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Microwave drying instant red date powder and production method thereof

A technology of microwave drying and production method, which is applied in application, food preparation, food science, etc., can solve the problems of high sugar content, high monosaccharide content, waste, etc., and achieve good taste and flavor, good economic benefits, and convenient eating Effect

Inactive Publication Date: 2011-04-06
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to various reasons, there are not many problems, such as due to the special texture characteristics of jujube itself: high sugar content, especially extremely high monosaccharide content, low moisture content, resulting in increased viscosity and low glass transition temperature Therefore, in the production process, the drying and juicing process is very difficult, which is not conducive to the large-scale production of other fruit and vegetable products with mature processing methods and mechanical equipment; in addition, because the current machinery for processing red dates is relatively backward, processing The equipment cannot meet the needs of jujube industrial production. Therefore, after the jujube is harvested, it cannot be processed in time, but a large amount of rot and deterioration, resulting in serious waste. It also seriously hurts the production enthusiasm of jujube farmers in jujube areas, resulting in a situation of high yield but not good harvest for many years , do not take advantage of the economic and social development of the jujube district

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] In the microwave-dried instant jujube powder of the present invention, the weight ratio of soluble solids in jujube juice to maltodextrin is 5:5.

[0019] The production method of the instant jujube powder of microwave drying of the present invention comprises the following steps:

[0020] (1) Juice extraction: After fresh red dates are washed, drained, pitted, baked, and crushed, the diameter of the pulp is 2mm, then, add 320uL / g pectin compound enzyme and 5mL / g water, at a temperature of 35°C enzymatic hydrolysis for 1 hour under the condition of microwave power of 540W for 120s or ultrasonic power of 125W and temperature of 50°C for 30min to obtain jujube juice, and finally filtered and concentrated under reduced pressure to form Jujube juice with a soluble solid content of 40%;

[0021] (2) Deployment: Add maltodextrin to the jujube juice concentrated in step (1), the weight ratio of maltodextrin and soluble solids in jujube juice is 5:5, and then transfer to a hig...

Embodiment 2

[0025] The microwave-dried instant jujube powder of the present invention, wherein the weight ratio of soluble solids in jujube juice: maltodextrin: soybean protein isolate: dextrin: β-cyclodextrin: soluble starch is 5: 3: 1.25: 0.5: 0.15 : 0.1.

[0026] The production method of the instant jujube powder of microwave drying of the present invention comprises the following steps:

[0027] (1) Juice extraction: After fresh red dates are washed, drained, pitted, baked, and crushed, the diameter of the pulp is 2mm, then, add 320uL / g pectin compound enzyme and 5mL / g water, at a temperature of 35°C enzymatic hydrolysis for 1 hour under the condition of microwave power of 540W for 120s or ultrasonic power of 125W and temperature of 50°C for 30min to obtain jujube juice, and finally filtered and concentrated under reduced pressure to form Jujube juice with a soluble solid content of 40%;

[0028] (2) Deployment: Add maltodextrin, soybean protein isolate, dextrin, β-cyclodextrin, and...

Embodiment 3

[0032] In the microwave-dried instant jujube powder of the present invention, the weight ratio of total solids in jujube juice to maltodextrin is 5:5.

[0033] The production method of the instant jujube powder of microwave drying of the present invention comprises the following steps:

[0034] (1) Pulping: Take fresh red dates, wash, drain, and bake, soak in water at 60°C for 1 hour according to the amount of water added at 8 mL / g, and then soften and pretreat them under microwave power of 720W for 2 minutes; then pour Put it into a tissue masher to crush and make an oar, then use a sieve with an aperture of 1mm to peel and remove the core to obtain the red date meat, and then through the high-speed tissue masher rotating speed under 12000r / min for beating; 360uL / g, after heat preservation and enzymolysis at 45°C for 1h, pulverize 3 times in a colloid mill with a gap of 10μm to obtain jujube pulp with a total solid content of 20%;

[0035] (2) Deployment: Add maltodextrin to...

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PUM

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Abstract

The invention discloses microwave drying instant red date powder and a production method thereof. The components of instant red date powder comprise red dates and a drying auxiliary agent. The production method comprises the steps of: removing skins of the leached red data juice, removing kernels, carrying out enzymolysis and ultramicro crushing, and then mixing with the drying auxiliary agent, homogenizing, spreading and then microwave-drying, and finally packaging the red date powder into the finished product of the instant red date powder. The instant red date powder drinks have the advantages of completed preserved nutrients, good taste and mouthfeel and better solubility, have multiple nutrition and health protection functions of the red dates, are convenient for storage and carrying, are good in dissolving ability, achieve the effect of an instant product, and are more convenient for eating.

Description

technical field [0001] The invention relates to an instant red date powder and a production method thereof, in particular to a microwave-dried instant red date powder and a production method thereof. Background technique [0002] In recent years, with the continuous improvement of people's living standards, great changes have taken place in people's diet structure. People pay more and more attention to health food and the therapeutic effect of food, and the public's demand for health food is increasing rapidly. As a traditional medicinal and edible fruit, jujube is rich in nutrition and has good edible value, nutritional value and medicinal value. According to statistics, jujube contains a variety of active ingredients, such as polysaccharides, vitamin A, B1, B2, C, E, P and niacin, known as "natural vitamin pills", are supplements for human anti-aging; minerals and trace elements in jujube include: calcium, phosphorus, iron, potassium, manganese, selenium, etc.; flavonoids,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L2/39A23L1/212A23L2/52A23L2/66A23L19/00
Inventor 杨芙莲聂小伟
Owner SHAANXI UNIV OF SCI & TECH
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