Hippophae rhamnoides whole fruit powder preparation method capable of reducing caking rate and loss rate of bioactive substances

A bioactive substance and loss rate technology, applied in food science, grain processing, food preservation, etc., can solve problems such as the decline in nutritional value and sensory quality of fruit powder, poor fluidity of powder products, easy moisture absorption and caking quality, etc. , to achieve the effect of high cost performance, reduce caking rate and improve storage

Pending Publication Date: 2022-01-25
XINJIANG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the traditional preparation process of seabuckthorn fruit powder, the main components of seabuckthorn will be affected by factors such as oxygen, temperature, and metal ions. There will be different degrees of agglomeration, which will make the fluidity of the powder product worse, and eventually lead to a decrease in the nutritional value and sensory quality of the fruit powder

Method used

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  • Hippophae rhamnoides whole fruit powder preparation method capable of reducing caking rate and loss rate of bioactive substances
  • Hippophae rhamnoides whole fruit powder preparation method capable of reducing caking rate and loss rate of bioactive substances
  • Hippophae rhamnoides whole fruit powder preparation method capable of reducing caking rate and loss rate of bioactive substances

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Put the seabuckthorn fruit into the beater, and simultaneously dropwise add 1.5% of the mass of the seabuckthorn fruit with an aqueous solution containing 0.4g / L glucose oxidase or 3.0g / L ascorbic acid, or simultaneously dropwise add 1.5% of the mass of the seabuckthorn The aqueous solution containing 0.4g / L glucose oxidase and 3.0g / L ascorbic acid is compared with the traditional beating at room temperature, adjust the input of liquid carbon dioxide and reduce the ambient temperature to 0-10°C, beat for 1min, take the pulp, and pass through 3000r / min Centrifuge for 1 min to remove the pomace (skin, pomace, seeds) to obtain the puree, and test the relevant indicators.

[0035] Comparative Examples 1-4 are basically the same as Example 1, except that individual factors are different, wherein the aqueous solution of 0.4g / L glucose oxidase is denoted as A, and the aqueous solution of 3.0g / L ascorbic acid is denoted as B, containing 0.4g / L glucose oxidase and 3.0g / L ascorbi...

Embodiment 2

[0041] The eutectic point of the pulp prepared in Example 1 was measured by the electrical resistance method to be -25° C., the pre-freezing temperature was 0-5° C. below the eutectic point, and the typical pre-freezing time was 1.5-2.0 h. Vacuum freezing is adopted, and the thickness of the material is 4mm. At this time, the drying rate is the best, and the moisture content is 60%. After process optimization, the microwave power is finally adjusted to 6kW, the pressure of the drying chamber is 100Pa, and the drying temperature is maintained at 60-65°C. When the central temperature is lower than the lower limit temperature, the microwave switch is turned on, and when the central temperature is higher than the upper limit temperature, the microwave switch is turned off. Seabuckthorn fruit The final water content of the starch powder is 6%. After analysis, under the optimized conditions, the content of vitamin C in seabuckthorn pulp powder is 376.29mg / 100g, the content of flavon...

Embodiment 3

[0043]Spread the pomace obtained in Example 1 to a thickness of 6mm in the material tray, pre-freeze to -18°C, and the typical pre-freezing time is 0.8h; -90°C, the feeding frequency is 15Hz; the crushed pomace is sent to a microwave vacuum freeze dryer, the working parameters are microwave power 6kW, drying temperature 60°C, drying time 6h, drying chamber pressure 100Pa, and the medium Seabuckthorn pomace powder with a particle size of about 40 μm. After analysis, the vitamin C content of seabuckthorn pomace powder is about 3.46mg / 100g, the flavonoid content is 5.231mg / g, and the color, swelling and water solubility are all significantly improved.

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Abstract

The invention relates to the technical field of hippophae rhamnoides fruit powder preparation, in particular to a hippophae rhamnoides whole fruit powder preparation method capable of reducing the caking rate and the loss rate of bioactive substances. The preparation method comprises the following steps: pre-freezing hippophae rhamnoides fruits, taking liquid carbon dioxide as a refrigerant, synchronously dropwise adding a compound protective agent of glucose oxidase and ascorbic acid, performing low-temperature deoxygenation pulping and centrifugal separation to obtain hippophae rhamnoides fruit pulp and hippophae rhamnoides fruit residues, performing microwave vacuum freeze drying on the hippophae rhamnoides fruit pulp to prepare hippophae rhamnoides fruit pulp powder, preparing hippophae rhamnoides fruit residue powder from hippophae rhamnoides fruit residues through pre-freezing, ultra-micro cryogenic grinding and microwave vacuum freeze-drying in sequence, then adding the hippophae rhamnoides fruit residue powder and silicon dioxide into hippophae rhamnoides fruit pulp powder, and mixing to obtain the hippophae rhamnoides whole fruit powder. The hippophae rhamnoides fruit powder prepared by adopting the method has the characteristics of high product yield, low caking rate, high bioactive substance retention rate, high drying efficiency and the like.

Description

technical field [0001] The invention relates to the technical field of preparation of seabuckthorn fruit powder, in particular to a method for preparing seabuckthorn whole fruit powder which reduces the caking rate and the loss rate of biologically active substances. Background technique [0002] Sea buckthorn (Latin scientific name: Hippophae rhamnoides Linn.) is a deciduous shrub, which is characterized by drought tolerance, wind and sand resistance, and can survive on salinized land, so it is widely used in water and soil conservation. Seabuckthorn is grown in large quantities in northwest China for desert greening. Seabuckthorn is a medicinal and edible plant. The roots, stems, leaves, flowers, and fruits of seabuckthorn, especially the fruit of seabuckthorn, are rich in nutrients and biologically active substances, and can be widely used in many fields of the national economy such as food, medicine, light industry, aerospace, agriculture, animal husbandry and fishery. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L19/00A23L3/44A23L5/30A23L29/00B02C19/18
CPCA23L19/01A23L19/09A23L3/44A23L5/34A23L29/015B02C19/186A23V2002/00A23V2300/10A23V2300/20
Inventor 单良赵学旭衣春敏武安琪武蕊马培轩
Owner XINJIANG AGRI UNIV
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