CN110269091A - A kind of Chinese toon bud freezing preservation technique - Google Patents

A kind of Chinese toon bud freezing preservation technique Download PDF

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Publication number
CN110269091A
CN110269091A CN201810207555.1A CN201810207555A CN110269091A CN 110269091 A CN110269091 A CN 110269091A CN 201810207555 A CN201810207555 A CN 201810207555A CN 110269091 A CN110269091 A CN 110269091A
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CN
China
Prior art keywords
chinese toon
blanching
water
quick
raw material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
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CN201810207555.1A
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Chinese (zh)
Inventor
杨龙棠
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Anhui Que Red Ecological Agriculture Development Co Ltd
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Anhui Que Red Ecological Agriculture Development Co Ltd
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Application filed by Anhui Que Red Ecological Agriculture Development Co Ltd filed Critical Anhui Que Red Ecological Agriculture Development Co Ltd
Priority to CN201810207555.1A priority Critical patent/CN110269091A/en
Publication of CN110269091A publication Critical patent/CN110269091A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23BPRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00Preservation or chemical ripening of fruit or vegetables
    • A23B7/005Preserving by heating
    • A23B7/0053Preserving by heating by direct or indirect contact with heating gases or liquids
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23BPRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00Preservation or chemical ripening of fruit or vegetables
    • A23B7/04Freezing; Subsequent thawing; Cooling
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23BPRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00Preservation or chemical ripening of fruit or vegetables
    • A23B7/04Freezing; Subsequent thawing; Cooling
    • A23B7/0441Treatment other than blanching preparatory to freezing
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23VINDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2002/00Food compositions, function of food ingredients or processes for food or foodstuffs

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Storage Of Fruits Or Vegetables (AREA)
  • Preparation Of Fruits And Vegetables (AREA)

Abstract

The present invention provides a kind of Chinese toon bud freezing preservation technique, it is the following steps are included: (1) chooses raw material and impurity elimination sorts;(2) it impregnates;(3) blanching;(4) cooling;(5) cure process;(6) envelope is drained;(7) quick-frozen forming;(8) constant temperature is cold deposits, and processing technology of the invention is used to carry out quick-freezing fresh-keeping processing to fresh and tender Chinese toon stalk leaf, and the original nutrition of Chinese toon is enable to save from damage;And it is quick-frozen after pack, moisture, fragrance volatilizing are few, carry out constant-temperature preserving under smaller temperature difference environment after quick freezing forming, are able to maintain its original form and nutrition, delicious and crisp mouthfeel, color is light green, and the shelf-life was up to 2 years or more.

Description

A kind of Chinese toon bud freezing preservation technique
Technical field
The present invention relates to a kind of freezing preservation techniques, more particularly to a kind of Chinese toon bud freezing preservation technique.
Background technique
Chinese toon bud is called Chinese toon head, Chinese toon, Chinese toon point, and referred to as " vegetables on tree " are even more " green food ".Annual spring After Clear and Bright before grain rains, both Chinese toon bud can do various dish to the tender shoots of Chinese toon tree hair.It is not only full of nutrition, and medicine with higher With value, containing volatile aromatics organic matters such as toonins, can spleen benefiting and stimulating the appetite, increase appetite.Chinese toon has clearing heat and promoting diuresis, diuresis The effect of removing toxic substances, be assist in the treatment of enteritis, dysentery, urinary system infection contamination good medicine.It contains vitamin E and sex hormone substance, Energy anti-aging and yang-tonifying nourishing yin effect, have certain curative effect to infertility, therefore have the laudatory title of " gestogen ".Chinese toon contains chinaberry Element, Volatilized smell can penetrate the epidermis of roundworm, roundworm prevented to be excreted from being attached in intestinal wall.Chinese Toon Leaves thickness bud is tender, The red side of greenery, like agate, emerald, aromatic flavour is full of nutrition to be much higher than other vegetables, is suitble to various people edible.
The collecting period of Chinese toon is short, fresh and tender perishable, places at normal temperature 2-3 days, either freshness, flavor or quality be all It will be greatly reduced, almost lost distinctive edible value less than one week.Chinese toon is due to adopting rear respiratory intensity big, fugitive color, easily Lignifying to storage transport, sale, processes in addition the seasonality of production, region are strong and brings great difficulty, therefore is a kind of The good quick-frozen technique of Chinese toon bud is most important.
Summary of the invention
Technical problem to be solved by the present invention lies in a kind of Chinese toon bud antistaling process is provided, i.e., a kind of Chinese toon bud freezing is protected Fresh technique.
The technical problems to be solved by the invention solve above-mentioned technical problem using following technical scheme: a kind of Chinese toon Bud freezing preservation technique, which is characterized in that includes following steps:
(1) raw material and impurity elimination is chosen to sort: it is raw materials used for the Ching Ming Festival front and back Chinese toon tender shoots of leaf stalk one picked, it is whole Length is between 12-15cm, and the collecting period 30 days or so, raw material color was red tender, and delicious and crisp is strong fragrant, then will be macroscopic dirty Object and impurity removal, while rejecting pest and disease damage part, foreign matter or defective products in raw material;
(2) it impregnates: Chinese toon bud being carried out in fermentation vat immersion 1~2 hour, remove the foul of Chinese toon bud surface adhesion, impregnate Water temperature in pond is 40~50 degrees Celsius;
(3) blanching: by the hot water of the stock dispersion after cleaning to 80~100C, sodium bicarbonate is added in blanching water, makes to float Scalding water ph value is 7.2-7.5, and blanching water and Chinese toon weight ratio are greater than 3:1, and through stirring 3~90S of blanching, the purpose of blanching is to make Color is by red greening, and the length of time is depending on the temperature of hot water used: it is hot then short, otherwise extend.If blanching overlong time, Yellowish leaf stalk can be made to soften, and time too short blanching purpose can not achieve;
(4) cooling: the Chinese toon bud after blanching being stirred to cooling in the cold water of 0~10C, is carried out continuously twice, to thoroughly cool down After pull out;Cooling purpose is that the raw material after making blanching carries out fixation, if cannot cool down rapidly in time after blanching, leaf stalk will Turn yellow, perception is poor.Cooling purpose twice be even more be to keep cooling more thorough, when stirring cold purpose be also for enable Chinese toon with Cold water comes into full contact with, and can cool down rapidly;
(5) cure process: impregnating 1-2 hours in 0.6-1.0% calcium chloride, obtains pretreatment Chinese toon bud;
(6) it drains envelope: pretreatment Chinese toon being rinsed with clear water, then drain away the water pack;
(7) quick-frozen forming: in -40~-30 DEG C of quick-frozen 2~5min after sealing, until raw material shapes in bag;
(8) constant temperature is cold deposits: bagged articles after quick-frozen forming are deposited in -20~-18C constant temperature is cold.
The positive effect of the present invention is: compared with prior art, acquired technological progress is the present invention: Chinese toon obstructs leaf Whole processing, it is quick-frozen it is preceding carry out nature color protection treatment through blanching and cooling process, only carried out using hot water and cold water, without The hyperchromic additive for adding any chemical component enables the original nutrition of Chinese toon to save from damage;And quick-frozen after pack, water Point, fragrance volatilizing it is few, quick freezing forming after constant-temperature preserving is carried out under smaller temperature difference environment, be able to maintain its original form and Nutrition, delicious and crisp mouthfeel, color is light green, and the shelf-life was up to 2 years or more.Processing technology of the invention is used for fresh and tender Chinese toon Obstruct leaf and carries out quick-freezing fresh-keeping processing.
Specific embodiment
Technical solution of the present invention is further described in detail With reference to embodiment.
A kind of Chinese toon bud freezing preservation technique, comprises the following sequential steps:
(1) raw material and impurity elimination is chosen to sort: it is raw materials used for the Ching Ming Festival front and back Chinese toon tender shoots of leaf stalk one picked, it is whole Length is between 12-15cm, and the collecting period 30 days or so, raw material color was red tender, and delicious and crisp is strong fragrant, then will be macroscopic dirty Object and impurity removal, while rejecting pest and disease damage part, foreign matter or defective products in raw material;
(2) it impregnates: Chinese toon bud being carried out in fermentation vat immersion 1~2 hour, remove the foul of Chinese toon bud surface adhesion, impregnate Water temperature in pond is 40~50 degrees Celsius;
(3) blanching: by the hot water of the stock dispersion after cleaning to 80~100C, sodium bicarbonate is added in blanching water, makes to float Scalding water ph value is 7.2-7.5, and blanching water and Chinese toon weight ratio are greater than 3:1, and through stirring 3~90S of blanching, the purpose of blanching is to make Color is by red greening, and the length of time is depending on the temperature of hot water used: it is hot then short, otherwise extend.If blanching overlong time, Yellowish leaf stalk can be made to soften, and time too short blanching purpose can not achieve;
(4) cooling: the Chinese toon bud after blanching being stirred to cooling in the cold water of 0~10C, is carried out continuously twice, to thoroughly cool down After pull out;Cooling purpose is that the raw material after making blanching carries out fixation, if cannot cool down rapidly in time after blanching, leaf stalk will Turn yellow, perception is poor.Cooling purpose twice be even more be to keep cooling more thorough, when stirring cold purpose be also for enable Chinese toon with Cold water comes into full contact with, and can cool down rapidly;
(5) cure process: impregnating 1-2 hours in 0.6-1.0% calcium chloride, obtains pretreatment Chinese toon bud;
(6) it drains envelope: pretreatment Chinese toon being rinsed with clear water, then drain away the water pack;
(7) quick-frozen forming: in -40~-30 DEG C of quick-frozen 2~5min after sealing, until raw material shapes in bag;
(8) constant temperature is cold deposits: bagged articles after quick-frozen forming are deposited in -20~-18C constant temperature is cold.
Particular embodiments described above, the technical issues of to solution of the invention, technical scheme and beneficial effects are carried out It is further described, it should be understood that above-described is only specific embodiments of the present invention, is not used to limit The system present invention, all within the spirits and principles of the present invention, any modification equivalent replacement, improvement for being made etc. should be included in In protection scope of the invention.

Claims (1)

1. a kind of Chinese toon bud freezing preservation technique, which comprises the following steps:
(1) raw material and impurity elimination is chosen to sort: it is raw materials used for the Ching Ming Festival front and back Chinese toon tender shoots of leaf stalk one picked, it is whole Length is between 12-15cm, and the collecting period 30 days or so, raw material color was red tender, and delicious and crisp is strong fragrant, then will be macroscopic dirty Object and impurity removal, while rejecting pest and disease damage part, foreign matter or defective products in raw material;
(2) it impregnates: Chinese toon bud being carried out in fermentation vat immersion 1~2 hour, remove the foul of Chinese toon bud surface adhesion, impregnate Water temperature in pond is 40~50 degrees Celsius;
(3) blanching: by the hot water of the stock dispersion after cleaning to 80~100C, sodium bicarbonate is added in blanching water, makes to float Scalding water ph value is 7.2-7.5, and blanching water and Chinese toon weight ratio are greater than 3:1, and through stirring 3~90S of blanching, the purpose of blanching is to make Color is by red greening, and the length of time is depending on the temperature of hot water used: it is hot then short, otherwise extend, and if blanching overlong time, Yellowish leaf stalk can be made to soften, and time too short blanching purpose can not achieve;
(4) cooling: the Chinese toon bud after blanching being stirred to cooling in the cold water of 0~10C, is carried out continuously twice, to thoroughly cool down After pull out;Cooling purpose is that the raw material after making blanching carries out fixation, if cannot cool down rapidly in time after blanching, leaf stalk will Turn yellow, perception is poor, cooling purpose twice be even more be to keep cooling more thorough, when stirring cold purpose be also for enable Chinese toon with Cold water comes into full contact with, and can cool down rapidly;
(5) cure process: impregnating 1-2 hours in 0.6-1.0% calcium chloride, obtains pretreatment Chinese toon bud;
(6) it drains envelope: pretreatment Chinese toon being rinsed with clear water, then drain away the water pack;
(7) quick-frozen forming: in -40~-30 DEG C of quick-frozen 2~5min after sealing, until raw material shapes in bag;
(8) constant temperature is cold deposits: bagged articles after quick-frozen forming are deposited in -20~-18C constant temperature is cold.
CN201810207555.1A 2018-03-15 2018-03-15 A kind of Chinese toon bud freezing preservation technique Pending CN110269091A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810207555.1A CN110269091A (en) 2018-03-15 2018-03-15 A kind of Chinese toon bud freezing preservation technique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810207555.1A CN110269091A (en) 2018-03-15 2018-03-15 A kind of Chinese toon bud freezing preservation technique

Publications (1)

Publication Number Publication Date
CN110269091A true CN110269091A (en) 2019-09-24

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Application Number Title Priority Date Filing Date
CN201810207555.1A Pending CN110269091A (en) 2018-03-15 2018-03-15 A kind of Chinese toon bud freezing preservation technique

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115363085A (en) * 2022-09-01 2022-11-22 济南市章丘区新型职业农民协会 Method for improving stability of natural color of Chinese toon sprouts in drying process and storage period

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115363085A (en) * 2022-09-01 2022-11-22 济南市章丘区新型职业农民协会 Method for improving stability of natural color of Chinese toon sprouts in drying process and storage period

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Application publication date: 20190924

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