CN106666521A - Dried oilseed rape and processing method thereof - Google Patents

Dried oilseed rape and processing method thereof Download PDF

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Publication number
CN106666521A
CN106666521A CN201611153145.0A CN201611153145A CN106666521A CN 106666521 A CN106666521 A CN 106666521A CN 201611153145 A CN201611153145 A CN 201611153145A CN 106666521 A CN106666521 A CN 106666521A
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CN
China
Prior art keywords
tongue
brassica campestris
drying
processing method
oilseed rape
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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
Application number
CN201611153145.0A
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Chinese (zh)
Inventor
张雪梅
张玲
高飞虎
曾志红
李雪
敬廷桃
梁叶星
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Chongqing Academy of Agricultural Sciences
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Chongqing Academy of Agricultural Sciences
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Publication date
Application filed by Chongqing Academy of Agricultural Sciences filed Critical Chongqing Academy of Agricultural Sciences
Priority to CN201611153145.0A priority Critical patent/CN106666521A/en
Publication of CN106666521A publication Critical patent/CN106666521A/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
    • A23B7/02Dehydrating; Subsequent reconstitution
    • A23B7/0205Dehydrating; Subsequent reconstitution by contact of the material with fluids, e.g. drying gas or extracting liquids
    • 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

Abstract

The invention provides a dried oilseed rape and a processing method thereof. The method comprises the following steps: 1) blanching: taking the oilseed rape, putting into hot water and performing blanching treatment; 2) color-protecting: putting the blanched oilseed rape into a Na2SO3 aqueous solution, performing color-protecting treatment and then cleaning with clean water; and 3) drying with hot air: drying the oilseed rape with hot air in two stages, thereby acquiring an end product of the dried oilseed rape. According to the invention, the blanching and color-protecting treatment are performed before drying, so that the product can be prevented from browning in a drying process, the original color of the oilseed rape is extremely maintained, the microbial pollution in the later storage process is reduced and the corresponding organoleptic quality of the oilseed rape after re-watering is promoted. According to the invention, the raw materials need not be cut, so that the completeness of the oilseed rape tissues is maintained and the storage time is as long as about 8 months. The method provided by the invention is simple and convenient in operation, the process is easily controlled and the method is suitable for large-scale production of food manufacturers.

Description

A kind of drying Brassica campestris L tongue and its processing method
Technical field
The present invention relates to food processing technology field, more particularly to a kind of drying Brassica campestris L tongue and its processing method.
Background technology
Brassica campestris L tongue is the young stem and leaf of crucifer Brassica campestris L, and there is cultivation China various places.It is its sweet in the mouth, pungent, it is mild-natured, can live Blood dissipating blood stasis, sharp intestinal, hemostasis.Brassica campestris L tongue is not only in good taste as vegetable is eaten raw, and nutritious, rich in vitamin K, many Sugar, protein, a small amount of quercitrin etc., are a kind of very popular nuisanceless green vegetables.At present, Brassica campestris L tongue is mainly eating raw Based on, this obviously limit Brassica campestris L tongue processing development, if the Brassica campestris L tongue after harvesting is made into dry productss, ensure nutrition into Point and in the case that edible quality is good, its storage period can not only be extended, and the sales range of Brassica campestris L tongue can be expanded, with ten Divide important Social benefit and economic benefit.However, existing preparation method can cause the loss of some nutritional labelings in product, And then reduction product quality.
The content of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of drying Brassica campestris L tongue and its processing Method, for solving prior art in drying Brassica campestris L tongue production method it is improper, cause the nutrient component damages of product larger, produce The problems such as quality is relatively low.
For achieving the above object and other related purposes, first aspect present invention provides a kind of processing side of drying Brassica campestris L tongue Method, at least comprises the steps:
1) blanching:Taking Brassica campestris L tongue and being put in hot water carries out scalding treatment;
2) color retention:Brassica campestris L tongue after blanching is put into into Na2SO3Color retention is carried out in aqueous solution, then using clear water Rinsing;
3) hot air drying:In two stages hot air drying is carried out to Brassica campestris L tongue, the drying Brassica campestris L tongue finished product is obtained.
Further, step 1) in, during scalding treatment, hot water temperature is 95-98 DEG C.
Further, step 1) in, the blanching time is 8-10min.
Further, step 2) in, Na2SO3The mass concentration of aqueous solution is 0.05%-0.1%.
Further, step 2) in, Brassica campestris L tongue is put into Na2SO3After aqueous solution, 10-15min is stood.
Further, step 2) in, adopt the time that clear water is rinsed for 1min, Brassica campestris L tongue is drained after rinsing.
Further, step 3) in, the first stage adopts 70-80 DEG C of hot air drying 1-2h.
Further, step 3) in, the water content of first stage hot air drying to Brassica campestris L tongue is 20-25wt%.
Further, step 3) in, second stage adopts 50-60 DEG C of hot air drying 7-10h.
Further, step 3) in, the water content≤8wt% of second stage hot air drying to Brassica campestris L tongue.
Further, also including step 4) vacuum packaging:Drying Brassica campestris L tongue finished product is loaded after packaging bag, to packaging bag It is evacuated and hermetically sealed.
Second aspect present invention provides drying Brassica campestris L tongue obtained in said method.
As described above, a kind of drying Brassica campestris L tongue of the present invention and its processing method, have the advantages that:
(1) by scalding treatment technique, various enzymatic activitys that can be effectively in passivated oil tender flower stalk retain to greatest extent Brassica campestris L Tongue original color.Meanwhile, scalding treatment can remove the herbaceous taste of Brassica campestris L tongue.
(2) present invention carries out before it is dried blanching color retention, and product in dry run can be avoided brown stain to occur, reduces The pollution of microorganism and corresponding organoleptic quality after product rehydration is improved in later stage storage.
(3) present invention adopts two-part drying meanss, and for the previous period moisture is higher in Brassica campestris L tongue, quick using high temperature Lost moisture, reduces the loss of nutritional labeling in Brassica campestris L tongue, and back segment is slowly dried using low temperature, prevents the brown stain of Brassica campestris L tongue and battalion Foster component damages.
(4) present invention keeps the integrity of Brassica campestris L tongue tissue, its storage time to be up to without the need for carrying out cutting process to raw material 8 months or so.Obtained drying Brassica campestris L tongue of the invention carries, edible, storage is convenient, while easy to operate, controllable in technique, fits Preferably food enterprise large-scale production.
Specific embodiment
Embodiments of the present invention are illustrated below by way of specific instantiation, those skilled in the art can be by this specification Disclosed content understands easily other advantages and effect of the present invention.The present invention can also pass through concrete realities different in addition The mode of applying is carried out or applies, the every details in this specification can also based on different viewpoints with application, without departing from Various modifications and changes are carried out under the spirit of the present invention.
Embodiment 1
The preparation method of the drying Brassica campestris L tongue that the present embodiment is provided comprises the steps:
1) blanching:The Brassica campestris L tongue for choose fresh and tender, no disease and pests harm, having no mechanical damage is used as raw material, and size is basically identical, will Above-mentioned qualified Brassica campestris L tongue is cleaned, dewatering, and the Brassica campestris L tongue after dewatering is put into into blanching 10min in 95 DEG C of hot water;
2) color retention:Brassica campestris L tongue after blanching is immersed in into the Na that mass concentration is 0.05%2SO3(this is water-soluble for aqueous solution The temperature of liquid be room temperature) in, stand 15min, then using clear water rinsing 1min after drain;
3) hot air drying:In two stages hot air drying is carried out to Brassica campestris L tongue, the drying Brassica campestris L tongue finished product, this reality is obtained In applying example, the hot blast temperature that the first stage adopts is 70 DEG C, and hot-wind-drying time is 2h, and drying to Brassica campestris L tongue water content is 20wt% or so;The hot blast temperature that second stage is adopted is 50 DEG C, and hot-wind-drying time is 10h, is dried to Brassica campestris L tongue water content ≤ 8wt%, drying Brassica campestris L tongue finished product is loaded after packaging bag, and packaging bag is evacuated and hermetically sealed, normal temperature and pressure storage.Respectively Colourity L of product after detecting the product just produced and preserving 8 months*Value, reconstitution rate, chlorophyll content, content of microorganisms.
Testing result:Colourity L of the present embodiment product*It is 348.1% to be worth for 45.22, reconstitution rate, and chlorophyll content is 1.509mg/g, content of microorganisms 0.73 × 105CFU/g.Colourity L of product after preserving 8 months*It is worth and is for 35.72, reconstitution rate 291.1%, chlorophyll content is 1.009mg/g, content of microorganisms 1.1 × 105CFU/g, can just reach vegetable dry productss mark It is accurate.
Embodiment 2
The preparation method of the drying Brassica campestris L tongue that the present embodiment is provided comprises the steps:
1) blanching:The Brassica campestris L tongue for choose fresh and tender, no disease and pests harm, having no mechanical damage is used as raw material, and size is basically identical, will Above-mentioned qualified Brassica campestris L tongue is cleaned, dewatering, and the Brassica campestris L tongue after dewatering is put into into blanching 8min in 98 DEG C of hot water;
2) color retention:Brassica campestris L tongue after blanching is immersed in into the Na that mass concentration is 0.1%2SO3In aqueous solution, stand 10min, then using clear water rinsing 1min after drain;
3) hot air drying:In two stages hot air drying is carried out to Brassica campestris L tongue, the drying Brassica campestris L tongue finished product, this reality is obtained In applying example, the hot blast temperature that the first stage adopts is 80 DEG C, and hot-wind-drying time is 1h, and drying to Brassica campestris L tongue water content is 20wt% or so;The hot blast temperature that second stage is adopted is 60 DEG C, and hot-wind-drying time is 7h, and drying to Brassica campestris L tongue water content is 8wt% or so, drying Brassica campestris L tongue finished product is loaded after packaging bag, and packaging bag is evacuated and hermetically sealed, normal temperature and pressure storage.Point Colourity L of product after not detecting the product just produced and preserving 8 months*Value, reconstitution rate, chlorophyll content, content of microorganisms.
Testing result:Colourity L of the present embodiment product*It is 369.7% to be worth for 47.22, reconstitution rate, and chlorophyll content is 1.520mg/g, content of microorganisms 0.69 × 105CFU/g.Colourity L of product after preserving 8 months*It is worth and is for 37.98, reconstitution rate 309.7%, chlorophyll content is 1.120mg/g, content of microorganisms 1.06 × 105CFU/g, can just reach vegetable dry productss mark It is accurate.
In sum, the present invention carries out before it is dried blanch color retention, product in dry run can be avoided to occur brown Become, Brassica campestris L tongue original color is retained to greatest extent, reduce the pollution of microorganism and raising Brassica campestris L tongue in later stage storage Corresponding organoleptic quality after rehydration.The present invention keeps the integrity of Brassica campestris L tongue tissue without the need for carrying out cutting process to raw material, drying Brassica campestris L tongue can preserve long period, storage, instant.The inventive method is easy to operate, controllable in technique, is suitable for food enterprise The large-scale production of industry.
The principle and its effect of above-described embodiment only illustrative present invention, it is of the invention not for limiting.It is any ripe Know the personage of this technology all can carry out modifications and changes under the spirit and the scope without prejudice to the present invention to above-described embodiment.Cause This, such as those of ordinary skill in the art is complete with institute under technological thought without departing from disclosed spirit Into all equivalent modifications or change, should by the present invention claim be covered.

Claims (10)

1. a kind of processing method of drying Brassica campestris L tongue, it is characterised in that at least comprise the steps:
1) blanching:Taking Brassica campestris L tongue and being put in hot water carries out scalding treatment;
2) color retention:Brassica campestris L tongue after blanching is put into into Na2SO3Color retention is carried out in aqueous solution, is then floated using clear water Wash;
3) hot air drying:In two stages hot air drying is carried out to Brassica campestris L tongue, the drying Brassica campestris L tongue finished product is obtained.
2. the processing method of drying Brassica campestris L tongue according to claim 1, it is characterised in that:Step 1) in, during scalding treatment, Hot water temperature is 95-98 DEG C, and the blanching time is 8-10min.
3. the processing method of drying Brassica campestris L tongue according to claim 1, it is characterised in that:Step 2) in, Na2SO3Aqueous solution Mass concentration be 0.05%-0.1%.
4. the processing method of drying Brassica campestris L tongue according to claim 1, it is characterised in that:Step 2) in, tongue is put into Brassica campestris L Na2SO3After aqueous solution, 10-15min is stood;Adopt the time that clear water is rinsed for 1min, drain Brassica campestris L tongue after rinsing.
5. the processing method of drying Brassica campestris L tongue according to claim 1, it is characterised in that:Step 3) in, the first stage adopts With 70-80 DEG C of hot air drying 1-2h.
6. the processing method of drying Brassica campestris L tongue according to claim 1, it is characterised in that:Step 3) in, first stage heat It is 20-25wt% to air-dry the dry water content to Brassica campestris L tongue.
7. the processing method of drying Brassica campestris L tongue according to claim 1, it is characterised in that:Step 3) in, second stage is adopted With 50-60 DEG C of hot air drying 7-10h.
8. the processing method of drying Brassica campestris L tongue according to claim 1, it is characterised in that:Step 3) in, second stage heat Air-dry dry water content≤8wt% to Brassica campestris L tongue.
9. the processing method of drying Brassica campestris L tongue according to claim 1, it is characterised in that:Also include step 4) vacuum packet Dress:Drying Brassica campestris L tongue finished product is loaded after packaging bag, packaging bag is evacuated and hermetically sealed.
10. drying Brassica campestris L tongue obtained in the processing method according to any one of claim 1-9.
CN201611153145.0A 2016-12-14 2016-12-14 Dried oilseed rape and processing method thereof Pending CN106666521A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113040213A (en) * 2021-04-30 2021-06-29 齐鲁工业大学 Drying method of celery leaves with low energy consumption and high nutrient component retention degree
CN114451534A (en) * 2022-01-28 2022-05-10 湖南农业大学 Processing method for dry-making rape bolts by combining low-salt short-time fermentation pretreatment and dry steam steaming
CN114468034A (en) * 2022-01-26 2022-05-13 中国农业科学院油料作物研究所 Method for improving bioavailability of selenium in selenium-rich rape land

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1316200A (en) * 2001-03-16 2001-10-10 付登喜 Technology for producing dried flowering stalk vegetable
CN104996552A (en) * 2015-06-26 2015-10-28 扬州大学 Dried vegetable quality improving method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1316200A (en) * 2001-03-16 2001-10-10 付登喜 Technology for producing dried flowering stalk vegetable
CN104996552A (en) * 2015-06-26 2015-10-28 扬州大学 Dried vegetable quality improving method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
单扬: "《蔬菜实用加工技术(农产品加工类)》", 31 December 1998 *
陈夏娇,王巧敏主编: "《蔬菜加工新技术与营销》", 31 December 2012 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113040213A (en) * 2021-04-30 2021-06-29 齐鲁工业大学 Drying method of celery leaves with low energy consumption and high nutrient component retention degree
CN114468034A (en) * 2022-01-26 2022-05-13 中国农业科学院油料作物研究所 Method for improving bioavailability of selenium in selenium-rich rape land
CN114451534A (en) * 2022-01-28 2022-05-10 湖南农业大学 Processing method for dry-making rape bolts by combining low-salt short-time fermentation pretreatment and dry steam steaming

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