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Method for preparing crisp carrot slices, the crisp carrot slices and full nutrition carrot powder

A technology of carrot slices and carrots, applied in food drying, climate change adaptation, food science and other directions, can solve the problems of low dehydration efficiency, high drying energy consumption, high oil content, shorten drying time, reduce energy consumption, and reduce operation. The effect of energy consumption

Inactive Publication Date: 2017-10-24
INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above technical problems, the present invention provides a method for preparing carrot chips, which solves the problems of high oil content of carrot oil bath products, low quality of traditional hot-air drying products, high energy consumption of vacuum freeze-drying, and low dehydration efficiency; Compared with other dried carrots, the retention rate of carotenoids in carrots prepared by the present invention is significantly improved

Method used

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  • Method for preparing crisp carrot slices, the crisp carrot slices and full nutrition carrot powder
  • Method for preparing crisp carrot slices, the crisp carrot slices and full nutrition carrot powder
  • Method for preparing crisp carrot slices, the crisp carrot slices and full nutrition carrot powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] (1) Selection, washing and slicing:

[0054] 1a) Select carrots with a diameter of 25-60 mm, remove corrupted, damaged, deformed and diseased carrots, and clean them;

[0055] 1b) Slicing the carrot after cleaning in step 1a) by mechanical means, with a slice thickness of 6 mm;

[0056] (2) Drying with solar energy combined with vacuum heat pump: The conditions for drying carrot slices with solar energy combined with vacuum heat pump are: vacuum pressure 3kPa, drying temperature 70°C.

[0057] During the period, the auxiliary instantaneous pulsed strong magnetic field cooperates with the pulsating controllable instantaneous pressure difference treatment: Among them, during the pulsation controllable instantaneous pressure difference treatment process, the pressure of the treatment chamber is increased to 0.5MPa, the temperature reaches 150°C, the stagnation time is 20s, and the pressure after pressure relief is 3kPa; the cycle interval of pulsating and controllable ins...

Embodiment 2

[0076] The production method of carrot chips is substantially the same as the method described in Example 1, except that:

[0077] The slice thickness of the carrot slices in the step (1) is 7mm;

[0078] Step (2) During the drying process of solar combined vacuum heat pump, the drying temperature is 45°C and the vacuum degree is 10kPa;

[0079] During the period, in step (2), the auxiliary instantaneous pulse strong magnetic field coordinated with the pulsating controllable instantaneous pressure difference processing parameters are: the instantaneous pressure difference processing temperature is 110°C, the pressure is 0.15MPa, the stagnation time is 2min, and the pressure chamber pressure is 10kPa after pressure release. During the period, the pressure difference flash operation was performed twice; during the pulsating and controllable instantaneous pressure difference treatment process, the intensity of the instantaneous pulsed strong magnetic field loaded on the treatment c...

Embodiment 3

[0092] The production method of carrot chips, as described in Example 1, the difference is:

[0093] The slice thickness of the carrot slices in the step (1) is 4mm;

[0094] Step (2) During the drying process of solar energy combined with vacuum heat pump, the drying temperature is 60°C, and the vacuum degree is 5kPa; the instantaneous pressure difference treatment described in step (2) is after the sample is placed in the processing chamber, and then dried with solar energy combined with vacuum heat pump for 2 minutes , carry out differential pressure flash evaporation, the steam temperature is 140°C, the pressure is 0.35MPa, and the treatment time is 40s; after that, the pressure is released to 5kPa, and the vacuum combined with solar energy is used for drying, with an interval of 2min, and the differential pressure flash evaporation operation is repeated 6 times; finally, the solar energy is used Combined with vacuum heat pump drying, the temperature is 70°C, and the vacuu...

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Abstract

The present invention discloses a method for preparing crisp carrot slices. The method comprises the following steps: carrot slices are subjected to an solar energy combined vacuum heat pump drying treatment, at the same time an instantaneous pulse strong magnetic field coordinated with pulsation controllable instantaneous differential pressure treatment is used, a cycle treatment is conducted, in each of a cycle, a pressure in a treatment chamber rises firstly, a temperature of materials rises instantly to be 110 DEG C-150 DEG C, the pressure in the treatment chamber then drops instantaneously, besides, in each of the cycle, when a pressure relief of the treatment chamber begins, the instantaneous pulse strong magnetic field is loaded at the same time at an intensity of 60-80 T, and then when the pressure relief of the treatment chamber is ended, the loading stops. The present invention discloses the crisp carrot slices and full nutrition carrot powder. The preparation method solves problems that oil bathed carrot products are high in an oil content, quality of the products dried by traditional hot air drying is low, a vacuum freeze-drying is high in energy consumption, a dehydration efficiency is low, etc. The prepared products are obviously improved in a preservation rate of carrot carotenoids.

Description

technical field [0001] The invention relates to the field of food processing, in particular to a method for preparing carrot chips, carrot chips and carrot nutritional whole powder. Background technique [0002] Carrot is one of the top ten vegetable crops in the world. It enjoys the reputation of "little ginseng" and "golden bamboo shoot" because it is rich in carotenoids, dietary fiber and other bioactive substances that promote human health. In particular, carrots are rich in carotenoids, which have attracted widespread attention because of their pro-VA activity, anti-cancer, prevention of cardiovascular disease and macular degeneration, and enhancement of immunity. my country's carrot planting area and output rank first in the world. Carrot processing mainly includes carrot juice, dehydrated carrots, carrot puree, carrot powder, etc., and there is a relative shortage of ready-to-eat carrot products. [0003] At present, the carrot production method widely used in the fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L19/00A23L5/00A23L5/20A23L5/30
CPCA23L5/00A23L5/20A23L5/30A23L19/01A23V2002/00A23V2300/10Y02A40/924
Inventor 毕金峰易建勇周林燕彭健吴昕烨周沫吕健候春辉
Owner INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI
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