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Freeze-dried powder of fruit and vegetable extracts and preparation method of freeze-dried powder

A technology of fruit and vegetable extracts and freeze-dried powder, which is applied in the directions of food ingredients containing natural extracts, bacteria used in food preparation, food science, etc. Increases solubility and stability, reduces ice crystal stab loss, and improves yield

Inactive Publication Date: 2016-07-27
邵素英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cost of raw materials for preparing sericin antifreeze peptides from silkworm cocoons is high, and the antifreeze effect is single and still not ideal.

Method used

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  • Freeze-dried powder of fruit and vegetable extracts and preparation method of freeze-dried powder
  • Freeze-dried powder of fruit and vegetable extracts and preparation method of freeze-dried powder
  • Freeze-dried powder of fruit and vegetable extracts and preparation method of freeze-dried powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] Embodiment 1 raw material preparation

[0073] 1. Preparation of Dietary Fiber Powder

[0074] The preparation method of the dietary fiber powder comprises the following steps: uniformly mixing inulin, apple fiber, and wheat fiber in a mass ratio of 5:3:2, ultrafinely pulverizing to a particle size of 5 μm, and adjusting the moisture content of the pulverized product to 20%, Extruded and puffed at a screw speed of 170r / min and a temperature of 192°C, adding water 3 times the mass of the puffed product, ultrasonic extraction at room temperature 300W, 40KHz for 12min, and then under the conditions of electric field strength 30kV / cm, pulse time 500μs, pulse frequency 300Hz Perform high-voltage pulsed electric field treatment for 12 minutes; adjust the pH value to 5.5 with lactic acid, add 0.2% of the mass of the mixture of biological enzymes, and enzymolyze at 50°C for 35 minutes; the enzymatic solution is concentrated under reduced pressure and freeze-dried to obtain diet...

Embodiment 2

[0081] A wolfberry extract freeze-dried powder, mainly prepared from the following raw materials in parts by weight:

[0082] 40 parts of wolfberry, 20 parts of dietary fiber powder, 25 parts of antifreeze, 10 parts of probiotics, 6 parts of Lactobacillus plantarum powder;

[0083] The quality composition of described antifreeze agent is: plant extract: trehalose: sericin peptide=45:5:2;

[0084] The weight composition of the prebiotic factor is: 20 parts of isomaltooligosaccharide, 20 parts of galactooligosaccharide, 15 parts of fructooligosaccharide, 15 parts of xylooligosaccharide, 8 parts of stachyose, 8 parts of soybean oligosaccharide, cottonseed 7 parts of sugar, 5 parts of maltooligosaccharide;

[0085] The Lactobacillus plantarum powder is prepared by a conventional method using Lactobacillus plantarum CGMCC NO.11763 as the starting strain, and its live bacteria content is: 9×10 12 cfu / g; wherein, the cryoprotectant used in the freeze-drying process is the above-men...

Embodiment 3

[0092] A kind of freeze-dried powder of jujube extract, which is mainly prepared from the following raw materials in parts by weight:

[0093] 35 parts of red dates, 15 parts of dietary fiber powder, 23 parts of antifreeze, 8 parts of probiotics, 4 parts of plantarum lactobacillus powder;

[0094] The quality composition of described antifreeze agent is: plant extract: trehalose: sericin peptide=37:2:1;

[0095] The weight composition of the prebiotic factor is: 15 parts of isomaltooligosaccharide, 15 parts of galactooligosaccharide, 10 parts of fructooligosaccharide, 10 parts of xylooligosaccharide, 5 parts of stachyose, 5 parts of soybean oligosaccharide, cottonseed 4 parts of sugar, 3 parts of maltooligosaccharide;

[0096] The Lactobacillus plantarum powder is prepared by a conventional method using Lactobacillus plantarum CGMCC NO.11763 as the starting strain, and its live bacteria content is: 8×10 12 cfu / g; wherein, the cryoprotectant used in the freeze-drying process ...

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Abstract

The invention discloses freeze-dried powder of fruit and vegetable extracts. Fruits and vegetables are taken as raw materials, a low-temperature extraction technology is adopted in the whole process, and obtained extracts keep natural color, flavor and taste of the fruits and the vegetables to the greatest extent; an anti-freeze agent which is prepared from natural plant raw materials and has a remarkable cryoprotective effect replaces traditional and existing cryoprotective agents in the vacuum freeze drying process of extracts, the freeze loss caused by a freeze-drying process is further greatly reduced, biological activity and nutritional value of the freeze-dried powder of the extracts are effectively improved, the freeze-dried powder of the extracts is scientifically compounded with functional dietary fiber powder, prebiotic factors and lactobacillus plantarum powder, the medicine and food nutrition balance property as well as functionality, solubility and the probiotic property of the freeze-dried powder of the extracts is remarkably improved, the guarantee period of a product is prolonged, and finally, the freeze-dried powder of fruit and vegetable extracts is prepared, contains more nutritional substances and bioactive substances and is high in function, good in anti-freezing effect and solubility and low in cost.

Description

technical field [0001] The invention relates to the preparation of freeze-dried powder, in particular to a freeze-dried fruit and vegetable extract powder and a preparation method thereof. Background technique [0002] Freeze-dried powder is a sterile powder obtained by freezing the medicinal liquid into a solid state in a sterile environment, and sublimating and drying the water in a vacuum. Freeze-drying is an effective method for drying heat-sensitive products and substances that need to maintain biological activity. This method is to freeze the moisture contained in the product to be dried at a low temperature, and then dry it in a vacuum environment, so that the moisture is directly sublimated from a solid state to water vapor and removed from the product to make the product active and dry. This method effectively prevents changes in the physical, chemical and biological properties of the product, and causes less damage to the structure and characteristics of biologica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L2/39A23L2/04A23L2/52A23L2/84A23L5/30A23L33/00A23L33/105A23L33/135A23L33/21
CPCA23L2/04A23L2/39A23L2/52A23L2/84A23V2002/00A23V2400/169A23V2200/3262A23V2200/3204A23V2200/324A23V2200/14A23V2250/21A23V2300/10A23V2300/12A23V2300/48
Inventor 邵素英
Owner 邵素英
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