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Preparation method of dragon fruit juice from concentrate

A production method, dragon fruit technology, applied in the direction of food science, etc., can solve the problems of large loss of functional components, etc., and achieve the effects of increasing permeability, high extraction rate, and facilitating storage, transportation, sales and consumption

Inactive Publication Date: 2016-09-21
HEYUAN CITY INST OF MODERN AGRI SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the defects such as the very large loss of functional components of the existing pitaya concentrated juice, the invention provides a preparation method of pitaya reduced juice

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Pitaya peel powder: Use a material grinder to crush the washed dragon fruit peel, and pour the dragon fruit peel powder into the extraction pot;

[0026] (2) Pitaya peel powder solution: add 20ml of 0.1mol L-1 hydrochloric acid-ethanol solution and 10ml of 60%vol ethanol into the extraction pot, and stir evenly for 10min to obtain the pitaya peel powder solution;

[0027] (3) Ultrasonic extraction: Ultrasonic extraction of the dragon fruit peel powder solution in step (2) with a power of 60% for 10 minutes and a temperature of 40°C;

[0028] (4) Filtration: use a Buchner funnel to filter the dragon fruit peel powder solution after ultrasonic extraction, and take the filtrate, which is pitaya peel juice;

[0029] (5) Add acetic acid: take pitaya peel juice, add 20% acetic acid to make the concentration of acetic acid in pitaya peel juice 5%;

[0030] (6) Column passing: Pour the dragon fruit peel juice containing acetic acid into a chromatographic column filled with...

Embodiment 2

[0035] (1) Pitaya peel powder: Use a material grinder to crush the washed dragon fruit peel, and pour the dragon fruit peel powder into the extraction pot;

[0036] (2) Pitaya peel powder solution: add 20ml of 0.1mol L-1 hydrochloric acid-ethanol solution and 10ml of 60%vol ethanol into the extraction pot, and stir evenly for 10min to obtain the pitaya peel powder solution;

[0037] (3) Ultrasonic extraction: Ultrasonic extraction of the dragon fruit peel powder solution in step (2) with a power of 70% for 15 minutes and a temperature of 50°C;

[0038] (4) Filtration: use a Buchner funnel to filter the dragon fruit peel powder solution after ultrasonic extraction, and take the filtrate, which is pitaya peel juice;

[0039] (5) Add acetic acid: take pitaya peel juice, add 20% acetic acid to make the concentration of acetic acid in pitaya peel juice 5%;

[0040] (6) Column passing: Pour the dragon fruit peel juice containing acetic acid into a chromatographic column filled with...

Embodiment 3

[0045] (1) Pitaya peel powder: Use a material grinder to crush the washed dragon fruit peel, and pour the dragon fruit peel powder into the extraction pot;

[0046] (2) Pitaya peel powder solution: add 20ml of 0.1mol L-1 hydrochloric acid-ethanol solution and 10ml of 60%vol ethanol into the extraction pot, and stir evenly for 10min to obtain the pitaya peel powder solution;

[0047] (3) Ultrasonic extraction: Ultrasonic extraction of the dragon fruit peel powder solution in step (2) with a power of 80% for 20 minutes and a temperature of 60°C;

[0048] (4) Filtration: use a Buchner funnel to filter the dragon fruit peel powder solution after ultrasonic extraction, and take the filtrate, which is pitaya peel juice;

[0049] (5) Add acetic acid: take pitaya peel juice, add 20% acetic acid to make the concentration of acetic acid in pitaya peel juice 5%;

[0050] (6) Column passing: Pour the dragon fruit peel juice containing acetic acid into a chromatographic column filled with...

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Abstract

The invention discloses a preparation method of dragon fruit juice from concentrate. The method comprises steps as follows: (1) preparation of dragon fruit peel powder; (2) preparation of a dragon fruit peel powder solution; (3) ultrasonic extraction; (4) adding of acetic acid; (5) column chromatographic separation; (6) separation of anthocyanin; (7) purification of an anthocyanin extracting solution; (8) obtaining of the dragon fruit juice from concentrate. According to the preparation method of the dragon fruit juice from concentrate, the dragon fruit juice from concentrate is developed, has high content of functional ingredients and is easily stored, transported, sold and taken; ultrasonic extraction is performed in the preparation method of the dragon fruit juice from concentrate, the permeability of dragon fruit peel cells is improved, and the extraction rate is higher; wet treatment is performed in advance during preparation of the dragon fruit juice from concentrate, and the condition that dragon fruit cells and functional ingredients suddenly swell and are damaged after contacting with water is prevented.

Description

technical field [0001] The invention belongs to the technical field of fruit juice production, and in particular relates to a production method of pitaya reduced juice. Background technique [0002] The nutritional value of the skin of dragon fruit is very high, especially rich in anthocyanins, so it is best to remove a thin layer of the skin and squeeze the skin, the color of the juice will be very beautiful. In addition to being rich in albumin, dragon fruit also has a more special ingredient - anthocyanin. Anthocyanins are contained in grape skins, red beets and other fruits and vegetables, but the content of anthocyanins in dragon fruit is the highest, especially in red meat fruits. It has anti-oxidation, anti-free radical, anti-aging effects, and can also improve the prevention of brain cell degeneration and inhibit the occurrence of dementia. At the same time, dragon fruit also contains vitamin C which can whiten the skin and rich water-soluble dietary fiber which ha...

Claims

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Application Information

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IPC IPC(8): A23L2/04A23L2/10
CPCA23L2/04A23L2/102
Inventor 严汉彬戴添基徐艳邱元凯何顺飞
Owner HEYUAN CITY INST OF MODERN AGRI SCI & TECH
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