seals;
(5) lamp inspection just, metal detection, sterilization: the vacuum polybag product that will be packaged with lotus rhizome is positioned over inspection sack sealing, foreign matter situation under the lamp inspection desk; Metal is detected with metal detector in the qualified back of initial survey; To pass through the qualified product of metal detector detection and move in the sterilization tank, and be warming up to 75-78 ℃, constant temperature kept 40-45 minute; Product after the sterilization moves to rapidly and carries out the flowing water cooling in the cooling water, makes product temperature reduce to normal temperature fast;
(6) multiple lamp inspection, finished product detection: the vacuum polybag product that is packaged with lotus rhizome that is cooled to normal temperature after the sterilization is positioned over inspection sack sealing, foreign matter situation under the lamp inspection desk; Product after the multiple lamp inspection is carried out physics and chemistry and microbiological analysis, wherein pH value 3.8-4.2, SO
2Content≤25ppm, microorganism detection total number of bacteria＜10/g, coliform are negative and are qualified finished product.
PH value 3.0-4.0, the SO of salted lotus root described in the step (1)
2Residual quantity≤30ppm.
Bleaching liquid is the aqueous solution that contains sodium sulfite, sodium phosphate trimer, EDTA-2Na described in the step (1), and wherein the mass percentage concentration of sodium sulfite, sodium phosphate trimer, EDTA-2Na is respectively 0.1-0.2%, 0.05-0.1%, 0.02-0.04%.
Bleaching liquid is the aqueous solution that contains sodium sulfite, calgon described in the step (1), and wherein the mass percentage concentration of sodium sulfite, calgon is respectively 0.1-0.2%, 0.05-0.1%.
Step (4) in the package solution containing vitamin C, sodium dihydrogen phosphate, gluconic acid - 〥 - lactone solution, wherein the vitamin C, sodium dihydrogen phosphate, gluconic acid - 〥 - lactone mass percent concentration 0.05-0.1%, respectively, 0.03 to 0.05% 0.3 - 0.5%.
Step (4) in the package solution containing vitamin C, sodium hexametaphosphate, gluconic acid - 〥 - lactone solution, wherein the vitamin C, sodium hexametaphosphate, gluconic acid - 〥 - lactone mass percent concentration 0.05-0.1%, respectively, 0.05 to 0.1% 0.3 to 0.5%.
The present invention has following beneficial effect: the first, and adopt salted lotus root as raw material, through clear water desalination, bleaching liquid bleaching, the liquid of precooking in the pre-cooking process afterwards also is bleaching liquid, increases the whiteness of lotus rhizome self; Flowing water cooling fast promotes the crisp sense of product after precooking.The second, adopt citric acid to kill enzyme, preserved the nutritive value of lotus rhizome well, prolonged the freshness date of product; Carry out the pH adjustment simultaneously, make the product that makes have good mouthfeel.The 3rd, check problem is strict, guarantees product quality, safety and sanitation.Through to salted lotus root raw material, semi-finished product detection, finished product detection, realize pH, SO
2The whole process monitoring of content; Lamp inspection just, multiple lamp inspection, metal detection are maintained strict control over gate of the quality monitoring; Product is carried out sterilization processing, safety and sanitation.The 4th, add vitamin C in the packing liquid, product color is good, has increased the nutritive value of product; Calgon in the packing liquid can effectively suppress ascorbic decomposition.The 5th, the present invention has improved the mouthfeel of lotus root product, has prolonged the open date of lotus root product, is convenient to transportation and preservation, has improved value-added content of product.The 6th, instant, but the product instant bagged that makes also can be done to eat after the further processed.
The specific embodiment
Embodiment 1
A kind of processing method of boiled lotus root may further comprise the steps:
(1) desalination, bleaching: the salted lotus root raw material is dropped in the tank, fill with clear water after the drop halogen, raw material under the immersed in liquid level, must not be appeared fully; Changed water desalination once in every separated 1-2 hour, till mouth is tasted no saline taste; Salt takes off to be filled with bleaching liquid bleaching 7-8h and is white to product color in the tank of most back; Bleaching liquid is the aqueous solution that contains sodium sulfite, sodium phosphate trimer, EDTA-2Na, and wherein the mass percentage concentration of sodium sulfite, sodium phosphate trimer, EDTA-2Na is respectively 0.1-0.2%, 0.05-0.1%, 0.02-0.04%;
(2) precook, cool off: will bleach good lotus rhizome and pull out; Drop in the stainless steel jacketed pan, inject bleaching liquid and make lotus rhizome immerse liquid fully, be warming up to 85-90 ℃ and keep 3-7 minute observation color and luster to be bright milky; Wherein lotus root section, thick lotus root sheet, lotus root piece kept 5-7 minute; Thin lotus root sheet kept 3-5 minute, and thick lotus root sheet is that thickness is the above lotus root sheet of 6cm, and thin lotus root sheet is that thickness is the lotus root sheet of 2-3cm; Precook and accomplish back injection water purification rapidly, flowing water is cooled to normal temperature; The product that is cooled to room temperature is removed foreign matter through the hair impurity removing machine;
(3) pH adjustment, desulfurization, semi-finished product detect: the product that will remove foreign matter drops in the lemon aqueous acid of mass percentage concentration 0.15-0.2%; Carry out the adjustment of pH value and carry out desulfurization simultaneously, changed the lemon aqueous acid one time in every separated 2-3 hour, wherein the lotus root section is 5-6 time; Thick lotus root sheet, lotus root piece 3-4 time; Lotus root thin slice 2-3 time, thick lotus root sheet are that thickness is the above lotus root sheet of 6cm, and thin lotus root sheet is that thickness is the lotus root sheet of 2-3cm; The product that will pass through pH adjustment, desulfurization processing carries out pH and SO
2Content detection, pH is 3.6-4.2, SO
2Content is certified products less than 30ppm;
(4) bagging: the semi-finished products tested and loaded into a vacuum bag, the bag added packaging solution, using a vacuum sealer vacuum, sealing, said packaging solution containing vitamin C, sodium dihydrogen phosphate, gluconate - 〥 - lactone solution, wherein the vitamin C, sodium dihydrogen phosphate, gluconic acid - 〥 - lactone mass percent concentration of 0.05-0.1%, 0.03 to 0.05% 0.3 - 0.5%;
(5) lamp inspection just, metal detection, sterilization: the product after will packing is positioned over inspection sack sealing, foreign matter situation under the lamp inspection desk; Metal is detected with metal detector in the qualified back of initial survey; To pass through the qualified product of metal detector detection and move in the sterilization tank, and be warming up to 75-78 ℃, constant temperature kept 40-45 minute; Product after the sterilization moves to rapidly and carries out the flowing water cooling in the cooling water, makes product temperature reduce to normal temperature fast;
(6) multiple lamp inspection, finished product detection: the product that will be cooled to normal temperature is positioned over inspection sack sealing, foreign matter situation under the lamp inspection desk; The qualified product of multiple lamp inspection is carried out physics and chemistry and microbiological analysis, wherein pH value 3.8-4.2, SO
2Content≤25ppm, microorganism detection total number of bacteria＜10/g, coliform are negative and are qualified finished product.
The 3.0-4.0 of the preferred pH value of salted lotus root described in the step (1), SO
2Residual quantity≤30ppm.
Embodiment 2
Different with embodiment 1 is, bleaching liquid is the aqueous solution that contains sodium sulfite, calgon, and wherein the mass percentage concentration of sodium sulfite, calgon is respectively 0.1-0.2%, 0.05-0.1%.
Embodiment 3
Example 1 is different packaging solution containing vitamin C, sodium hexametaphosphate, gluconic acid - 〥 - lactone solution, wherein the vitamin C, sodium hexametaphosphate, gluconic acid - 〥 - mass percent of lactone concentration of 0.05-0.1%, 0.05 to 0.1% 0.3 to 0.5%.
Embodiment 4
Different with embodiment 1 is, bleaching liquid is the aqueous solution that contains sodium sulfite, calgon, and wherein the mass percentage concentration of sodium sulfite, calgon is respectively 0.1-0.2%, 0.05-0.1%.Packaging solution containing vitamin C, sodium hexametaphosphate, gluconic acid - 〥 - lactone solution, wherein vitamin C, sodium hexametaphosphate, gluconic acid - 〥 - lactone mass percent concentration of 0.05-0.1%, 0.05-0.1% 0.3 - 0.5%.
Claims (6)
1. the processing method of a boiled lotus root is characterized in that, may further comprise the steps:
(1) desalination, bleaching: the salted lotus root raw material is dropped in the tank, fill with clear water after the drop halogen, raw material is fully under the immersed in liquid level, and every water that changed at a distance from 1-2 hour is once tasted till the no saline taste to mouth; Salt takes off in the tank of most back fills with bleaching liquid, and bleaching 7-8h is white to product color;
(2) precook, cooling, impurity elimination: will bleach good lotus rhizome and pull out, drop in the stainless steel jacketed pan, and inject bleaching liquid and make lotus rhizome immerse liquid fully, be warming up to 85-90 ℃, and keep being bright milky to product color in 3-7 minute; Precook and accomplish back injection water purification rapidly, flowing water is cooled to normal temperature; The product that is cooled to room temperature is removed foreign matter through the hair impurity removing machine;
(3) pH adjustment, desulfurization, semi-finished product detect: the product that will remove foreign matter drops in the pH value adjustment liquid; Carry out the adjustment of pH value and carry out desulfurization simultaneously; Every pH value adjustment liquid that changed at a distance from 2-3 hour one time, changing the liquid number of times is 2-6 time, said pH adjustment liquid is concentration 0.15-0.2% lemon aqueous acid; The product that will pass through pH adjustment, desulfurization processing carries out pH and SO
2Content detection, pH is 3.6-4.2, SO
2Content is certified products less than 30ppm;
(4) pack: will detect qualified products and pack in the vacuum polybag, and add packing liquid in the bag, the use vacuum sealer vacuumizes, seals;
(5) lamp inspection just, metal detection, sterilization: the vacuum polybag product that will be packaged with lotus rhizome is positioned over inspection sack sealing, foreign matter situation under the lamp inspection desk; Metal is detected with metal detector in the qualified back of initial survey; To pass through the qualified product of metal detector detection and move in the sterilization tank, and be warming up to 75-78 ℃, constant temperature kept 40-45 minute; Product after the sterilization moves to rapidly and carries out the flowing water cooling in the cooling water, makes product temperature reduce to normal temperature fast;
(6) multiple lamp inspection, finished product detection: the vacuum polybag product that is packaged with lotus rhizome that is cooled to normal temperature after the sterilization is positioned over inspection sack sealing, foreign matter situation under the lamp inspection desk; Product after the multiple lamp inspection is carried out physics and chemistry and microbiological analysis, wherein pH value 3.8-4.2, SO
2Content≤25ppm, microorganism detection total number of bacteria＜10/g, coliform are negative and are qualified finished product.
2. the processing method of salted lotus root according to claim 1 is characterized in that, pH value 3.0-4.0, the SO of salted lotus root described in the step (1)
2Residual quantity≤30ppm.
3. the processing method of salted lotus root according to claim 2; It is characterized in that; Bleaching liquid is the aqueous solution that contains sodium sulfite, sodium phosphate trimer, EDTA-2Na described in the step (1), and wherein the mass percentage concentration of sodium sulfite, sodium phosphate trimer, EDTA-2Na is respectively 0.1-0.2%, 0.05-0.1%, 0.02-0.04%.
4. the processing method of salted lotus root according to claim 2; It is characterized in that; Bleaching liquid is the aqueous solution that contains sodium sulfite, calgon described in the step (1), and wherein the mass percentage concentration of sodium sulfite, calgon is respectively 0.1-0.2%, 0.05-0.1%.
5? According to claim 3 or 4, wherein the method for processing salted lotus root, characterized in that step (4) in the package solution containing vitamin C, sodium dihydrogen phosphate, gluconic acid - 〥 - lactone aqueous solution, wherein the vitamin C, sodium dihydrogen phosphate, gluconic acid - 〥 - lactone mass percent concentration of 0.05-0.1%, 0.03 to 0.05% 0.3 - 0.5%.
6? According to claim 3 or 4, wherein the method for processing salted lotus root, characterized in that step (4) in the package solution containing vitamin C, sodium hexametaphosphate, gluconic acid - 〥 - lactone aqueous solution, wherein the vitamin C, sodium hexametaphosphate, gluconic acid - 〥 - lactone concentrations of 0.05-0.1 mass percent, 0.05% 0.1% 0.3 - 0.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210317851XA CN102813155A (en) | 2012-08-31 | 2012-08-31 | Processing method of boiled lotus root |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210317851XA CN102813155A (en) | 2012-08-31 | 2012-08-31 | Processing method of boiled lotus root |
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| CN102813155A true CN102813155A (en) | 2012-12-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107259446A (en) * | 2017-05-19 | 2017-10-20 | 佛山市秸和科技有限公司 | A kind of existing boiled lotus root technique |
| CN112273614A (en) * | 2020-10-15 | 2021-01-29 | 盐城恒辉食品有限公司 | Lotus root processing technology |
-
2012
- 2012-08-31 CN CN201210317851XA patent/CN102813155A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107259446A (en) * | 2017-05-19 | 2017-10-20 | 佛山市秸和科技有限公司 | A kind of existing boiled lotus root technique |
| CN112273614A (en) * | 2020-10-15 | 2021-01-29 | 盐城恒辉食品有限公司 | Lotus root processing technology |
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Application publication date: 20121212 |