Red pitaya whole fruit powder and preparation method thereof

A technology for red pitaya and fruit powder, which is applied in the field of food processing, can solve the problems of unstable quality, loss of nutrients, and difficulty in carrying, etc., and achieves the effects of convenient production process, improved rehydration ratio, and convenient storage and transportation.

Inactive Publication Date: 2015-11-04
ZHEJIANG NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the processed products of red pitaya are mainly red pitaya wine, red pitaya juice, red pitaya fruit cake, etc., but these products have disadvantages such as not easy to carry, unstable quality, and high loss of nutrients.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The preparation method of red dragon fruit whole fruit powder, the method comprises the following steps:

[0022] (1) Fresh red pitaya, peeled, and beaten with a homogenizer to obtain 250g of red pitaya pulp;

[0023] (2) Dilute the red pitaya pulp 8 times, add 0.5% β-cyclodextrin, and use a homogenizer to homogenize the prepared red pitaya pulp. The pressure of the homogenizer is 20-25 MPa;

[0024] (3) Spray drying: the homogeneous fruit pulp is prepared in the spray dryer for whole fruit powder; air inlet temperature: 200 ℃; air outlet temperature: 100 ℃; feeding speed: 10 ml / min;

[0025] (4) Testing and packaging: Determination of betaine, dietary fiber, and water content of the red pitaya whole fruit powder, and packaging in small packaging bags. The red heart pitaya whole fruit powder was 37.5 g, and the powder extraction rate was 15%; the betaine content of the whole fruit powder was 3.43 mg / g; the water content was 4.2%; the rehydration ratio was 8.3; the die...

Embodiment 2

[0027] The preparation method of red dragon fruit whole fruit powder, the method comprises the following steps:

[0028] (1) Fresh red pitaya, peeled, and beaten with a homogenizer to obtain 250g of red pitaya pulp;

[0029] (2) Dilute the red dragon fruit pulp 9 times, add 0.5% β-cyclodextrin, and use a homogenizer to homogenize the prepared red dragon fruit pulp. The pressure of the homogenizer is 20-25MPa;

[0030] (3) Spray drying: The homogeneous fruit pulp is prepared in a spray dryer for whole fruit powder; inlet air temperature: 200°C; outlet air temperature: 100°C; feed rate: 15 ml / min;

[0031] (4) Testing and packaging: Determination of betaine, dietary fiber, and water content in red pitaya whole fruit powder, and packaging in small packaging bags. The whole fruit powder of pitaya with red heart was 37.5 g, and the powder extraction rate was 15%; the betaine content of fruit powder was 3.4 mg / g; the water content was 4.2%; the rehydration ratio was 8.0; the dietar...

Embodiment 3

[0033] The preparation method of red dragon fruit whole fruit powder, the method comprises the following steps:

[0034] (1) Frozen red dragon fruit, peeled, and beaten with a homogenizer to obtain 250g of red dragon fruit pulp;

[0035] (2) Dilute the red dragon fruit pulp 10 times, add 0.5% β-cyclodextrin, and use a homogenizer to homogenize the prepared red dragon fruit pulp. The pressure of the homogenizer is 20-25 MPa;

[0036] (3) Spray drying: The homogeneous pulp is prepared in a spray dryer for whole fruit powder; inlet air temperature: 180°C; outlet air temperature: 100°C; feed rate: 10 ml / min;

[0037] (4) Testing and packaging: Determination of betaine, dietary fiber, and water content of the red pitaya whole fruit powder, and packaging in small packaging bags. The whole fruit powder of red pitaya was 30 g, and the powder extraction rate was 12%; the content of betaine in the powder was 3.4 mg / g; the water content was 4.3%; the rehydration ratio was 8.3; the dieta...

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Abstract

The invention relates to the technical field of food processing, and mainly includes red pitaya whole fruit powder and a preparation method thereof. Red pitaya whole fruit powder, the red pitaya whole fruit powder is prepared by mixing red pitaya pulp with β-cyclodextrin and then freeze-drying or spray drying, the red pitaya pulp is prepared from fresh or frozen red pitaya Prepared by peeling and beating, the added amount of the β-cyclodextrin is 0.2-1.0% of the dry weight of the red dragon fruit pulp, and the content of betaine in the whole fruit powder of the red pitaya is ≥3.4mg / g; Water volume ≤4.5%; rehydration ratio: 8.0~10; dietary fiber ≥11.0%; fatty acid content ≥7%. The red pitaya whole fruit powder of the present invention is a pure natural full-nutrition fruit powder, which ensures the instant effect and mouthfeel of the fruit powder and the special flavor of the red pitaya, is convenient for storage and transportation, is easy to carry, and is a product with good market prospects.

Description

technical field [0001] The invention relates to the technical field of food processing, and mainly includes red pitaya whole fruit powder and a preparation method thereof. technical background [0002] Dragon fruit (Pitaya), whose real name is Qinglong fruit and red dragon fruit, is a plant of the genus Trigonum in the cactus family. Native to tropical Central America. Dragon fruit is rich in nutrition and has unique functions. It contains water-soluble dietary fiber and rich vitamins. Red heart dragon fruit is a rare variety of dragon fruit. Its fruit is bright in color, tender in texture, cool in taste and fragrant on lips and teeth. It is rich in a special ingredient --- betaine; this is a natural pigment and also a A powerful antioxidant that protects the body from free radical damage. In addition, dragon fruit seeds also have a high fat content. The dragon fruit harvest season is August and October, which coincides with the high temperature season, so the fruit is n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L1/212A23P1/06A23L19/00A23P10/47
CPCA23L19/01A23V2002/00A23V2300/38
Inventor 徐丽珊张丽丽沈佳鑫曹晶晶
Owner ZHEJIANG NORMAL UNIVERSITY
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