Preparation method of dried ripe jujubes

A production method and technology of dried jujube, applied in climate change adaptation, food science, etc., can solve the problems of reducing consumers' desire to buy, loss of nutritional components, dull appearance, etc., and achieve low cost, high nutritional content preservation, and wrinkled appearance little effect

Inactive Publication Date: 2019-04-12
孙建辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the dried dates on the market are mainly sliced ​​and dried after being washed, which can easily cause a large amount of nutrient loss and inconvenient processing, or be washed and dried directly to make dried whole dates, but the dried whole dates are seriously dehydrated. The taste is poor and the appearance is dull, which reduces consumers' desire to buy and affects sales

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of preparation method of cooked jujube, comprises the following steps:

[0023] (1) Screening: Screen out mature jujubes, and screen jujubes of the same level according to variety, maturity and size for use;

[0024] (2) Cleaning: The selected jujubes are cleaned by ultrasonic sterilization first, and then sprayed with pure water. The conditions of ultrasonic sterilization and cleaning are ultrasonic cleaning and ultraviolet light sterilization at 30°C for 60 minutes. The ultrasonic power is 500W, and the ultraviolet light The lamp power is 300W; the pure water spray cleaning time is 4min;

[0025] (3) Steaming: put the cleaned jujubes into -20°C for 5 minutes, and then steam the jujubes under the conditions of 0.15MPa and 125°C using a bamboo steamer made of Polygonatum odoratum;

[0026] (4) Sun-dried: the steamed jujubes are dried in sunlight under natural conditions to a moisture content of 14%;

[0027] (5) Packing: weigh and pack at room temperature, and ...

Embodiment 2

[0029] A kind of preparation method of cooked jujube, comprises the following steps:

[0030] (1) Screening: Screen out mature jujubes, and screen jujubes of the same level according to variety, maturity and size for use;

[0031] (2) Cleaning: The selected jujubes are firstly cleaned by ultrasonic sterilization, and then sprayed with pure water. The conditions of ultrasonic sterilization and cleaning are ultrasonic cleaning and ultraviolet lamp sterilization at 32°C for 50 minutes. The ultrasonic power is 530W, and the ultraviolet light The lamp power is 320W; the pure water spray cleaning time is 4.5min;

[0032] (3) Steaming: put the cleaned jujubes into -20°C for 6 minutes, and then steam the jujubes under the conditions of 0.15MPa and 125°C using a bamboo steamer made of Polygonatum odoratum;

[0033] (4) Sun-dried: the steamed jujubes are dried in sunlight under natural conditions to a moisture content of 15%;

[0034] (5) Packing: weigh and pack at room temperature, a...

Embodiment 3

[0036] A kind of preparation method of cooked jujube, comprises the following steps:

[0037] (1) Screening: Screen out mature jujubes, and screen jujubes of the same level according to variety, maturity and size for use;

[0038] (2) Cleaning: The selected jujubes are cleaned by ultrasonic sterilization first, and then sprayed with pure water. The conditions of ultrasonic sterilization and cleaning are ultrasonic cleaning and ultraviolet lamp sterilization at 35°C for 45 minutes. The ultrasonic power is 550W, and the ultraviolet light is Lamp power is 350W; pure water spray cleaning time is 5min;

[0039] (3) Steaming: put the cleaned jujubes into -20°C for 7 minutes, and then steam the jujubes under the conditions of 0.15 MPa and 125°C using a bamboo steamer made of Polygonatum odoratum;

[0040] (4) Sun-dried: the steamed jujubes are dried in sunlight under natural conditions to a moisture content of 16%;

[0041] (5) Packing: weigh and pack at room temperature, and get r...

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PUM

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Abstract

The invention discloses a preparation method of dried ripe jujubes, and belongs to the field of food processing. The preparation method of dried ripe jujubes comprises the following steps: screening:screening ripe jujubes, and screening out the jujubes of the same grade for later use according to the variety, ripeness and size; cleaning: cleaning the screened jujubes; steaming: steaming the cleaned jujubes by using a bamboo steamer; drying in the sun: drying the jujubes in the sun under natural conditions; and bagging: performing weighing, packaging and sterilization at room temperature. According to the invention, the jujubes are steamed after freezing, so that the jujubes are not only high in nutrient preservation, but also have a good taste, less wrinkles, a good color and more beautiful appearance. Moreover, the preparation process is simple, easy to realize industrial production, high in production efficiency and low in cost.

Description

technical field [0001] The invention relates to the field of food processing, in particular to a method for preparing dried cooked dates. Background technique [0002] Jujube, also known as jujube, jujube, jujube thorn, jujube, jujube, Rhamnaceae jujube, the fruit of jujube tree, can be eaten fresh, the fruit of jujube is sweet, rich in vitamin C and P, can nourish blood and lower blood pressure , enhance human immunity, and at the same time, jujube also contains a lot of vitamins, various trace elements and sugar. Studies have shown that it has certain effects on protecting the liver, calming the nerves, and can also be made into dried jujubes and candied dates , red dates, smoked dates, black dates, wine dates and tooth dates and other candied fruits and preserved fruits can also be used as date paste, date noodles, date wine, date vinegar, etc., as raw materials for the food industry. [0003] At present, dried jujubes on the market are mainly sliced ​​and dried after be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L19/00A23L33/00
CPCA23L19/00A23L33/00Y02A40/90
Inventor 孙建辉
Owner 孙建辉
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